Contract Senior Software Engineer - WebGPU-Firefox/Gecko (Rust)
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Mozilla
US
Summary
You will resolve correctness and security bugs within the wgpu project and Firefox's Gecko engine to enable WebGPU support on Linux and Android. This involves diagnosing application blockers, passing conformance test suites, and collaborating with maintainers to land fixes upstream.
Job Description
The role
You will help the Firefox WebGPU team clear its backlog of correctness and security bugs in wgpu, Firefox’s WebGPU implementation, so WebGPU can ship on Linux and Android. You will take on well-defined, prioritized issues, land fixes upstream in the open-source wgpu project and in Gecko, and free the core team to focus on the remaining release-blocking work.
Responsibilities
- Fix prioritized correctness and validation bugs from the wgpu "WebGPU for Firefox" project (the “Current”, “CTS Burndown”, “Linux release” and “Android release” columns), plus security and fuzzer-reported bugs.
- Diagnose and fix application blockers, real apps and demos that do not yet work in Firefox Nightly (the webgpu-apps meta-bug).
- Work through WebGPU conformance test suite (CTS) failures.
- Write and pass tests, work through code review with wgpu maintainers and Gecko module owners, and land upstream.
- Coordinate with the Firefox WebGPU team on task selection and priority.
Scope and references
- wgpu "WebGPU for Firefox" GitHub project
- webgpu-apps meta-bug (Bugzilla) blockers
- WebGPU conformance test suite (CTS) expected-failure lists
- Specific issue lists to be provided by the WebGPU team
Definition of done
Reviewed fixes landed upstream in wgpu and in Gecko, with tests, measurably reducing the P2/P3 backlog, app blockers, and CTS failures, contributing to WebGPU riding the trains on Linux and Android.
Required qualifications
- Strong Rust.
- Experience in a large systems or graphics codebase, and the ability to ramp on wgpu quickly.
- Comfort working upstream in an open-source project (public issues and code review).
- Solid debugging skills (validation bugs, corner cases, fuzz findings).
Preferred
- Prior contributions to wgpu (the team can onboard an existing wgpu contributor fastest).
- WebGPU / graphics / GPU experience. Modern graphics APIs: Vulkan, DirectX/D3D 11/12, Metal. Shader languages: WGSL, HLSL, MSL, SPIR-V.
- Low-level Android graphics experience
- Security or fuzzing experience. Web security model.
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.
Founded
2005
Company size
501-1,000 employees
Industry
Software Development
Org type
Privately Held
Headquarters
San Francisco, CA
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.
Founded
2005
Company size
501-1,000 employees
Industry
Software Development
Org type
Privately Held
Headquarters
San Francisco, CA
