Machine Learning Engineer | Competitive Compensation | LLMs

Company: Understanding Recruitment
Apply for the Machine Learning Engineer | Competitive Compensation | LLMs
Location: London
Job Description:

Machine Learning Engineer – LLMs

Want to build LLM-powered systems that have to work reliably in the real world?

We’re looking for an exceptional Machine Learning Engineer to help build and deployproduction-grade AI systems, with a particular focus on LLMs and modern generative AI.

This isn’t a research-only role. You’ll work acrossmodels, data, evaluation and production systems– turning the latest advances in AI into reliable, high-impact products.

What you’ll do

  • Build and shipLLM-powered features and systemsinto production
  • Design robustevaluation frameworksto measure and improve model performance
  • Experiment with prompting, fine-tuning, retrieval and agentic approaches
  • Build data and ML pipelines that support rapid experimentation at scale
  • Optimise models and inference forlatency, reliability and cost
  • Work closely with software, product and domain experts to solve difficult real-world problems
  • Help shape the company’sML architecture, tooling and technical direction

You’ll ideally bring:

  • ExcellentPythonand software engineering skills
  • Strong experience withPyTorchand modern ML tooling
  • Hands-on experience building applications withLLMs
  • A strong understanding oftransformers, embeddings and modern NLP
  • Experience with LLM evaluation, fine-tuning, RAG and/or agentic systems
  • Experience taking ML models fromexperimentation through to production
  • Strong judgement around model quality, data, performance and trade-offs

What’s on offer

  • Competitive salary +equity
  • 7% pension
  • Private healthcare
  • Free daily meals

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Posted: October 1st, 2026