Senior Backend Software Engineer, Auxiliary Squad

Diabolocom UK Ltd • barcelona, cataluña, Spain • Posted June 06, 2026

Location barcelona, cataluña
Job Type Full-time
Category Informática y tecnología
Posted June 06, 2026

Senior Backend Software Engineer

We are looking for a Senior Backend Software Engineer to join our Auxiliary Squad. The squad is responsible for core technical services that ensure secure, high-performance access to the Diabolocom platform. The squad manages critical components such as the API Gateway and Authentication Services, which handle large volumes of traffic and serve as the entry point for all backend systems. In addition, the squad owns Scenario, a product that empowers users to design complex workflows through a no-code, block-based interface.

Technical Stack

  • Languages: Java 21/25, Kotlin
  • Framework: Spring Boot 3.x.x
  • Database: PostgreSQL
  • Message Broker: RabbitMQ
  • Caching: Redis
  • Containerization: Docker/Kubernetes

Team Composition

  • 2 QA engineers
  • 3 backend developers
  • 1 team lead

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