Senior Frontend Engineer owning Spare’s Nutshell design system and accessible React interfaces. Building operational transit software used by agencies worldwide.
Responsibilities
Own and extend Nutshell, including design tokens, shared components, and reusable patterns
Refactor existing frontend systems and establish UI foundations for emerging products
Shape the system so engineers and AI agents produce accessible, consistent UI by default
Address undefined design details such as empty states, keyboard behavior, and screens under operational load
Enable adoption through documentation, feedback, and occasional workshops
Collaborate with developers, product managers, designers, customers, and other development teams
Make technical and design decisions from discovery through shipped solutions
Requirements
Track record of building data-dense, complex operational interfaces
Deep knowledge of React, TypeScript, modern CSS, and component API design
Experience getting a design system or shared component library adopted by other engineers
Ability to work across the stack, with frontend as the specialty
Curiosity about AI-assisted development and current experimentation with AI tools
Clear communication with design and product teams
Ability to write effective documentation
High standards, proactive communication, and strong ownership
Typically 5+ years of experience
Experience in transit, mobility, or logistics is nice to have
Experience at a high-growth startup is nice to have
Comfort working in design tooling with designers is nice to have
Experience coaching other engineers is nice to have
Legally authorized to work in Canada
Able to commit to working in downtown Vancouver on Monday, Wednesday, and Friday
Benefits
Equity options
Work on challenging technical problems with real-world impact in the transportation industry
Fast-paced, high-impact role in a rapidly growing startup
Opportunity to take ownership of core systems and drive innovation
Dynamic, collaborative, and supportive team culture
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