Java Backend Engineer — Scalable Systems & Open Source

Capgemini; København; On-site; DKK 600,000 - 900,000; Full time

Job summary

Capgemini Denmark is seeking a Java Engineer to design, build, and operate scalable backend systems using modern Java and open‑source frameworks. You will work close to the core technology stack, collaborating with engineers, architects, and product stakeholders to translate business needs into production‑ready solutions.

The role emphasizes clean code, testing, observability, and DevOps practices, with opportunities to contribute to open‑source ecosystems and modern architectures.

Qualifications

• Experience with Java and JVM concepts in backend systems.
• Proficiency with Spring Boot and related open‑source Java frameworks.
• Experience with testing (JUnit, Groovy/Spock) and DevOps tooling (Git, Maven/Gradle, Docker, CI/CD).

Responsibilities

• Design, build, and maintain backend services and APIs in Java.
• Ensure production readiness with automated tests, logging, monitoring, and tracing.
• Collaborate with engineers, architects, and product stakeholders to translate requirements into robust solutions.

Skills

Java

JVM concepts

Spring Boot

Kafka

Elasticsearch

JUnit

Groovy/Spock

Git

Maven/Gradle

Docker

CI/CD

Tools

Kubernetes

Job description

Capgemini Denmark is seeking a Java Engineer to design, build, and operate scalable backend systems using modern Java and open‑source frameworks. You will work close to the core technology stack, collaborating with engineers, architects, and product stakeholders to translate business needs into production‑ready solutions.

The role emphasizes clean code, testing, observability, and DevOps practices, with opportunities to contribute to open‑source ecosystems and modern architectures.