Senior Full Stack Developer

Eden Smith Limited; Greater London; Hybrid; GBP 80,000 - 105,000; Full time

Job summary

Eden Smith Limited in London is seeking a Senior Full Stack Developer to lead the build of an internal Skills Marketplace. You will own the MVP technical delivery, lead a small engineering pod and collaborate with business stakeholders to shape a solution that drives user adoption.

The role combines hands-on development with technical leadership, leveraging Kotlin/Spring on the back end and React on the front end, plus AI-assisted tooling to accelerate design and delivery.

Qualifications

• Proven experience leading technical teams.
• Strong full stack web development experience.
• Hands-on experience with React, Kotlin and Spring.
• Understanding of AI-assisted development and modern tooling.

Responsibilities

• Lead a small development pod through the design and delivery of an MVP Skills Marketplace platform.
• Take ownership of the day-to-day technical direction and delivery of the project.
• Work directly with stakeholders and end users to understand requirements, usage and adoption.
• Utilise Claude or similar AI-powered development tools to generate initial solution designs and accelerate development.
• Act as the primary technical point of contact between the development team, stakeholders and the wider project team.
• Drive best practices across application design, development and delivery.

Skills

React

Kotlin

Spring

Team leadership

AI tooling

Tools

Claude

OpenAI Codex

Google Gemini

Job description

Senior Full Stack Developer - React/Kotlin/Spring

£500 per day | Inside IR35 | 3 months + Likely Extension | London - 2 Days per Week | ASAP Start

We are seeking an experienced Senior Full Stack Developer to lead the development of an internal Skills Marketplace platform for an established well-known retail business.

This is an opportunity to take ownership of the technical delivery of an MVP, leading a small engineering pod and working closely with business stakeholders to shape a solution that drives user adoption.

The platform is a two-tier web application, utilising Kotlin and Spring on the Back End and React on the Front End. You will combine hands-on full stack development with technical leadership, stakeholder engagement and the use of modern AI engineering tools to accelerate solution design and delivery.

Key Responsibilities

• Lead a small development pod through the design and delivery of an MVP Skills Marketplace platform.

• Take ownership of the day-to-day technical direction and delivery of the project.

• Work directly with stakeholders and end users to understand requirements, usage and adoption.

• Utilise Claude or similar AI-powered development tools to generate initial solution designs and accelerate development.

• Act as the primary technical point of contact between the development team, stakeholders and the wider project team.

• Work collaboratively within a multidisciplinary engineering environment.

• Drive best practices across application design, development and delivery.

Essential Experience

• Proven experience leading technical teams or small engineering squads.

• Strong full stack development experience using React, Kotlin and Spring.

• Experience designing, building and delivering full stack web applications.

• Understanding of AI engineering, AI-assisted development and modern tooling.

• Confident communicating directly with business stakeholders and end users.

• Ability to take ownership, work autonomously and operate effectively in a fast-paced, startup-style environment.

• Strong problem-solving and technical decision-making skills.

Desirable Experience

• Experience using Claude, OpenAI Codex or Google Gemini.

• Claude certification or other relevant AI tooling certifications.

• Previous experience delivering MVPs or internal business platforms.

Contract Details

• Day Rate: £500 per day

• IR35 Status: Inside IR35

• Location: London

• Working Pattern: 2 days per week onsite, remainder remote

• Start Date: ASAP

• Position: Contract

Interviews and selection will be taking place as soon as possible.