Senior Staff Browser Engineer - New Products (Remote)

Devconnectplatform; United States; Remote; USD 180,000 - 240,000; Full time

Job summary

Mozilla is seeking a Sr. Staff Software Engineer for Browser (New Products), a remote full-time role spanning the US and Canada. You will lead experiments inside browser engine subsystems, prototype reliability-enhancing features, and measure outcomes with benchmarks and profiling.

A hands-on senior IC with strong C++ or Rust and deep browser knowledge will thrive in a large codebase. You\'ll work with AI tools extensively while validating results through rigorous testing and measurement,

Qualifications

• Deep experience in at least one browser subsystem
• Strong C++ or Rust
• Comfort in a very large codebase
• Solid grasp of how the web platform behaves
• Interest in AI agents and tooling

Responsibilities

• Design and build experiments in engine subsystems (DOM, layout, accessibility, JS runtime, networking) inside browser engine internals
• Prototype features that enable programs to interact with web pages reliably
• Measure performance with repeatable benchmarks and profiling overhead
• Document and share results from experiments, including those that didn\'t work as expected
• Use AI tools heavily, but verify outputs by testing and measuring

Job description

Mozilla is seeking a Sr. Staff Software Engineer for Browser (New Products), a remote full-time role spanning the US and Canada. You will lead experiments inside browser engine subsystems, prototype reliability-enhancing features, and measure outcomes with benchmarks and profiling.

A hands-on senior IC with strong C++ or Rust and deep browser knowledge will thrive in a large codebase. You\'ll work with AI tools extensively while validating results through rigorous testing and measurement,