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Senior Web Engine Test Engineer - Session History

Listing for: Mozilla
Full Time position Listed on 2026-11-12
Job specializations:
Salary/Wage Range or Industry Benchmark: 70000 - 110000 GBP Yearly GBP 70000.00 110000.00 YEAR

Job Description & How to Apply Below

Mozilla in United Kingdom is hiring to join the Firefox DOM Core team to improve the health of the Session History area. You will write tests to improve coverage, fix tests and issues to improve Gecko correctness.

Responsibilities include writing Web-Platform tests and Gecko mochitests, fixing problems, and collaborating with Gecko module owners to land changes. Strong debugging and C++/JavaScript skills are essential.

This role is for the Senior Web Engine Test Engineer
- Session History role at Mozilla.

The Senior Web Engine Test Engineer
- Session History position in the IT & Technology field is open for applications.

We have an opening for a Senior Web Engine Test Engineer
- Session History in United Kingdom within IT & Technology.

This role, Senior Web Engine Test Engineer
- Session History at Mozilla, could be your next move.

Position Requirements

10+ Years work experience
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