Principal Software Engineer (Toronto)
Location
toronto, on
Job Type
Full-time
Category
Other-General
Posted
May 23, 2026
Questrade Financial Group (QFG) is a leading fintech company based in North York, Ontario, Canada. Position: Principal Software Engineer (Hybrid – North York office, 3 days on‑site) Posted: Thursday, April 23, 2026 Responsibilities
Own the end‑to‑end design and implementation of complex, high‑impact solutions across back‑end, web, and mobile platforms. Lead architectural decisions, produce architecture artifacts, and conduct design reviews. Write production‑ready code in C# / .NET, ASP.NET Core, TypeScript, Angular, and React Native. Advocate and apply Domain‑Driven Design (DDD) and Event‑Driven Architecture (EDA) practices. Drive technology strategy for AI tooling, integrating daily usage of Cursor, Claude, and Gemini. Collaborate closely with product leaders, PMs, and other senior engineers to translate requirements into technical strategies. Champion fast, quality delivery in a culture that uses AI tooling as core workflow. Qualifications
10+ years of professional ...
Own the end‑to‑end design and implementation of complex, high‑impact solutions across back‑end, web, and mobile platforms. Lead architectural decisions, produce architecture artifacts, and conduct design reviews. Write production‑ready code in C# / .NET, ASP.NET Core, TypeScript, Angular, and React Native. Advocate and apply Domain‑Driven Design (DDD) and Event‑Driven Architecture (EDA) practices. Drive technology strategy for AI tooling, integrating daily usage of Cursor, Claude, and Gemini. Collaborate closely with product leaders, PMs, and other senior engineers to translate requirements into technical strategies. Champion fast, quality delivery in a culture that uses AI tooling as core workflow. Qualifications
10+ years of professional ...