Sr. Staff Software Engineer, Browser (New Products) is open at Mozilla (Remote Canada). The posting gives a salary of CA$149K - CA$220K. Posted on Oct 8, 2026, and still on Mozilla’s careers page when we last checked, on Nov 14, 2026.
About the role
Design and implement experiments within browser engine subsystems. Investigate how internal data structures and execution behavior affect performance, correctness, and the interfaces exposed to developer tools. Evaluate ways to represent and expose browser state efficiently and accurately. Identify the tradeoffs in each approach, including information loss, implementation complexity, and compatibility with dynamic…
The opening lines of the posting. The rest is on Mozilla’s careers page.
Hiring at Mozilla
Mozilla has 121 open roles right now, 121 of them remote. Most are in Engineering, Security and Sales & Business Development. The median advertised salary across its roles with a published range is $178K. See all its roles
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