Responsibilities
- Write code and tests, build prototypes, and analyze and resolve Firefox performance bottlenecks.
- Use profiling tools and experimental measurement techniques to diagnose issues and validate solutions.
- Work across Windows, Android, Linux, and macOS browser codebases using several programming languages, especially C++ and JavaScript.
- Educate engineering teams through code reviews, talks, tooling, and documentation focused on performant code.
- Define and drive actionable next steps from high-level objectives and lead cross-organization performance efforts.
- Shape performance benchmarks, prioritize improvements, set team goals, and develop strategies for the future of the Performance team and organization.
- Motivate and align cross-functional teams to deliver shared performance goals.
Requirements
- Bachelor's or master's degree in computer science or computer engineering.
- At least 7 years of relevant experience.
- Mastery of C++ programming and understanding of JavaScript programming.
- Proven experience developing performance-critical software.
- Proven ability to debug and analyze performance bottlenecks using profiling tools such as VTune and Xperf.
- Experience with multithreading, concurrency, disk I/O, and GPU.
- A proven track record of setting team goals and driving them to completion.
- Experience motivating and aligning cross-functional teams.
- Ability to work effectively in a geographically distributed team with strong asynchronous written and verbal communication.
- Preferred qualifications include familiarity with web standards or patterns, Android or Windows application programming, statistics, and modern web browser development.
Benefits
- Performance-based bonus plans for eligible employees.
- Medical, dental, and vision coverage.
- Retirement contributions with immediate vesting.
- Quarterly company wellness days, country-specific holidays, and a birthday day off.
- One-time home office stipend and annual professional development budget.
- Quarterly well-being stipend and paid parental leave.
- Employee referral bonus program and additional country-dependent benefits.
- Remote, geographically distributed work environment.
About Mozilla
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.