Senior Contract C++ / JavaScript Software Engineer Firefox (Browser Engine)
mozilla · Germany
- Level
- Senior
- Type
- full-time
- Mode
- On-site / hybrid
- Posted
- 2026-10-22
- Team
- Firefox
Role description
The role You will help the Firefox DOM Core team improve the health of the Session History area. You will write tests to improve the coverage; you will fix tests and/or problems to improve the Gecko correctness. Responsibilities Write Web-Platform tests to improve the coverage, and Gecko mochitests as needed Fix the problems and pass the tests to improve the Gecko correctness Work through code review with the relevant Gecko module owners and iterate to landing Definition of done Improved Session History test coverage and code correctness in Gecko, measured by passed test cases, allowing the team’s senior engineers to focus on security, performance and strategic projects.…
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