Senior Software Engineer

Full-Stack Java Developer (Medior / Senior)

Location: Brussels, Belgium / Nearshore Europe
Employment type: Full-Time | Permanent Employment or B2B/Freelance

We are currently looking for experienced Full-Stack Java Developers to strengthen the Cronos Europa team and contribute to long-term software development projects for one of our international clients.

We are considering both onshore candidates based in Belgium and nearshore professionals based in Europe.

This is a medior/senior-level opportunity for developers who enjoy building reliable, scalable enterprise applications, working with modern technologies and contributing to the full software development lifecycle.

Responsibilities:

• Design, develop and maintain enterprise applications using Java and Spring Boot.
• Develop modern, responsive frontend applications using Angular or React.
• Design, implement and maintain REST APIs and integrations with internal and external systems.
• Contribute to software architecture decisions, including microservices and distributed systems.
• Write clean, maintainable and well-tested code, following software engineering best practices.
• Participate in code reviews, automated testing, troubleshooting and performance optimisation.
• Contribute to CI/CD pipelines, application deployments and continuous improvement initiatives.
• Collaborate closely with business analysts, architects, testers, product owners and other developers.
• Participate in Agile ceremonies, technical discussions and continuous delivery activities.
• Support the maintenance and modernisation of existing applications while contributing to new developments.

Technical skills:

• Java: Strong professional experience with Java, preferably Java 17 or higher.
• Backend: Spring Framework, Spring Boot, REST APIs, JPA/Hibernate and microservices.
• Frontend: Professional experience with Angular or React, TypeScript, JavaScript, HTML and CSS.
• Databases: Strong SQL knowledge and experience with relational databases such as PostgreSQL, Oracle or equivalent.
• Cloud: Experience with Microsoft Azure is a strong advantage.
• DevOps: Familiarity with CI/CD pipelines, Git, Docker and Kubernetes.
• Testing: Experience with unit testing, integration testing and automated testing frameworks.
• Architecture: Understanding of modern software architecture, design patterns and clean-code principles.
• Methodologies: Experience working in Agile/Scrum environments.

Profile:

• Bachelor's or Master's degree in Computer Science, Software Engineering, Information Technology or a related field, or equivalent professional experience.
• Minimum 5 years of professional software development experience, with a strong focus on Java.
• Proven experience in both backend and frontend development.
• Ability to work independently while collaborating effectively within an international development team.
• Strong analytical thinking, problem-solving skills and attention to code quality.
• Experience developing and maintaining complex enterprise applications.
• Fluent English, both written and spoken, is mandatory.
• French is an advantage but not required.
• Proactive attitude, ownership and willingness to learn and adapt to new technologies.

Working arrangements:

We are recruiting for both onshore and nearshore collaboration models.

Onshore – Belgium

• Candidates must be based in Belgium and have valid authorisation to work in the country.
• Hybrid working arrangement, requiring approximately 50% on-site presence in Brussels.
• Permanent employment or B2B/freelance arrangements may be considered.

Nearshore – Europe

• Candidates must be based in Europe.
• Primarily remote working arrangement.
• Approximately 30 working days per year on-site in Brussels, typically organised as five consecutive working days every two months.
• Flexibility in scheduling on-site visits, subject to project requirements.
• Contract arrangements depend on the candidate's country of residence and available employment structures.

Please note that the applicable on-site requirements are mandatory.

Why Cronos Group?

We'll offer you:

• An attractive and competitive compensation package, aligned with your experience and contract arrangement.
• The opportunity to contribute to long-term projects in an international environment.
• A flexible working arrangement combining remote collaboration with meaningful on-site interaction.
• Exposure to modern technologies, enterprise architectures and challenging software development projects.
• Opportunities for continuous professional development and technical growth.
• A collaborative, supportive working environment that values expertise, initiative and ownership.
• The opportunity to develop your career within the Cronos Group, one of Belgium's leading technology ecosystems.

If you're passionate about Java development, enjoy working across backend and frontend technologies, and want to contribute to meaningful, long-term projects in an international environment, we'd be happy to hear from you!

Join Cronos Europa and take the next step in your career.