Founding AI Engineer

Job Description

Founding AI Engineer | AI Start-up | London (On-Site) | High Equity (1–2%+)

A well-funded, seed-stage AI start-up, founded by ex-top-tier consultants, is hiring its first founding AI engineer to help build a new kind of AI-native knowledge platform.

Already live with its first product and early revenue projected (high six-figure ARR this year), the company is now developing a second, more ambitious system that uses LLMs, RAG, and multi-source data ingestion to solve real problems in a complex, high-value industry.

This is a rare opportunity to join early, build real AI systems, and take ownership of core architecture and product direction.

What You’ll Do

• Build and own core AI / ML systems (Python, MLops / LLMops pipelines, integrations, data retrieval)
• Architect and scale a product that works across messy enterprise data (SharePoint, Slack, Outlook, etc.)
• Define infrastructure and engineering best practices from the ground up

What We’re Looking For

Experience with unstructured data, search / re-ranking, or retrieval systems (e.g., RAG...