Sr. Staff Software Engineer, Browser (New Products)

For our client, we are seeking a Sr. Staff Software Engineer, Browser (New Products) to join the team of a leader in the Consumer Technology space. This role will focus on advancing browser engine capabilities through experimentation, prototyping, and performance-oriented engineering in a highly technical environment. You will work across core browser subsystems, partnering with other engineers to evaluate tradeoffs in data structures, responsiveness, correctness, and web compatibility. The work will also explore programmatic interaction with web content and the use of AI-assisted coding tools to accelerate analysis and development. Location: Remote - US based candidates only, no visa sponsorship available Compensation: $165,000 – $220,000 annually Responsibilities Design and implement experiments within browser engine subsystems. Investigate the impact of internal data structures on performance and correctness. Evaluate efficient representations of browser state, considering tradeoffs. Prototype capabilities for programmatic interaction with web content. Instrument browser behavior and measure changes against repeatable tasks. Profile overhead from new capabilities and pursue performance improvements. Utilize AI tools for coding and analysis, verifying outputs through testing. Qualifications Deep expertise in a browser engine subsystem, such as DOM, layout, or JavaScript, with a track record of substantial changes. Proficiency in C++ or Rust, with experience in large systems codebases and performance debugging. Ability to investigate unfamiliar code, form hypotheses, and build prototypes based on results. Strong understanding of web platform behavior and compatibility, especially in complex scenarios. Experience with profiling, tracing, and regression tests, grounded in reproducible evidence. Curiosity about AI agents and experience with coding tools related to AI. Benefits Generous performance-based bonus plans for eligible employees. Rich medical, dental, and vision coverage. Generous retirement contributions with immediate vesting. Quarterly wellness days for all employees. Country-specific holidays plus a day off for your birthday. One-time home office stipend for remote work setup. Annual professional development budget for skill enhancement. Quarterly well-being stipend to support employee health. Considerable paid parental leave for new parents. Employee referral bonus program to encourage team growth. Our client is an equal opportunity employer. We encourage you to apply even if you don’t meet every qualification—your background could be exactly what this team needs.