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Staff Machine Learning Engineer, Gen AI (Basé à London)

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4 weeks ago
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Staff Machine Learning Engineer, Gen AI, London

Location: London, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Reference: b23cfa65d8bd

Job Views: 57

Posted: 24.06.2025

Expiry Date: 08.08.2025

Job Description:

Staff Machine Learning Engineer, Gen AIat Mozilla Corporation

Team: Firefox

Locations: Remote Canada, Remote Netherlands, Remote Sweden, Remote France, Remote Germany, Remote Spain, Remote Belgium, Remote Finland, Remote Denmark, Remote UK, Remote US

To learn the Hiring Ranges for this position, please select your location from theApply Nowdropdown menu.

To learn more about our Hiring Range System, please click here.

Why Mozilla?

Mozilla Corporation is a non-profit-backed technology company that has shaped the internet for the last 25 years. We create pioneering brands like Firefox and Pocket, serving over 225 million users monthly. Our mission is to make the internet better for people, focusing on AI, social media, security, and more. We are committed to open-source software and a user-first approach.

About this team and role:

The Firefox team is dedicated to delivering a fast, friendly, and usable browser. We are seeking a Staff Machine Learning Engineer to develop Generative AI products and tools, ensuring safe and effective AI experiences in Firefox.

What is a Staff Engineer at Mozilla?

A Staff Engineer is a domain expert leading multi-month projects, influencing engineering teams, mentoring others, and collaborating on strategy and improvement initiatives.

What you’ll do:

  • Design, develop, and integrate Generative AI solutions in Firefox.
  • Build infrastructure for training and inference of language and vision models.
  • Implement validation and testing for models.
  • Monitor and optimize deployed models for performance.

What you'll bring:

  • 6+ years of experience in Machine Learning engineering.
  • Experience with ML tooling, infrastructure, and distributed systems.
  • Leadership in architecture design and team velocity improvement.
  • Strong problem-solving and communication skills.
  • Experience with cross-team collaboration and documentation.
  • Commitment to Mozilla values: inclusivity, relationships, responsibility, grit.

Bonus Points:

  • Experience with cloud-based LLM solutions.
  • Open source contributions and deployed projects.
  • Knowledge of responsible AI and user-centric design.
  • Excellent communication skills.
  • Experience with browser extension architecture and open source environments.

What you’ll get:

  • Performance bonuses, comprehensive health coverage, retirement plans.
  • Wellness days, holidays, birthday leave, home office stipend.
  • Professional development budget, well-being stipend, parental leave.
  • Referral bonuses and additional benefits.


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