[Hiring] Senior Software Engineer, Firefox Security @Mozilla

Role Description

Design, build and implement security and hardening features for enterprise users:

• Design, implement, test, and ship cutting-edge security features that strengthen Firefox’s security posture.
• Advance Firefox’s security architecture across multiple operating systems:
• Contribute to and drive cutting-edge improvements to Firefox’s core security posture, by building privilege isolation and moving trust boundaries.
• Strengthen Firefox’s security architecture:
• Improve Firefox’s core security mechanisms including cryptographic protocols, WebPKI, and security-sensitive web APIs.
• Contribute to our security initiatives:
• Work across teams to investigate security issues, identify root causes, and deliver robust, maintainable fixes.
• Improve browser reliability and performance:
• Diagnose and resolve issues affecting stability, correctness, performance, and memory usage in a complex, multithreaded environment.

Qualifications

• 3+ years of experience in low-level software engineering.
• Strong proficiency in C and/or C++.
• Solid understanding of security fundamentals.
• Experience diagnosing and resolving issues in multithreaded, cross-platform native applications, including memory and performance challenges.
• Familiarity with web technologies (HTML, CSS, JavaScript) and interest or experience in Rust.
• Ability to work effectively within large, complex, multi-language codebases.
• Experience working with distributed teams.
• Ability to communicate technical ideas clearly in writing and conversation.

Benefits

• Generous performance-based bonus plans to all eligible employees - we share in our success as one team.
• 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).

Company Description

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

Commitment to diversity, equity, inclusion, and belonging:

• Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission.
• We encourage applications from everyone, including members of all equity-seeking communities.
• We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process.
• We are an equal opportunity employer.