Staff Software Engineer Ai Agents

Mozilla

Build browser engine capabilities remotely from Canada, using profiling and AI tools to improve reliable programmatic web interaction. Investigate performance with evidence.As a Staff Software Engineer on Mozilla’s new products team, you will prototype capabilities supporting interaction with web content. Your work examines document structure, layout, navigation, event handling, and performance. You will also connect implementation choices with information available to AI agents.Key Responsibilities:
Prototype engine capabilities for reliable programmatic web interactionInvestigate document structure, layout, navigation, and event handlingProfile overhead introduced by new capabilitiesPursue improvements supported by performance measurementsUse AI tools, debugging, tests, and measurementRequirements:
Investigate unfamiliar code and form precise hypothesesConstruct useful prototypes and interpret their resultsExperience with profiling, tracing, regression, or conformance testsGround performance claims in reproducible evidenceCuriosity about AI agents and coding toolsApply staff-level engineering judgment to browser capabilities, AI-assisted development, profiling, testing, and measurable performance improvements at Mozilla.
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