161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Principal Associate Data Scientist, Machine Learning For 30 years, we’ve been on a mission to change banking for good and build relationships by making credit accessible, straightforward, intuitive and rewarding. We want to help Canadians succeed with credit, because we believe in people — in our customers, in our associates, and in talent like you!

At Capital

One, data is at the center of everything we do. When we launched as a startup we disrupted the credit card industry by individually personalizing every credit card offer using statistical modeling and the relational database, cutting edge technology in 1988! Fast-forward a few years, and this little innovation and our passion for data has skyrocketed us to a Fortune 100 company and a leader in the world of data-driven decision-making.

As a Machine Learning Data Scientist at Capital One, you’ll be part of a team that’s leading the next wave of disruption at a whole new scale, using the latest in distributed computing technologies and operating across billions and billions of customer transactions to build cutting edge models and unlock the big opportunities that help everyday people save money, time, and agony in their financial lives. Writing software to extract, clean, and investigate large, messy data sets of numerical and textual data Building, deploying, and maintaining machine learning models (Gradient Boosting Machines, Neural Networks, etc.) from development, validation, through to deployment in production Developing and optimization model development pipelines that enable rapid experimentation and optimization Investigating the impact of new technologies, data sources, and methodologies in order to remain on the cutting edge of data science. You know Python and are constantly exploring new open source tools, and hitting up AI agents on a regular basis.

A Wrangler: You know how to programmatically extract data from various databases and APIs,



bring it through a transformation or two, and leverage it to improve your model’s accuracy.

Creative: Big, undefined problems and petabytes of data don’t frighten you. You’re used to working with abstract data, and you love discovering new narratives in unmined territories.

Proactive: You want to share your knowledge with your peers and contribute back to inner/open source projects which you might consume. You have expertise in key aspects of model development, model deployment, or inference such that you are the go-to person in those areas.

An Emerging Leader: You feel comfortable running point on big, complex projects. You can paint a compelling picture of your recommendations and manage the message toward both technical and non-technical audiences. At least 3 years of experience in open source programming languages for modeling (Python or R) At least 3 years of experience with version control system like GitHub At least 3 years of experience with machine learning or predictive modeling (H2O, XGBoost, TensorFlow, etc...) At least 3 years of experience with SQL Bachelor’s Degree in a quantitative field or Master’s Degree or PhD Experience working with AWS (EC2, S3, Lambda, RDS, etc.) Experience writing unit tests and integrating with CICD tools (Jenkins, CircleCI, etc.) AI agent power user At least 5 years’ experience in Python or R At least 5 years’ experience with machine learning / predictive modeling (H2O, XGBoost, TensorFlow, etc.) At least 5 years’ experience with SQL Experience with financial data Enjoy a hybrid work environment, with 3 days in the office.





Build a comfortable workspace with our one-time, Work From Home allowance and enjoy our head office located conveniently across the street from Union Station. Receive support for you and those who are most important to you, with full coverage for spouses, domestic partners, and dependents. With up to $3000 in mental health coverage and up to $5000 in tuition subsidies per year—and much more—you’ll discover that Capital One is committed to helping you live your best life.

This role is also eligible to earn performance based incentive compensation, which may include cash bonus(es). Weembrace the responsible use of artificial intelligence (AI) to enhance the candidate experience and streamline our recruitment processes. However, no hiring decisions are made using AI as every hiring decision is made by our hiring managers, business interviewers, and recruitment professionals.

Our teams are equipped with training that empowers them to use AI responsibly. We may, for certain purposes, render a decision based exclusively on automated processing of your personal information as a part of the candidate screening process. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at 1-(phone hidden) or via email at [email protected] technical support or questions about Capital One's recruiting process, please send an email to [email protected] One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.

Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (

📌 Principal Associate Data Scientist, Machine Learning (Toronto)
🏢 Capital One - Canada
📍 Toronto