Full time

Lead Full Stack Developer (React/.NET)

Posted by STACK IT Recruitment β€’ Canada, Ontario, Canada

πŸ“ Canada, Ontario πŸ•’ February 21, 2026

About the Role

πŸ› οΈAre you a hands-on React leader who enjoys owning front-end architecture while staying close to backend system design?

We are hiring a Lead Full Stack Developer with a strong front-end focus to lead UI architecture and development across our enterprise applications. This role requires deep, hands-on expertise in React and modern front-end engineering practices, along with solid backend experience in C#, ASP.NET Core, Entity Framework, and SQL Server.

While this is a full-stack position, the primary responsibility is ownership of the front-end architecture, defining standards, modernizing legacy UI layers, and building scalable, high-performance React applications. Backend expertise is essential to ensure effective API design, data modeling alignment, and end-to-end system performance within a Microsoft technology stack.

This is a high-impact opportunity within an established U.S.-based financial/...

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