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Founding Applied Scientist at fast-growing AI startup

Are you a world-class expert in reinforcement learning or search systems? Join a fast-growing AI startup in London as a Founding Applied Scientist and architect the next generation of agentic superintelligence. This isn't just another RAG role—you'll be building foundational long-horizon memory and synthetic world models for autonomous agents. Backed by top-tier VCs, this role offers the rare chance to define how AI agents learn, reason, and scale within the enterprise from day one.

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Location

London, United Kingdom

Compensation

Not Disclosed

Company

Confidential company

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Role overview

As a Founding Applied Scientist, you will architect the foundational memory, reasoning, and learning capabilities of autonomous agentic systems. You will transcend traditional ML engineering by pioneering technologies for long-horizon planning and knowledge representation. This role focuses on building enterprise-grade superintelligence by combining cutting-edge research with world-class engineering to define the future of agentic AI.

About the company

Fast-growing AI startup

What you will do

  • Design and scale foundational long-horizon memory and knowledge infrastructure that enables agents to reason over evolving enterprise contexts.
  • Develop state-of-the-art search and retriever systems using novel indexing techniques and new forms of knowledge representation.
  • Apply deep expertise in reinforcement learning and reasoning to guide agentic behavior in complex, multi-step tasks.

Who this is a fit for

  • Possesses world-class expertise in search, retrieval, or reinforcement learning with a track record of applying research to production systems.
  • Demonstrates strong engineering fundamentals to design and deploy robust, enterprise-grade systems capable of scaling to trillion-agent interactions.
  • Thrives in high-autonomy environments and is driven to define the foundational technologies for enterprise-level agentic superintelligence.

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Why this role is remarkable

  • You will be a founding member of the team, directly shaping the core architecture of next-generation autonomous agents.
  • Backed by top-tier VCs, the company offers the stability of significant funding with the high-impact environment of an early-stage startup.
  • The role moves beyond standard RAG, allowing you to innovate on unsolved problems in multi-stage retrieval and synthetic world models.

How Jack & Jill work together

Jack
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Jill
I recruit from Jack’s network and make the intro when I spot a great match.
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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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