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Principal Machine Learning Engineer at innovative consumer-tech startup

Are you a visionary ML leader looking to define the future of personalized digital experiences? This high-impact role at a well-funded London startup offers the chance to architect production-grade models that reach millions of users. You will lead the technical strategy, mentor a talented team, and solve complex scaling challenges while working with modern infrastructure. If you thrive on moving from research to real-world deployment and want to shape the technical roadmap of a fast-growing platform, this is the career-defining opportunity you have been waiting for.

About this role

Role overview

As a Principal Machine Learning Engineer, you will lead the technical strategy for a high-traffic platform, driving the development of advanced recommendation engines and predictive models. You will bridge the gap between research and production, architecting scalable systems that process vast amounts of user data to deliver highly personalized digital experiences.

About the company

About the company

Innovative consumer-tech startup

What you'll do

What you will do

  • Design and deploy sophisticated machine learning models to enhance user engagement and retention.
  • Architect robust data pipelines and infrastructure to support real-time inference at scale.
  • Mentor senior engineers and establish best practices for ML development, testing, and monitoring.

Who you are

Who this is a fit for

  • Extensive experience building and scaling production-grade machine learning systems in a cloud environment.
  • Deep expertise in NLP, recommendation systems, or reinforcement learning with a track record of delivery.
  • Strong proficiency in Python and modern ML frameworks such as PyTorch or TensorFlow.

Why this role

Why this role is remarkable

  • Lead high-impact ML initiatives from inception to production at a rapidly scaling organization.
  • Work alongside a world-class engineering team backed by top-tier venture capital firms.
  • Shape the technical roadmap for a product used by millions, influencing core business outcomes.

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