Senior Backend Engineer

SIX

Full-time Computer Occupations
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Location
Madrid, Community of Madrid, Spain
Posted
June 08, 2026

Job Description

What You Will Do


  • Design, develop, and maintain backend services and REST APIs using Java, Spring, and Spring Boot

  • Build and operate event-driven services using Apache Kafka

  • Develop and maintain applications running on Java application servers such as WildFly

  • Collaborate with engineers and architects on system design, architecture, and technical improvements

  • Ensure reliability, scalability, and performance of production systems

    • What You Bring 

  • Very strong experience with Java backend development and modern backend design principles

  • Experience with Spring and Spring Boot for building microservices

  • Experience with Kafka or other messaging / event-streaming platforms

  • Knowledge of Wildfly/JBOSS is a big plus

  • Experience designing RESTful APIs and working with SQL databases

  • High english level, both writen and spoken, to interact with ou...

    • Job Details

    • Job Type
      Full-time
    • Category
      Computer Occupations
    • Date Posted
      June 08, 2026
    • Application Deadline
      July 18, 2026