Requirements

Bachelor's degree in computer science, engineering, or related field; or equivalent work experience.
At least 4 years experience programming in C++ and Rust with strong knowledge in memory safety, multi-threaded system architecture, or raw data stream manipulation.
Proven ability to onboard quickly and deliver complex software projects.
Track record of independently scoping and delivering complex features within tight deadlines.
Excellent written and verbal communication skills to validate progress and decisions clearly.

Nice to Haves

Previous contributions to Mozilla’s mission and codebase.
Experience working with browser technologies such as Gecko, Chromium, WebKit, or other web engine runtimes.
Interest or experience designing or using ML pipelines for automating developer workflows.
Deep understanding of web architecture, privacy/security models, and client-side data structures.
Knowledge of basic statistical modeling.
Proficiency with Python and SQL.

Implement privacy enhancements, anti-tracking, and threat intelligence protections into the Firefox browser to reduce user tracking and phishing risks.
Develop architectural improvements in Gecko, Firefox’s browser engine.
Write performant, low-latency, maintainable code in C++, JavaScript, and Rust.
Collaborate asynchronously with a geographically distributed team across Europe and US-East.

Generous performance-based bonus plans available to eligible employees.
Generous retirement contributions with 100% immediate vesting, regardless of employee contribution.
Quarterly company-wide wellness days for collective pause and recharge.
Country-specific holidays plus an additional day off for your birthday.
One-time stipend to support home office setup.
Annual professional development budget for skill growth.
Quarterly well-being stipend to support personal wellness.
Considerable paid parental leave.
Employee referral bonus program.
Additional benefits such as life insurance, disability, employee assistance programs (varies by country).