Top Tech Jobs & Startup Jobs in Toronto

The Senior Data Scientist will influence Wealthsimple's crypto experience by leveraging data analysis, problem-solving skills, and strong collaboration with cross-functional teams to shape product strategy and improve customer engagement and retention.

As a Senior Analytics Developer in People Analytics, you'll design data pipelines, create employee records, and ensure data governance while collaborating with HR and Finance.

Lead end-to-end AI product development: define KPIs, design and train foundation/transformer models, run rigorous experiments (A/B, causal inference), build production training pipelines and evaluation harnesses, analyze feedback, and mentor teammates to translate models into measurable product impact.

Manage daily securities lending processes including loan/return settlement, reconciliations, discrepancy resolution, counterparty communication, billing/month-end, onboarding counterparties, and support for options and treasury cash movements.

Leads motion and product marketing design across Wealthsimple’s product launches, live events, app store presence, social content, and marketing surfaces. Translates product UI into polished animations, videos, prototypes, and static assets; maintains reusable UI and demo libraries; and supports marketing, brand, creative, growth, and web teams. Requires strong production skills, daily motion and video expertise, Figma fluency, independent execution, stakeholder management, and scalable AI-powered workflows.

Own Wealthsimple’s transfer pricing framework, including policies, governance, documentation, calculations, benchmarking, intercompany agreements, compliance, audits, and advisory work. Partner with Finance, Accounting, Treasury, Legal, FP&A, and business teams to assess tax implications of transactions, products, entities, and jurisdictions. Build scalable processes and controls, identify automation opportunities, manage advisors, monitor international tax developments, and support broader international tax matters as the company expands.

Own Wealthsimple’s direct tax function, including income tax provisions, current and deferred tax, forecasting, corporate compliance, tax positions, audits, elections, and entity-level tax documentation. Review T2 and provincial returns, support CRA and Revenu Quebec audits, resolve assessments, and advise on transactions and reorganizations. Establish risk-based review standards, maintain audit-ready workpapers, and lead technical documentation across a complex multi-entity group.

Lead development, testing, and maintenance of quantitative market risk models (VaR, SVaR, stress testing). Produce methodology documentation, model CIRO 5000 margin impacts, write production-quality code, collaborate across risk and reporting teams, and proactively identify and fix model performance issues.

Hire and lead a platform engineering team to define and build Wealthsimple's observability foundation. Own roadmap, instrumentation (OpenTelemetry), SDKs, high-cardinality event data models, SLO/SLI-driven reliability, vendor strategy, pilots, and AI-agent accessible production tooling while remaining hands-on for architecture and prototypes.

Design and build an events-first observability platform: architect high-throughput ingest, storage, and query pipelines; ship SDKs and instrumentation; define standards (OpenTelemetry, SLOs); enable AI-agent investigation and mentor senior engineers while leading cross-team technical initiatives.