C# .NET Developer

C# .NET Developer - 3 months+ - Hybrid - Rate circa £500-£650

We are looking for an experienced C# .NET Developer with experience of GenAI to join a team developing cutting edge AI solutions who will either have current and active SC clearance or have the ability to be able to obtain SC clearance.

You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.Net. This will be a very much collaborative role working with a range of domain experts. You will work on projects developing GenAI capabilities and provide guidance to non-technical people.

What you will bring to the team

• Solid C# .NET experience
• Fine-tune Large Language Models (LLMs) and other generative architectures.
• Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learning.
• Experiment with model configurations to balance performance, cost, and scalability.
• Build robust data pipelines for continuous model improvement and retraining.
• Ensure compliance with ethical AI and data governance standards (privacy, bias mitigation).
• Develop APIs, microservices, and integrations to embed GenAI models into enterprise workflows.
• Work with Front End and Back End teams to deliver AI-driven features in production.

Required Skills

• Programming: C# .NET essential
• Azure functions knowledge
• Knowledge of AI principles and AI ethics
• Knowledge of data safety in LLM usage
• Experience with:
• AWS: boto3, Bedrock, SageMaker, Lambda, S3, EC2
• Azure: Azure OpenAI Service, Cosmos DB

• Retrieval-Augmented Generation (RAG), Graph RAG
• Embedding models and LLM training fundamentals

Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website.

Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.

Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.