User Interface / Visual Designer

User Interface / Visual Designer at Mozilla

MZLA Technologies Corporation (MZLA) is a wholly owned, for-profit subsidiary of the Mozilla Foundation, home to Thunderbird, our flagship open-source email and productivity platform empowering over 20 million people globally. While part of the Mozilla portfolio, MZLA operates independently, transparently, and in collaboration with a global community of contributors, reflecting our commitment to building technology that prioritizes users and data privacy.

MZLA is a growing team of 50+ people distributed across seven countries. As we evolve Thunderbird into a suite of privacy-respecting productivity tools, we’re introducing new products and services independent of big tech ecosystems. Our unique revenue model combines community donations with subscriptions for new cloud-based services, enabling growth while remaining true to our values. Learn more at www.thunderbird.net.

The Opportunity

As a User Interface / Visual Designer, you will play a crucial role in shaping and refining the visual language across our desktop, web, and mobile platforms. You will create cohesive, accessible, and visually compelling interfaces that express our brand and support intuitive user interaction. Joining the Design team, you’ll work across Thunderbird and MZLA to deliver high-quality, user-focused experiences.

You will collaborate closely with design and front-end development teams, guiding projects from concept to delivery. This involves translating requirements into layouts, design systems, components, and production-ready assets. Success in this role demands strong visual craft, a commitment to accessibility and consistency, and a proven track record of accountability, follow-through, and thoughtful problem-solving, all while comfortably driving work forward with team support.

You will deliver polished, intuitive experiences for our global user community and independently own medium-sized projects. This is a full-time, remote position, requiring collaboration with colleagues across multiple regions and time zones.

What You’ll Do

• Create and refine high-fidelity layouts and UI components.
• Build interactive prototypes, starting from low-fidelity wireframes when necessary.
• Deliver visually appealing, accessible interfaces aligned with user needs and brand guidelines.
• Translate designs into implementation-ready specifications and assets.
• Account for responsive behavior, typography, color contrast, spacing, and accessibility across platforms.
• Work within and contribute to design systems, component libraries, and style guides.
• Apply information hierarchy, layout, and interaction design principles to create clear, readable interfaces.
• Identify and articulate visual design issues, extract insights from feedback, and propose design solutions in collaboration with cross-functional partners.
• Support UX research activities by preparing visual assets, participating in studies, and applying research findings to visual and interaction details.
• Engage with the open-source community to gather feedback and foster collaboration.
• Support ad hoc projects as required.

What You’ll Bring

• 3+ years of professional experience in user interface / visual design or a closely related role, with increasing responsibility and a proven ability to scope and finish projects.
• A strong portfolio demonstrating high-fidelity layouts, UI components, and prototypes for web, desktop, and/or mobile products, with clear design rationale and impact.
• Experience working on multi-platform products and contributing to scalable design systems, component libraries, and style guides.
• Familiarity with accessibility standards (e.g., color contrast, typography, motion) and applying them to create inclusive, usable interfaces.
• Bachelor’s degree or equivalent experience in design, visual communication, human–computer interaction, or a related field; additional coursework or training in UI, visual, or interaction design is a plus.
• Excellent written and verbal communication skills, with experience collaborating on a multi-disciplinary, geographically distributed team.
• A strong commitment to collaboration, openness, and respect for diverse perspectives; experience engaging with open-source or other community-driven feedback loops is a plus.

Bonus Points For

• Ability to design clear, cohesive icons and icon sets that align with the product’s brand and system.
• Experience creating 2D illustrations (such as empty states and onboarding) to support the interface.
• Experience producing on-brand marketing assets for digital and print, including social graphics, newsletters, and campaign materials.
• Comfort writing or refining short in-product copy to keep interfaces clear and engaging.
• A passion for user research and evidence-based design choices.
• Familiarity with Agile and Lean Startup methodologies.

Work Environment

You’ll work with our passionate staff and open-source community members from all over the globe to support the mission and objectives of MZLA Technologies Corporation. This is a remote full-time position. Strong communication and documentation skills are essential for effective collaboration across time zones and disciplines.

What You’ll Get

We benchmark our base salaries to local markets and target the 60th percentile of the peer market. The salary range for this role in Canada is $72,000 - 82,000 CAD annually. We may consider candidates with strong skills but less than the required experience, with title, level, and compensation determined based on qualifications.

In addition to competitive salaries, we offer a comprehensive benefits package designed to support your whole self, including:

• Work & Career
  • Fully remote work & schedule flexibility
  • Latest Laptop
  • Discretionary Annual Bonus Program
  • Monthly Remote Work Stipend
  • Annual Professional Development Stipend
  • Access to Udemy Learning Platform
  • Industry Conferences
  • Company All Hands
• Rest & Play
  • 24 days PTO per year (prorated)
  • Your Birthday
  • Year-end Company Shutdown
  • 9 Wellbeing Days
  • Public Holidays
  • Other Paid Leave
  • Quarterly Wellbeing Stipend for Personal / Family Activities
• Health & Family
  • RRSP Contributions
  • Health, Dental, & Vision Insurance
  • Disability Insurance
  • Life Insurance
  • Employee Assistance Program
  • Paid Parental Leave
  • Paid Sick Days
• Work Eligibility

  Applicants must reside in and have permanent work authorization for the country location(s) specified in the posting (Canada). We are unable to consider applicants outside of these markets and do not provide visa sponsorship.

• How To Apply

  Please apply directly through our career page. We carefully review every cover letter and screening question, so take the time to answer each fully. We value authenticity and want to hear your perspective, not a bot’s. While it's fine to use AI to polish writing, unoriginal AI-generated answers will lead to disqualification.

• MZLA Technologies Corporation (MZLA) Commitment to Diversity, Equity and Inclusion

  MZLA believes in the value of diverse creative practices and forms of knowledge, recognizing that diversity, equity, and inclusion are crucial to enriching the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as women, racialized and Indigenous persons, persons with disabilities, and persons of all sexual orientations, gender identities, and expressions.

  We are an equal opportunity employer and do not discriminate on the basis of race, religion, gender, gender identity, color, national origin, pregnancy, disability, sexual orientation, age, genetic predisposition, marital status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment. We ensure qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process; contact hiringaccommodations@thunderbird.net to request accommodations.

Key skills/competency

• UI Design
• Visual Design
• Interaction Design
• Design Systems
• Prototyping
• Accessibility (A11y)
• User Experience (UX)
• Multi-platform Design
• Front-end Collaboration
• Information Architecture