About the role

Quantitative risk manager at Wealthsimple, Canada’s financial innovator, building brokerage VaR, stress-testing, and capital-impact models. Documenting methodologies and guiding margin, delinquency, and risk-reporting decisions.

Responsibilities

Own the development, testing, and ongoing maintenance of quantitative risk models, including VaR, SVaR, broad-based stress testing, and single-stock stress testing
Update models as market conditions and regulatory requirements evolve
Write and maintain clear methodology documentation for every model used in day-to-day stakeholder decisions
Apply knowledge of CIRO 5000 margin rules to model margin requirements and capital impacts under stressed conditions
Develop production-quality code across multiple programming languages to build, maintain, and improve model infrastructure
Work cross-functionally with margin, delinquency, and dynamic risk reporting teams to support risk-cognizant decision-making
Translate complex model outputs into clear, actionable guidance
Identify and proactively flag model performance issues, including inaccurate or non-meaningful outputs
Potentially lead a small team and be evaluated for a Senior Manager position depending on qualifications and skills

7 to 10 years of experience in a quantitative risk or quantitative analytics role within financial services
Preferably experience in a CIRO-regulated brokerage environment
Hands-on model development experience across VaR, SVaR, broad-based stress testing, and single-stock stress testing
Deep knowledge of markets, trading instruments, and valuation principles across equities, options, futures, and fixed income
Deep understanding of CIRO 5000 margin rules and ability to model margin requirements and capital impacts under stressed conditions
Expert-level proficiency in at least one quantitative programming language, such as Python or R, with demonstrated ability to develop production-quality code
Strong written communication skills and ability to produce clear methodology documentation for technical and non-technical audiences
Ability to work independently on complex technical problems and deliver under tight deadlines
Ability to lead a small team
Legally eligible to work in Canada
Direct experience building capital impact models using CIRO 5000 margin rules and 7–10 years of quantitative risk experience in a Canadian brokerage environment
Independently built and documented a VaR, SVaR, or stress testing model from scratch using production-quality Python or R

Top-tier health benefits and life insurance
Long-term group savings with employer match, through Wealthsimple for Business
20 vacation days
4 wellness days
Unlimited sick and mental health days per year
Work outside Canada for up to 90 days per year
Employee resource groups, including Rainbow (2SLGBTQ), Women of WS, and Black at WS
Collaboration with talented, curious, and driven teammates
Accessible hiring experience and accommodations throughout the interview process