Contract DOM Core Test Engineer - Firefox/Gecko

Mozilla; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Mozilla in the United States is seeking a test-focused engineer for the Firefox DOM Core team to improve the health of the Session History area. You will write tests to improve coverage, fix failing tests, and contribute to Gecko correctness.

You will collaborate on code reviews with Gecko module owners, expand Web-Platform tests, and help land changes that increase reliability and coverage across the browser engine.

Qualifications

• Substantial experience in a browser-engine codebase or automating for a browser-engine.
• Strong JavaScript skills applied to writing automated tests.
• Proficiency in C++ development and debugging in large codebases.
• Comfort working in open: bugs, code reviews, and upstream landing.

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

Skills

JavaScript

C++

Test automation

Debugging

Browser engine

Job description

Mozilla in the United States is seeking a test-focused engineer for the Firefox DOM Core team to improve the health of the Session History area. You will write tests to improve coverage, fix failing tests, and contribute to Gecko correctness.

You will collaborate on code reviews with Gecko module owners, expand Web-Platform tests, and help land changes that increase reliability and coverage across the browser engine.