Senior Full Stack Developer | £80k GBP

• Strong full-stack or backend-leaning engineering experience.
• 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.
• Strong SQL skills (MySQL ideal).
• Good JavaScript knowledge and comfortable plugging into front-end logic.

• 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 €90K
• 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!

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.