Staff Designer

TL;DR

Staff Designer: Shaping connected experiences across desktop, web, and mobile products for an open-source email and productivity platform with an accent on experience frameworks and scalable design systems. Focus on user research, accessibility, and visual craft to drive user-centered thinking and design quality.

Location: Remote UK

Salary: £72,000 - £86,000 GBP

Company

MZLA Technologies Corporation (MZLA) is a wholly owned, for-profit subsidiary of the Mozilla Foundation and home to Thunderbird, our flagship open-source email and productivity platform empowering more than 20 million people around the world.

What you will do

• Lead complex, cross-team design initiatives from problem framing and discovery through shipped outcomes.
• Map end-to-end user journeys to identify system-level gaps and define scalable experience solutions.
• Shape experience frameworks, visual systems, and design standards that scale across platforms and teams.
• Translate research, analytics, and business context into clear recommendations, actionable plans, and long-term experience strategy.
• Lead and guide user research and usability testing efforts, synthesizing insights into practical product decisions.
• Mentor designers and influence cross-functional partners to strengthen user-centered thinking and design quality.

Requirements

• 10+ years of professional experience in user experience and interface design, including leadership of complex, multi-stakeholder initiatives.
• Demonstrated ability to operate strategically while delivering high-quality, hands-on design work.
• Experience creating and evolving scalable design systems and interaction patterns across web, desktop, and/or mobile platforms.
• Strong systems thinking, with the ability to connect journeys, architecture, and interface patterns into coherent experiences.
• Experience planning and conducting user research and usability testing, translating insights into product decisions.
• Excellent written and verbal communication skills, with comfort navigating ambiguity and driving clarity.

Nice to have

• Experience working in open-source or community-driven environments.
• Public representation of design through talks, writing, or community engagement.
• Fluency in multiple languages for collaboration across a global community.
• Comfort contributing to light front-end implementation or code-based prototypes.
• Deep empathy, with the ability to build trust, navigate conflict, and keep teams aligned under pressure

Culture & Benefits

• Fully remote work & schedule flexibility
• Discretionary Annual Bonus Program
• Annual Professional Development Stipend
• Health, Dental, & Vision Insurance
• 24 days PTO per year (prorated)
• Pension Contributions

Hiring process

• Apply directly through our career page.
• We carefully review every cover letter and screening question, so take the time to answer each fully.
• We also value authenticity.