You will diagnose and fix WebGL bugs in Gecko and improve its functionality and security within the Firefox graphics team.
Responsibilities- Diagnose and fix WebGL bugs in Gecko (C++/Rust), including security bugs
- Write tests, work through code review with graphics module owners, and land fixes, with uplifts where needed.
- Keep the ongoing WebGL bug queue under control
Reviewed WebGL fixes and new code landed with tests
Required qualifications- Strong C++ (Rust a plus).
- Graphics / GPU experience, ideally WebGL.
- Security mindset, and comfort with sandbox and IPC architectures (WebGL is a security target).
- Strong debugging in a multithreaded codebase.
- Prior browser-engine / Gecko experience.
- Security research or fuzzing experience.
Skills Required
- Strong C++ experience
- Rust experience
- Graphics or GPU experience, ideally WebGL
- Security mindset and comfort with sandbox and IPC architectures
- Strong debugging skills in a multithreaded codebase
- Prior browser-engine or Gecko experience
- Security research or fuzzing experience
Mozilla Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Mozilla and has not been reviewed or approved by Mozilla.
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Healthcare Strength — Health coverage is fully employer‑paid in the U.S. and Canada, with generous coverage noted in most other countries. Mental‑health care access, including therapy and coaching, is emphasized.
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Parental & Family Support — Paid parental leave is described as substantial for both childbearing and non‑childbearing parents in the U.S. and Canada. Family‑friendly policies extend to dependent healthcare coverage.
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Strong & Reliable Incentives — Performance‑based bonus plans are offered to all regular employees, with individual targets and quarterly opportunities. This cash‑oriented model provides predictable, company‑wide incentive structures.
Mozilla Insights
What We Do
A lot of companies say they’re “mission-driven.” Our unique corporate structure guarantees that every decision we make upholds our mission: to ensure the internet remains open and accessible. Beholden to neither shareholders nor investors, Mozilla Corporation is wholly owned by the not-for-profit Mozilla Foundation. Along with our communities of 20,000+ contributors and collaborators, Mozilla Corporation’s staff designs, builds, and distributes software that allows people to enjoy the internet on their own terms. Our flagship product — the Firefox browser — has expanded into a family of products that protects users and alerts them of risks, safeguards passwords and provides a secure VPN (with more to come). By maintaining a safe, open internet we're helping humanity, while also helping the individual humans employed here to reach their personal and professional goals. With a relatively small team serving hundreds of millions of people, a culture of exploration, and a commitment to mentorship, opportunities abound to learn and grow at Mozilla.









