Founding AI Engineer

W Talent; London; Hybrid; GBP 80,000 - 120,000; Full time

Job summary

A venture-backed AI startup in London seeks a Founding AI Engineer to lead the development of an innovative LLM-based platform for financial analysis. The role promises competitive compensation of £80k-£120k plus equity, with a hybrid work model emphasizing collaboration. Ideal candidates will have extensive experience in LLM applications and a strong programming foundation in Python. Join us in redefining financial services with cutting-edge AI technology.

Benefits

Health insurance (coming soon)

Relocation support

Meaningful equity

Qualifications

• Strong engineer with fluency in Python.
• Experience building LLM applications like RAG and fine-tuning.
• A power user of LLMs in daily work.

Responsibilities

• Lead development of the agentic LLM system.
• Design robust pipelines for complex financial documents.
• Rapidly prototype and deploy across the full stack.

Skills

Fluency in Python

Experience building LLM applications

Autonomous problem-solver

Curiosity about financial analysts

Job description

Overview

Founding AI Engineer - Financial LLM Platform

London (Hybrid, 3-5 days/week) • Full-Time | £80k-£120k + equity

A venture-backed AI startup is building a cutting-edge LLM-based platform for financial analysis. We're automating core analyst workflows in financial services by deeply integrating enterprise knowledge with agentic AI. Having just completed a top-tier accelerator and closed our pre-seed round, we're seeing strong early traction and are hiring a Founding Engineer to help us move fast and build category-defining tech.

What You'll Do

• Lead development of our agentic LLM system, ensuring it answers accurately and consistently
• Design robust pipelines to parse, index, retrieve, and cite data from complex financial documents
• Build internal evaluation tooling and feedback loops to measure answer quality
• Rapidly prototype and deploy novel ideas across the full stack

What We're Looking For

• Strong engineer with fluency in Python
• Experience building LLM applications (RAG, prompting, fine-tuning, evals)
• A power user of LLMs in day-to-day work (and life)
• Autonomous problem-solver who thrives in ambiguous environments
• Curiosity about how financial analysts think, work, and make decisions

Why Join?

• High ownership from day one - shape the tech and culture
• Competitive salary (£80k-£120k) + meaningful equity
• Relocation support & in-person collaboration in London (3-5 days/week)
• Health insurance (coming soon)
• Work at the frontier of AI in a high-impact vertical