Senior Software Developer, Complex Accounts

The Complex Accounts team builds the accounts that don't fit a standard mould. We own how businesses, from sole proprietorships to corporations with layered ownership, open and manage their accounts with Wealthsimple, along with joint accounts and registered education savings plans (RESPs). As we expand into more account types, the list keeps growing. It's work where accuracy, security, and regulatory requirements are non-negotiable, and we partner closely with operations, compliance, design, and product to make complicated financial structures feel simple for the people using them.

We’re part of Data & Engineering, where quality, security, and scalability are the standard, not trade-offs.

• Build and evolve the systems that let businesses, joint owners, and families open and manage accounts with Wealthsimple
• Design data models for complex ownership — corporations, co-owners, and the people behind them
• Work with compliance and operations partners to turn regulatory requirements into reliable, well-tested software
• Improve the account opening experience across mobile and web, removing friction wherever clients get stuck
• Build tools that help our operations teams serve clients faster and handle unusual cases on their own
• Share on-call responsibilities and fix the root causes of recurring issues
• Use AI tools as a core part of how you build, and help shape how the team works with them
• Raise the technical bar through design reviews, code review, documentation, and mentorship

• 5+ years of professional software development, with depth in back-end systems and a track record of shipping production systems that clients and teams depend on
• Full-stack experience: you’re as comfortable contributing to a client-facing flow on web or mobile as you are to the services running underneath it
• Experience modelling complex domains and designing systems that handle sensitive data, including authentication, fine-grained authorization, and auditability
• A track record of shipping in a regulated domain alongside compliance or operations partners
• An AI-first development workflow that doesn’t compromise on rigour: you use agentic tools day to day and know how to verify their output before it reaches production
• Clear communication: you can explain a technical trade-off to engineers, compliance partners, and leadership alike