Sr. Staff Software Engineer, Browser (New Products)

Ladders; United States; Remote; USD 165,000 - 220,000; Full time

Benefits offered by this job

Performance-based bonus

Medical, dental, vision

Retirement contributions

Wellness days

Home office stipend

Professional development budget

Well-being stipend

Parental leave

Employee referral bonus

Job summary

Ladders is seeking a Sr. Staff Software Engineer, Browser (New Products) to advance browser engine capabilities in a remote US-based role. You will prototype, optimize, and test advanced web features, collaborating across subsystems.

The package includes a performance bonus and strong medical and retirement benefits. Responsibilities include designing experiments, evaluating data structures for speed and correctness, and building prototypes for programmatic web content interaction, with a focus

Qualifications

• Deep expertise in a browser engine subsystem with substantial changes.
• Proficiency in C++ or Rust in large systems with performance debugging.
• Ability to explore unfamiliar code, form hypotheses and prototype results.
• Strong understanding of web platform behavior and compatibility.
• Experience with profiling, tracing, and regression tests using reproducible evidence.
• Curiosity about AI agents and coding tools related to AI.

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.

Skills

Browser engine

C++ or Rust

Performance debugging

Web compatibility

AI tooling

Tools

Profiling tools

Debugging tools

Job description

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.