Mozilla

Improve Firefox on Windows by developing fixes, new features, and collaborating with a distributed team. | Degree or equivalent experience, strong C/C++ and Windows low-level programming skills, knowledge of web technologies, strong problem-solving, and communication skills. | Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The OS Integration team ensures Firefox and other Gecko-based products harmonize well with the host operating system and environment. We work on components of Firefox including, but not limited to, native crash reporting, OS abstraction layers, platform-specific features, sandboxing and hardening. We’re a distributed team with expertise in Windows, macOS, and Linux-based operating systems. In this role, you will be a member of the OS Integration team specializing in the Windows platform. What you’ll do: Improve the quality of Firefox on Windows by developing fixes and improvements, improving the user experience for hundreds of millions of users. Help develop and ship major new Firefox features on Windows. Work on cross-platform features and projects for other platforms such as macOS, Linux, and Android as needed. Collaborate with other teams by providing code review and technical direction. Work with a geographically-distributed development team. What you’ll bring: A degree in Computer Science or a related field or comparable work experience. A solid understanding of C and C++. Demonstrated experience with low-level systems programming on Windows. Knowledge of web technologies such as Javascript, HTML, and CSS. Strong problem-solving and debugging skills. Written and verbal communication skills with a collaborative mindset. Willingness to work effectively in a distributed team environment. Commitment to our values: Welcoming differences Being relationship-minded Practicing responsible participation Having grit What you’ll get: Generous performance-based bonus plans to all eligible employees - we share in our success as one team Rich medical, dental, and vision coverage Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) Quarterly all-company wellness days where everyone takes a pause together Country specific holidays plus a day off for your birthday One-time home office stipend Annual professional development budget Quarterly well-being stipend Considerable paid parental leave Employee referral bonus program Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D #LI-REMOTE Req ID: R2983 Hiring Ranges: US Tier 1 Locations $137,000—$183,000 USD US Tier 2 Locations $126,000—$186,000 USD US Tier 3 Locations $116,000—$155,000 USD

Improve Firefox on Windows through fixes, features, and cross-platform projects, collaborating with a distributed team. | Degree in CS or equivalent experience, strong C/C++, Windows systems programming, web tech knowledge, problem-solving, communication, teamwork. | Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we're shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we're doing this while never losing our focus on our core mission - to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren't beholden to any shareholders - only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The OS Integration team ensures Firefox and other Gecko-based products harmonize well with the host operating system and environment. We work on components of Firefox including, but not limited to, native crash reporting, OS abstraction layers, platform-specific features, sandboxing and hardening. We're a distributed team with expertise in Windows, macOS, and Linux-based operating systems. In this role, you will be a member of the OS Integration team specializing in the Windows platform. What you'll do: • Improve the quality of Firefox on Windows by developing fixes and improvements, improving the user experience for hundreds of millions of users. • Help develop and ship major new Firefox features on Windows. • Work on cross-platform features and projects for other platforms such as macOS, Linux, and Android as needed. • Collaborate with other teams by providing code review and technical direction. • Work with a geographically-distributed development team. What you'll bring: • A degree in Computer Science or a related field or comparable work experience. • A solid understanding of C and C++. • Demonstrated experience with low-level systems programming on Windows. • Knowledge of web technologies such as Javascript, HTML, and CSS. • Strong problem-solving and debugging skills. • Written and verbal communication skills with a collaborative mindset. • Willingness to work effectively in a distributed team environment. • Commitment to our values: • Welcoming differences • Being relationship-minded • Practicing responsible participation • Having grit What you'll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company's core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D #LI-REMOTE Req ID: R2983 Hiring Ranges: US Tier 1 Locations $137,000-$183,000 USD US Tier 2 Locations $126,000-$186,000 USD US Tier 3 Locations $116,000-$155,000 USD

Design and implement full-stack features, make architectural decisions, and collaborate to build a privacy-centric AI assistant product. | 10+ years software development with 5+ years frontend, 3+ years React and TypeScript, AI product experience preferred, strong system design and product sense, and open-source commitment. | Note: The job is a remote job and is open to candidates in USA. MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation, is seeking a Full-Stack Staff Product Engineer to develop a new privacy-centric AI assistant. The role involves designing and implementing features across the entire stack, making architectural decisions, and collaborating with a small team to create cross-platform experiences. Responsibilities • Design and implement end-to-end features across the stack. • Make architectural decisions that influence the entire product. • Build responsive UIs in React using modern patterns (hooks, server components, streaming). • Develop local-first data sync and storage strategies. • Integrate AI/LLM capabilities (streaming, embeddings, agentic workflows). • Create cross-platform desktop experiences with Tauri. • Implement email parsing, IMAP sync, and message intelligence. • Build real-time features using WebSockets and server-sent events. • Optimize performance for on-device ML inference. • Own the full product development cycle — from concept to release. Skills • 10+ years of professional software development experience • 5+ years focused on frontend development • 3+ years of experience with React • 3+ years of experience with TypeScript • Experience delivering vertically integrated features across the stack (monorepo environments a plus) • Strong system design skills — data flow, state management, caching, and API design • Strong product sense — attention to UX, reducing friction, and thinking beyond specs • Experience with AI product development (at least 1 year preferred) • Fast learner with a growth mindset — comfortable working with emerging tools and technologies • Excellent written and verbal communication skills • Proven ability to collaborate with developers, designers, and product managers • Commitment to open-source development and open standards • Experience with local-first architectures (CRDTs, SQLite, IndexedDB) • Building cross-platform apps (Electron, Tauri, React Native, etc.) • Working with AI/LLM APIs (OpenAI, Anthropic, local models) • Previous contributions to open-source projects or communities • Experience leading open-source project initiatives Benefits • Fully remote work & schedule flexibility • Latest Laptop • Remote Work Stipend • Professional Development Stipend • Access to Udemy Learning Platform • Industry Conferences • Company All Hands • 24 days PTO per year (prorated) • Your Birthday • Year-end Company Shutdown • Wellbeing Days • Public Holidays • Other Paid Leave • Wellbeing Stipend for Personal / Family Activities • 401(k) Contributions • Health, Dental, & Vision Insurance • Disability Insurance • Life Insurance • Employee Assistance Program • Paid Parental Leave • Paid Sick Days Company Overview • Mozilla provides internet solutions and offers firefox, thunderbird, and raindrop. It was founded in 1998, and is headquartered in Mountain View, California, USA, with a workforce of 501-1000 employees. Its website is https://www.mozilla.org.

Support full-cycle recruitment and manage day-to-day HR operations. Contribute to HR projects and assist in employee engagement initiatives. | Minimum of 3 years of professional HR experience with exposure to multiple aspects of HR operations is required. Experience in recruitment efforts in small or mid-sized organizations is preferred. | Why Thunderbird? MZLA Technologies Corporation (MZLA) is a wholly-owned, for-profit subsidiary of the Mozilla Foundation and the home of Thunderbird. Thunderbird is a global, free, and open-source email and productivity app, which has experienced significant growth in revenue, staff, and aspirations since its launch 20 years ago. Our revenue comes from our dedicated users around the world who generously fund our work, $10M in 2024. As we continue to expand our team and our product offerings, we remain dedicated to providing best-in-class productivity solutions independent of big tech. Operating as a small but dynamic team of 50 + staff across seven countries and time zones, we are part of the larger Mozilla family but maintain our distinct and independent identity from both the Mozilla Foundation and Mozilla Corporation. To learn more visit www.thunderbird.net. Our organizational culture is driven by our mission. We are committed to fostering openness and transparency as a member of the open-source community. We lean into collaboration, creativity, and diversity. We bring a hearty dose of scrappy grit and resilience to our lively and spirited team. Our operating principles leverage data informed decisions, ownership, speed and efficiencies to elevate our work and deliver innovative and impactful solutions to our users. The Opportunity: We are looking for an HR Generalist to join our growing People Team at MZLA. This is a role for someone with a solid foundation in HR and passion for recruiting who is eager to expand their expertise across the full spectrum of employee experience. The ideal candidate has supported successful hiring campaigns in small or mid-sized organizations and is ready to dive deeper into recruiting, HR systems, and employee programs. As part of a small but mighty team, you’ll play a key role in scaling our workforce over the next 12 months. Beyond recruitment, you’ll contribute to broader human resources initiatives such as implementing a new HRIS, revamping our career site, and improving processes and documentation. This role also offers opportunities to support engagement programs, including the planning and execution of our first global All Hands in 2026. You’ll collaborate closely with colleagues across People Operations, Finance, and Support, as well as teams of developers, designers, and marketers. This individual contributor position reports directly to the Manager, People Operations & Strategy. We’re committed to creating an amazing experience for our users, and you’ll play a key part in this effort. You will be working with our existing staff and community members from all over the globe to support the mission and objectives of MZLA Technologies Corp and the Thunderbird Project. This is a remote, full time position. We require strong written and verbal communication skills to facilitate effective work coordination across various virtual communication platforms. This role works closely with staff across Canada, US, and Europe. Consequently, applicants in the Eastern Standard time zone are strongly preferred. What you’ll do: Support full-cycle recruitment, including drafting job postings, managing applicant pipelines, and coordinating candidate communications. Partner with hiring managers to schedule interviews, gather feedback, and ensure a smooth candidate experience. Manage day-to-day HR operations, including onboarding, offboarding, and employee data management. Maintain HR documentation, systems, and records, ensuring accuracy and compliance with policies and practices. Contribute to HR projects such as HRIS implementation, career site updates, and process improvements. Assist in employee engagement initiatives, including planning and executing company-wide events. Identify opportunities to streamline and improve HR processes and documentation. Collaborate cross-functionally with colleagues across People Operations, Finance, and other teams to deliver effective People programs. What you’ll bring: Minimum of 3 years of professional HR experience, with exposure to multiple aspects of HR operations. Experience supporting recruitment efforts in a small or mid-sized organization (not required to have led campaigns). Strong skills in drafting job postings, reviewing applications, and managing applicant tracking systems Experience with top industry ATS platforms, preferably Greenhouse Familiarity with HRIS platforms and eagerness to learn new HR tools and technologies. Excellent organizational and communication skills, with attention to detail and follow-through. Ability to work cross-functionally with diverse teams including operations, technical, and creative groups. Bonus points for: Previous experience supporting the implementation or rollout of an HR platform (e.g., HRIS, ATS), including tasks such as data entry/migration, testing, documentation, or employee communications. Experience in employee engagement or event coordination. Fluency in other languages is an asset What you’ll get: We benchmark our base salaries to local markets and target the 60th percentile of the peer market. The salary ranges for this role are: Canada: $82,000 - $95,000 CAD US: $72,000 - $85,000 USD In addition to competitive salaries, we offer a comprehensive benefits package designed to support your whole self. Work & Career Fully remote work & schedule flexibility Latest Laptop and accessories Monthly Remote Work Stipend Professional Development Stipend Access to Udemy Learning Platform Industry Conferences Company All Hands Rest & Play 24 days PTO per year (prorated) Your Birthday Year-end Company Shutdown Wellbeing Days Public Holidays Other Paid Leave Wellbeing Stipend for Personal / Family Activities Health & Family 401(k) / RRSP Pension Contributions Health, Dental, & Vision Insurance Disability/Income Protection Insurance Life Insurance Employee Assistance Program Paid Parental Leave Paid Sick Days *Important Note* Applicants must reside in and have work authorization for the country location(s) specified in the posting. We are unable to consider applicants outside of these markets at this time. We are unable to provide visa sponsorship. Please apply directly through our career page. We carefully review every cover letter and screening question, so take the time to answer fully and let your personality shine through. MZLA Technologies Corporation (MZLA) Commitment to diversity, equity and inclusion MZLA believes in the value of diverse creative practices and forms of knowledge, and knows diversity, equity and inclusion are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities and expressions. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodations@thunderbird.net to request accommodation. #LI-DNI

Develop and enhance Firefox Profiler tools to improve browser performance and collaborate with engineers and community contributors. | 5+ years in systems software engineering with C++, 1+ year Rust experience, OS API expertise, multi-threaded debugging, and strong communication skills. | To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The Performance Tools team builds frameworks and tools that help engineers measure and improve performance across Mozilla products. We’re a distributed team based in North America and Europe, supporting both internal Mozilla engineers and the broader web developer community through tools like the Firefox Profiler. In this role, you will be responsible for low-level programming of the Firefox Profiler and other tools. Your focus will be on delivering an effective toolset for Firefox developers looking to track down and seize every opportunity to improve the quality of experience for our users. You will work closely with performance experts to identify and surface the most valuable measurements across a variety of platforms. What you’ll do: • Develop new features for the Firefox Profiler that will provide browser engineers and web developers with insight to improve the experience for their users. • Expand the breadth of data captured by the Firefox Profiler without compromising on performance. • Engage with the performance team efforts such as bug triage and strategy. • Engage with other Firefox engineers to help them learn how to use our tools efficiently, and develop projects to serve them better. • Promote and encourage the use of our performance tools within and beyond Mozilla by writing and talking about them. • Engage with our community and mentor volunteers contributing to the codebase. What you’ll bring: • 5+ years of experience in systems software engineering using C++. • 1+ year of experience in Rust. • Expertise in at least one of the following operating system APIs and familiarity with the others: Windows/Linux/macOS/Android. • Experience working on and debugging large multi-threaded applications and memory management. • Strong and respectful communication skills and ability to collaborate across engineering teams. • Familiarity with any of the following skills would be a plus: JavaScript, Java, Android development, Python. • Commitment to our values: • Welcoming differences • Being relationship-minded • Practicing responsible participation • Having grit What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/ADD, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D Req ID: R2941

Build high-quality user interfaces and experiences for Firefox, focusing on accessibility and usability. Collaborate with designers and engineers to solve complex problems and improve the web experience for users. | Candidates should have 4+ years of experience as a software engineer and 3+ years of experience with JavaScript, HTML, and CSS. A background in shipping high-quality software is essential, with additional experience in React, Redux, or TypeScript being a plus. | Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The Desktop Engineering team is looking for a Senior Frontend Engineer to work on New Tab features and capabilities in Firefox, greatly expanding the value and agency of our web browser for loyal and new users alike. Our team is geographically-distributed, and working in the open is the norm. We contribute to the code driving the Firefox browser on a number of desktop platforms - Windows, Linux, and macOS. What you’ll do: Build high quality user interfaces and experience for Firefox with accessibility and usability in mind Write code and tests, build prototypes, solve problems with no clear solution, collaborate with other designers and engineers to make the web a better place Learn about a wide variety of problems and solutions across a large, mature codebase Work with multi-functional teams, building relationships and nurturing collaboration to reach shared goals Help to level-up the skills of your fellow engineers through code reviews, giving talks, and/or writing documentation Promote and maintain high standards of code-quality, focusing on performance, testing, security, usability, accessibility and maintainability Work with driven, committed team members to bring the open web to people around the world Contribute to improving engineering practices and procedures What you’ll bring: 4+ years experience as a software engineer 3+ years working experience with JavaScript, HTML, and CSS A background in shipping high quality software Nice to Have Working experience with React, Redux or TypeScript Interest in and ability to work with a distributed team (requires good asynchronous written communication skills as well as good verbal communication skills) Willingness to provide and receive constructive feedback Contributions through asking questions and proposing new ideas A love of working with others collaboratively A keen interest in AI and bringing value of this tool to users in a privacy preserving and secure way. Commitment to our values: Welcoming differences Being relationship-minded Practicing responsible participation Having grit What you’ll get: Generous performance-based bonus plans to all eligible employees - we share in our success as one team Rich medical, dental, and vision coverage Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) Quarterly all-company wellness days where everyone takes a pause together Country specific holidays plus a day off for your birthday One-time home office stipend Annual professional development budget Quarterly well-being stipend Considerable paid parental leave Employee referral bonus program Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D #LI-REMOTE Req ID: R2958 Hiring Ranges: US Tier 1 Locations $137,000—$199,000 USD US Tier 2 Locations $126,000—$183,000 USD US Tier 3 Locations $116,000—$169,000 USD

Lead the development and execution of enterprise security policies and standards across the IT landscape. Manage a team of security engineers and collaborate with other domains to integrate security into operations and strategic initiatives. | The ideal candidate should have over 10 years of experience in enterprise security and a strong understanding of security and compliance best practices. Relevant industry certifications and hands-on experience with security tools are also required. | Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The role is part of the Security Function within the broader Mozilla Infrastructure team. The Security team supports Product, Enterprise and GRC functions across the organization aligned with the mission to build a safe & secure internet. You will lead a team of security engineers within the Enterprise Security (InfoSec) domain. Your primary focus will be on spearheading strategic and operational initiatives, particularly in Enterprise Application, Endpoint, Data and Infrastructure security with measurable outcomes to raise the security posture of the enterprise. You will also be part of decision making for internal technology choices and enterprise architecture, ensure clear actionable policy and craft domain-specific technology roadmaps. The ideal candidate will have profound technical thought leadership, people management and stakeholder collaboration skills to drive security outcomes. What you’ll do: Lead the development and execution of enterprise security policies, technology practices and standards across the IT landscape, focused in Application, Endpoint, Data and Infrastructure security Define and deliver on OKR’s mapped to measurable KPI’s that improve the enterprise security posture Lead enterprise security risk management including the identification, assessment and mitigation of risks inclusive of running the Security Incident Response Team. Bring visibility into application and infrastructure security health, drive mitigations as per SLO as well as reduce technical debts Collaborate with other InfoSec domains and IT to integrate security into operations and strategic initiatives Lead , partner and deliver on ISO compliance / GRC related gaps and remediations Manage a team of highly driven security engineers, establish team goals and metrics to enhance expertise Be a strong thought leader and clearly communicate and build support for your ideas Be a key advisor to the senior leadership on enterprise security risks and strategies Your Professional Profile 10+ years of progressive experience in developing and delivering an robust progressive enterprise security framework Strong understanding and deep knowledge of enterprise systems and services with security & compliance related best practices Relevant industry certifications (CISA, CISSP, CISM, CRISC, etc) Hands-on understanding of using various technology and tools (SEIM, Vulnerability mgmt, MDM/ EDR / DLP, IdP/IAM, BI Tools) Ability to develop security incident Root Cause Analysis (RCA) and remediation plans to resolve risk deficiencies working with respective stakeholder teams. Strong critical thinking skills with the ability to drive long term organizational impact A background that demonstrates a bias for action and the ability to navigate constraints in order to achieve business outcomes Ability to collaborate and influence a diverse group of stakeholders to address cross-functional challenges and lead change What you’ll get: Generous performance-based bonus plans to all eligible employees - we share in our success as one team Rich medical, dental, and vision coverage Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) Quarterly all-company wellness days where everyone takes a pause together Country specific holidays plus a day off for your birthday One-time home office stipend Annual professional development budget Quarterly well-being stipend Considerable paid parental leave Employee referral bonus program Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C #LI-DNI Req ID: R2954 Hiring Ranges: US Tier 1 Locations $216,000—$314,000 USD US Tier 2 Locations $199,000—$289,000 USD US Tier 3 Locations $184,000—$267,000 USD

Lead external communications and media strategies to amplify Mozilla’s mission and products, manage media relationships, coach executives, and drive strategic storytelling across channels. | 7+ years in communications or media relations, strong media relationships, excellent writing and storytelling skills, strategic mindset, ability to lead cross-functional projects and advise executives. | Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Mozilla is on a mission to build a better internet– one that’s open, accessible, and people first! We’re seeking a Senior Communications Manager who doesn’t just execute but thinks strategically and creatively to drive awareness, reach, and advocacy. This is a role for someone who thrives in ambiguity, identifies opportunities others overlook, and delivers communications that set Mozilla apart, all with limited oversight. As Senior Manager, Communications, you’ll lead the development and execution of external media strategies that support Mozilla’s mission and amplify its presence across sectors. You’ll work cross-functionally with teams, including Product, Brand, Legal, Policy, and Social/Content, to craft compelling, newsworthy narratives that resonate with both tech-savvy and general audiences. A key part of your success in this role will be your ability to tell stories that clearly set Mozilla apart from competitors, highlighting our distinct values, our open-source roots, and our people-first approach to technology. You’ll lead media engagement and manage key reporter relationships, but you’ll also think beyond press, to find creative ways to spark conversation, shape storytelling, and get people talking about Mozilla’s work and products in culture and the broader tech landscape. You’ll be a trusted advisor to senior executives when needed, preparing them for public engagements and playing a key role in product launches, thought leadership, and company positioning. You’ll lead sophisticated, cross-functional projects with minimal direction, navigating ambiguity and moving from strategy to execution with clarity. You'll also improve communications from project work to program-level strategy through establishing success metrics, coordinating budgets, and ensuring long-term impact. What You’ll Do: Lead external communications for Mozilla’s products and initiatives. Develop and execute comprehensive media strategies that drive awareness, differentiation, and business outcomes. Craft high-impact messaging, press materials, blog posts, and executive content — with a focus on clearly differentiating Mozilla from its competitors. Manage media relationships across tech, business, and consumer verticals. Serve as a key media contact — proactively pitching, responding to inquiries, and managing ongoing press relationships. Prepare and coach senior executives for media interviews, public speaking, and high-visibility opportunities. Lead complex, multi-stakeholder communications projects with limited oversight. Collaborate cross-functionally to ensure aligned and consistent storytelling across channels. Independently develop new, creative narratives and strategies that not only enhance campaigns but also anticipate emerging trends, tap into cultural conversations, and reinforce Mozilla’s unique position in the market. Shift from project to program-level thinking by defining success metrics, managing budgets, and using long-term measurement to continually improve communications impact. Make strategic recommendations on communications priorities to support broader marketing and business goals. Navigate sensitive issues with confidence and contribute to strategic crisis response when needed. What You Bring: 7+ years of experience in communications or media relations, ideally in tech or product PR. A proven ability to lead projects independently and make sound decisions with minimal guidance. Strong media relationships and a successful track record of placing impactful stories. Excellent writing skills, editorial judgment, and a knack for creative, compelling storytelling. Demonstrated experience developing narratives that set a brand apart from competitors. Proven ability to lead cross-functional initiatives and influence across teams. Strategic thinker capable of managing programs, budgets, and long-term initiatives. A proactive, strategic mindset with the ability to see the big picture, anticipate opportunities, and connect the dots between Mozilla’s work and the cultural, industry, and news landscape. Experience advising and supporting executives in high-stakes communications moments. A collaborative spirit and the ability to bring people together to produce innovative, high-impact work. Experience working with and managing agencies or external partners. What you’ll get: Generous performance-based bonus plans to all eligible employees - we share in our success as one team Rich medical, dental, and vision coverage Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) Quarterly all-company wellness days where everyone takes a pause together Country specific holidays plus a day off for your birthday One-time home office stipend Annual professional development budget Quarterly well-being stipend Considerable paid parental leave Employee referral bonus program Other benefits (life/AD&D, disability, EAP, etc. (varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C #LI-REMOTE Req ID: R2949 Hiring Ranges: US Tier 1 Locations $137,000—$199,000 USD US Tier 2 Locations $126,000—$183,000 USD US Tier 3 Locations $116,000—$169,000 USD

Lead complex cross-functional ad tech programs ensuring alignment with business goals, technical feasibility, and privacy compliance while managing risks and stakeholder communication. | 10+ years technical program management experience in ad delivery and ad tech, software engineering program management, strong interpersonal and communication skills, and experience influencing system design. | To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: We’re looking for a skilled and experienced Technical Program Manager to support our Advertising Product and Engineering team. In this role, you will lead the execution of complex, cross-functional programs that drive the development of advertising features, systems and data products. You will coordinate work across engineering, product, data science, and cross-company and external partners to deliver scalable, privacy-compliant solutions in areas like targeting, attribution, bidding, and measurement. As a TPM, you’ll play a key role in influencing system design, driving architectural alignment, and ensuring program goals are met on time. You'll manage multiple initiatives simultaneously, working with global and remote teams, and provide clear updates to stakeholders. Success in this role requires strong program leadership, risk management, and a deep understanding of how technical and business priorities intersect in advertising. What you’ll do: • Manage roadmaps for ad tech and data platform initiatives, ensuring alignment with business goals, technical feasibility, and compliance requirements. • Build and maintain strong relationships with internal stakeholders, and external partners to ensure smooth execution and alignment. • Manage communication of technical requirements, changes in project scope using structured verification and change control processes. • Report progress, escalate risks, and highlight key achievements to management and relevant partners as needed. • Drive architectural alignment and coordinate engineering teams across orgs to deliver scalable ad features such as targeting, attribution, and real-time bidding. • Ensure compliance with data governance policies and privacy regulations (e.g., GDPR, CCPA) throughout all advertising and data initiatives. • Manage system risks and dependencies, communicate timely among Eng managers, PMs and leaders and mitigate technical delivery risks. • Maintain comprehensive project documentation, ensuring traceability, transparency, and operational continuity. • Continuously refine delivery processes and optimize workflows across engineering, data science, and product management teams. What you’ll bring: • 10+ years of technical program management experience in ad delivery and the ad tech ecosystem. • Experience managing software engineering programs end to end • Excellent interpersonal skills to juggle many activities without losing sight of the highest-priority items • Ability to understand complex concepts and make reasoned decisions with sometimes imperfect data • Good communication skills, relationship-building, and negotiation skills • Ability to communicate and interact with leaders within the advertising organization and across the business • Experience collaborating with engineering and architecture teams to influence and contribute to the system design of key advertising components • Experience ensuring system design decisions balance business requirements, technical feasibility, performance, and long-term maintainability • Experience driving architectural reviews and support design of distributed, low-latency systems to handle real-time ad delivery What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C #DNI ReqID: R2790

Lead the design and architecture of security controls across Mozilla's applications and services. Conduct risk assessments and collaborate with teams to ensure the integrity and security of Mozilla's products. | Candidates should have over 10 years of experience in security consulting or architecture roles, with practical experience in various security technologies. Strong communication skills and a background in software development or engineering operations are also required. | Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this Team and Role Mozilla is looking for a staff security engineer to assist with the design and architecture of security controls and risk reduction activities across all Mozilla product, service and support departments. To achieve these you will need: experience assessing security risks, presenting security topics to technical and nontechnical teams. Ability to analyze software and system design to identify security vulnerabilities using knowledge of state of the art vulnerabilities and attack techniques. technical expertise and experience with designing and building tooling to scale and automate processes your influence and impact. outstanding interpersonal skills to partner with teams across the organization and support them in reducing their risk. Most importantly, you will assist the team responsible for ensuring the integrity of Mozilla’s enterprise and products and for keeping Mozilla’s users safe, within a company dedicated to building a more secure internet. What You’ll Do Lead enterprise security control design and architecture across Mozilla SaaS applications and enterprise security tooling Conduct risk assessments and security reviews for SaaS and custom-developed applications and services Collaborate with security leadership on security strategy and prioritization of security projects Coordinate with Security Incident Response Team on incident retrospectives and follow up on security remediation Security Strategy and Governance Develop and implement cybersecurity strategies, policies, and frameworks aligned with organizational goals and regulatory requirements. Conduct periodic corporate risk assessments and recommend measures to address identified vulnerabilities. Internal Consulting Act as a subject matter expert for internal teams, providing guidance on securing SaaS applications, infrastructure hardening, and data protection. Review and approve security controls in project designs and deployments. Regulatory Compliance Ensure compliance with Mozilla security standards, such as NIST, GDPR, and other relevant regulations. Support audits, certifications, and assessments. Technology Assessment Evaluate and recommend new security technologies, tools, and methodologies to strengthen the organization's cybersecurity posture. Collaborate with IT and business units to assess and integrate security solutions. Training and Awareness Assist in development or acquisition of training sessions for employees to enhance cybersecurity awareness across the organization. Provide mentorship to junior cybersecurity staff. Reporting and Communication Provide detailed reports and dashboards on the organization's security status to senior leadership. Communicate complex technical information to non-technical stakeholders effectively. What You’ll Bring 10+ years of demonstrated ability in a security consulting or architecture role Practical experience with the following technologies: Identity and Access Management Mobile Device / Application Management Data Loss Prevention Endpoint Detection and Response Practical experience securing SaaS applications such as but not limited to: Google Workspace, Box, Slack, Workday, Jira and Confluence) Experience securing cloud technologies such as Google Cloud, Amazon Web Services and Azure. Strong written and verbal skills; ability to work effectively with diverse company partners. Real-world experience in software development and/or engineering operations; B.S. in technology focused fields is helpful. Competencies Ownership and Accountability Autonomy High Level of Integrity Clear Communication Creative Problem Solver Passionate about Security What you’ll get: Generous performance-based bonus plans to all eligible employees - we share in our success as one team Rich medical, dental, and vision coverage Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) Quarterly all-company wellness days where everyone takes a pause together Country specific holidays plus a day off for your birthday One-time home office stipend Annual professional development budget Quarterly well-being stipend Considerable paid parental leave Employee referral bonus program Other benefits (life/AD&D, disability, EAP, etc. varies by country) About Mozilla When you work at Mozilla, you give yourself a chance to make a difference in the lives of web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the web as the platform and help create more opportunity and innovation for everyone online. We’re not a normal tech company. The things we create prioritize people and their privacy over profits. We exist to make the internet a healthier, happier place for everyone. Commitment to diversity, equity and inclusion Mozilla believes in the value of diverse creative practices and forms of knowledge, and knows diversity, equity and inclusion are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C #LI-REMOTE ReqID: R2766 Hiring Ranges: US Tier 1 Locations $163,000—$217,000 USD US Tier 2 Locations $150,000—$200,000 USD US Tier 3 Locations $138,000—$184,000 USD

Lead the design of AI-powered features for Firefox, guiding ideas from early sketches to live experiences. Collaborate with cross-functional teams to create user-friendly designs that prioritize privacy and accessibility. | Candidates should have 7+ years of product design experience, particularly with complex workflows and AI experiences. A strong portfolio showcasing user-centric design and familiarity with design systems is essential. | Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: As a Staff UX Product Designer with an AI focus, you’ll help define the future of browsing and shape the next generation of AI-powered features in Firefox. You’ll collaborate with product managers, engineers, researchers, and content designers to create elegant, scalable experiences rooted in Firefox’s values of privacy, simplicity, and performance. In this high-impact, cross-functional role, you’ll explore new ideas, bring design systems to life, and elevate product quality with refined, visually engaging, and thoughtful design. You’ll influence how millions of people interact with the web—balancing trusted UI patterns with bold, forward-thinking AI innovations. You’ll design at the forefront of AI technology, shaping how people and businesses benefit from powerful new tools while influencing the future of Firefox—the only major browser not backed by billionaires. Join our distributed, mission-driven team and help make the web better for everyone as we build meaningful new AI experiences. What You’ll Do: Lead the design of AI-powered features for Firefox on desktop, guiding ideas from early sketches to live experiences. Combine familiar interface patterns with inventive AI features so browsing feels fresh, fast, and easy to use. Work autonomously to identify problems and propose solutions that align with product strategy, user insights, and technical constraints. Use storyboards, wireframes, and prototypes to explore and refine new ways for people to interact with AI in the browser. Work side-by-side with product managers, engineers, researchers, and content designers to make design decisions that work for people and for the product. Design with privacy, accessibility, and trust at the core of every interaction. Help grow and adapt Firefox’s design systems to keep the desktop experience consistent and cohesive. What You’ll Bring: 7+ years of product design experience, ideally working with complex workflows or multi-step processes. Experience designing AI experiences for consumer products with large user bases. Background in ethical AI practices and privacy‑first design. Familiarity with AI-powered tools or excitement to help shape how people use AI in everyday work. Knowledge of design systems and tools like Jira. Passion for open‑source technology. A strong, user‑centric portfolio with polished UI craft and innovative interaction paradigms. Proven track record of delivering end‑to‑end design in ambiguous, large‑scale projects. Curiosity about AI technologies and hands-on experience experimenting or prototyping with them. Strong grasp of visual and interaction design principles: layout, typography, motion, accessibility, and brand expression. Proficiency with Figma and other modern prototyping tools. Ability to communicate clearly with cross‑functional partners and influence without authority. Collaborative, flexible, low‑ego approach; thrives in fast‑paced, distributed teams. Talent for turning complicated workflows into clear, intuitive experiences. What you’ll get: Generous performance-based bonus plans to all eligible employees - we share in our success as one team Rich medical, dental, and vision coverage Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) Quarterly all-company wellness days where everyone takes a pause together Country specific holidays plus a day off for your birthday One-time home office stipend Annual professional development budget Quarterly well-being stipend Considerable paid parental leave Employee referral bonus program Other benefits (life/AD&D, disability, EAP, etc. varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C #LI-REMOTE Req ID: R2911 Hiring Ranges: US Tier 1 Locations $137,000—$199,000 USD US Tier 2 Locations $126,000—$183,000 USD US Tier 3 Locations $116,000—$169,000 USD