Senior Software Engineer, Firefox Security

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

📋 Description

• Enhance the security architecture and cryptographic framework of Firefox: Engage in the advancement of Firefox's core security systems, emphasizing cryptographic protocols, WebPKI, and security-critical web APIs. Assist in the implementation and upkeep of security features that facilitate the development of public key infrastructure on the web.

• Design and implement web platform security features: Collaborate with colleagues and the wider web community to develop and deliver web platform features. Contribute to secure, standards-compliant, and interoperable implementations across Firefox.

• Boost browser reliability, performance, and resource efficiency: Investigate and resolve issues that affect stability, correctness, and performance. Assess and enhance memory usage and efficiency within a complex, multi-threaded browser setting.

• Collaborate on security initiatives: Work together with engineers from various teams to identify, prioritize, and tackle security challenges. Engage in debugging, root cause analysis, and the implementation of effective long-term solutions.

• Participate in technical design and planning: Take part in technical discussions, design evaluations, and project planning related to security initiatives. Aid in assessing trade-offs and contribute to engineering decisions within your domain of expertise.

⛳️ Requirements

• Strong software engineering and security fundamentals: Experience in software engineering with proficiency in C/C++ and a robust understanding of security principles, including cryptographic protocols and their implementations.

• Experience in building and maintaining complex software systems: Capability to contribute to the design, implementation, testing, and maintenance of software in large-scale or security-sensitive settings.

• Strong debugging and problem-solving skills: Expertise in diagnosing and resolving issues in multi-threaded, cross-platform native applications, particularly those related to performance and memory.

• Collaborative and effective communicator: Ability to work efficiently with distributed teams, clearly communicate technical concepts, and collaboratively solve problems.

• Growth mindset and willingness to learn: Proven curiosity and a desire to enhance knowledge in browser security, cryptography, and systems programming while continually improving engineering abilities.

• Experience with web platforms and modern systems: Familiarity with web technologies and interest or experience in Rust. Comfortable navigating large, complex, multi-language codebases.

🏝️ Benefits

• Generous performance-based bonus plans available to all eligible employees - we celebrate our success as one unified team.

• Comprehensive medical, dental, and vision coverage.

• Generous retirement contributions with 100% immediate vesting (regardless of your contribution).

• 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 well-being stipend.

• Significant paid parental leave.

• Employee referral bonus program.

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