Web Developer Senior

About Cronos Europa
Cronos Europa is a leading IT and digital transformation partner dedicated exclusively to European Institutions and agencies, delivering mission-critical solutions that shape Europe's digital future. As part of the Cronos Group, one of the most innovative and fastest-growing tech ecosystems in Europe, we benefit from a vast pool of expertise and cutting-edge capabilities. With over 1,000 specialists across Belgium, Luxembourg, and the Netherlands, we combine deep institutional knowledge with strong engineering excellence to support long-term, high-impact EU programmes requiring reliability, scalability, and innovation.
About the job
We are looking for an experienced Web Developer to join our team in Brussels and contribute to the development, maintenance and continuous improvement of a key Enterprise Records Management System within a European institutional environment.
You will work across the software development lifecycle, from analysing requirements and designing solutions to development, testing, deployment and application support. A strong focus will be placed on corrective and evolutionary maintenance, ensuring that applications remain reliable while continuously adapting to new business and technical requirements.

Responsibilities

· Develop, maintain and improve web applications and software solutions.
· Analyse business and technical requirements and translate them into effective technical solutions.
· Implement corrective and evolutionary maintenance, including bug fixes, refactoring and new functionalities.
· Participate in solution design and implementation.
· Develop and maintain high-quality, maintainable source code.
· Create and maintain automated unit tests, contributing to functional and system testing.
· Support application builds, releases and deployments.
· Ensure the availability and continuity of applications under maintenance.
· Perform configuration management and provide third-level technical support.
· Contribute to service request, incident, problem and change management activities.
· Produce and maintain comprehensive project, application and technical documentation.
· Collaborate closely with business stakeholders, project managers, technical teams and infrastructure teams.
· Participate in technical and business meetings related to the applications in scope.
· Contribute to knowledge sharing and knowledge transfer to ensure long-term service continuity.
Specific Expertise
· Web and software development
· Software development lifecycle
· Corrective and evolutionary application maintenance
· Functional analysis and requirements interpretation
· Solution design and implementation
· Source code and version management
· Automated unit testing
· Functional and system testing
· Build and deployment processes
· Configuration management
· Third-level application support
· Incident, problem and change management
· Technical documentation and knowledge management
Skills and Competencies
· Strong web/software development skills
· Excellent technical and analytical capabilities
· Ability to understand business requirements and translate them into practical technical solutions
· Good understanding of software quality, testing and application maintenance
· Strong troubleshooting and problem-solving skills
· Ability to produce clear and comprehensive technical documentation
· Strong communication and collaboration skills
· Ability to work effectively with both technical and business stakeholders
· Good understanding of structured application development and maintenance methodologies
· Good knowledge of English, particularly for producing technical and project documentation
· Previous knowledge of European institutional workflows and business environments is considered an advantage.
If you wish to integrate a dynamic structure on a human scale while working with the latest technologies, don't wait anymore and join Cronos!