Staff Performance Engineer, Firefox

🔥 0 minutes ago

🇺🇸 United States – Remote

💵 $139k - $218k / year

⏰ Full Time

🔴 Lead

👷🏻‍♀️ Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 0%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Apply Now

Find Similar Remote Jobs

Set Up Email Alert For New Jobs

📊 Check your resume score for this job

Improve your chances of getting an interview by checking your resume score before you apply.

Upload Resume

Mozilla

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1998

👥 B2C

🔒 Cybersecurity

B2C • Cybersecurity • Software

Mozilla is a non-profit organization dedicated to promoting an open and accessible internet. They are the makers of the popular Firefox browser, which emphasizes user privacy, speed, and control. Mozilla also offers a range of products that focus on internet security and privacy, including Mozilla VPN, Firefox Relay, and Mozilla Monitor. Additionally, the organization is involved in open-source projects, AI innovation, and advocating for digital rights. Mozilla aims to empower users with trustworthy technology and policies that protect privacy, support open-source AI development, and foster accountability for tech companies.

📋 Description

• Write code and tests, build prototypes, tackle problems, and profile and analyze performance bottlenecks • Learn and solve problems across a large, complex, and evolving codebase • Use C++, JavaScript, Kotlin, Rust, and Python to fix performance issues, with emphasis on C++ and JavaScript • Educate engineers on other teams through code reviews, talks, tooling, and documentation • Break down complex performance problems into actionable next steps and drive them to completion • Partner with engineering teams across the organization to support and lead performance efforts • Contribute to performance benchmark direction and prioritize important improvements • Own browser performance for a significant area end to end and contribute to the Performance team's technical roadmap • Work with team members to bring the Open Web to millions of people

🎯 Requirements

• BS/MS in CS or CE, and 5+ years of relevant experience • Deep proficiency in C++ • Working proficiency in JavaScript • Proven experience developing performance-critical software • Experimental and measured approach to solving problems using measurement and experiments • Proven skill in debugging and analyzing performance bottlenecks, and using profiling tools such as VTune and Xperf • Experience with at least one of: multithreading and concurrency, disk I/O, or GPU work • Track record of driving projects to completion, including work spanning more than one engineer • Experience collaborating with engineers on other teams to deliver shared goals • Interest and ability to work in a distributed team, with strong asynchronous written and verbal communication skills

🏖️ Benefits

• Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)