Staff Design Engineer shaping Thunderbolt, Mozilla’s open-source AI client for enterprise organizations. Building prototypes, front-end experiences, and trusted AI workflows from concept through production.
Responsibilities
Build functional prototypes and product experiments directly in the Thunderbolt codebase
Translate ambiguous product ideas, user workflows, partner feedback, and enterprise needs into clear, usable product experiences
Define interaction patterns for AI-powered chat, search, research, workflow automation, knowledge retrieval, and enterprise administration
Use AI-assisted development tools to accelerate prototyping and implementation while maintaining quality, usability, security, accessibility, and maintainability
Partner with product, design, engineering, and enterprise-facing teams to explore, validate, and refine product direction
Contribute production-quality front-end code where appropriate
Determine whether prototypes should be discarded, refined, generalized, or productionized
Improve the usability, accessibility, consistency, and polish of the Thunderbolt user experience
Develop reusable components, interface patterns, or design-system elements
Bring a user-centered perspective to technical and product discussions involving AI behavior, trust, transparency, permissions, and workflow clarity
Consider enterprise needs including data sensitivity, user control, administrative visibility, auditability, and security expectations
Contribute to a product culture valuing experimentation, maintainability, responsible AI use, and thoughtful user experience
Requirements
10+ years of relevant experience in design engineering, front-end engineering, UX engineering, product design with strong technical implementation experience, or a closely related role
Demonstrated leadership and impact beyond individual deliverables
Strong front-end engineering skills with modern JavaScript or TypeScript and component-based frameworks
Experience building prototypes or production features directly in an application codebase
Strong product and interaction design judgment, including usability, accessibility, information architecture, workflow design, and product polish
Experience designing, prototyping, or building AI-enabled product experiences such as chat, search, research tools, agents, automation, knowledge interfaces, or workflow tools
Experience translating ambiguous product concepts into usable workflows, prototypes, and shipped product experiences
Experience providing technical or product leadership through mentoring, cross-functional coordination, reusable patterns, project ownership, or influence beyond individual deliverables
Practical awareness of AI, privacy, security, and regulatory considerations, including transparency, user control, permissions, data handling, and trust
Familiarity with frameworks such as the EU AI Act, Cyber Resilience Act, HIPAA, or comparable requirements
Strong communication and collaboration skills
Portfolio, case studies, shipped work, or examples demonstrating design-to-code execution, interactive prototypes, or product experience improvements
Bonus: experience with enterprise software, developer tools, productivity tools, collaboration tools, self-hosted software, design systems, component libraries, user research, usability testing, open-source, or highly collaborative engineering environments
Applicants must reside in and have permanent work authorization for the specified country locations; visa sponsorship is not provided
Benefits
Fully remote work & schedule flexibility
Company-provided laptop
Annual bonus program
Monthly remote work stipend
Annual professional development stipend
Access to Coursera learning platform
Industry conferences
Company all-hands and team gatherings
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
Design Engineer building polished developer - tool experiences for WorkOS, which provides enterprise authentication and identity APIs. Prototyping, shipping production UI, and improving the WorkDS design system across products.
Mechanical Engineering Lead leading design, procurement and commissioning readiness for Fusion Fuel Cycles’ fusion fuel cycle systems in Ottawa. Coordinating vendors, contractors and multidisciplinary engineering teams.
Mechanical Engineer designing pump and piping systems for EXP’s infrastructure and transportation projects. Leading QA/QC, technical documentation, site reviews, and mentoring for project teams.
Mechanical Engineer Project Manager designing and managing building mechanical systems for TCG, a multidisciplinary consulting firm. Leading project execution, quality, client relationships, construction administration, and mechanical team growth.
Mechanical Project Manager overseeing HVAC, plumbing, and fire - protection building - services projects for a multidisciplinary consulting firm. Managing deliverables, budgets, schedules, construction administration, and project teams.
Ingénieure mécanique concevant des systèmes de tuyauterie et équipements pour centrales hydroélectriques chez EXP. Coordination multidisciplinaire, suivi de chantier et soutien technique aux équipes de projet.
Field Service Mechanical Engineer maintaining turbomachinery for Baker Hughes energy customers. Leading installation, commissioning, inspections, troubleshooting, and overhauls at customer sites.
Biomechanical Engineer investigating injury biomechanics and accident reconstruction for J.S. Held, a global consulting firm. Managing projects, expert testimony, technical reporting, and client business development across the USA or Canada.
Ingénieur civil concevant ponts et ouvrages d’art pour Norda Stelo, entreprise québécoise de génie - conseil. Supervision des conceptions, travaux de construction, devis et estimations de coûts.
Senior Mechanical Engineer joining Wood's Mining & Minerals team in Saskatoon, Canada. Leading technical design and providing expertise in potash and uranium plant projects.