Java Developer

Enterprise backend in Java: Spring Boot, Quarkus, and proven architecture patterns for complex system landscapes.

  • Java
  • Spring Boot
  • Quarkus
  • Backend
  • Microservices
  • REST API
  • JPA
  • Enterprise
  • Maven
  • Gradle

Java developers working with Spring Boot or Quarkus cover the full range from monolithic enterprise backends to containerized microservice architectures. The ecosystem is mature, the toolchain proven, the patterns widely understood.

Spring Boot for fast, convention-driven development with a broad ecosystem. Quarkus for startup optimization, GraalVM native builds, and resource-efficient operation in cloud environments. In both cases: a strong type system, extensive test support, and a community with answers to almost any question.

Core Skills

Java, Spring Boot, Spring Security, Spring Data, Quarkus, Hibernate / JPA, Maven / Gradle, REST API, gRPC, JWT / OAuth2, PostgreSQL / Oracle / MySQL, Kafka, Docker, Kubernetes, GraalVM Native Image, JUnit / Testcontainers, Microservices, DDD, Hexagonal Architecture

Common skills are foundational skills shared by all our experts. Show common skills Show less
  • Git / GitHub / GitLab
  • Jira / Confluence
  • Slack / Microsoft Teams
  • Scrum / Kanban
  • Agile Methoden
  • CI/CD
  • Code Review
  • REST APIs
  • Docker
  • Linux
  • Technische Dokumentation
  • Deutsch / Englisch
  • Remote-Arbeit

Technology Stack

  • Java
  • Spring Boot
  • Quarkus
  • Hibernate / JPA
  • Maven / Gradle
  • Docker / Kubernetes
  • PostgreSQL / Oracle

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