Senior Software Developer, Post-Trade Management

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 and learn more about how we work .

About the role

As a Senior Software Developer on the Post-Trade Management team, you will design and deliver the software that keeps post-trade processing running smoothly: from clearing and settlement to inventory reconciliation across each of the 8 (and counting!) external depositories we work with. Every time we launch a new product, our pipelines must expand to handle it so there’s no shortage of opportunities here.

Read on if you're an engineer who wants to deep dive into a complex domain and isn’t satisfied unless you understand exactly how everything works. This is your opportunity to leave your mark on a system that processes billions of dollars for millions of Canadians. This role reports to the Software Development Manager, Post-Trade Management.

About the team

Trades are just the beginning for the Post-Trade Management team! You won't find any of our code in our apps, but our work is vital to Wealthsimple’s success. As our company keeps growing, so does the volume and complexity of what we automate behind the scenes and our partners in Securities Operations rely on us to provide them with the tools to do their jobs efficiently.

We are a close-knit team of six developers who measure success as a collective, not as individuals. We collaborate to solve tough problems and challenge each other’s perspectives to come up with the best possible solution in any scenario. We see pair programming and working directly with our partners in Operations as invaluable aspects of our success.

You will have the opportunity to

Design and deliver post-trade automations across depositories to support new and existing products

Contribute to technical design decisions that shape the future of our post-trade processing pipeline

Mentor other developers through pairing, code review, and in-the-moment feedback

Use AI to accelerate development and explore new ideas as part of how the team builds day-to-day

Partner closely with Securities Operations, Product Management, and other engineering teams to understand the why behind what we’re building, not just the what and the how

Skills you bring

Senior-level backend software development experience with a focus on Ruby on Rails

Experience designing and delivering complex automations or data pipelines in a production environment

Comfort working with high-stakes, high-accuracy systems where correctness and auditability matter

Experience mentoring other engineers through code review, pairing, or in-the-moment feedback

Strong communication skills and the ability to work directly with cross-functional partners like operations, product, and other engineering teams

Nice to have

Experience with Java or Kotlin; front-end frameworks like React; Oracle, Postgres, Kubernetes, or AWS infrastructure

Past FinTech experience, exposure to ledgers, brokerage, custody, clearing, or settlement systems