Senior Java Developer tech Senior Java Developer Outside IR35 | Ful

Senior Java Developer | Travel-tech Senior Java Developer | £300-400 / day | Outside IR35 | Fully Remote within Europe

A fast-growing travel-tech organisation is embarking on a major product evolution and is looking for an experienced Senior Java Developer to join their team. This is a key engineering role working on high-traffic, consumer-facing systems used across Europe.

• Lead the evolution of a large-scale Java, Springboot, and MySQL , ensuring it can support a new universal architecture across multiple products.
• Design and implement new backend features, Unit Testing, API testing, and system improvements to support both web and mobile clients.
• Contribute to shared architecture, functional models, and backend design patterns to unify services across the organisation.

• Senior-level expertise building and maintaining commercial, production-scale applications.
• Deep proficiency in:
• Java
• Springboot (server-side development, API design)
• MySQL (performance optimisation, complex queries, relational modelling)
• Experience architecting and maintaining distributed backend systems.
• Strong understanding of integration patterns, API design, and scalable service architecture.

• Node.js, PHP, Mongo
  
  DB, Kafka, React (for back office apps)

• 6-month contract — extension highly likely due to roadmap depth
• Outside IR35
• Fully remote within Europe

Apply now by sending your CV to alfie or by replying directly to this advert.