AI Software Engineer - C#/.NET & LLMs in Production

Apache Associates; Sheffield; On-site; GBP 70,000 - 110,000; Full time

Job summary

Apache Associates are seeking an AI Software Engineer with strong C# .NET experience to build AI-powered capabilities across the product portfolio. You will work with LLMs, prompt engineering, context design and structured outputs to produce production-ready features inside established .NET products.

You’ll prototype quickly while maintaining engineering discipline, focusing on accuracy, reliability, latency, cost, monitoring and data handling.

Qualifications

• Strong commercial C# .NET development experience.
• Hands-on experience with Large Language Models (LLMs).
• Knowledge of prompt engineering, context engineering and structured outputs.
• Experience taking ideas from concept to working software quickly.
• Ability to evaluate LLM outputs using structured approaches.

Responsibilities

• Design and build prompts, context strategies and LLM integrations for real-world product features.
• Develop production-grade AI services with robust error handling, fallbacks, monitoring and logging.
• Prototype new ideas quickly and turn experiments into robust production features.
• Develop structured approaches to evaluating LLM outputs using real business scenarios.

Skills

C# .NET

LLMs

Prompt engineering

Context engineering

Structured outputs

AI feature production

GitHub Copilot

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Tools

GitHub Copilot

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Job description

Apache Associates are seeking an AI Software Engineer with strong C# .NET experience to build AI-powered capabilities across the product portfolio. You will work with LLMs, prompt engineering, context design and structured outputs to produce production-ready features inside established .NET products.

You’ll prototype quickly while maintaining engineering discipline, focusing on accuracy, reliability, latency, cost, monitoring and data handling.