Full-time

C#.Net Fullstack engineer ( 50% front end and 50% backend)

Posted by Gracemark Solutions • toronto, on, Canada

📍 toronto, on 🕒 May 31, 2026

About the Role

CANADA CANDIDATES ONLY

Duration: Long term contract

No. of Positions: 3

Key Areas: C#.Net, C# Backend, Azure, Next.JS, React.JS, Node.JS

We're looking for an engineer with

hands‑on, production experience

integrating LLM APIs (OpenAI, Azure OpenAI, Anthropic). You should be able to design end‑to‑end AI pipelines, including:

Streaming responses Advanced prompt engineering Output evaluation and hallucination mitigation Human‑in‑the‑loop workflows Document‑processing and retrieval‑augmented pipelines

Daily use of AI‑assisted development tools (Copilot, Claude Code, Cursor) is expected.

.NET Backend Development

Strong experience building backend services in

.NET (C#) , including:

API and microservice design Async processing and streaming endpoints Integrating .NET services with LLM providers Clean architecture and modern .NET patterns

Experience pairing

Next.js front...

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