Founding AI Engineer — Enterprise Solutions

Cornerstone VC; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Remote-friendly setup

Equity

Learning budget

High-end hardware

Job summary

Leeroo is seeking a Founding Engineer to guide customers from discovery through production rollout and post-launch iteration, turning business problems into robust agentic systems. You’ll collaborate with stakeholders and engineers to access data, integrate agents into enterprise stacks, and deliver rapid production value.

Ideal candidates have advanced degrees in CS/AI, 2+ years shipping AI-powered products, and hands-on experience with LLM/NLP applications, vector databases, and agent

Qualifications

• Master’s/PhD in CS/AI/Data Science (or equivalent experience).
• 2+ years as a hands‑on IC (data scientist, ML/AI engineer, or software engineer) shipping AI-powered products.
• End-to-end experience building and deploying LLM/NLP applications (APIs, back‑end integration; light front‑end when needed).
• Familiarity with agent frameworks, vector databases, and retrieval workflows.
• Clear communicator able to translate complex technical ideas for non‑technical stakeholders.

Responsibilities

• Be a customer-first problem solver: work end-to-end with customers, from discovery to delivery, turning ambiguous asks into scoped, shippable plans with clear ROI, while navigating the messy middle (chasing data owners, mapping processes, wrangling imperfect data/APIs) to show the impact of Leeroo Agents effectively.
• Build state-of-the-art GenAI applications across enterprise use cases by connecting our continuous-learning agents, co-driving transformation with customers.
• Work in a tight loop with Core Research & Product Engineering: as an FDE you surface reusable patterns from real customer work (prototype solutions, test usability, identify what’s generalizable); Core teams then productize those insights into the Leeroo platform/Learning Engine so the next customer needs less custom work and ships faster.
• Join pre-sales and discovery calls to understand needs, shape solution roadmaps, and provide clear technical guidance on Leeroo’s approach and ecosystem choices.

Skills

AI engineering

End-to-end ML deployment

Python

Java

C++

TypeScript/JavaScript

Communication with stakeholders

Education

Master's/PhD in CS/AI/Data Science

Tools

Vector databases

Agent frameworks

Retrieval workflows

APIs

Job description

Leeroo is seeking a Founding Engineer to guide customers from discovery through production rollout and post-launch iteration, turning business problems into robust agentic systems. You’ll collaborate with stakeholders and engineers to access data, integrate agents into enterprise stacks, and deliver rapid production value.

Ideal candidates have advanced degrees in CS/AI, 2+ years shipping AI-powered products, and hands-on experience with LLM/NLP applications, vector databases, and agent