Freelance – Senior Java Developer – Planned Start in January 2026.

We are looking for an experienced Java developer to join our Signalling Design Platform team for various projects. You will collaborate within an Agile environment to develop innovative and cyber-secure solutions. Organisatie Your Role: - Work proactively and independently on challenging projects - Contribute to the business objectives of the projects - Maintain a user-centered mindset in all your tasks - Be an active member of an Agile/Scrum team Functie Profile: - Proactive and independent worker - Strong interest in business with a user-focused vision - Experienced Agile/Scrum team player Functie-eisen Technical Skills and Experience Required: - Languages: o Dutch (A2: Beginner - understanding) o English (B1: Intermediate) o French (C2: Fluent/native) - Knowledge and experience with cryptography libraries such as Bouncycastle, and algorithms including 3DES and AES - Experience with Angular 2 - Experience with Java 17 - Experience with relational databases (MySQL, MariaDB, and/or Oracle) - Experience with ADFS - Experience with SpringBoot, SpringData, Spring Security, and/or Spring Batch - Experience with JPA, Hibernate - Experience with unit testing frameworks such as JUnit, Mockito, and/or PowerMock - Experience with OpenShift and/or Jenkins - Strong Java skills - Strong Agile/Scrum experience - Knowledge of CyberArk and Conjur (not mandatory) - Knowledge of Design Patterns (not mandatory) - Knowledge of EN50.128 standard (not mandatory) - Knowledge of UNISIG Subset-038 and Subset-114 standards (not mandatory) - Experience with Git, GitLab, and SonarQube

Location: Brussel, BE

Posted Date: 11/5/2025