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Staff ML Engineer, New Products

at Mozilla Corporation
New Products
Remote Canada, Remote US
To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu.

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

Why Mozilla? 

Mozilla Corporation is the non-profit-backed technology company behind pioneering brands like Firefox, the privacy-minded web browser, and Pocket, a service for keeping up with the best articles online. More than 225 million people around the world use its products each month.

Along with 60,000+ volunteer contributors and collaborators all over the world, Mozilla Corporation’s staff are driven by our mission to ensure the Internet is a global public resource, open and accessible to all. We design, build and distribute open-source software that enables people to enjoy the internet on their terms.

About this team and role:

Mozilla’s Innovation Studio is a fast-paced organization of entrepreneurs and entrepreneurially-minded individuals. We build new products and experiment quickly to improve and extend the way people access and engage on the Web.

We’re looking for an ML Engineer, who will be the first technical hire and technical lead on a new product line. You will play a key role in shaping and building a new product. You are inventive, creative, and know just how far to plan ahead for a project that operates more like a startup than an established software product. You will work with a very small cross-functional team that includes design, dev, and product management, and you will have wide latitude to operate independently with your teammates. You love to be invigorated by new challenges, you love working collaboratively, and you will have a team that supports you in making your very best contribution. 

What You’ll Do:

  • Lead technical efforts to operationalize ML for a new product line that involves retrieval-augmented generation and workflow automation
  • Develop, and execute strategic, scalable approach to machine learning and generative AI that fits project stage, product roadmap, and organizational priorities and capabilities
  • Prototype cutting edge ML experiments
  • Collaborate with cross-functional teams, including UX/UI designers, product managers, and other engineers to integrate best practices, and related technologies into our emerging products and services 
  • Stay up-to-date with advancements in machine learning, data science, natural language processing, and generative AI, and integrate relevant approaches and techniques

What you’ll bring:

  • 5+ years experience as an Engineer focused on Machine Learning
  • High proficiency with modern machine learning concepts like deep learning, natural language processing, multimodal models, reinforcement learning, fine-tuning, with expertise in one or more areas
  • Experience with model training pipelines and model architectures (e.g. Transformers, RNNs)
  • Strong knowledge of Python
  • Experience working with vector databases (e.g. Chroma, Pinecone)
  • Adept with cloud application architectures and services such as Google Cloud Platform or Amazon Web Services
  • Experience developing software products in a startup or highly lean environments 
  • Excellent problem-solving skills, with the ability to think creatively and strategically.
  • Strong communication and collaboration skills, with a passion for learning and innovation.
  • Excitement to build AI-driven products that can impact future experiences on the web
  • Comfortable with ambiguity and the unknown


  • Experience building scalable applications with 100k+ users 
  • Experience with data security fundamentals and best practices
  • Experience with building pipelines for prompt engineering strategies and retrieval-augmented generation (RAG)
  • Experience with ML development frameworks such as Langchain
  • Experience integrating solutions into modern web frameworks such as React / Svelte
  • Experience with other web programming languages such as Javascript.
  • Familiarity with Data Science or Data Infrastructure principles

What you’ll get:

  • Generous performance-based bonus plans to all eligible employees - we share in our success as one team
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-company wellness days where everyone takes a pause together
  • 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
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)

About Mozilla 

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

Commitment to diversity, equity, inclusion, and belonging

Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission.  We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions.

We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at to request accommodation.

We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws.  Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.

Group: C


Req ID: R2543

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Why Mozilla?

At Mozilla, we’re serving humanity—by maintaining a safe, open internet—while also helping the individual humans employed here to reach their personal and professional goals. With a relatively small team serving hundreds of millions of people, a culture of exploration, and a commitment to mentorship, opportunities abound to learn and grow at Mozilla.

Our values drive our actions

  • Purpose is built into our work, with our mission driving every decision
  • We challenge assumptions, the status quo, ourselves, and each other
  • We are transparent: in our code, our business partnerships, and our everyday interactions
  • We seek out people from diverse backgrounds and with perspectives different from our own
  • We pair purpose with performance and put people ahead of profit

Our impact is global

  • 1000+ paid staff from over 30 countries
  • Thousands of volunteer contributors across six continents
  • 2 global offices: Berlin and Toronto
  • 9 coworking space locations: San Francisco, San Mateo, London, Paris, Portland, Tulsa, Vancouver, Chicago, and Bellevue
  • Hundreds of home offices globally

Our benefits are world-class

  • Flexible work environment (majority of Mozillians work remotely)
  • 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)
  • Reimbursement for professional development (up to $3,000/year)
  • A work setup including the latest hardware and software of your choice