AI Engineer: Build Production-Ready LLM Apps & APIs

Ronald James Group; Newcastle upon Tyne; On-site; GBP 70,000 - 110,000; Full time

Job summary

Ronald James Group is seeking an AI Engineer to design, build, and deploy AI-powered features and services. You will focus on integrating LLMs into production applications, building scalable backend systems and practical AI solutions.

You will work with LangChain, LlamaIndex, Semantic Kernel and major APIs to deliver robust AI tooling, with strong emphasis on TypeScript/Node.js, REST APIs and modern cloud-based infrastructure.

Qualifications

• Strong hands-on experience building production-grade AI-enabled features.
• Proven backend exposure with Node.js/TypeScript and REST APIs.
• Experience integrating LLMs and AI services into scalable apps.
• Familiarity with cloud services and CI/CD pipelines.

Responsibilities

• Design and deploy AI-powered features from prototype to production.
• Integrate LLMs and AI services, tools and agents into applications.
• Develop and maintain backend services and REST APIs.
• Build scalable applications and integrations with robust testing.
• Collaborate with product/engineering to identify AI opportunities.
• Contribute to internal AI tooling and development best practices.

Skills

TypeScript

Node.js

React

REST APIs

Distributed systems

Testing & deployment

Tools

LangChain

LlamaIndex

Semantic Kernel

OpenAI API

Anthropic API

Docker

CI/CD pipelines

AWS (Lambda/SQS/SNS/S3)

Vector databases

RAG

Job description

Ronald James Group is seeking an AI Engineer to design, build, and deploy AI-powered features and services. You will focus on integrating LLMs into production applications, building scalable backend systems and practical AI solutions.

You will work with LangChain, LlamaIndex, Semantic Kernel and major APIs to deliver robust AI tooling, with strong emphasis on TypeScript/Node.js, REST APIs and modern cloud-based infrastructure.