Jobs at Mozilla

Build and maintain Mozilla’s Internal Developer Infrastructure Platform, including CI/CD, observability, Kubernetes optimization, environment bootstrapping, and cloud cost optimization. Support development teams, guide technical decisions, create agentic workflows, improve developer productivity, develop platform features, write technical proposals, and resolve urgent ambiguous tasks. The role requires technical leadership, cross-functional collaboration, cloud-native expertise, and strong communication.

Leads Mozilla’s European policy communications strategy, translating complex issues involving privacy, AI, competition, open source, and internet regulation into compelling public narratives. Builds relationships with journalists, policymakers, advocates, and influencers; develops press materials, policy statements, speeches, and executive briefings; prepares spokespeople for high-stakes engagements; advises senior leaders; and manages proactive, reactive, and crisis communications across regions.

Leads Mozilla’s European policy communications strategy, shaping narratives on privacy, AI, open source, competition, security, and internet regulation. Builds relationships with journalists, policymakers, advocates, and influencers; develops thought leadership, press materials, speeches, submissions, and executive briefings; prepares spokespeople; advises senior leaders; supports product launches and advocacy; and manages fast-moving or crisis policy communications across global teams.

Lead and mature Mozilla's ISMS and compliance programs (ISO 27001 and SOC 2 Type 2). Manage SoA, risk treatment, audits, policy lifecycle, gap remediation, internal audits, and cross-functional control ownership while advising security leadership on certification readiness and compliance strategy.

Maintain and mature Mozilla's ISMS and support ISO 27001 and SOC 2 Type 2 audit programs. Author system descriptions and policies, manage risk treatment plans, track remediation, support internal audits, and partner with Engineering, Legal, Privacy, and Product to drive control ownership and audit readiness.

Maintain and mature Mozilla's ISMS, support ISO 27001 and SOC 2 Type 2 audits, author compliance narratives, track remediation, lead policy program, scale compliance for products, and partner with cross-functional teams to drive control ownership and audit readiness.

Lead and mature Mozilla's ISMS and compliance programs (ISO 27001, SOC 2), support audit execution and evidence collection, manage policy lifecycle, track remediation and internal audits, and partner with cross-functional teams to translate compliance requirements into practical controls and processes.

Maintain and mature Mozilla's ISMS and support ISO 27001 and SOC 2 Type 2 audits, including scope, evidence preparation, auditor interviews, and remediation tracking. Lead policy creation and review cycles, support internal audits, scale compliance for new products/business units, and partner with engineering, legal, privacy, and product teams to drive control ownership and translate compliance into practical workflows.

Develop performant, standards-compliant Firefox layout and rendering code focused on Asynchronous Pan and Zoom. Responsibilities include designing algorithms and interaction techniques, debugging and optimizing multithreaded code, reviewing contributions, testing bugs, and collaborating on long-term platform development across Android, Windows, Linux, and macOS.

Develop and maintain high-performance, standards-compliant Firefox layout and rendering functionality, with a focus on Asynchronous Pan and Zoom. Responsibilities include implementing algorithms and user interaction techniques, debugging and optimizing multithreaded code, reviewing code, testing and triaging bugs, and collaborating on long-term platform development across Android, Windows, Linux, and macOS.

Develop performant, standards-compliant Firefox layout and Asynchronous Pan and Zoom features across multiple platforms. Responsibilities include writing and optimizing multithreaded C, C++, or Rust code; debugging rendering and interaction issues; developing layout, graphics, algorithms, and tools; reviewing code; testing and triaging bugs; and contributing to long-term open-source projects.

Design, build, test, and ship Firefox security and hardening features for enterprise users. Improve privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive web APIs across operating systems. Investigate security issues, implement durable fixes, and improve browser reliability, performance, memory usage, and correctness in a complex multithreaded environment.

Design, build, test, and ship Firefox security and hardening features for enterprise users. Improve security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive web APIs. Investigate security issues, deliver maintainable fixes, and resolve reliability, performance, memory, and correctness problems in complex multithreaded native applications.

Design, implement, test, and ship Firefox security and hardening features for enterprise users. Improve security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive web APIs. Investigate security issues, resolve root causes, and improve browser reliability, performance, memory usage, and correctness in a complex multithreaded codebase.

Design, implement, test, and ship Firefox security and hardening features for enterprise users. Improve browser security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive APIs. Investigate security issues, resolve root causes, and improve reliability, performance, memory usage, and correctness in a complex multithreaded codebase. Collaborate with distributed teams across a large, multi-language project.

Design, implement, test, and ship Firefox security and hardening features for enterprise users. Improve browser security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive APIs. Investigate security issues, deliver maintainable fixes, and resolve reliability, correctness, performance, memory, and multithreading problems in complex cross-platform native applications.

Design, implement, test, and ship Firefox security and hardening features for enterprise users. Improve browser security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive web APIs. Investigate security issues, deliver maintainable fixes, and resolve stability, correctness, performance, memory, and multithreading challenges in a complex native codebase.

Develop and maintain Firefox installation, update, and operating-system integration features for Windows and macOS. Collaborate with distributed teammates, participate in code reviews, resolve platform-specific bugs, and improve the browser experience. This early-career role involves systems-level programming, implementation with guidance from senior engineers, clear communication, and ongoing technical growth.

Design, implement, test, and ship Firefox security and hardening features for enterprise users. Improve browser security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive web APIs. Investigate security issues, deliver maintainable fixes, and resolve stability, correctness, performance, memory, and multithreading challenges in a complex cross-platform codebase.

Design, implement, test, and ship Firefox security and hardening features for enterprise users. Improve browser security architecture across operating systems, including privilege isolation, trust boundaries, cryptographic protocols, WebPKI, and security-sensitive APIs. Investigate security issues, resolve root causes, and improve reliability, performance, memory usage, and correctness in a complex multithreaded codebase.