As a member of our development team, you will contribute to the design, development, and optimization of secure, scalable, and high‑performance back-end solutions. You will work closely with front-end developers, architects, product owners, and security teams to build robust software and ensure seamless integration across all components.
Responsibilities:- Develop and maintain back-end web applications.
- Integrate user-facing elements developed by front-end teams with server-side logic.
- Implement core business logic and ensure code consistency.
- Create and maintain servers, databases, and functional infrastructure.
- Design and implement efficient data storage solutions.
- Ensure proper security and data protection practices.
- Optimize applications for maximum speed and scalability.
- Design, develop, and document APIs.
- Participate in the design and creation of scalable software architectures.
- Take technical lead on projects when required.
- Maintain code integrity, structure, and organization.
- Write clean, maintainable, and reliable back-end code.
- Compile and analyze data, processes, and code to troubleshoot and identify improvements.
- Test, diagnose, and fix bugs or other coding issues.
- Ensure technical solutions meet both functional and user needs.
- Produce technical documentation.
At least 1 year of hands-on experience in each of the following categories:
- Back-end: Vert.x, Kotlin, Java (> 17), Spring Boot (WebFlux), Hibernate
- Architecture & Integration: Microservices Architecture, API-driven Development, AS4
- Database: MongoDB, PostgreSQL, Virtuoso Triple Store, OpenSearch
- Containerization & Orchestration: Docker, Kubernetes
- Security: OpenID Connect, OAuth2, TLS, Keycloak
- Security Testing & Dependency Management: SAST / DAST, Fortify, SonarQube, Sonatype, Dependency-Track, Maven
- Collaboration & Productivity Tools: JIRA, Confluence, Office 365, SharePoint
- Bachelor’s or Master’s degree in IT, Computer Science, or a related field.
- Strong analytical skills and ability to solve complex issues.
- Good communication and interpersonal skills.
- Fluency in English is required; French is an asset.
- An attractive salary package.
- A good work-life balance.
- The opportunity to work with cutting-edge technologies in an entrepreneurial environment.
- Tailor-made training programs based on your development needs.
- A friendly, human-scaled workplace.
If you want to join a dynamic structure on a human scale while working with the latest technologies, don’t wait any longer—join Cronos!
Top Skills
What We Do
Cronos Europa is an IT and digital communications company uniquely dedicated to serving the European institutions, agencies and bodies.
From the European Union to EUROCONTROL, we partner with a range of supranational and interinstitutional authorities.
Our mission is to arm them with the tools they need to thrive in the digital age.
Every aspect of our organisation is designed to complement their capabilities - from our people to our processes and our premises.
Our brand combines the expertise of former companies Cronos International and C-Dev, with the creative skills of Inspiiro and the breadth of capabilities of the Cronos Group.
Today, Cronos Europa employs over 1,000 people in offices across Belgium, Luxembourg and the Netherlands, serving institutions across diverse framework contracts.
Cronos Europa is part of the Cronos Group, one of the largest IT service providers in the Benelux, employing over 8,000 people across 200 competence centres.
By leveraging the Group’s resources, Cronos Europa can help clients extract value from new and emerging technologies, for everything from Artificial intelligence to Zg Quantum.
For spontaneous applications: https://cronoseuropa.breezy.hr/p/7a64ee973c6701-spontaneous-application?state=published
