Staff Machine Learning Engineer, Gen AI

Mozilla; London; On-site; GBP 80,000 - 125,000; Full time

Job summary

Mozilla Corporation recherche un Staff Machine Learning Engineer pour son équipe Firefox à Londres. Le poste implique le développement de produits d'IA générative, l'optimisation de modèles et la collaboration avec d'autres équipes pour maximiser l'impact de l'IA. Le candidat idéal a une solide expérience en machine learning et démontre un engagement envers les valeurs de Mozilla.

Benefits

Performance bonuses

Comprehensive health coverage

Retirement plans

Wellness days

Professional development budget

Parental leave

Qualifications

• Plus de 6 ans d'expérience en ingénierie de Machine Learning.
• Expérience avec des systèmes distribués.
• Engagement envers les valeurs de Mozilla.

Responsibilities

• Concevoir et intégrer des solutions d'IA générative dans Firefox.
• Construire l'infrastructure pour l'entraînement et l'inférence des modèles.
• Optimiser les modèles déployés pour la performance.

Skills

Leadership

Problem-solving

Communication

Job description

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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 AI at 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

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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.