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Machine Learning Engineer

Harnham
Cambridge
3 weeks ago
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Machine Learning Engineer – On-Device Health Monitoring

Cambridge (1 day a week)

Up to £80,000 + Equity + Benefits


About the Role

We’re working with a pioneering health-tech start-up that’s transforming the way we measure human health through sound. Their mission is to create the world’s leading foundation model for turning sound into health insights — enabling preventative health monitoring through devices people already own.


They’re now looking for a Machine Learning Engineer to build and optimise on-device ML models for health and biosignal monitoring, helping take their technology from proof of concept to a production-ready product.


You’ll be at the forefront of developing models that run efficiently on constrained devices, working closely with the CTO on design, optimisation, and deployment. This is a hands-on technical role that offers full exposure to the early-stage startup experience — from prototyping and experimentation to strategic product decisions.


Key Responsibilities

  • Develop, optimise, and deploy machine learning models for on-device health monitoring.
  • Experiment with architectures and apply techniques such as quantisation, pruning, and compression to improve efficiency.
  • Collaborate with cross-functional teams to take research prototypes into production-ready systems.
  • Contribute to broader technical and product discussions, including data collection, validation, and feature development.
  • Take ownership of projects, working autonomously while supporting the wider engineering team.


What We’re Looking For

  • Ph.D. or Master’s degree in Computer Science, Machine Learning, Information or Biomedical Engineering (or similar).
  • Strong experience with deep learning frameworks (PyTorch/TensorFlow) and Python development.
  • Proven background in on-device ML (TinyML) using frameworks such as TensorFlow Lite, ExecuTorch, or TVM.
  • Solid understanding of model optimisation for constrained hardware environments.
  • Ability to write clean, maintainable, and well-tested code in a collaborative setting.
  • Curiosity, adaptability, and enthusiasm for working in a fast-paced, early-stage environment.
  • Experience working with time-series data such as audio or biosignals.
  • Background in biomedical or signal processing.
  • Experience writing production-level code or integrating models with embedded systems.
  • Previous startup experience or exposure to medical device development.

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