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 $125 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. The AI Products Data Science team is a full-stack, product-driven unit at the heart of Wealthsimple’s innovation. We own the end-to-end AI lifecycle: from model architecture and data pipelines to designing experiments that drive real-world impact for over 4 million Canadians.

We are looking for a Senior Data Scientist who thrives at the intersection of AI research and product development. In this collaborative role, you will transform technical breakthroughs into seamless product experiences, ensuring that every model we ship moves the needle for our business.

Lead the full AI product lifecycle: from identifying user pain points and defining KPIs to training foundation models and measuring real-world impact. Design and execute rigorous experiments (A/B tests, causal inference) to validate current AI features and drive product optimizations. Partner with Product Managers, Designers, and Engineers to translate business goals into a technical AI roadmap, ensuring our model development stays aligned with user needs and technical feasibility.





Build and maintain production-grade training pipelines and evaluation harnesses using reproducible, well-tested code. comfortable communicating technical findings to cross-functional partners (PMs, designers, engineers) to drive alignment.

Experience designing, training, and shipping production AI models, with depth in transformer architectures and LLMs. Solid fundamentals (attention, tokenization, embeddings, regularization) and failure mode analysis.

Bonus: ~ open-source contributions or publications in AI. 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 Employee resource groups, including Rainbow (2SLGBTQ), Women of WS, and Black at WS Technology & Innovation at Wealthsimple: 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.

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. If you have questions about how your data is used, reach out to us. #

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