C#.Net Fullstack engineer ( 50% front end and 50% backend)
Gracemark Solutions
Full-time
Other-General
Location
toronto, on, Canada
Posted
May 31, 2026
Job Description
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...
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...