Senior security engineer building hardening features for Firefox across operating systems.
Design and implement security features to strengthen Firefox's defense mechanisms, including privilege isolation, cryptographic protocols, and WebPKI improvements. Work with distributed teams to investigate security issues, diagnose root causes, and resolve performance or stability problems in a complex, multithreaded codebase. Requires 3+ years of low-level systems programming expertise in C/C++, strong security fundamentals, and familiarity with web technologies and modern systems.
Membership is €29/month, cancel anytime: every rate, every original listing link, and a daily alert for roles matching your filters.
Found at a specialist agency · listed 14 October 2026 · InsideJobs links you to the original posting.