Quick overview
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
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Lead a small development pod through the design and delivery of an MVP Skills Marketplace platform.
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Take ownership of the day-to-day technical direction and delivery of the project.
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Work directly with stakeholders and end users to understand requirements, usage and adoption.
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Utilise Claude or similar AI-powered development tools to generate initial solution designs and accelerate development.
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Act as the primary technical point of contact between the development team, stakeholders and the wider project team.
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Work collaboratively within a multidisciplinary engineering environment.
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Drive best practices across application design, development and delivery.
Essential Experience
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Proven experience leading technical teams or small engineering squads.
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Strong full stack development experience using React, Kotlin and Spring.
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Experience designing, building and delivering full stack web applications.
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Understanding of AI engineering, AI-assisted development and modern tooling.
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Confident communicating directly with business stakeholders and end users.
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Ability to take ownership, work autonomously and operate effectively in a fast-paced, startup-style environment.
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Strong problem-solving and technical decision-making skills.
Desirable Experience
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Experience using Claude, OpenAI Codex or Google Gemini.
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Claude certification or other relevant AI tooling certifications.
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Previous experience delivering MVPs or internal business platforms.
Contract Details
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Day Rate: £500 per day
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IR35 Status: Inside IR35
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Location: London
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Working Pattern: 2 days per week onsite, remainder remote
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Start Date: ASAP
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Position: Contract
Interested?
If you are an experienced Senior Full Stack Developer with strong React, Kotlin and Spring experience, alongside the ability to lead a small engineering team and leverage AI tools, please apply with your latest CV.
Interviews and selection will be taking place as soon as possible.
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