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Salary: CAD 120,000 - 145,000 / annual
Mejuri, a modern fine jewelry brand founded in 2015, is seeking a Senior Frontend Engineer to enhance its digital experience across web and mobile platforms. The company operates 58+ retail stores globally and serves customers through online, app, and in-store channels, with a commitment to responsible sourcing and sustainable practices.
In this role, you will play a critical part in building and maintaining performant, scalable web applications on Shopify and Hydrogen. You'll lead architectural decisions for frontend projects, refactor existing systems to raise code quality, and work closely with design, product, and backend teams to create seamless customer experiences. A key aspect of this position involves integrating AI coding tools into your daily workflow—using them strategically while maintaining strong engineering judgment about when to leverage them and when not to.
You'll contribute to customer-facing AI features including search, personalization, and content generation, helping evaluate output quality before shipping. You'll also build AI-assisted workflows and internal tooling that accelerate the wider team's productivity. Mentoring junior and intermediate developers, participating in code reviews, planning sessions, and retrospectives are core responsibilities.
The role is based in Toronto (60 Bloor Street W) with a hybrid arrangement: 3 days in office, 2 days remote. Mejuri offers a minimum of four weeks vacation plus personal days, comprehensive medical and dental benefits including mental health coverage, parental leave with up to 80% salary top-up, and a generous product discount. The company also offers the "Mejuri Passport" program, allowing eligible employees to work in other locations for one month per year.
REQUIREMENTS:
- 5+ years of frontend development experience with strong TypeScript/JavaScript expertise
- Deep React experience, including React Router v7 or equivalent modern routing frameworks
- Experience building and maintaining large-scale e-commerce applications
- Strong understanding of Shopify's ecosystem, particularly the Hydrogen framework
- Experience with headless commerce architectures
- Hands-on experience with AI coding assistants in production codebases, with a clear perspective on where they help and where they create risk
- Comfort writing effective prompts and context for AI tools, and reviewing AI-generated code with rigor
- Proficiency writing unit and integration tests
- Experience with GraphQL and REST APIs
- Experience with performance optimization and web vitals
- Strong UX/UI sensibilities and ability to collaborate closely with design
- Curiosity and willingness to learn about AI tools; openness to working alongside AI as part of daily work
ASSETS:
- React Native or mobile experience
- Exposure to agentic tooling or MCP-based integrations
- Experience shipping an AI-powered product feature end to end
- Familiarity with observability tooling (Honeycomb, Sentry, or similar)
- Experience with modern frontend tooling at scale (Git, NPM/Yarn, SCSS, ES6)
