.NET Developer

.NET Developer – Azure, APIs, .NET, Azure, Paas, Azure Functions, AKS, API Management, RESTful API, AI frameworks, Python, LLMs, Large Language Models, RAG, Retrieval Augmented Generation, MCP, Model Context Protocol, Agent2Agent, A2A, GitHub CoPilot, AI Foundry, Semantic Kernel, PyTorch, TensorFlow – Cambridge – £300-350pd (inside R35)

Our IT consultancy client is seeking 4x experienced .NET Developers to help design, develop, and scale AI-enabling platform services and public APIs that are secure, reliable, and cloud-native.

The role will involve 5 days per week on-site in Cambridge and has been deemed inside IR35.

Key Skills & Experience:

• Significant experience in development using Microsoft and .NET technologies.
• Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management).
• Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
• Proficiency in securing APIs, managing authentication/authorization, and data privacy practices.
• Excellent problem-solving skills, with the ability to analyse complex technical challenges and propose scalable solutions.
• Experience working in Agile teams and collaborating across global R&D locations.
• Demonstrated ability to mentor junior team members and foster a culture of continuous learning and innovation.
• Demonstrated experience with AI frameworks, tools, and Python.
• Experience working with Large Language Models (LLMs) and understanding trade-offs between performance, cost, and capability.
• Understanding of Retrieval-Augmented Generation (RAG), agent orchestration, prompt engineering, and tool calling.
• Familiarity with AI standards such as Model Context Protocol (MCP) and Agent2Agent (A2A).
• Strong knowledge or experience in ML algorithms (regression, classification, clustering, deep learning).
• Knowledge of AI ethics and regulations (e.g., NIST AI RMF, EU AI Act) with a commitment to responsible AI development.
• Fluent in developing code using AI tools such as GitHub Copilot, with the ability to apply prompt engineering in development tasks.
• Familiarity with AI orchestration platforms such as AI Foundry and/or Semantic Kernel.
• Experience with automated testing and evaluation of AI outputs is a plus.
• Proficiency in Python and AI frameworks/tools such as PyTorch and TensorFlow.

Main Responsibilities:

• Build scalable, fault-tolerant cloud-native services on Microsoft Azure, ensuring high performance and reliability.
• Develop secure, well-documented public APIs and SDKs for consumption by internal and external developers.
• Collaborate with cross-functional teams to deliver end-to-end solutions across data pipelines, orchestration, and service APIs.
• Embed robust security controls to protect sensitive data and ensure secure access to AI services.
• Contribute to design reviews, code reviews, and architectural discussions to ensure engineering excellence.
• Mentor junior developers, encourage continuous learning, and contribute to a culture of innovation.
• Work with multiple teams to create AI solutions, including AI model deployment, training, and AI tooling development.

Location: Cambridge

Candidates must be eligible to work in this country.

Catch Resource Management is a leading provider of Dynamics 365, JD Edwards, NetSuite and other ERP resources to both end users and to product suppliers/authors.

Our consultants deliver a completely professional resourcing service, always backed up by our team of ERP specialists who are all experienced in full project life cycle implementation and support, thus ensuring that we fully understand our clients’ requirements and our candidates’ skills.

If you have the relevant skills and experience for this position we would welcome your application, however please note that we receive high levels of responses to our advertisements so can only immediately respond to those that are a close match. However, if you are interested in hearing about similar positions then please register on our website: www.catchgroup.com.