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🥝 Lead Machine Learning Engineer (Chat)

Cleo AI | london, United-Kingdom | Posted May 19, 2026

Job Description

Requirements

  • Experience deploying multiple machine learning models into production
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  • 5+ years of experience in data science, machine learning engineering, or related roles
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  • Experience integrating and evaluating LLMs
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  • Excellent knowledge of both Data Science (Python, SQL) and production tools
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  • Understanding of probability and statistics fundamentals
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  • Strong ability to communicate findings to non-technical stakeholders
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  • Experience of leading projects involving multiple people including developing a short term roadmap and reporting progress
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  • Comfortable breaking down work incrementally
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  • (Desirable) Familiarity with Docker containers and container orchestration tools
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  • (Desirable) Experience with LLM-as-a-judge and/or annotation pipelines
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  • We strongly encourage applications from people of colour, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, ...

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