Senior Product Engineer C#/.NET & AI

Salary: £80,000 - 80,000 per year

Requirements:

• Strong commercial C#/.NET engineering experience
• Modern .NET / ASP.NET Core / REST API development experience
• Genuine full-stack capability with React, Angular, TypeScript, JavaScript, or similar
• SQL experience and strong software engineering fundamentals
• Cloud exposure across Azure and/or AWS
• Hands-on exposure to LLMs or Generative AI
• Ability to explain what we built, how the model was integrated, and the engineering decisions behind it

Responsibilities:

• Build and evolve commercial applications using C#, .NET, and modern web technologies
• Design and integrate Generative AI/LLM functionality directly into our software products
• Work with technologies such as OpenAI, Azure OpenAI, Claude, Gemini, or local models
• Explore RAG, AI agents, Semantic Kernel, MCP, vector search, and intelligent workflows
• Engineer production AI considerations including accuracy, security, validation, guardrails, latency, and cost
• Work across the stack, including modern frontend technologies such as React, Angular, or TypeScript
• Modernise established products while helping shape how AI changes their capabilities
• Take ideas from experimentation through to production-ready customer functionality

Technologies:

• AI
• AI Agents
• API
• ASP.NET
• AWS
• Angular
• Azure
• C#
• Cloud
• Frontend
• JavaScript
• LLM
• MCP
• RAG
• REST
• React
• SQL
• Security
• TypeScript
• Web
• ChatGPT
• Copilot

More:

We are an established global software business making a major investment into Applied AI and Generative AI across our product portfolio. This is a hybrid role based in Sheffield / Tankersley, with 3 days onsite and 2 days remote, and a salary of up to £80,000 depending on level and experience. We are hiring for Mid-Level and Senior Software Engineers who are strong product developers first and want to build AI directly into real-world software used by businesses internationally. This is a chance to join a substantial software organisation where AI is becoming a core part of our engineering and product strategy, and where you can make Applied AI a much bigger part of your career.

last updated 33 week of 2026