Senior AI Engineer - Production LLM & Multi-Agent (Hybrid)

Harvey Nash; Oxford; Hybrid; GBP 111,000 - 129,000; Full time

Job summary

Harvey Nash are partnering with a leading BioTech/Pharma consultancy to hire a highly experienced AI Engineer for a critical project in Oxford. You will own production-grade AI solutions, building LLM and agentic AI systems for real-world deployment.

The role requires deep Python expertise, hands-on work with LangChain/LangGraph/Haystack, plus containerised architectures (Docker, Kubernetes) and cloud platforms (AWS). Hybrid setup: 2 days in Oxford; ASAP start.

Qualifications

• Senior Python engineer with production software experience.
• Experience building LLM, agentic AI or multi-agent systems.
• Hands-on with LangGraph, LangChain, Haystack or similar frameworks.
• Deploy AI/ML systems to production.
• Strong knowledge of inference, latency, performance, data pipelines, memory and tool calling.
• Experience with large-scale search, embeddings, indexing and multi-modal data.
• Confident with Docker, Git and cloud platforms, ideally AWS.
• Understanding secure deployments, including air-gapped, on-premises or sovereign cloud environments.
• Strong technical ownership, documentation and stakeholder communication skills.

Skills

Senior Python

LLM / agentic AI

LangGraph

LangChain

Haystack

A2A / MCP

Docker

Git

AWS cloud

Kubernetes / OpenShift

MLOps

Secure deployments

Tools

Docker

Git

AWS

Kubernetes

EKS

OpenShift

Job description

Harvey Nash are partnering with a leading BioTech/Pharma consultancy to hire a highly experienced AI Engineer for a critical project in Oxford. You will own production-grade AI solutions, building LLM and agentic AI systems for real-world deployment.

The role requires deep Python expertise, hands-on work with LangChain/LangGraph/Haystack, plus containerised architectures (Docker, Kubernetes) and cloud platforms (AWS). Hybrid setup: 2 days in Oxford; ASAP start.