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. The Data Science & Engineering (DSE) team consists of analytics engineers, data scientists, and software engineers and is responsible for enabling data-driven decision making and building data products at Wealthsimple. The Growth Data focuses on driving new user acquisition and net deposit targets through marketing efforts including paid, organic, and branding initiatives. Our team is structured around key domain areas including promotions, referral and social sharing, paid marketing, and organic/upper funnel marketing measurement. We work closely with cross-functional partners in Growth, Product, and Engineering to optimize our marketing investments and scale Wealthsimple's customer base. The Growth Data team plays a critical role in enabling data-driven decision making across all marketing channels. We're looking for a Senior Data Scientist who will serve as a domain expert for one of our key marketing pillars, driving optimization through sophisticated algorithms, measurement systems, and strategic insights that influence millions of dollars in marketing spend. In this role, you'll be the DRI (Directly Responsible Individual) for your domain area, building data products and analytics solutions that directly impact business outcomes.



You'll collaborate closely with marketing stakeholders to understand business needs and translate them into technical solutions, while also partnering with data engineers and other data scientists on shared infrastructure. This is a full-stack data science role where you'll wear many hats: algorithm developer, measurement strategist, analyst, experimenter, and business partner. Build data products and algorithms that optimize marketing performance—including budget allocation, targeting strategies, and campaign optimization across multiple channels Drive marketing strategy through data insights, A/B testing, and causal inference methodologies to maximize ROI on marketing spend Develop and maintain analytics pipelines and data infrastructure, working collaboratively with data engineers and other data scientists Conduct exploratory analysis to identify growth opportunities, understand customer behaviour, and optimize marketing tactics Leverage AI tooling to handle operational tasks efficiently and focus your expertise on high-impact strategic problems and internal engineering teams to ensure robust tracking, data integration, and measurement capabilities Take ownership and ship it—continuously look for the simplest, most effective way to approach challenges; Work where you are (while our Canadian offices are located in Toronto, we are a remote-first workforce and you can join from anywhere in Canada)



Understanding of digital marketing mechanics including attribution, ad platforms, tracking, and conversion optimization Experience working with lifecycle data, understands various of ways of reaching out to current/existing customers and how they fit together holistically Strong technical skills in Python and SQL with experience building production-quality code Proven track record in algorithm development, optimization problems, or building data-driven decision systems Strong foundation in causal inference, A/B testing, and experimental design Excellent communication skills and ability to translate complex technical concepts for non-technical stakeholders Demonstrated ownership as the data DRI on complex projects end to end, with proactive understanding of business context and how cross-functional teams build systems together Can use AI effectively to increase efficiency and depth of the work, while still providing the strategic guidance and critical thinking Has full-stack data science experience, comfortable with everything from dashboards and reporting to sophisticated algorithm development Thrives in a collaborative, multi-faceted environment with ongoing alignment across stakeholders and data team members Ideally has worked at larger-scale tech companies that develop internal analytics and optimization systems Diverse technical challenges: Develop expertise across measurement, A/B testing, causal inference, machine learning, and algorithm development AI-enabled efficiency: Leverage cutting-edge AI tooling to amplify your impact and focus on the most strategic challenges Top-tier health benefits and life insurance Long-term group savings with employer match, through Wealthsimple for Business 20 vacation days, 4 wellness

📌 Data Scientist Senior (Canada)
🏢 Wealthsimple Technologies
📍 Canada