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Software / AI Engineer, C# and React (Hungerford, Berkshire)

KEY POINTS

• Full time, hybrid, 3 days a week onsite in Hungerford, 2 from home
• True full stack, React front end through C# and .NET APIs to SQL Server and Postgres
• Real LLM integration work, models built into a shipping product rather than AI used to write code
• Local and self hosted models, guardrails and model security all genuinely valued
• Open to different levels, they are hiring on quality rather than years served
• Salary up to £80,000 depending on experience
• Right to work in the UK required

ABOUT THE CLIENT

We are supporting a long established international software business with a large UK engineering organisation. They build industry specific software used by tens of thousands of customers across distribution, automotive, retail and rental, and they have been doing it for decades.

They are now building out a core AI engineering capability and putting AI into their products at pace. This is a competitive market and their rivals are pushing AI first products out quickly, so these are hires that matter to the business rather than an innovation side project.

THE ROLE, SOFTWARE / AI ENGINEER

Hands on product engineering in a team led by an architect and a team lead, based out of their Hungerford office.

You will work across the full stack, React based front end, C# and .NET APIs, SQL Server and Postgres behind it, hosted on Azure or AWS. Alongside that you will be integrating large language models directly into the product.

One of the products in scope is a garage management system on the automotive side of the business, with the rental side also in focus.

WHAT THEY MEAN BY AI EXPERIENCE

Worth being direct about this, because it is the main thing they screen on.

They are not looking for people whose AI experience is using Claude, Cursor or Copilot to write code faster. That is assumed and it is part of how the team works day to day, but on its own it will not get you through the door.

They want engineers who have integrated LLMs into a live product or solution. If you have built something where a model is doing real work in front of customers, that is the conversation they want to have.

ON LEVEL

They are open on this. There are seats at engineer, senior and lead level and they will place the right person at the right level rather than working to a fixed job title. Salary goes up to £80,000 for the more senior end.

They are also open on how long you have been working with AI specifically. The tooling is recent and they know the pool is shallow. A couple of years is a great starting point, but strong evidence of real product work counts for more than time served.

KEY RESPONSIBILITIES

• Build and maintain full stack features, front end through API to database
• Integrate large language models into live product functionality
• Design and implement guardrails around model behaviour and output
• Work on performance, scalability and security across the platform
• Contribute to CI/CD pipelines and engineering standards
• Work closely with the architect, team lead and wider engineering team

ESSENTIAL EXPERIENCE

• Strong commercial C# and .NET background, this is their backend and they are not looking at other languages
• React based front end experience, or a close equivalent such as Angular or Next.js
• SQL Server and Postgres
• Genuine experience integrating LLMs into a product or solution, not just using AI tools to write code
• Cloud experience, Azure or AWS
• Git based source control, GitHub or Azure DevOps
• CI/CD, performance and scalability
• Right to work in the UK
• Able to be onsite in Hungerford 3 days a week

DESIRABLE, NOT ESSENTIAL

• Experience creating or running local or self hosted LLMs
• Guardrails, prompt injection defence and securing model outputs
• Azure DevOps
• Working fluency with AI development harnesses such as Claude, Codex or Cursor, via UI or CLI
• Automotive, automotive aftermarket or vehicle rental domain knowledge

WHAT'S ON OFFER

• Salary up to £80,000 depending on experience
• Hybrid working, 3 days onsite in Hungerford and 2 from home
• Genuine AI product work in an established, profitable business rather than a startup bet

TO APPLY

Please apply via this advert or email Daniel.Jones@searchability.com directly. For further information, call 0203 763 3888 or 07704 152 638. By applying, you consent