Censys

Build and maintain scalable distributed services and data pipelines for threat intelligence. | 5+ years in distributed systems software engineering with Go and cloud experience. | 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 Distributed Systems Engineer on our Internet Map Connections team to build highly-available and scalable, data-driven services that provide value directly to customers and across our organization. Censys operates distributed infrastructure for Internet-wide scanning, bulk DNS resolution, and X.509 certificate ingestion: your job will be to go below the surface of our data, and help us find and attribute ownership to assets and find how assets on the Internet relate to one another. At Censys, we believe in working iteratively, but we’re always thinking about the big picture. We’re building a platform that enables fast development of future products, and integration with new data collection methods. You'd be great for this position if you're someone who considers not just initial development, but ongoing maintenance and monitoring. You consider delivery and developer experience, and everything you do can be built upon in the future by others. 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: 5+ 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. 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. 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 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. #LI-DNI 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. Identity Verification As part of our hiring process, all candidates who receive an offer of employment will be asked to complete an identity verification through CLEAR. 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 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.