Staff Software Engineer, DOM Workers Storage

Requirements:

• Proficiency in C++
• Deep experience with multi-threaded, multi-process codebases, including work on performance-critical, sandboxed or storage architectures
• Ability to work with web specifications (like IndexedDB, File System, Web Workers, Service Workers), with the curiosity and adaptability to quickly deepen this expertise
• Cross-platform development experience with native applications (desktop and mobile)
• Proven ability to deliver maintainable solutions in large, evolving codebases
• Strong problem-solving skills, able to diagnose complex issues without clear logs or reliable reproduction steps
• Great written communication skills and ability to lead discussions effectively, both in writing and verbally

What You'll Be Doing:

• Improve Storage, Workers and system-level surfaces of our Web engine, with a strong focus on performance, stability and security
• Develop and debug in a large, complex, multi-threaded, and multi-process codebase
• Develop and debug across multiple platforms
• Investigate issues and propose solutions and architectural improvements
• Drive features and projects from start to completion
• Read and implement API specifications, and contribute to the standards process
• Collaborate with the widespread Firefox team on shared goals