Your commitment to quality and doing things right aligns with the goal of improving Gecko correctness.
You can bring empathy for users and test for edge cases that affect real-world experiences.
You are likely to be thorough in your test writing to ensure comprehensive coverage.
You work well independently and can stay motivated by the larger purpose of the project.
You may find the precise, logic-driven debugging and C++ coding challenging, as it requires a more detached analytical approach than you prefer.

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.

Required qualifications

Substantial experience in a browser-engine codebase or in automating for a browser-engine, ideally Firefox/Gecko.
Solid Javascript and applying that language skill to write automated tests.
Proficiency in and experience developing software in C++.
Strong debugging skills in a mature larget codebase.
Comfort working in the open: public bugs, code review, and upstream landing.

Preferred

Prior contributions to Gecko or another major browser engine.
Familiarity with web standards and Web Platform Tests.

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

The role

Responsibilities

Definition of done

Required qualifications

Preferred

Best personality fits for this role

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