Front - End Developer at CoLab creating responsive UI features using React and TypeScript for engineering teams. Collaborating with design and product teams to enhance user engagement with complex data.
About the role
- Senior Frontend Developer creating innovative software interfaces that deliver industry intelligence at Lumerate. Focused on modern React and maintaining the internal design system while optimizing developer experience.
Responsibilities
- Frontend architecture — React component patterns, state management strategy, styling conventions, and build tooling within a Rails monolith
- Component library (LDS) — maintaining and extending our internal design system built on Supernova design tokens and SCSS
- Migration strategy — incrementally moving legacy code to modern React without large rewrites
- Testing strategy — a three-tier JS testing approach using Jest + React Testing Library and Playwright
- Frontend standards — defining and enforcing patterns for component architecture, styling, data fetching, and code organization
- Developer experience — Storybook, module aliases, build performance, and tooling to help the team ship faster
Requirements
- 5+ years with React in production
- Experience working within a server-rendered framework (Rails, Django, Laravel, or similar)
- Strong CSS/SCSS skills
- Testing expertise — Jest, React Testing Library, and ideally Playwright or Cypress
- JavaScript fundamentals — ES modules, async/await, Proxy, private class methods, build tooling (Webpack/Vite)
Benefits
- Three weeks paid vacation + paid statutory holidays
- Earn additional paid vacation days with continued learning ($1000 annual stipend for courses and classes)
- Basic and extended health and dental benefits
- Paid and topped-up maternal and parental leave
- Upgrade your home office setup with our remote or hybrid stipend
- Join us for our annual all-company retreat (past destinations include Bermuda, Iceland, Costa Rica, and Portugal)
- Employee Giving Program (you choose the causes and the company provides the funds)
- Help shape the future of a bootstrapped and profitable Canadian tech company
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