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Staff Firefox Performance Engineer

LocationRemote, United States
SetupRemote
LevelSenior
Posted5d ago
Apply by2026-12-31
Engineering & Technology

Quick answer

Mozilla is hiring a remote Senior Staff Firefox Performance Engineer (US-based) paying $163,000—$218,000 USD to work on making the fastest browser possible.

Role
Staff Firefox Performance Engineer
Organization
Mozilla
Location
Remote, United States
Work setup
Remote
Level
Senior
Compensation
$163,000—$218,000 USD
Category
Engineering & Technology
Apply by
2026-12-31

The role

Mozilla is seeking a Firefox Performance Engineer to work on making the fastest browser possible. The role involves writing code, profiling performance bottlenecks, and educating other teams on performance best practices.

What you'll do

  • Write code and tests
  • Tackle performance problems
  • Educate other teams on performance best practices
  • Contribute to the Performance team's technical roadmap
  • Own the performance of a significant area of the browser end to end

What it takes

  • BS/MS in CS or CE
  • Deep proficiency in C++
  • Working proficiency in JavaScript
  • Proven experience developing performance-critical software
  • Proven skill in debugging and analyzing performance bottlenecks
  • Experience collaborating with engineers on other teams

What you'll bring

C++JavaScriptPerformance optimizationCode reviewsDebugging and profiling

How we treat you

Generous performance-based bonus plans, rich medical coverage, retirement contributions, wellness days, home office stipend, professional development budget, well-being stipend, parental leave, employee referral bonus program

Frequently asked questions

Where is the job located?

The job is remote, with a preference for US-based candidates.

What is the compensation?

The compensation range is $163,000—$218,000 USD.

What are the key qualifications?

Key qualifications include deep proficiency in C++, working proficiency in JavaScript, and proven experience developing performance-critical software.

How do I apply?

You can apply now on the Mozilla job posting page.

How to apply

Apply directly on Mozilla's site. We link straight through — no resume parsing, no profile to fill out.

Apply now →

This listing is aggregated from a third-party source and its summary may be auto-generated, so details can be inaccurate or out of date. ForGood is not the employer and is not liable for the content — please verify everything on Mozilla's official posting before applying.

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