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Founding ML Scientist at VC-backed AI security platform

Are you ready to define the future of AI security? A pioneering startup is seeking a Founding ML Scientist to build the critical security layer for autonomous AI agents deployed in high-stakes environments. This is a unique opportunity to shape infrastructure for a new era of AI, working with full autonomy to solve complex challenges and make a profound impact on how intelligent systems operate safely and reliably.

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Location

London, United Kingdom

Compensation

£80k-£120k + Equity

Company

Confidential company

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Role overview

Join a pioneering team building the security layer for AI agents operating in critical environments like banks and hospitals. As a Founding ML Scientist, you'll define next-gen AI security, architect infrastructure for autonomous systems, and shape product vision. This is a chance to make a significant impact at the frontier of AI deployment, ensuring safe and reliable operation.

About the company

VC-backed AI security platform

What you will do

  • Build adaptive AI security solutions that learn and evolve with the agents they protect.
  • Establish the control layer for AI systems making real-time decisions in high-stakes environments.
  • Drive product vision and technical strategy as a core founding team member.

Who this is a fit for

  • Experience training LLMs with modern methods like RL with GRPO or fine-tuning with QLoRA.
  • Proficient in setting up multi-GPU training and inference infrastructure in cloud environments (GCP/AWS).
  • Possesses a founding engineer mindset, comfortable with ambiguity and prioritizing shipping and iteration.

Why this role is remarkable

  • Define and build the next generation of AI security that learns and adapts to protect autonomous agents.
  • Work with a founding team of experts from intelligence, fintech, and infrastructure software.
  • Enjoy full autonomy over architecture, tooling, and technical standards, shaping the company's engineering culture.
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