Software Engineer (c#.net/Azure)

Areti Group | B Corp™; Greater London; On-site; GBP 720,000 - 1,199,000; Full time

Job summary

The Areti Group | B Corp™ is seeking a Senior Software Engineer to join a major modernisation programme in London. You will help build and evolve cloud-native applications while contributing to AI-driven initiatives, focusing on C#/.NET and Azure.

Ideal candidates have strong experience with C# and .NET, Azure, cloud APIs, and delivery in complex enterprise environments. This role is a 6-month contract with three days onsite in London City.

Qualifications

• Strong commercial experience with C# and .NET.
• Excellent knowledge of Microsoft Azure.
• Experience building modern, scalable cloud applications and APIs.
• Experience in modernisation / transformation programmes.
• Comfortable working in complex enterprise environments.
• Genuine interest in AI, GenAI and Agentic AI.
• Any hands-on exposure to LLMs, Azure OpenAI, AI agents, RAG or AI-enabled applications would be highly advantageous.

Responsibilities

• Develop and evolve cloud-native applications on Azure.
• Collaborate with engineering and product teams on AI features.
• Support modernisation and transformation programmes.
• Deliver scalable APIs and maintain code quality.

Skills

C# / .NET

Azure

APIs

Cloud-native

AI interest

LLMs exposure

Job description

Senior Software Engineer - C# / .NET / Azure

Contract: 6 months

Location: London, City

We're looking for an experienced Senior Software Engineer to join a major modernisation programme, helping build and evolve modern, cloud-native applications while supporting a growing move into AI and agentic technologies.

This is fundamentally a C#/.NET and Azure engineering role, so you don't need to be an AI specialist. However, we're particularly interested in engineers who are enthusiastic about AI, have started experimenting with it, or want to incorporate AI capabilities into enterprise software.

What we're looking for:

• Strong commercial experience with C# and .NET
• Excellent knowledge of Microsoft Azure
• Experience building modern, scalable cloud applications and APIs
• Strong software engineering fundamentals and clean coding practices
• Experience working on modernisation / transformation programmes
• Comfortable working in complex enterprise environments
• Genuine interest in AI, GenAI and Agentic AI
• Any hands-on exposure to LLMs, Azure OpenAI, AI agents, RAG or AI-enabled applications would be highly advantageous, but isn't essential
• Strong communication skills and ability to work collaboratively with engineering and product teams

The opportunity

This would suit a strong .NET/Azure engineer who wants to move deeper into AI, rather than someone coming from a pure Data Science or Machine Learning background.

You'll have the opportunity to apply your existing engineering experience while helping shape how AI capabilities are introduced into modern enterprise applications.

£650/day | Outside IR35 | 6 months | London City | 3 days onsite