Senior Software Engineer

Job Summary

A company is looking for a Senior Software Engineer, WebExtensions.

Key Responsibilities

• Implement and maintain WebExtensions APIs and Addon Management, ensuring a balance of power, safety, and performance
• Debug and fix issues affecting extensions in Firefox
• Collaborate with product managers, QA, and engineering teams to deliver features end-to-end

Required Qualifications

• 4+ years of professional experience in software development
• Strong proficiency in JavaScript, DOM APIs, HTML, and CSS
• Familiarity with modern browser architecture and debugging tools
• Experience with API design and integration
• Ability to navigate and learn from large codebases