Senior Machine Learning Engineering Manager, Mozilla
GenAI
€142-190k
+ Generous performance-based bonus plans to all eligible employees
Designs, builds, and distributes internet software
Be an early applicant
Designs, builds, and distributes internet software
1001+ employees
Be an early applicant
€142-190k
+ Generous performance-based bonus plans to all eligible employees
1001+ employees
Company mission
To make sure that the internet remains accessible, open, and transparent to everyone.
Role
Who you are
- 10+ years of experience in machine learning, with 5+ years in technical management roles
- 5+ years of experience building and deploying ML or Generative AI systems in production environments, including experience with LLMs, transformers, or multimodal models
- Proven track record of managing high-performing engineering teams in shipping AI features to millions of users
- Deep expertise in modern ML development frameworks (e.g., PyTorch, TensorFlow), 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 such as differential privacy or federated learning is a plus
- Master’s degree or Ph.D in Computer Science, Machine Learning, or a related field (or equivalent industry experience)
- Strong communication skills with the ability to translate complex technical concepts into collaborative plans with cross-functional collaborators
- Commitment to our values:
- Welcoming differences – Foster an inclusive and equitable team environment
- Being relationship-minded – Build trusting partnerships across Mozilla and the broader community
- Practicing responsible participation – Promote ethical and privacy-aware use of AI
- Having grit – Lead through ambiguity and pursue impactful goals with persistence and creativity
What the job involves
- The Firefox Machine Learning team is building and scaling AI-powered features across Mozilla’s flagship product to make the browser smarter, more helpful, and more human-centered
- As a Senior Manager of this team, you will lead the engineering and ML efforts to develop, train, and ship Generative AI models and features that integrate directly into Firefox, shaping the way millions of users interact with the web every day
- You will guide a team of highly skilled ML engineers working at the intersection of user experience, privacy, and innovative research, driving Mozilla’s vision for making powerful AI accessible to everyone
- Lead and grow a team of ML engineers developing Generative AI models and integrating them into Firefox experiences
- Drive end-to-end machine learning product development—from research and prototyping to model training, evaluation, deployment, and iteration in production
- Collaborate cross-functionally with product, research, design, and platform teams to deliver user-facing features powered by proprietary and open-source AI models
- Define technical strategy and execution plans for ML initiatives aligned with Mozilla’s mission and Firefox’s product roadmap
- Champion engineering excellence, inclusion, and a user-first perspective in every phase of feature development
Our take
Mozilla creates and manages a range of free-to-use software products. Their most well-known product is Firefox, the fourth most popular internet browser in the world. Mozilla is a not-for-profit with a focus on promoting online privacy. The company has a published manifesto outlining its commitment to keeping a balance between commercial profit and public benefit.
The companies other products include Bugzilla, a bug management platform, and Pocket, an award-winning digital content filing service. In direct odds with Google, Mozilla has recently launched a new product Mozilla VPN. The VPN or virtual private network enables users to browse the internet without being tracked. Companies such as Google rely on tracking user behavior online to target them with advertising.
Mozilla was also instrumental in creating the programming language Rust, which is admired for its brevity. Rust uses roughly half the amount of code as C++ to produce the same results.
Freddie
Company Specialist at Welcome to the Jungle
Insights
12% employee growth in 12 months
Company
Funding (last 2 of 3 rounds)
Apr 2018
$1.2m
GRANT
Jan 2005
$0.3m
ANGEL
Total funding: $3.5m
Company benefits
- Health, Dental, and Vision Insurance
- Life Insurance + Accidental Death & Dismemberment
- Short-Term Disability and Long-Term Disability Insurance
- Employee Assistance Program (EAP)
- Retirement Plan contributions
- 20 Paid Time Off days per year (prorated) + your birthday
- Company Holidays + Shutdown
- Wellness budget
- Reimbursement for professional development (up to $3,000/year)
- Industry-leading paid parental leave (up to 26 weeks of fully paid leave for childbearing parents and up to 12 weeks for non-childbearing parents)
- Flexible work environment (nearly half of Mozillians work remotely)
- A work setup including the latest hardware and software of your choice
Company HQ
Rincon Hill, San Francisco, CA
Leadership
Mitchell Baker
(CEO & Chairwoman)Mitchell worked as a lawyer and at Netscape Communications before co-founding Mozilla in 2003. They have served as Chairwoman of Mozilla Foundation since then, and CEO as of April 2020.
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