Senior Software Engineer
Location: Remote
Compensation: To Be Discussed
Reviewed: Thu, Jun 25, 2026
This job expires in: 30 days
Job Summary
Focused on advancing Firefox's security architecture, the remote Senior Software Engineer will contribute to security systems, design web platform features, and improve browser performance while collaborating with cross-functional teams.
Key responsibilities
- Advance Firefox's security architecture and cryptography stack by improving core security systems and implementing security features
- Design and implement web platform security features in collaboration with teammates and the broader web community
- Investigate and resolve issues impacting browser reliability, performance, and resource efficiency
Required qualifications
- Proficiency in C/C++ with a solid understanding of security principles and cryptographic protocols
- Experience in building and maintaining complex software systems in large-scale or security-sensitive environments
- Strong debugging skills with expertise in diagnosing issues in multi-threaded, cross-platform applications
- Familiarity with web technologies and interest or experience in Rust
- Demonstrated growth mindset and willingness to learn in the areas of browser security and systems programming
COMPLETE JOB DESCRIPTION
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