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Founding Machine Learning Engineer (London)

Arrows
Leicester
1 day ago
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Director of Europe & Al/ML/ Data - UK, DACH & BENELUX

Founding Machine Learning Engineer - AI Start-Up (On-Site | Equity + Salary)

A rare opportunity to join one of Londons most exciting AI start-ups at the ground level! Backed by top-tier investors and led by a world-class founding team from Oxford, Cambridge, and Imperial , this company is pushing the boundaries of applied AI.

Theyre now looking for a Founding Machine Learning Engineer to join the core technical team and lead the development of their ML systems from the ground up.

About the Company:

Founded by experienced operators with multiple AI start-up successes under their belts, this venture is already attracting serious attention. With strong financial backing and a bold technical vision, theyre building intelligent systems that solve high-impact real-world problems.

This is not just another AI start-up - its a company where cutting-edge research meets practical, scalable product development.

The Role:

As a founding ML engineer, youll be deeply involved in shaping the entire ML pipeline - from research and prototyping to model deployment and optimisation. Youll work closely with product and engineering to integrate intelligent features into a user-facing product from day one.

Youll need to be both a scientist and an engineer: excited by innovation, and pragmatic about delivering impact!

  • Python and modern ML libraries (e.g. PyTorch, TensorFlow, JAX)
  • AWS and cloud infrastructure for scalable training and inference
  • ML ops tooling, model monitoring, and data pipelines
  • Bonus: experience with LLMs & generative AI is a strong plus

What Theyre Looking For:

  • Top-tier academic background in Computer Science, Engineering, Maths or a related field Oxbridge, Imperial, or equivalent
  • 4+ years of hands-on ML experience , ideally in fast-moving start-up environments
  • A strong track record of building and deploying ML models into production
  • Solid understanding of ML system design, experimentation, and model evaluation
  • Experience working with ambiguous product requirements and iterating fast
  • Passion for pushing boundaries in AI - and for building real products, not just prototypes
  • Happy working 5 days/week on-site in a Central London office, shoulder to shoulder with the founding team

Whats on Offer:

  • Exceptional salary
  • Meaningful equity - founding engineer-level stake
  • Ownership of the ML roadmap and long-term technical vision
  • The chance to help build a product and company from day one
  • A deeply collaborative, high-performance environment with elite peers

If you're an experienced ML engineer looking for your next big challenge, and want to build something important with world-class people - this could be the opportunity of a lifetime!

Sound like you? Lets talk.

Seniority level

  • Seniority level

    Mid-Senior level

Employment type

  • Employment type

    Full-time

Job function

  • Industries

    Software Development and IT System Data Services

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