Senior AI Engineer — Equity & Growth in FinCrime AI

Project Freelance; Greater London; Remote; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Equity

Bi-Annual Salary Reviews

Annual Equity Refresh

Job summary

Project Freelance in London is seeking a Senior AI Engineer to lead full-stack AI-powered product features and own AI strategy in a fast-growing start-up environment. This on-site role focuses on developing cutting-edge AI systems for financial crime prevention with significant ownership and influence.

You will work across frontend, backend, AI, and infrastructure, collaborating with Product and Engineering teams to deliver customer-focused solutions and innovative compliance tooling.

Qualifications

• 4+ years in a full-stack or product engineering role.
• Strong TypeScript, React, and Node.js development skills.
• Experience with AI/ML systems, prompt engineering, and model fine-tuning.
• Knowledge of computer vision and custom model training.
• Proactive, commercially minded, and ownership-driven.

Responsibilities

• Build and develop full-stack AI-powered product features.
• Develop and optimise LLM, computer vision, and agent-based systems.
• Create evaluation, testing, prompt engineering, and fine-tuning frameworks.
• Work across front-end, back-end, DevOps, and MLOps environments.
• Collaborate closely with Product and Engineering teams to deliver customer-focused solutions.

Skills

Full-stack engineering

TypeScript

React

Node.js

AI/ML systems

Prompt engineering

Model fine-tuning

Computer vision

Job description

Project Freelance in London is seeking a Senior AI Engineer to lead full-stack AI-powered product features and own AI strategy in a fast-growing start-up environment. This on-site role focuses on developing cutting-edge AI systems for financial crime prevention with significant ownership and influence.

You will work across frontend, backend, AI, and infrastructure, collaborating with Product and Engineering teams to deliver customer-focused solutions and innovative compliance tooling.