WebExtensions Senior Engineer

New

Skills

API design Browser architecture Collaboration CSS Debugging tools DOM APIs HTML JavaScript Open source contributions Tooling improvement

Join our team as a Senior Software Engineer, focusing on the implementation and maintenance of WebExtensions APIs and Addon Management in Firefox. You will be responsible for debugging and fixing issues that affect extensions, collaborating with various teams to deliver features, and contributing to both Mozilla-owned extensions and open-source projects.

Key Responsibilities
  • Implement and maintain WebExtensions APIs and Addon Management in Firefox.
  • Debug and fix issues affecting extensions in Firefox.
  • Collaborate with product managers, QA, and the AMO team to deliver features end-to-end.
  • Contribute to Mozilla-owned extensions and system add-ons.
  • Support extension developers by diagnosing issues and improving tooling/documentation.
Required Skills & Qualifications
  • 4+ years in software development.
  • Strong proficiency in JavaScript, DOM APIs, HTML, and CSS.
  • Familiarity with browser architecture and debugging tools.
  • Experience with API design and integration.
  • Ability to navigate and learn from large codebases.
  • Strong communication and distributed-team collaboration skills.

No forms. Your profile is generated instantly.

Job Type: Remote

Salary: Not Disclosed

Experience: Entry

Duration: Months

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