AI Developer (Mid–Senior)

Location: Newcastle upon Tyne or Remote (UK)- PERM

Salary: £50,000 – £80,000

We’re working with a growing technology organisation looking to expand its engineering capability with a number of AI Developers. You’ll play a key role in building intelligent, scalable features, leveraging the latest in LLMs, retrieval-augmented generation (RAG), and cloud-native technologies.

There are multiple roles available, ranging from mid-level to senior engineers, offering opportunities to both deepen technical expertise and take ownership of AI initiatives.

What You’ll Be Doing

• Design and build AI-powered features using modern LLM frameworks
• Develop and optimise RAG pipelines (vector databases, embeddings, retrieval strategies)
• Integrate AI services into existing backend systems and APIs
• Work with structured and unstructured data to improve model outputs
• Collaborate with cross-functional teams to deliver high-impact features
• Contribute to architecture decisions and help shape AI capability
• Ensure performance, scalability, and reliability of AI systems in production

Tech & Tools

• Backend: .NET / C# (or similar), REST APIs
• AI/ML: OpenAI, Azure AI, or similar LLM platforms
• RAG: Vector databases (e.g. Pinecone, Weaviate, or similar)
• Cloud: Azure, AWS, or GCP
• Frontend collaboration: any modern JS framework (desirable)
• DevOps: CI/CD pipelines, containerisation

What We’re Looking For

Mid-Level

• 2–4+ years of software development experience
• Exposure to AI/ML or LLM-based applications
• Understanding of APIs, backend systems, and cloud environments
• Interest or hands-on experience with RAG or semantic search

Senior-Level

• 5+ years of experience in software engineering
• Strong experience designing and deploying AI-driven systems
• Proven experience building or scaling RAG architectures
• Ability to lead projects, mentor others, and influence technical direction