Senior Software Developer – Quality, Developer Tooling

🕒 May 29

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Wealthsimple

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2014

💳 Fintech

🏦 Banking

💸 Finance

🔥 Funding within the last year

💰 $393M Series E - Wealthsimple on 2025-10

Fintech • Banking • Finance

Wealthsimple is a Canadian financial technology company that provides consumer banking, investing, and wealth management services. It offers chequing accounts, savings, credit cards, self-directed trading (stocks, ETFs, options), cryptocurrency trading, managed portfolios, tax services, and advisory wealth management for high-net-worth clients. Wealthsimple combines digital-first banking and low-fee investing products aimed at retail customers, along with tools and educational content to support personal finance.

📋 Description

• 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