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Senior Contract C++ / JavaScript Software Engineer (Browser Engine)

mozilla

Eu
Firefox
Publié le 14 novembre 2026

Description du poste

<h2><strong>The role</strong></h2> <p><span style=&quot;font-weight: 400;&quot;>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.</span></p> <h2><strong>Responsibilities</strong></h2> <ul> <li style=&quot;font-weight: 400;&quot;><span style=&quot;font-weight: 400;&quot;>Write Web-Platform tests to improve the coverage, and Gecko mochitests as needed </span></li> <li style=&quot;font-weight: 400;&quot;><span style=&quot;font-weight: 400;&quot;>Fix the problems and pass the tests to improve the Gecko correctness</span></li> <li style=&quot;font-weight: 400;&quot;><span style=&quot;font-weight: 400;&quot;>Work through code review with the relevant Gecko module owners and iterate to landing</span></li> </ul> <h2><strong>Definition of done</strong></h2> <p><span style=&quot;font-weight: 400;&quot;>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.</span></p> <h2><strong>Required qualifications</strong></h2> <ul> <li style=&quot;font-weight: 400;&quot;><span style=&quot;font-weight: 400;&quot;>Substantial experience in a browser-engine codebase or in automating for a browser-engine, ideally Firefox/Gecko.</span></li> <li style=&quot;font-weight: 400;&quot;><span style=&quot;font-weight: 40