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Collective.work

DevOps Engineer (Java & Jenkins)

Hybrid

Leuven, Belgium

€ 620 /day

Freelance

01-12-2025

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Skills

Communication Java Eclipse CI/CD Jenkins Problem-solving Attention to detail Linux Windows git Maven CI/CD Pipelines Unix/Linux

Job Specifications

Java & Jenkins CI/CD Engineer

Dutch Mandatory

About the Role

We are looking for a skilled Java professional with hands-on experience in Jenkins and CI/CD pipelines. You are comfortable working with Java development tools such as Eclipse and bring a strong understanding of automated build and deployment processes.

In this role, you will maintain and support our Jenkins environment, ensuring reliable, secure, and up-to-date build operations. You’ll also contribute directly to the evolution of a Java-based CI/CD framework and help keep developer tooling stable and efficient.

Key Responsibilities

Maintain and optimize our Jenkins pipeline framework written in Java.

Proactively monitor and assess Jenkins updates and upgrades (core releases, plugins, security advisories) to ensure a secure CI/CD environment.

Perform Jenkins upgrades and validate plugin stability and compatibility.

Troubleshoot and resolve build failures, pipeline errors, and CI/CD performance issues.

Upgrade, maintain, and support Eclipse IDE on Windows, including plugin configuration.

Maintain clear documentation of pipeline processes, configurations, and operational procedures.

Required Qualifications

Strong proficiency in Java (Java 8+).

Solid experience with Eclipse IDE (installation, configuration, plugin management).

Familiarity with build tools such as Ant and Maven.

Hands-on experience with Jenkins and Jenkins Pipelines in a UNIX/Linux environment.

Understanding of Web Services (SOAP).

Strong knowledge of SCM tools such as Subversion (SVN) and Git.

Soft Skills

Ability to work independently and manage priorities effectively.

Strong problem-solving and troubleshooting abilities.

Quality-driven mindset with attention to detail.

Clear communication skills and strong team collaboration.

Nice to Have (Optional)

Experience writing shared pipeline libraries or custom Jenkins plugins.

Familiarity with CI/CD security best practices.

Exposure to Windows enterprise environment management for dev tooling.

Work Environment

Tech stack: Java 8+, Jenkins, Ant, Maven, SVN, Git, SOAP services

Platforms: UNIX/Linux (CI/CD), Windows (Eclipse tooling)

Collaboration: Dev, Build/Release, and Infrastructure teams

About the Company

Une plateforme, deux volets : 1) un volet recruteur, la MegaSearch, pour sourcer, contacter et recruter sans commission les 500,000 freelances de Collective (vive l'IA !). => Par ici pour avoir une démo de l'interface Recruteur : https://calendly.com/juliette-collective-work/demo-collective-work-clone 2) un volet freelance pour se rendre visible et joinable des recruteurs, développer son réseau, et se professionnaliser via des outils de gestion. Faites comme 2,500 ESN, entreprises, cabinets et agences (Theodo, Artefact, Cher... Know more