Applied AI Engineer
Location
london, london
Job Type
Full-time
Category
Other-General
Posted
June 11, 2026
Prototype, evaluate, ship, measure, improve.
Design evals that measure what matters, driving meaningful improvements
Shape and ship what's next - high ownership
The craft is in careful prompting, tight loops, sharp evals, and spotting when the agent's quietly wrong.
Top-uni CS / maths / engineering / science, or equivalent in what you've built.
Shipped production LLM systems — RAG, prompting, agents. You've worked somewhere fast — startup or strong tech team — and make good calls on imperfect information.
You know software engineering: you’ve launched systems, responded to incidents, designed for failure
You scope problems, own solutions, and help decide what we build next.
Small team — it matters.
Every business needs to know who they’re really working with whether it’s suppliers, investors, partners, or third parties. At Xapien, we’re reinventing how organisations do that, combining speed, scale and accuracy with cutting-edge AI.
Since 2018, we...
Design evals that measure what matters, driving meaningful improvements
Shape and ship what's next - high ownership
The craft is in careful prompting, tight loops, sharp evals, and spotting when the agent's quietly wrong.
Top-uni CS / maths / engineering / science, or equivalent in what you've built.
Shipped production LLM systems — RAG, prompting, agents. You've worked somewhere fast — startup or strong tech team — and make good calls on imperfect information.
You know software engineering: you’ve launched systems, responded to incidents, designed for failure
You scope problems, own solutions, and help decide what we build next.
Small team — it matters.
Every business needs to know who they’re really working with whether it’s suppliers, investors, partners, or third parties. At Xapien, we’re reinventing how organisations do that, combining speed, scale and accuracy with cutting-edge AI.
Since 2018, we...