C# .Net Developer

C# .Net Developer

Posted Today by Damia Group Ltd

£650 Per day
Inside
Hybrid
London

Summary: The role of C# .Net Developer involves developing advanced AI solutions using C# and .Net technologies, with a focus on generative AI capabilities. The position requires collaboration with domain experts and the ability to obtain SC clearance. The developer will work across Azure and AWS platforms, optimizing AI models for business applications. Strong experience in C# and knowledge of AI principles are essential for success in this role.

Key Responsibilities:

  • Develop AI solutions using C# .Net and collaborate with domain experts.
  • Fine-tune Large Language Models (LLMs) and optimize pre-trained models for business use cases.
  • Build robust data pipelines for continuous model improvement and retraining.
  • Ensure compliance with ethical AI and data governance standards.
  • Develop APIs, microservices, and integrations to embed GenAI models into enterprise workflows.
  • Work with frontend and backend teams to deliver AI-driven features in production.

Key Skills:

  • Solid C# .Net experience.
  • Knowledge of Azure functions and AI principles.
  • Experience with AWS services (boto3, Bedrock, SageMaker, Lambda, S3, EC2).
  • Experience with Azure OpenAI Service and Cosmos DB.
  • Understanding of data safety in LLM usage and AI ethics.
  • Familiarity with Retrieval-Augmented Generation (RAG) and embedding models.

Salary (Rate): £650/day

City: London

Country: United Kingdom

Working Arrangements: Hybrid

IR35 Status: Inside IR35

Seniority Level: Mid-Level

Industry: IT

Detailed Description From Employer:

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 frontend and backend 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.