Senior Software Developer, Bank & Brokerage Linking

BUILD SOMETHING PEOPLE LOVE Wealthsimple is Canada’s leading financial innovator. The company offers a full suite of simple, sophisticated financial products across managed investing, do-it-yourself trading, cryptocurrency, tax filing, spending and saving. Wealthsimple currently serves more than 4 million Canadians and holds over $155 billion in assets under administration. The company was founded in 2014 by a team of financial experts and technology entrepreneurs, and is headquartered in Toronto, Canada. We're proud of what we've built — and we're just getting started. Read our Culture Manual https://www.wealthsimple.com/en-ca/culture and learn more about how we work https://www.wealthsimple.com/en-ca/careers. ABOUT THE TEAM This team builds and maintains the connections that bring external financial data into Wealthsimple. These connections power Transfers, Net Worth, Switch-your-Bank, and other core Wealthsimple experiences. We’re looking for developers who will define how Wealthsimple will integrate with Open Banking in Canada, and how Wealthsimple will bridge our data acquisition from API integrations and scraping to Open Banking solutions. The work involves collaborating with a broad set of product teams on bank account linking, iterating on different data acquisition methods, and working with product, design, data science, data security, and other engineers and managers to help users make Wealthsimple their financial home IN THIS ROLE, YOU'LL HAVE THE OPPORTUNITY TO: - Experience cutting edge AI use for software development (team-specific Claude plugins, agentic development, LLM integrations that redact sensitive information without degrading functionality) - Build and maintain connections to banks and brokerages in Canada through scraping, custom flows, and direct APIs, transitioning from first and third party aggregators to Open Banking endpoints - Design systems that degrade gracefully without impacting the user experience - Work with product, security, infrastructure, and SRE teams to deliver accurate balances, holdings, and transactions to clients OUR TECHNOLOGIES: - Node.js and MongoDB services for scraping and acquisition - Headless browsers, proxy systems, and session-management tools - Ruby, Java/Kotlin, and Python across the broader platform - AWS Infra - Strong encryption and security practices for sensitive data - Early AI-assisted automation that helps generate, maintain, and repair extraction logic WHAT YOU BRING: - Strong computer science fundamentals, industry experience, and a history of designing systems at scale - Strong experience using AI tools for software development, learning, and sharing ideas - Clear communication with a broad range of cross-functional partners NICE-TO-HAVE'S: - Experience with data acquisition or financial connectivity platforms (e.g., Plaid-style APIs, Flinks-style screen scraping, SnapTrade-style brokerage linking) - Experience working on financial data models, reconciliation, or ledger-like systems - Understanding of authentication flows, MFA challenges, cookies, sessions, and rate limits WHY WEALTHSIMPLE? 🌸 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 🌎 We are a hybrid team with over 1,500 employees across North America. The people are one of the best parts of working here: you'll collaborate with incredibly talented, curious, and driven teammates who are deeply committed to doing great work. ICYMI Technology & Innovation at Wealthsimple: We move quickly and build thoughtfully. That means we're always looking for better ways to work — whether that's new tools, AI, or rethinking how we approach a problem. We don't expect you to have all the answers, but we…