Censys

Lead frontend development, collaborate with design/product teams, and mentor engineers on best practices. | 5+ years experience with React and TypeScript, strong testing and accessibility skills, and ability to lead large frontend projects. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States or Canada. Role Summary We're hiring a Senior Engineer I to own significant portions of the frontend of the Censys Platform on the Core Services team. You'll be driving epic-scale work across account and integration management, user settings and controls, as well as the new product surfaces that bring Censys intelligence to life for analysts and security professionals worldwide. Working in close partnership with Design and Product to set direction, you’ll make architectural decisions, and ship high-quality experiences that enterprise customers depend on daily. Our stack is Remix and React with a rich TypeScript ecosystem, and we hold a high bar for testing discipline, accessibility, and long-term maintainability. What You'll Do Drive large frontend projects for enterprise account management, third party integrations, and the larger Censys Platform. Surface new data types and product capabilities through well-architected, accessible UI Partner closely with Design as a peer, translating their intent faithfully, while working to maintain quality and performance. Work with Product to clarify requirements, negotiate scope, and keep epics moving forward Provide an example of frontend quality for the team: testing standards, accessibility requirements, and component architecture decisions Mentor engineers on frontend best practices and help shape how the team approaches frontend work at scale What You'll Bring 5+ years of software engineering experience with strong depth in React and TypeScript Proven ability to drive epic-level frontend work end-to-end Strong testing discipline: unit, integration, and end-to-end coverage Solid accessibility fundamentals: WCAG standards, semantic HTML, keyboard navigation, and screen reader compatibility System-level thinking for frontend: component architecture, state management, data-fetching patterns, and performance tradeoffs Collaborative approach to working with Design and Product on future projects Strong opinions loosely held What Sets You Apart Experience building or contributing to a shared component library or design system Familiarity with backend APIs — you can read service contracts, have an informed conversation with backend engineers, and understand what's feasible Experience with Remix or other server-rendered React frameworks Security domain experience or genuine interest in the security intelligence space Data visualization or complex table/grid UI work at scale For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $174,000 USD - $206,000 USD, plus bonus eligibility and equity. For all other locations, the expected salary range for this position is $151,000 USD - $191,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys’s compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. #LI-Remote California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Lead large frontend projects, collaborate with design and product teams, ensure high-quality, accessible, and maintainable UI for enterprise customers. | 5+ years frontend experience with React and TypeScript, strong testing discipline, accessibility knowledge, and ability to drive epic-level frontend work end-to-end. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States or Canada. Role Summary We're hiring a Senior Engineer I to own significant portions of the frontend of the Censys Platform on the Core Services team. You'll be driving epic-scale work across account and integration management, user settings and controls, as well as the new product surfaces that bring Censys intelligence to life for analysts and security professionals worldwide. Working in close partnership with Design and Product to set direction, you’ll make architectural decisions, and ship high-quality experiences that enterprise customers depend on daily. Our stack is Remix and React with a rich TypeScript ecosystem, and we hold a high bar for testing discipline, accessibility, and long-term maintainability. What You'll Do • Drive large frontend projects for enterprise account management, third party integrations, and the larger Censys Platform. • Surface new data types and product capabilities through well-architected, accessible UI • Partner closely with Design as a peer, translating their intent faithfully, while working to maintain quality and performance. • Work with Product to clarify requirements, negotiate scope, and keep epics moving forward • Provide an example of frontend quality for the team: testing standards, accessibility requirements, and component architecture decisions • Mentor engineers on frontend best practices and help shape how the team approaches frontend work at scale What You'll Bring • 5+ years of software engineering experience with strong depth in React and TypeScript • Proven ability to drive epic-level frontend work end-to-end • Strong testing discipline: unit, integration, and end-to-end coverage • Solid accessibility fundamentals: WCAG standards, semantic HTML, keyboard navigation, and screen reader compatibility • System-level thinking for frontend: component architecture, state management, data-fetching patterns, and performance tradeoffs • Collaborative approach to working with Design and Product on future projects • Strong opinions loosely held What Sets You Apart • Experience building or contributing to a shared component library or design system • Familiarity with backend APIs — you can read service contracts, have an informed conversation with backend engineers, and understand what's feasible • Experience with Remix or other server-rendered React frameworks • Security domain experience or genuine interest in the security intelligence space • Data visualization or complex table/grid UI work at scale For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $174,000 USD - $206,000 USD, plus bonus eligibility and equity. For all other locations, the expected salary range for this position is $151,000 USD - $191,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys’s compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. #LI-Remote California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Develop backend services and APIs for threat hunting and SOC tools within a SaaS platform. | 4+ years software engineering experience, preferably with Go, cloud infrastructure knowledge, and strong collaboration skills. | Company Background Censys' mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry's most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States or Canada. Role Summary: We're looking to hire a Software Engineer with 4+ years of experience to join our team. In this capacity, you will contribute to the development of specialized tools for threat hunters, SOC analysts, and incident response professionals within the Censys Platform. Your responsibilities will involve advancing our Adversary Investigation module by architecting resilient APIs and scalable microservices for our SaaS infrastructure. By collaborating with engineering and product partners, you will transform intricate needs into sustainable software that delivers vital security intelligence. Your work will empower users to navigate the global Internet, identify emerging threats, and strengthen their organizational defenses. What You'll Do: • Design, build, and enhance backend services that power core functionality across the Censys Platform • Partner with Product, Design, and Frontend Engineers to deliver features that solve real customer problems • Integrate with internal and external APIs to support rich, data-driven experiences • Own the full development lifecycle by automating build, test, deployment, and monitoring workflows • Contribute to an iterative development process that emphasizes continuous improvement and rapid feedback • Help evolve the Censys public API as platform capabilities grow. • Own small-to-medium features from technical design through launch, with increasing independence; participate in design discussions with guidance from senior engineers. • Share on-call responsibilities for your areas and handle straightforward incidents with team support as needed. What You'll Bring: • Ideally, Experience writing backend services in Go (Golang) or the willingness to do so if you haven't worked with Go. • Foundational understanding of distributed systems and common operational challenges. • General knowledge of database design and typical access patterns. • Hands-on experience with cloud infrastructure (e.g., AWS or Google Cloud Platform). • Strong collaboration, communication, and analytical troubleshooting skills. • A track record of delivering well-defined work at high quality, knowing when to ask for clarification or help, and learning quickly from mistakes. • Open to using AI to amplify their skills and strengthen their work - demonstrating curiosity, a willingness to learn, and sound judgment in applying AI responsibly to improve efficiency and impact. • Experience building services on Google Cloud Platform. For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $143,000 USD - $177,000 USD, plus bonus eligibility and equity. For all other US locations, the expected salary range for this position is $125,000 USD - $165,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys's compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team's global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. #LI-Remote California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Architect and develop scalable microservices and APIs for threat hunting tools with cross-functional collaboration. | 5+ years building distributed web applications, 2+ years Go experience, cloud and Docker proficiency, strong communication skills. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This is a fully remote position within the United States or Canada. Role Summary: We’re looking to hire a Senior Backend Software Engineer II to join our team. In this capacity, you will contribute to the development of specialized tools for threat hunters, SOC analysts, and incident response professionals within the Censys Platform. Your responsibilities will involve advancing our Adversary Investigation module by architecting resilient APIs and scalable microservices for our SaaS infrastructure. By collaborating with engineering and product partners, you will transform intricate needs into sustainable software that delivers vital security intelligence. Your work will empower users to navigate the global Internet, identify emerging threats, and strengthen their organizational defenses. What You’ll Do: Architect and refine robust backend services to drive the capabilities of the Adversary Investigation module Collaborate cross-functionally with Product, Design, and Frontend teams to create high-impact solutions for our customers Maintain end-to-end ownership of the development cycle, from automating builds and testing to deployment and ongoing monitoring Facilitate data-intensive user experiences by integrating both internal systems and external APIs Engage in a fast-paced, iterative environment focused on technical excellence and proactive feedback loops What You’ll Bring: 5+ years of professional experience building distributed web applications and APIs Experience with building microservices in GO (2+ years) Experience with at least one cloud provider, like GCP, AWS, or Azure Familiarity with Docker and interest in improving our CI/CD deployment process Desire to improve test coverage and increase code maintainability The ability to thoughtfully participate in technical discussions and drive towards data-driven decisions amidst ambiguity and competing priorities. Strong communication and documentation skills. Explaining complex technical concepts to other engineers, designers, salespeople, and content marketers is no problem for you. What Sets You Apart: Familiarity with a gRPC or REST Experience with microservice-based designs with GCP PubSub, Kafka or other Experience with different databases, like: Redis, BigTable, BigQuery, Postgres Experience building, deploying, and maintaining containerized services in a Kubernetes Familiarity with other web technologies such as TypeScript, JavaScript, and proficiency with React is a plus You understand the value of building maintainable software. Some of your first tasks when building a new service are ensuring test coverage enforced by CI, adding linters, and adding code complexity checks. You enjoy a good abstraction, and promote established design patterns, but also know when to think outside the box. For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $143,000 USD - $177,000 USD, plus bonus eligibility and equity. For all other US locations, the expected salary range for this position is $125,000 USD - $165,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys’s compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Design and build scalable backend microservices and robust APIs for a SaaS platform, collaborating cross-functionally and managing deployment and monitoring. | Proficiency in Go and experience with cloud infrastructure like AWS or GCP, plus foundational knowledge of distributed systems and database design. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States or Canada. Role Summary: We’re hiring a Software Engineer II (backend) to help build and evolve our next-generation Censys Platform. In this role, you’ll develop scalable microservices and design robust APIs that power our SaaS product. You’ll work closely with product and engineering teams to translate complex requirements into well-architected, maintainable software that powers critical security insights. Your contributions will help users explore and understand the global Internet, enabling them to uncover threats and better protect their organizations. What You’ll Do: Design, build, and enhance backend services that power core functionality across the Censys Platform Partner with Product, Design, and Frontend Engineers to deliver features that solve real customer problems Integrate with internal and external APIs to support rich, data-driven experiences Own the full development lifecycle by automating build, test, deployment, and monitoring workflows Contribute to an iterative development process that emphasizes continuous improvement and rapid feedback Help evolve the Censys public API as platform capabilities grow. Own small-to-medium features from technical design through launch, with increasing independence; participate in design discussions with guidance from senior engineers. Share on-call responsibilities for your areas and handle straightforward incidents with team support as needed. What You’ll Bring: Experience writing backend services in Go (Golang). Foundational understanding of distributed systems and common operational challenges. General knowledge of database design and typical access patterns. Hands-on experience with cloud infrastructure (e.g., AWS or GCP). Strong collaboration, communication, and analytical troubleshooting skills. A track record of delivering well-defined work at high quality, knowing when to ask for clarification or help, and learning quickly from mistakes. Bonus Points: Experience building services on GCP. For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $143,000 USD - $177,000 USD, plus bonus eligibility and equity. For all other US locations, the expected salary range for this position is $125,000 USD - $165,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys’s compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Build and maintain critical backend infrastructure and evolve public APIs while collaborating with stakeholders. | Experience with Go backend services, distributed systems, database design, and cloud infrastructure like AWS or GCP. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States or Canada. Role Summary: We’re hiring a backend Software Engineer II to join our Core Services team. In this role, you will be responsible for building and maintaining the critical infrastructure behind authentication, authorization, analytics, and user/account management across our platform. You will contribute to secure, scalable systems that power core business capabilities by turning clear requirements into high-quality software, collaborating with product and engineering stakeholders as you deepen expertise in our stack and domain. What You’ll Do: Implement and extend services that deliver new core platform functionality. Support authentication, authorization, and analytics capabilities alongside the team. Build, test, deploy, and monitor a distributed set of services. Partner with product, design, and other engineering teams to ship features end-to-end. Help evolve the Censys public API as platform capabilities grow. Improve developer experience for internal teams and external API consumers. Own small-to-medium features from technical design through launch, with increasing independence; participate in design discussions with guidance from senior engineers. Share on-call responsibilities for your areas and handle straightforward incidents with team support as needed. What You’ll Bring: Experience writing backend services in Go (Golang). Foundational understanding of distributed systems and common operational challenges. General knowledge of database design and typical access patterns. Hands-on experience with cloud infrastructure (e.g., AWS or GCP). Strong collaboration, communication, and analytical troubleshooting skills. A track record of delivering well-defined work at high quality, knowing when to ask for clarification or help, and learning quickly from mistakes. Bonus Points: Experience building services on GCP. Experience with Kubernetes and Docker. Familiarity with SSO, SAML, and/or OIDC. For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $143,000 USD - $177,000 USD, plus bonus eligibility and equity. For all other US locations, the expected salary range for this position is $125,000 USD - $165,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys’s compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Develop scalable backend microservices and APIs for a SaaS platform. | Experience with backend services, distributed systems, cloud infrastructure, and strong collaboration skills. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States or Canada. Role Summary: We’re hiring a Software Engineer II (backend) to help build and evolve our next-generation Censys Platform. In this role, you’ll develop scalable microservices and design robust APIs that power our SaaS product. You’ll work closely with product and engineering teams to translate complex requirements into well-architected, maintainable software that powers critical security insights. Your contributions will help users explore and understand the global Internet, enabling them to uncover threats and better protect their organizations. What You’ll Do: • Design, build, and enhance backend services that power core functionality across the Censys Platform • Partner with Product, Design, and Frontend Engineers to deliver features that solve real customer problems • Integrate with internal and external APIs to support rich, data-driven experiences • Own the full development lifecycle by automating build, test, deployment, and monitoring workflows • Contribute to an iterative development process that emphasizes continuous improvement and rapid feedback • Help evolve the Censys public API as platform capabilities grow. • Own small-to-medium features from technical design through launch, with increasing independence; participate in design discussions with guidance from senior engineers. • Share on-call responsibilities for your areas and handle straightforward incidents with team support as needed. What You’ll Bring: • Experience writing backend services in Go (Golang). • Foundational understanding of distributed systems and common operational challenges. • General knowledge of database design and typical access patterns. • Hands-on experience with cloud infrastructure (e.g., AWS or GCP). • Strong collaboration, communication, and analytical troubleshooting skills. • A track record of delivering well-defined work at high quality, knowing when to ask for clarification or help, and learning quickly from mistakes. Bonus Points: • Experience building services on GCP. For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $143,000 USD - $177,000 USD, plus bonus eligibility and equity. For all other US locations, the expected salary range for this position is $125,000 USD - $165,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys’s compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Design, build, and own backend APIs and real-time services integrating multiple data sources for Exposure Management products. | 5+ years software engineering experience, 3+ years Golang, strong distributed systems fundamentals, excellent communication and documentation skills. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States or Canada. Role Summary: Censys is seeking a Senior Backend Engineer to join our Exposure Management team. Our Exposure Management solution is a growth product for Censys and depends on a world-class backend architecture to deliver real-time, high-fidelity visibility to our customers. We’re looking for an engineer who can design, build, and extend large-scale, real-time backend services that leverage Censys’ massive datasets to power internal product APIs and external customer-facing applications. This role requires someone who is comfortable owning backend services end-to-end, integrating data from multiple internal systems, and operating in production environments where reliability, observability, and correctness matter. As with all roles at Censys, we expect a strong customer focus, a collaborative mindset, and a desire to continuously learn and improve both our systems and our team. What You’ll Do: • Design, build, and own backend APIs and gRPC services that integrate data from multiple internal teams and systems in a clean, well-architected manner • Build and evolve real-time and near–real-time backend services and data pipelines that power Exposure Management and Attack Surface Management products • Leverage AI and LLMs to enhance automation, accelerate development workflows, and improve customer-facing intelligence • Partner closely with Product and other Engineering teams to prioritize features, influence the Exposure Management roadmap, and deliver customer value on tight timelines • Provide technical leadership through design reviews, mentorship, and setting a high bar for code quality, performance, and operational reliability • Design and maintain automated CI/CD workflows, including testing, monitoring, alerting, and deployment, to ensure services are production-ready and observable What You’ll Bring: • A positive attitude biased towards action and iterative problem solving, learning as we grow every step of the way. • 5+ years of experience in software engineering. • 3+ years of experience with Golang. • Experience designing and consuming REST and gRPC APIs in service-oriented or microservice architectures • Strong distributed systems fundamentals, including experience building horizontally scalable, fault-tolerant systems • The ability to thoughtfully participate in technical discussions and drive towards data-driven decisions amidst ambiguity and competing priorities. • Strong communication and documentation skills. Explaining complex technical concepts to other engineers, designers, salespeople, and content marketers is no problem for you. What Sets You Apart: • Strong interest in harnessing AI and LLM tools as a force multiplier - using it to code smarter, iterate faster boosting productivity and enhancing product capabilities • You have experience with microservice-based designs with GCP PubSub, etc, and know their tradeoffs. • Experience building, deploying, and maintaining containerized services in a Kubernetes based environment. • You understand the value of building maintainable software. Some of your first tasks when building a new service are ensuring test coverage enforced by CI, adding linters, and adding code complexity checks. You enjoy a good abstraction, and promote established design patterns, but also know when to think outside the box. • A deep understanding of how the Internet works. For example, WHOIS, Certificate Subject Alternative Names (SANs), and DNS record types should not be foreign to you. For high cost of living areas (San Francisco Bay, New York City, and Seattle), the expected salary range for this position is $157,000 USD - $188,000, plus bonus eligibility and equity. For other US locations, the expected salary range for this position is $137,000 USD - $175,000 USD, plus bonus eligibility and equity. Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. The listed range is a guideline, and the range for this role may be modified. For roles that are available to be filled remotely, the pay range is localized according to employee work location by a factor of between 83% and 100% of range. Please discuss your specific work location with your recruiter for more information. Censys offers a competitive benefits package to employees, including equity, health, dental & vision coverage, retirement with company contribution, parental leave, mental health & wellness benefits, flexible PTO, and a professional development stipend. Censys also offers sales incentive pay for most sales roles and an annual bonus plan for eligible non-sales roles. Censys’s compensation and benefits are subject to change and may be modified in the future. Please see our careers page for more details. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to your recruiter. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates to keep their cameras on during video interviews. Additionally, if hired, we would love to bring you to our HQ in Ann Arbor for in-person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with our Censys Privacy Policy. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Build and maintain large-scale streaming services and APIs, design and develop backend infrastructure, collaborate with teams. | 5+ years in software engineering with distributed systems experience and proficiency in Go and cloud technologies. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States. Role Summary: We’re looking to hire a Senior Software Engineer (Backend, Distributed Systems) to build scalable services and APIs that process vast amounts of data and make them highly available, providing direct value to customers and other parts of our organization. Censys operates distributed infrastructure for Internet-wide scanning and you will help us continue our mission to build the highest quality datasets and APIs that lead to insights about the Internet at large. At Censys, we believe in working iteratively, but we’re always thinking about the big picture. We’re expanding our data platform to enable future products and features to make the Internet an explainable map, providing additional, rich context, and showing complex relationships. We’re looking for someone with an ownership mindset, is curious, can provide mentorship, and has a collaborative spirit for our mission. What You’ll Do: Build large scale, real-time streaming services and applications which leverage our massive datasets to power internal APIs and external applications. Own the design and development phases of backend services and APIs that power the data platform that is our Internet Map. Own planning activities to ensure we’re building the right things, by collaborating with engineering and product teams. Leverage your experience of architecture and design to build various parts of the system, including components like: messaging queues, databases, ingestion pipelines, caching layers, and services that run in the cloud or on-prem. Skills You Have: 5+ years of software engineering experience writing distributed systems (i.e. data ingestion pipelines, databases, services) Experience with object-oriented programming - we use Go Experience with at least one cloud provider, like: AWS, Azure, or GCP Experience with message queue technologies, like: AWS Kinesis , Google Pub/Sub, Kafka, or other Proficient with databases, like: BigTable, Cloud Spanner, HBase, Cassandra, or other Proficient at building scalable, distributed systems Know when and where to utilize AI Ability to write understandable, testable code with an eye towards maintainability Possess strong communication skills and can explain technical concepts to other engineers and product managers. Things that make you stand out: Familiarity with gRPC or REST. Familiarity with data serialization technologies, like: Protobuf, MessagePack, etc. Experience building, deploying, and maintaining containerized services in a Kubernetes. Knowledge of how DNS works and is used in practice An understanding of how the Internet works; how machines and services communicate using defined protocols / standards. For high cost of living areas (San Francisco Bay Area, Seattle, and the New York City metro), the expected salary range for this position is $157,000 - $187,000 + bonus eligibility and equity. For all other locations, the expected salary range for this position is $137,000 - $175,000 + bonus eligibility and equity. In addition to our great compensation package, our benefits are effective on day one and include but are not limited to: 401k match, health, vision, dental, and more! Please see our careers page for more details. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US or Canada. We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal opportunity employer. California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Build and maintain scalable distributed services and data pipelines supporting APIs and applications. | 3+ years software engineering with distributed systems focus, Go experience, cloud and database knowledge, strong communication. | Company Background Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide. Location: This position is remote within the United States. Role Summary: We’re looking to hire a Software Engineer to build scalable services, APIs, frameworks, and internal tooling that process large amounts of data and make them highly available, providing direct value to customers and other parts of our organization. Censys operates distributed infrastructure for Internet-wide scanning, and you will help us continue our mission to build high-quality datasets, APIs, and engineering foundations that turn research and detection ideas into production-ready capabilities. At Censys, we believe in working iteratively while keeping the big picture in mind. We’re expanding our data platform to enable future products and features that make the Internet more explainable by adding richer context and showing complex relationships. We’re looking for someone who is curious, collaborative, and excited to grow while contributing to our mission. What You’ll Do: Help build large scale, real-time services and applications which leverage our massive datasets to power internal APIs and external applications. Build tooling, libraries, frameworks, and services that support security, research and data platform initiatives. Productionize prototypes into reliable internal tools, services, or platform capabilities. Participate in planning and technical discussions with engineering and product teams to help build the right solutions. Develop and maintain systems such as data pipelines, messaging systems, databases, caching layers, and services that run in the cloud or on-prem. Work with Machine Learning Engineers and Security Researchers to realize solutions that affect security outcomes. Skills You Have: 3+ years of software engineering experience building distributed systems (i.e. data ingestion pipelines, databases, services). Experience with object-oriented programming - we use Go. Experience with at least one cloud provider, like: AWS, Azure, or GCP. Experience or familiarity with message queue technologies, like: AWS Kinesis , Google Pub/Sub, Kafka, or other. Experience working with databases, like: BigTable, Cloud Spanner, HBase, Cassandra, or other. Understanding of core distributed systems concepts such as scalability, fault tolerance, and reliability. Familiarity with using AI. Ability to write understandable, testable code with an eye towards maintainability. Strong communication skills and the ability to work effectively with other engineers and product managers. Things that make you stand out: Familiarity with gRPC or REST. Familiarity with data serialization technologies, like: Protobuf, MessagePack, etc. Experience building, deploying, or maintaining containerized services in Kubernetes. An understanding of how the Internet works; how machines and services communicate using defined protocols / standards. Any Security Domain knowledge is a bonus For candidates located in high cost of living locations (Seattle, San Francisco Bay Area, or New York City Metro), the salary range for this position is $137,000 - $169,000 + bonus eligibility and equity. For candidates located in any other US location, the salary range for this position is $120,000 - $157,000 + bonus eligibility and equity. In addition to our great compensation package, our benefits are effective on day one and include but are not limited to: 401k match, health, vision, dental, and more! Please see our careers page for more details. Our roots are in Ann Arbor, Michigan and our innovation is fueled by the team’s global perspectives. For this role, we are open to remote employees across the continental US and Canada. Note to external recruiters/agencies: We are not currently engaging with third-party agencies for this role and will not accept unsolicited outreach. We kindly ask that you do not submit resumes or candidate profiles to our team. California Privacy Rights Notice Pursuant to the California Consumer Privacy Act (CCPA), we are providing you with notice that we collect personal information from job applicants for business purposes, including evaluating your candidacy for employment, conducting interviews, and, if applicable, completing the hiring process. The categories of information we may collect include identifiers (such as name and contact information), professional or employment-related information (such as work history, education, and references), and other information you provide in your application. We do not sell or share your personal information. For more information on how we use and protect your personal information, and your rights under the CCPA, please refer to our Privacy Policy.

Design and develop backend services and APIs for large scale distributed data platform systems. | 5+ years in distributed systems engineering with cloud and message queue experience, strong OOP skills, preferably in Go. | Job Description: • Build large scale, real-time streaming services and applications which leverage our massive datasets to power internal APIs and external applications. • Own the design and development phases of backend services and APIs that power the data platform that is our Internet Map. • Own planning activities to ensure we’re building the right things, by collaborating with engineering and product teams. • Leverage your experience of architecture and design to build various parts of the system, including components like: messaging queues, databases, ingestion pipelines, caching layers, and services that run in the cloud or on-prem. Requirements: • 5+ years of software engineering experience writing distributed systems (i.e. data ingestion pipelines, databases, services) • Experience with object-oriented programming - we use Go • Experience with at least one cloud provider, like: AWS, Azure, or GCP • Experience with message queue technologies, like: AWS Kinesis , Google Pub/Sub, Kafka, or other • Proficient with databases, like: BigTable, Cloud Spanner, HBase, Cassandra, or other • Proficient at building scalable, distributed systems • Know when and where to utilize AI • Ability to write understandable, testable code with an eye towards maintainability • Possess strong communication skills and can explain technical concepts to other engineers and product managers. Benefits: • 401k match • health • vision • dental • more! Please see our careers page for more details.