Senior Software Engineer, Firefox Security

This is a fully remote position, open to applicants in United Kingdom.

📋 Description

• Design, develop, test, and deploy security and hardening features that enhance the security framework of Firefox for enterprise users.

• Contribute to and lead improvements in security architecture across various operating systems, focusing on privilege isolation and adjusting trust boundaries.

• Enhance Firefox's fundamental security mechanisms, encompassing cryptographic protocols, WebPKI, and security-sensitive web APIs.

• Collaborate with teams to investigate security vulnerabilities, determine root causes, and implement robust, maintainable solutions.

• Identify and resolve issues impacting stability, accuracy, performance, and memory usage within a complex, multithreaded environment.

⛳️ Requirements

• Over 3 years of experience in low-level software engineering.

• Strong expertise in C and/or C++.

• Solid grasp of security principles.

• Experience in diagnosing and troubleshooting issues in multithreaded, cross-platform native applications.

• Familiarity with memory management and performance-related challenges.

• Knowledge of web technologies, including HTML, CSS, and JavaScript.

• Interest in or experience with Rust.

• Capability to work efficiently within large, intricate, multi-language codebases.

• Experience collaborating with distributed teams.

• Ability to articulate technical concepts clearly in both written and verbal communication.

🏝️ Benefits

• Generous performance-based bonus plans for all eligible employees - we succeed together as one team.

• Competitive retirement contributions with 100% immediate vesting (regardless of personal contributions).

• Quarterly wellness days for the entire company, allowing everyone to take a collective pause.

• Country-specific holidays, plus an additional day off for your birthday.

• One-time stipend for home office setup.

• Annual budget for professional development.

• Quarterly stipend for well-being initiatives.

• Extensive paid parental leave.

• Employee referral bonus program.

• Additional benefits (life/AD&D, disability, EAP, etc. - varies by country).