Senior Data Scientist, AI Products

🕒 July 3

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Wealthsimple

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2014

💼 Consulting

🛡️ Insurance

💳 Fintech

🔥 Funding within the last year

💰 $393M Series E - Wealthsimple on 2025-10

Consulting • Insurance • Fintech

Wealthsimple is a Canadian financial technology company that provides consumer banking, investing, and wealth management services. It offers chequing accounts, savings, credit cards, self-directed trading (stocks, ETFs, options), cryptocurrency trading, managed portfolios, tax services, and advisory wealth management for high-net-worth clients. Wealthsimple combines digital-first banking and low-fee investing products aimed at retail customers, along with tools and educational content to support personal finance.

📋 Description

• 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 new 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. • Analyze production feedback and user interactions to iteratively refine models and maximize value. • Foster a collaborative culture: mentor teammates, simplify complex problems, and drive iterative, high-impact delivery.

🎯 Requirements

• Deep product sense: define success metrics, translate vague business objectives into measurable hypotheses, and measure product impact through A/B testing and causal inference. • Experience with product analytics to derive actionable insights that inform product roadmaps. • Proven track record of converting model outputs into business outcomes; 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. • Familiarity with fine-tuning (LoRA, adapters), knowledge distillation, quantization, and instruction tuning.

🏖️ Benefits

• 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