Senior Manager, Firefox Machine Learning

Position Overview

Mozilla Corporation is seeking a Senior Manager to lead the engineering and ML efforts for the Firefox Machine Learning team. This role involves developing, training, and shipping Generative AI models and features that will be integrated directly into Firefox, impacting millions of users daily. You will guide a team of skilled ML engineers focused on user experience, privacy, and innovative research, driving Mozilla's mission to make powerful AI accessible to everyone.

About Mozilla

Mozilla Corporation, backed by a non-profit organization, has been a key player in shaping the internet for over 25 years. Our flagship product, Firefox, is a privacy-focused web browser used by over 225 million people globally. We are committed to reclaiming an internet built for people, not companies, with work spanning AI, social media, security, and more. Our non-profit backing means we prioritize our mission over shareholder interests, enabling us to develop open-source software with global collaborators.

About the Team and Role

The Firefox Machine Learning team is dedicated to building and scaling AI-powered features within Mozilla's flagship product. As the Senior Manager, you will lead the technical direction and execution of Generative AI initiatives, from initial research and prototyping through to deployment and ongoing iteration in production. You will foster a collaborative environment, working closely with product, research, design, and platform teams to deliver user-facing features powered by both proprietary and open-source AI models.

Responsibilities

• Team Leadership: Lead and grow a team of ML engineers focused on developing Generative AI models and integrating them into Firefox experiences.
• End-to-End ML Development: Drive the complete machine learning product lifecycle, including research, prototyping, model training, evaluation, deployment, and production iteration.
• Cross-Functional Collaboration: Partner with product, research, design, and platform teams to deliver user-centric features leveraging AI models.
• Technical Strategy: Define and execute technical strategies for ML initiatives, ensuring alignment with Mozilla's mission and Firefox's product roadmap.
• Engineering Excellence: Champion engineering best practices, inclusion, and a user-first approach throughout the feature development process.

Requirements

• Experience:
  • 10+ years of experience in machine learning.
  • 5+ years in technical management roles.
  • 5+ years building and deploying ML or Generative AI systems in production, including experience with LLMs, transformers, or multimodal models.
  • Proven success managing high-performing engineering teams in shipping AI features to a large user base.
• Technical Skills:
  • Deep expertise in modern ML development frameworks (e.g., PyTorch, TensorFlow).
  • Experience with scalable training/inference infrastructure and MLOps practices.
  • Experience with on-device machine learning model development and deployment is a strong plus.
  • Familiarity with privacy-preserving ML techniques (e.g., differential privacy, federated learning) is a plus.
• Education:
  • Master's degree or Ph.D. in Computer Science, Machine Learning, or a related field, or equivalent industry experience.
• Communication:
  • Strong communication skills with the ability to translate complex technical concepts into actionable plans for cross-functional teams.

Commitment to Values

• Welcoming Differences: Foster an inclusive and equitable team environment.
• Relationship-Minded: Build trusting partnerships across Mozilla and the wider community.
• Responsible Participation: Promote ethical and privacy-aware use of AI.
• Grit: Lead through ambiguity and pursue impactful goals with persistence and creativity.

What You'll Get

• Generous performance-based bonus plans.
• Rich medical, dental, and vision coverage.
• Generous retirement contributions with 100% immediate vesting.

Employment Type:

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Location Type:

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Salary:

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