Senior Software Engineer, Firefox Performance

October 6

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Mozilla

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B2C • Cybersecurity • Software

Mozilla is a non-profit organization dedicated to promoting an open and accessible internet. They are the makers of the popular Firefox browser, which emphasizes user privacy, speed, and control. Mozilla also offers a range of products that focus on internet security and privacy, including Mozilla VPN, Firefox Relay, and Mozilla Monitor. Additionally, the organization is involved in open-source projects, AI innovation, and advocating for digital rights. Mozilla aims to empower users with trustworthy technology and policies that protect privacy, support open-source AI development, and foster accountability for tech companies.

501 - 1000 employees

Founded 1998

👥 B2C

🔒 Cybersecurity

📋 Description

• Write code and tests, build prototypes, tackle problems, profile and analyze performance bottlenecks • Learn about a wide variety of problems and solutions across a large, mature codebase (ex: what can slow things down when you have old code talking to new code and what can we do about it?) • Use several programming languages (e.g., C++, JavaScript, Kotlin, Rust, Python) and techniques to fix performance issues, with an emphasis on C++ • Help to educate engineers on other teams about writing more performant code through code reviews, giving talks, and/or writing documentation • Work with driven, committed team members to help bring the Open Web to millions of people

🎯 Requirements

• 5+ years experience as a software engineer • A solid understanding and strong working experience in C++ • Experience developing performance critical software • Proven experience taking an experimental and measured approach to solving problems (measurement, and using experiments to diagnose an issue or prove out a solution) • Strong debugging skills in analyzing performance bottlenecks • An interest and ability to work in a distributed team (which requires good asynchronous written communication skills as well as good verbal communication skills) • Commitment to our values: • Welcoming differences • Being relationship-minded • Practicing responsible participation • Having grit • Bonus Points: • Experience with multithreading and concurrency, disk I/O, GPU, etc • Familiarity with Android or Windows OS application programming, profiling and debugging

🏖️ Benefits

• Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)