AI Data Scientist - Fintech Intelligence in Production

Dolfin AI; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Meaningful equity

In-person role in London

Real production AI systems experience

Job summary

Dolfin AI is seeking an AI Data Scientist to own the intelligence layer powering our agentic financial ops API. You will read financial documents, determine relevance, and decide whether to act or escalate, across AR, AP, expenses and more. This is a hands-on role in production with real SMBs.

You will build evaluation harnesses, calibration methods, and corrections flywheels, collaborating with founders to set accuracy goals. Southbank, London, full-time, in-person.

Qualifications

• 3+ years shipping applied ML or AI systems into production.
• Hands-on with LLMs in production: structured output, tool calling, retrieval, prompt and pipeline iteration against measured outcomes.
• Strong production Python. You ship code, not notebooks.
• Experience in a domain where being wrong is expensive (fintech/compliance).
• Genuinely autonomous: take an ambiguous accuracy problem and ship the improvement.

Responsibilities

• Own extraction and matching across AR, AP, expenses and more (invoices, POs, remittances, bills, receipts, card transactions).
• Own confidence scoring and threshold calibration; balance correctness with usability.
• Solve cold start for new platforms with limited labelled data.
• Build evaluation infrastructure: gold sets, regression suites, per-platform accuracy tracking.
• Build the correction flywheel: fixes become measurable accuracy gains.
• Turn written rules into executable, explainable logic.
• Partner with founders on where the accuracy bar sits and what we ship next.

Skills

Applied ML production

Python production code

LLMs in production

Evaluation harnesses

Autonomy

Problem solving

Tools

Python

APIs

Job description

Dolfin AI is seeking an AI Data Scientist to own the intelligence layer powering our agentic financial ops API. You will read financial documents, determine relevance, and decide whether to act or escalate, across AR, AP, expenses and more. This is a hands-on role in production with real SMBs.

You will build evaluation harnesses, calibration methods, and corrections flywheels, collaborating with founders to set accuracy goals. Southbank, London, full-time, in-person.