Senior Full Stack Developer | £80k GBP in London

Senior Full Stack Developer | £80k GBP in London

London Full-Time On-site
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Our client is a fast-growing SaaS company building web and mobile products used worldwide for organising, engagement, and field operations. They’re small, sharp, and engineering-led — shipping fast, solving real problems, and working in a genuinely collaborative environment.
They’re now adding a fourth A-player Full-Stack Developer to their tight 3-person engineering team. If you want real ownership, influence over architecture, and the chance to shape a product used at global scale — not just churn through tickets — this is your role.
Core Engineering Responsibilities Deliver major features end-to-end on the core web platform — backend, API, and front-end integration.
Design and build scalable server-side logic with high reliability and performance.
Own relational database work: schema design, optimisation, and complex SQL queries.
Collaborate deeply with the engineering team on architecture, code reviews, deployments, and shared technical decisions.
Help burn down a growing backlog of features, improvements, and refactors on the main web application.
Over time, contribute to a new Kotlin/Compose Multiplatform mobile app (single codebase for iOS + Android).
Join roadmap, refinement, and cross-functional discussions with Product, Sales, Marketing, and Leadership.
What You Need Deep capability in a server-side language — PHP preferred (Java or similar fine if you transition quickly).
Proven experience building and shipping scalable web apps and APIs.
Confident working in Linux/server environments and debugging across the stack.
Bonus: Kotlin, Android/iOS, or Compose Multiplatform experience.
Must be based in the UK
Compensation & Package
Salary up to £80k GBP
Remote
Pension
Health Insurance
If you want ownership, impact, and the chance to help shape a global product with a small team of A-players — this is where you’ll do the best work of your career!

Senior Full Stack Developer | £80k GBP in London employer: Ingenio Global

Ingenio is an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration in the heart of the UK. As a Technical Director, you will benefit from competitive compensation, including a generous bonus structure, while having the opportunity to lead cutting-edge AI initiatives and complex engineering programmes. The company prioritises employee growth, providing ample opportunities for professional development and engagement with senior clients, making it a rewarding place for those seeking meaningful impact in digital engineering.

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Contact Details:

Ingenio Global Recruitment Team