Wealthsimple

Senior Software Developer, Financial Risk

Remote (Canada) · Senior

Sponsorship not specifiedDetected 64 days ago

RubyKotlinReactReact NativeRailsData Engineering

About the role

Financial risk sits at the heart of what makes Wealthsimple trustworthy.
The Financial Risk engineering team is responsible for the systems that protect our clients and our platform - from fraud detection to AML compliance to the client experience when things go wrong.
It's technically complex, genuinely consequential work, and the team is growing to meet it.

Build something people love
you'll collaborate with incredibly talented, curious, and driven teammates who are deeply committed to doing great work.
Design and build fraud detection systems that protect clients and Wealthsimple from bad actors - across transaction monitoring, account behaviour, and beyond
Own the client-facing experience for accounts affected by fraud restrictions, including self-serve resolution flows that get clients back on track as quickly and frictionlessly as possible
Build and improve internal tooling that helps our operations team investigate and resolve fraud cases efficiently
Develop risk-based product features - such as dynamic transaction limits - that reflect a client's actual risk profile

4+ years of software engineering experience, ideally in a consumer-facing product environment
Comfort across the stack - you're as comfortable contributing to a client-facing flow as you are to the systems running underneath it
experience with Ruby on Rails or Kotlin is a strong asset
You have already evolved your workflow through AI and are eager to continue innovating.
Strong backend engineering skills, with a track record of building reliable, scalable systems
Experience working on fraud detection, financial risk, or other high-stakes technical domains
Comfort across the stack - you're as comfortable contributing to a client-facing flow as you are to the systems running underneath it; experience with Ruby on Rails or Kotlin is a strong asset

Experience with Apache Flink or other stream processing frameworks
Familiarity with real-time data pipelines and event-driven architecture
Experience with React Native
Experience with Temporal for workflow orchestration
Hands-on experience with AI-assisted development tools such as Claude Code or Cursor, including agentic workflows and MCP integrations
Background in fintech, banking, or another regulated industry
You take ownership end-to-end - from writing the code to making sure it works in production
You're comfortable with ambiguity and operate well in a domain where the rules are real but the problems are rarely clean

🌴 20 vacation days, 4 wellness days, and unlimited sick and mental health days per year

We build the products and infrastructure that millions of Canadians trust with their financial lives.
Data & Engineering at Wealthsimple spans everything from the client-facing apps to the systems running underneath them - and we hold ourselves to a high bar on both.
The company was founded in 2014 by a team of financial experts and technology entrepreneurs, and is headquartered in Toronto, Canada.
Read our Culture Manual and learn more about how we work.

This listing is sourced directly from Wealthsimple's careers page and normalized into a canonical job model.