Lead ML Engineer – LangChain & LLM Systems

Descrial, a startup within a twenty-year-old company, seeks a senior ML engineer to own core LangGraph/LangChain workflows in its London team. You will work hands-on on UK-based systems using Python, FastAPI services, and vector retrieval to drive investment-document analysis with strict cost controls and governance.

You will collaborate with the Head of Engineering, integrate major model providers, and craft scalable, auditable ML solutions for production in a high-stakes environment.

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