Skip to main content
Back to all jobs

This job is no longer actively hiring. Open Roles to see active jobs.

Confidential company

Job listing

London, United Kingdom£80k-£120k + Equity

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.

Overview

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.

Company

About the company

VC-backed AI security platform

Responsibilities

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.

Candidate profile

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.

What makes it remarkable

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.

Meet Jack

Thumbnail for Meet Jack

Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.

How does this work?

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 it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

Find a job withJack

Ready to find your next role?

Talk to Jack for 10 minutes and see your first matches.