Senior contract engineer to improve Firefox DOM Session History testing and correctness.
Strengthen the Firefox browser engine's Session History subsystem by writing and fixing tests, debugging issues in the Gecko codebase, and collaborating with module owners through code review. You'll need deep expertise in C++, JavaScript test automation, and ideally prior experience with Firefox or another major browser engine's internals. This remote contract role suits experienced developers comfortable with open-source workflows.
Membership is €29/month, cancel anytime: every rate, every original listing link, and a daily alert for roles matching your filters.
Found at a specialist agency · listed 21 October 2026 · InsideJobs links you to the original posting.