Senior Staff UX Designer

A lot of companies say they’re “mission-driven. ” Our unique corporate structure guarantees that every decision we make upholds our mission: to ensure the internet remains open and accessible.


Employee count: 1001-5000

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Why Mozilla?

Mozilla Corporation, the non-profit-backed technology powerhouse, has been a beacon for a better internet over the past 25 years. Home to groundbreaking brands like Firefox and Pocket, we stand at the forefront of online privacy and content curation. With over 225 million users globally relying on our products each month, our trajectory for the next quarter-century is as ambitious as it is essential. Our multidisciplinary work spans AI, social media, and cybersecurity, all while staying true to our mission: an internet that elevates everyone. As part of the Mozilla family, you’ll work alongside 60,000+ passionate contributors, crafting open-source software for a more equitable online experience.

About this team and role:

Our UX/Product Design team is an ensemble of expertise, where visual design, interaction design, content strategy, and user research converge to create compelling user experiences. As a Senior Staff Product/UX Designer, you are encouraged to lead with vision and influence, overseeing a portfolio of projects within the desktop product that will have a lasting impact on Mozilla’s design practice. Your role is multifaceted:
  • Ensure cohesive project oversight, aligning with strategic vision while advocating for design innovation.
  • Drive the evolution of Firefox's design language, improving user interaction and brand distinctiveness.
  • Facilitate design discovery in collaboration with cross-functional teams, influencing product development with user-centric research and insights.
  • Streamline delivery execution, optimizing workflows and ensuring high-quality design outcomes.
  • Invest in mentoring and developing the team, nurturing a learning culture that adopts the latest trends and best practices in design.

What you’ll do:

  • Lead design initiatives across multiple projects, ensuring alignment with strategic business goals.
  • Evolve and refine Mozilla's design language, establishing a coherent and impactful user experience.
  • Coordinate on user research and market analysis to inform innovative design strategies.
  • Enhance design delivery by streamlining processes and encouraging inter-departmental collaboration.
  • Mentor junior designers, fostering professional growth and cultivating a culture of excellence within the team.
  • You will report directly to the Director of UX for Firefox Desktop and you will lead or otherwise provide direction on projects encompassing the desktop product.

What you’ll bring:

  • 8+ years of experience in UX/Product Design, with a portfolio that showcases a deep understanding of user-centered design principles.
  • Advanced proficiency in design tools and software, with the ability to guide and improve team usage and standard methodologies.
  • Experience in leading design projects from conception to completion, across multiple platforms and devices.
  • A track record of mentoring and developing design talent, with a passion for encouraging a collaborative and inclusive team environment.
  • Commitment to our values:
    • Welcoming differences
    • Being relationship-minded
    • Practicing responsible participation
    • Having grit

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/ADD, disability, EAP, etc. - varies by country)

About Mozilla

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. We’re not a normal tech company. The things we create prioritize people and their privacy over profits. We exist to make the internet a healthier, happier place for everyone

Commitment to diversity, equity and inclusion

Mozilla believes in the value of diverse creative practices and forms of knowledge, and knows diversity, equity and inclusion 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 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

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About the job

Apply before

Jan 18, 2024

Posted on

Nov 19, 2023

Job type

Full Time

Experience level


Location requirements

Open to candidates from all countries.

Hiring timezones


About Mozilla

Learn more about Mozilla and their company culture.

View company profile
A lot of companies say they’re “mission-driven.” Our unique corporate structure guarantees that every decision we make upholds our mission: to ensure the internet remains open and accessible. Beholden to neither shareholders nor investors, Mozilla Corporation is wholly owned by the not-for-profit Mozilla Foundation.

Along with our communities of 20,000+ contributors and collaborators, Mozilla Corporation’s staff designs, builds, and distributes software that allows people to enjoy the internet on their own terms. Our flagship product — the Firefox browser — has expanded into a family of products that protects users and alerts them of risks. Mozilla’s Emerging Technologies group incubated and sponsors Rust — Stack Overflow’s “most loved programming language” for the last four years — and is building safe, private versions of virtual reality, internet of things, and voice recognition.

By maintaining a safe, open internet we're helping humanity, 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.

Employee benefits

Learn about the employee benefits and perks provided at Mozilla.

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Co-working space budget

Reimbursement for coworking space, if that’s how you roll.

Learning and development budget

Reimbursement for professional development (up to $3,000/year)

Retirement benefits

Retirement Plan contributions (or social program contributions by jurisdiction)

Healthcare benefits

Generous medical, dental and vision coverage for you and your family (including no payroll deductions in most countries)

View Mozilla's employee benefits
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Founded in


Chief executive officer

Mitchell Baker

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