Staff Software Engineer – Networking

In this role you will:

• Improve Firefox’s web browsing experience with a particular focus on the networking stack and network related API, e.g. Fetch, WebTransport, etc.
• Design and implement new web platform features in collaboration with the web community.
• Debug and fix problems in our multi-threaded codebase.
• Debug platform-specific networking issues.
• Improve Firefox’s stability and correctness.
• Analyze and reduce Firefox’s memory usage.
• Work cooperatively with other Mozillians to identify and correct issues.

Your professional profile:

• Proficient with C++.
• Experience or interest in learning Rust.
• Networking experience, including strong familiarity with tools such as Wireshark and protocols such as TCP, UDP, SSL/TLS, and HTTP.
• Experience working on a cross-platform native application.
• Creative problem-solver and skilled debugger.
• Experience writing and debugging multi-threaded code.
• Ability to learn a large and complex multi-language code base.
• Excellent written and verbal communication skills.
• Familiarity or interest in learning the modern web platform.