Server-side Developer (Java/Kotlin)

We are looking for a mid-level server-side developer to join our team in Barcelona. As part of the server-side development team you will develop high loaded back-end services and distributed systems for our multiplayer game CATS and ensure the proper function and maintenance of all product and service deliverables.

So if you are a quick learner, agile, communicative, and self-driven, this might be a great opportunity for you!


  • Development of high-load game backends
  • Support and optimization of current systems
  • Improvements in the development process and communication


  • A minimum of 2-3 years of work experience
  • A rather solid knowledge of Java8/Kotlin or higher
  • Experience with Netty (or anything in the same vein) and networking in general
  • Experience with writing concurrent code and distributed systems


  • Experience with SQL & NoSQL databases. Cassandra and Redis in particular would be a plus
  • Experience in developing high-load backend systems
  • Testing skills will be a plus (unit testing, functional testing, performance, integration, etc.)
  • Experience with Linux, Git, Maven/Gradle/SBT
  • Skills in DevOps
  • A burning desire for game development


  • A growing company with inspiring colleagues from all over the world
  • Flexible working hours
  • Social budget (Sodexo card with 12€ per working day, gym, public transportation, etc.)
  • Private health insurance
  • Educational budget
  • Relocation support
  • Language classes
  • An amazing office with a great view

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