Senior Software Developer, Post-Trade Management

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.

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.

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.

• 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

• 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

• 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

• Experience in a regulated or compliance-sensitive engineering environment

• When you see a problem you fix it, instead of leaving it for someone else to find.

• You are curious about how things work and ask questions consistently to super-charge your growth.

• You share what you know and prioritize making the team around you better through pairing and code reviews.

• You dive deep into the unknown and build context quickly across teams and systems.

• You get the details right because you understand how small errors compound.

🌸 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.

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 do expect curiosity and a willingness to evolve alongside the products we're building.

Inclusion Statement: We're building products for a diverse world, and we need a diverse team to do it well. We strongly encourage applications from everyone, regardless of race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability status.

Accessibility Statement: We're committed to an accessible hiring experience. If you need any accommodations throughout the interview process, please let us know — we'll work with you to make sure you have what you need. We also welcome any feedback on how we can better accommodate candidates with accessibility needs.

AI in Hiring: We may use artificial intelligence (AI) tools to support parts of our hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our team but don't replace human judgment – all final hiring decisions are made by people. If you have questions about how your data is used, reach out to us.