Contract Software Engineer - DOM Core Firefox/Gecko

Mozilla; Paris; Sur place; EUR 70 000 - 110 000; Plein temps

Résumé du poste

Mozilla in Paris seeks a test engineer for the Firefox DOM Core team, focused on improving the health of the Session History area. You will write tests to improve coverage and fix tests and problems to enhance Gecko correctness.

You will work with module owners, review changes, and contribute to Web Platform Tests. Strong JavaScript and C++ skills are valued, with experience in browser engines and open-source collaboration.

Qualifications

• Experience in browser-engine codebases or automation for a browser-engine (Firefox/Gecko preferred).
• Strong JavaScript skills for writing automated tests.
• Proficiency in C++ development.
• Strong debugging skills in a large codebase.
• Experience with public bugs, code reviews, and upstream landing.

Responsabilités

• Write Web-Platform tests to improve coverage and Gecko mochitests as needed.
• Fix tests and problems to improve Gecko correctness.
• Collaborate with Gecko module owners and iterate toward landing.

Connaissances

Browser-engine experience

Automation testing

JavaScript

C++

Debugging

Open source / public bugs

Description du poste

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.

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.