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Senior Java Developer (Cequeliños)

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Mid‑Senior Java Engineer (Contract)

We’re currently seeking an experienced Java Engineer to join a growing team working on a modern, cloud‑based platform. This is a hands‑on contract role focused on building and enhancing backend services and APIs within a scalable architecture.

What you’ll be doing:

  • Developing and maintaining backend applications using Java and Spring Boot
  • Designing and improving RESTful APIs and system integrations
  • Writing clean, testable, and maintainable code
  • Contributing to architectural discussions and technical decision‑making
  • Participating in code reviews, including validating AI‑assisted contributions
  • Supporting testing efforts (unit and integration)
  • Working closely with cross‑functional teams across engineering, QA, and product
  • Troubleshooting issues across development and live environments

Tech environment:

  • Java (11+) with Spring Boot
  • PostgreSQL and relational databases
  • CI/CD pipelines (e.g. Jenkins or similar)
  • Docker (Kubernetes exposure beneficial)
  • Cloud platforms (AWS experience is advantageous)
  • Testing frameworks such as JUnit and Testcontainers
  • Monitoring and observability tools

What we’re looking for:

  • Proven experience in Java backend development at mid‑senior level
  • Strong knowledge of Spring Boot and API design principles
  • Solid understanding of modern development practices and workflows
  • Experience working with databases (PostgreSQL preferred)
  • Ability to take ownership and work independently
  • Comfortable collaborating in technical discussions and code reviews
  • Experience working with AI‑assisted development tools is a plus
  • Strong communication skills

Nice to have:

  • Cloud experience (especially AWS)
  • Containerisation and orchestration (Docker/Kubernetes)
  • Microservices architecture exposure
  • Performance tuning and debugging experience
  • Familiarity with observability practices
  • Additional scripting languages (e.g. Python or Groovy)

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Senior Java Developer (Cequeliños)

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