New Products Principal Engineer

Mozilla Foundation

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Job Description

Job Overview

The New Products team at Mozilla is seeking a Principal Software Engineer to lead the development of a browser-automation stack for AI agents. This role involves setting the technical vision, architecting the platform, and actively writing production code. The ideal candidate will work closely with a small team of engineers to deliver core libraries and services that enhance web automation for developers.

Technical Requirements

Required Skills
  • • Go
  • • Ruby
  • • Python
  • • TypeScript
Preferred Skills
  • • browser automation frameworks
  • • AI/ML workflows
Experience Level

10+ years of software engineering experience with at least 3 years in a leadership role

Responsibilities

  • • Define and communicate the long-term technical roadmap for the browser-automation stack
  • • Write high-performance code in languages such as Go, Ruby on Rails, and TypeScript
  • • Design distributed, fault-tolerant services and developer-facing SDKs/APIs
  • • Grow, mentor, and inspire a world-class engineering team
  • • Collaborate with product, design, and developer-relations teams
  • • Translate complex technical trade-offs into clear language for stakeholders

Technical Environment

Languages
Frameworks

Benefits & Perks

  • • Generous performance-based bonus plans
  • • Rich medical, dental, and vision coverage
  • • Generous retirement contributions with 100% immediate vesting
  • • Quarterly all-company wellness days
  • • Country-specific holidays plus a day off for your birthday
  • • One-time home-office stipend
  • • Annual professional development budget
  • • Quarterly well-being stipend
  • • Considerable paid parental leave
  • • Employee referral bonus program

Additional Information

Location
Remote US, Remote Canada
Type
Full-time
Compensation
Hiring ranges from $184,000 to $288,000 USD based on location