Machine Learning Engineer (LLMs)

Understanding Recruitment; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Equity

7% pension

Private healthcare

Free daily meals

Technical ownership

Real-world deployments

Job summary

Understanding Recruitment is seeking a Machine Learning Engineer to build production AI systems focused on LLMs and generative AI. You will work across the full ML lifecycle from experimentation to deployment.

You will deploy LLM-powered products, collaborate with engineers and product teams, and improve performance, latency and reliability. Strong Python and PyTorch skills, and experience with production ML are essential.

Qualifications

• Strong Python and PyTorch skills with hands-on LLM experience.
• Experience deploying ML models into production.
• Familiarity with RAG, fine-tuning, evaluation or agents.
• Understanding of transformers and modern NLP.

Responsibilities

• Building and deploying LLM-powered products.
• Working with RAG, fine-tuning and agentic AI.
• Developing evaluation and ML pipelines.
• Improving model performance, latency and reliability.
• Working closely with engineers and product teams to solve real-world problems.

Skills

Python

PyTorch

LLMs / Generative AI

Production deployment

Transformers

Tools

Transformers

Job description

Machine Learning Engineer (LLMs)

Want to build and ship real-world AI products?

We’re looking for a Machine Learning Engineer to build production AI systems, with a focus on LLMs and generative AI.

You’ll work across the full ML lifecycle — from experimentation and evaluation through to deploying reliable systems into production.

What you’ll be doing

• Building and deploying LLM-powered products
• Working with RAG, fine-tuning and agentic AI
• Developing evaluation and ML pipelines
• Improving model performance, latency and reliability
• Working closely with engineers and product teams to solve real-world problems

What we’re looking for

• Strong Python and PyTorch
• Hands‑on experience with LLMs / Generative AI
• Experience deploying ML models into production
• Understanding of transformers and modern NLP
• Experience with RAG, fine-tuning, evaluation or agents

What’s on offer

• Competitive salary +equity
• 7% pension
• Private healthcare
• Free daily meals
• Significant technical ownership
• Work on cutting‑edge AI that is actually deployed in the real world

You’ll need the right to work in the UK and be eligible for UK SC clearance.