Frontend Senior Software Engineer building complex UI systems and tools for Kabam’s multiplayer games. Supporting performance, scalability, and artist and designer workflows on an unannounced project.
About the role
- Senior Software Developer focusing on quality and developer tooling for fintech company Wealthsimple. Collaborating on internal developer automation and application-level quality tools.
Responsibilities
- Own the application-level quality and tooling layer of our platform
- Build end-to-end test infrastructure, SDK instrumentation, and developer automation
- Architect and own CAP's e2e test suite across web and React Native mobile
- Instrument our Account-Opening SDK with analytics events and structured logging
- Own and evolve CAP's staging and production test account tooling
- Build internal tools and automation to cut manual operational work across the CAP domain
- Drive shift-left quality practices with mutation testing and CI gates
Requirements
- Demonstrated experience building developer tooling, test frameworks, or internal platforms. Not just using them; you've designed and owned the systems themselves
- Strong proficiency in TypeScript/JavaScript with hands-on experience in React and/or React Native contexts, particularly building shared libraries, SDKs, or instrumentation rather than product UIs
- Backend development experience (Ruby, Python, Go, or equivalent) and comfort working across APIs, databases, and service-layer code
- A quality engineering mindset. You think about testability, observability, and reliability from the start, not as an afterthought
- An AI-native approach to your craft. You use agentic coding tools as a core part of your workflow, not a novelty, and have a genuine track record of using them to move faster and smarter on the problems they're well-suited for
- Nice to have: experience designing and implementing end-to-end or integration test frameworks across web and mobile
- Nice to have:experience instrumenting frontend SDKs with analytics or observability tooling, or building analytics event pipelines
Benefits
- Top-tier health benefits and life insurance
- Long-term group savings with employer match, through Wealthsimple for Business
- 20 vacation days, 4 wellness days, and unlimited sick and mental health days per year
- 90 days away: work outside Canada for up to 90 days per year
- Employee resource groups, including Rainbow (2SLGBTQ), Women of WS, and Black at WS
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