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Full Stack Engineer

Radley James· London Area, United Kingdom· £120,000–£150,000/yrEquitySponsorship
Posted 20 Sept 2026 · Added 20 Sept 2026, 12:55
Radley James4.0 (4)Recruitment agencyfounded 2009
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Senior Full Stack Engineer (Typescript / Next.JS) – London

Package

Up to £150,000 + equity

London (in-person, 5 days/week)

Visa sponsorship available

We’re working with a fast-growing AI startup building software that’s transforming how large industrial and infrastructure companies operate. This isn’t another chatbot, it’s AI applied to real-world environments where efficiency, safety, and decision-making matter.

They’ve already secured major enterprise customers and are heading into Series A with strong product-market fit and rapid growth.

The Role

This is a highly product-focused full stack role with true end-to-end ownership. You won’t be picking up tickets, you’ll be speaking directly with users, defining problems, designing solutions, and shipping them.

You’ll be working on systems that:

Turn voice, images, and field data into structured outputs using AI

Handle large volumes of unstructured data and context

Power workflows used in complex, real-world environments

Balance offline/online functionality in challenging conditions

What You’ll Be Doing

Working directly with users to understand workflows and pain points

Designing and building full-stack features from scratch

Architecting systems that integrate AI into real-world use cases

Improving how data is captured, processed, and surfaced

Shaping product direction alongside founders

What We’re Looking For

3+ years experience as a full stack engineer

Strong product mindset and ownership mentality

Experience building and shipping end-to-end systems

Comfortable working with ambiguity and making decisions

Interest in AI-driven products and real-world applications

Package

£120,000 – £150,000 + equity

London (in-person, 5 days/week)

Visa sponsorship available