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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.

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Location

London, United Kingdom

Compensation

Not Disclosed

Company

Confidential company

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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

Innovative consumer-tech startup

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 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 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.

How Jack & Jill work together

Jack
I get to know what you’re great at, then find roles you’d never find yourself.
Jill
I recruit from Jack’s network and make the intro when I spot a great match.
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Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.

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What happens next?

Jack’s an AI agent for job searching and career coaching. He works for you.

Jill is the AI recruiter working for the company. She recruits from Jack’s network.

If your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.

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