Senior Full Stack Developer | £80k GBP

Ingenio Global; United Kingdom; Remote; GBP 72,000 - 88,000; Full time

Benefits offered by this job

Pension

Health Insurance

Job summary

A fast-growing SaaS company in the UK is seeking a Full-Stack Developer to join a small engineering team. This role offers ownership and influence over architecture while developing scalable web applications. Candidates should have strong server-side programming skills, ideally in PHP, and experience in collaborative environments. The compensation package includes a salary up to £80k, pension, and health insurance, with the flexibility to work remotely.

Qualifications

• Deep capability in a server-side language, preferably PHP.
• Proven experience in building and shipping scalable web applications.
• Confident working in Linux environments and debugging across the stack.

Responsibilities

• Deliver major features on the core web platform end-to-end.
• Collaborate with the engineering team on architecture and code reviews.
• Contribute to a new Kotlin/Compose Multiplatform mobile app over time.

Skills

Server-side programming in PHP

Experience with scalable web apps

Linux/server environment troubleshooting

Collaboration in engineering teams

Kotlin/Compose Multiplatform experience

Job description

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!