Senior Software Engineer, Firefox Security

Description: Design, build, and implement security features for enterprise users in Firefox. Advance Firefox’s security architecture across multiple operating systems and improve core security mechanisms. Contribute to security initiatives by investigating issues and delivering fixes. Improve browser reliability and performance in a multithreaded environment. Requirements: 3+ years of systems programming experience with strong proficiency in C and/or C++ and security fundamentals. Experience diagnosing issues in multithreaded, cross-platform applications. Familiarity with web technologies (HTML, CSS, JavaScript) and interest in Rust. Effective collaboration and communication skills with distributed teams. Benefits: Performance-based bonus plans for eligible employees. Generous retirement contributions with immediate vesting. Quarterly wellness days and country-specific holidays plus a birthday day off. One-time home office stipend and annual professional development budget. Considerable paid parental leave and employee referral bonus program.