Senior Fullstack Product Engineer

Oliver Bernard; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Oliver Bernard is seeking a Senior Fullstack Product Engineer to join an early-stage AI technology business building AI-powered software for financial services, helping clients improve efficiency and decision making.

You’ll work across the full stack—front-end, back-end, AI and infrastructure—owning features end-to-end and delivering impact in a fast-moving environment.

This role offers real ownership, hands-on problem solving and the chance to shape product direction as the company scales.

Qualifications

• Strong full-stack software engineering experience with React, Node.js and TypeScript.
• Experience across frontend, backend and infrastructure.
• Interest or experience in AI, LLMs, AI agents and ML.
• Thrives in a fast-paced, hands-on environment.

Skills

Full-stack development

React

Node.js

TypeScript

Infra / DevOps

AI / ML interest

Job description

Senior Fullstack Product Engineer - Would you like the opportunity to join an early-stage AI technology business who are building AI-powered software that automates complex processes within the financial services sector, helping businesses improve efficiency, reduce manual workloads and make better-informed decisions?

This is an exciting opportunity to join a fast-moving team working on cutting-edge AI technology, with the chance to have real ownership and impact on the product. As a Senior Product Engineer, you’ll work across the full engineering stack, building and improving product features spanning frontend, backend, AI and infrastructure.

Requirements

• Strong full-stack software engineering experience, React, Node.js, TypeScript.
• Comfortable working across frontend, backend and infrastructure.
• Interest or experience in AI, LLMs, AI agents and machine learning.
• Someone who thrives in a fast-paced, hands-on environment.