Assistant Ux Designer H/F

Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.

As a Staff UX Product Designer with an AI focus, you’ll help define the future of browsing and shape the next generation of AI-powered features in Firefox. You’ll collaborate with product managers, engineers, researchers, and content designers to create elegant, scalable experiences rooted in Firefox’s values of privacy, simplicity, and performance. In this high-impact, cross-functional role, you’ll explore new ideas, bring design systems to life, and elevate product quality with refined, visually engaging, and thoughtful design. You’ll influence how millions of people interact with the web—balancing trusted UI patterns with bold, forward-thinking AI innovations.

You’ll design at the forefront of AI technology, shaping how people and businesses benefit from powerful new tools while influencing the future of Firefox—the only major browser not backed by billionaires. Join our distributed, mission-driven team and help make the web better for everyone as we build meaningful new AI experiences.

Lead the design of AI-powered features for Firefox on desktop, guiding ideas from early sketches to live experiences.

Combine familiar interface patterns with inventive AI features so browsing feels fresh, fast, and easy to use.

Work autonomously to identify problems and propose solutions that align with product strategy, user insights, and technical constraints.

Use storyboards, wireframes, and prototypes to explore and refine new ways for people to interact with AI in the browser.

Work side-by-side with product managers, engineers, researchers, and content designers to make design decisions that work for people and for the product.

Design with privacy, accessibility, and trust at the core of every interaction.

Help grow and adapt Firefox’s design systems to keep the desktop experience consistent and cohesive.

7+ years of product design experience, ideally working with complex workflows or multi-step processes.

  • Experience designing AI experiences for consumer products with large user bases.
  • Background in ethical AI practices and privacy‑first design.
  • Familiarity with AI-powered tools or excitement to help shape how people use AI in everyday work.
  • Knowledge of design systems and tools like Jira.
  • Proven track record of delivering end‑to‑end design in ambiguous, large‑scale projects.
  • Curiosity about AI technologies and hands-on experience experimenting or prototyping with them.
  • Strong grasp of visual and interaction design principles: layout, typography, motion, accessibility, and brand expression.
  • Collaborative, flexible, low‑ego approach; 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)

Country specific holidays plus a day off for your birthday

One-time home office stipend

Considerable paid parental leave

Employee referral bonus program

Other benefits (life/AD&D, disability, EAP, etc. 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. 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 orientation s, 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. 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.

LI-REMOTE

104,000—$151,000 CAD

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