IT & Software

Remote Senior Software Engineer - Firefox Security

Mozilla

Remote · Ontario · Canada

Mozilla is seeking a Senior Software Engineer for Firefox Security. This remote Finland role focuses on designing, implementing, and hardening security features across platforms.

You will drive improvements to the core security posture, work with cryptography and WebPKI, and collaborate across teams to resolve issues while maintaining high performance and memory efficiency. You should have solid systems programming experience with C/C++, plus familiarity with web technologies and Rust.

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Reference: WJ-5769_52114 · Posted 05 Nov 2026, 12:34 PM

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