Zealous Agency
Senior AI Engineer
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Senior AI Engineer
Remote (UK-Based Only)
£90,000 – £110,000 + Equity
About the Company
An early-stage AI startup with a hefty seed round and a small but growing team that operates in a space ripe for disruption. Their platform serves large, compliance-heavy enterprises that need to make fast, high-stakes authenticity decisions.
Under the hood, the company is replacing brittle traditional pipelines with multi-agent AI. It's a really ambitious problem they’re tackling, with real-world impact. There's clients lined up and they're expanding rapidly.
The Role
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You'll work directly on the core AI systems. This means designing and improving agent pipelines that coordinate LLMs and specialised analysis tools. This is more than just API integration you'll be shaping how autonomous agents reason with complex and ambiguous evidence.
This is a role for people who build systems end-to-end. It’s senior level role where you’ll work with autonomy and in direct communication with the founders. It’s all about taking responsibility for the platform and really driving it whilst working closely with a small, very bright team. Speed and efficiency are crucial.
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What They’re Looking For
Strong experience in:
- Python
- Working with LLMs: structured output, multi-step reasoning, prompt calibration for reliability
- AWS, S3, Lambda, IAM, AI
- LLM/VLM observability tooling - e.g. Langfuse, Datadog, or similar (crucial)
- Testing non-deterministic AI systems
- Experience with agent orchestration frameworks (LangGraph, LangChain, or similar)
If you’re skill set lines up with this and you’d like to find out more, apply with a copy of your CV or reach out to Ben Greensmith.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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