Hybride | Senior Full Stack Java Developer | Diegem, Belgium

For more than 30 years, ILIAS Solutions has helped defense organizations improve logistics, maintenance, asset management, and operational readiness through integrated software solutions. Today, we are building the next generation of that platform. As a Senior Full Stack Java Developer, you help shape software that supports critical operational processes within defense organizations. You contribute to a platform that continues to evolve through new customer requirements, new capabilities, and new operational challenges. Working alongside analysts, architects, product owners, and experienced software engineers, you help create solutions that support defense organizations around the world. If you enjoy solving difficult problems, understanding how systems interact, and building software that creates real operational value, this is an opportunity to work on challenges that extend far beyond technology alone.

Meaningful Work in a Mission Driven Environment

Turning Operational Complexity into Trusted Software

Defense organizations operate in environments where personnel, qualifications, maintenance activities, equipment, and logistics processes are closely connected. Decision makers depend on accurate information to understand whether people are qualified, assets are available, and operational objectives can be achieved. A commander may need visibility into whether personnel, equipment, and supporting resources are ready for a planned mission. A maintenance manager needs insight into asset availability. A logistics specialist relies on accurate information to support operational planning. Your work helps transform large amounts of operational information into software that provides clarity, confidence, and actionable insight.

Complex Challenges, Clear Solutions

Understanding Before Building

Customers rarely arrive with detailed technical specifications. They arrive with operational challenges. Success in this role comes from understanding how processes, systems, people, and business rules interact within a larger operational environment. You analyse workflows, identify dependencies, uncover exceptions, and understand the logic behind operational decision making. You are not simply implementing predefined requirements. You help discover the rules, relationships, and operational logic behind a challenge and translate them into software solutions that remain reliable, maintainable, secure, and scalable as requirements evolve. You work closely with architects, analysts, and product owners to shape solutions that fit both the operational reality and the technical direction of the platform. The software is built in Java, and the real challenge lies in understanding the operational complexity behind it.

The Impact You Help Create

Building Confidence Through Reliability

Behind every readiness dashboard, maintenance workflow, qualification record, and operational report are people who rely on accurate information. Your work helps ensure that users can trust the information they receive and make decisions with confidence. That trust is built through secure design, thoughtful engineering, clean code, and a long term focus on quality. You take pride in building software that continues to deliver value as the platform evolves.

Your Mission

How You Create Value

• Collaborate within a Scrum team applying Domain Driven Design principles
• Analyse operational requirements and translate them into software functionality
• Design, develop, and maintain enterprise applications using Java and Spring Boot
• Build and enhance REST APIs and backend services
• Contribute to frontend development where required
• Write clean, maintainable, and well tested code
• Participate in code reviews and technical discussions
• Troubleshoot technical and functional challenges across the full stack
• Translate customer feedback into product improvements
• Ensure applications remain secure, scalable, reliable, and maintainable
• Contribute to knowledge sharing and continuous improvement within the team, To translate complex operational challenges into reliable software, we work with technologies including Java, Spring Boot, REST APIs, PostgreSQL, Oracle, React, Git, Maven, Docker, JUnit, Jenkins, SonarQube, and Mend. These technologies form the toolkit we use every day to build the next generation of the ILIAS platform.

Working Across Teams and Functions

You work closely with analysts, architects, product owners, and fellow developers to translate operational challenges into practical software solutions. By combining technical expertise with strong communication skills, you help connect customer needs, operational realities, and technical implementation.

Do you have experience in Spring Boot?, * You enjoy turning complexity into clarity.

• You have developed a strong foundation in software engineering through higher education in Computer Science, Software Engineering, Information Technology, or through equivalent professional experience.
• Over the years, you have gained experience developing enterprise applications using Java, Spring Boot, REST APIs, relational databases, and modern development practices.
• You can take a challenge that is difficult to explain, break it down into understandable concepts, and translate it into reliable software solutions.
• You recognise patterns, identify dependencies, and understand how technology, processes, and business rules come together to support operational outcomes.
• You communicate clearly and work effectively with both technical and functional stakeholders.

You work in an environment where software engineering, operational readiness, logistics, maintenance, qualifications, and asset management come together. The role offers technical depth, responsibility, and the opportunity to contribute directly to the continued evolution of a platform used by defense organizations around the world. Every challenge provides an opportunity to strengthen both your software engineering expertise and your ability to solve complex operational problems. Grow in a Mission Driven Environment As ILIAS continues to expand internationally and further strengthens its position within the defense technology sector, the platform continues to evolve alongside the operational needs of its customers. You contribute to software that helps organizations improve visibility, control, and decision making in environments where reliability, readiness, and operational effectiveness matter every day. Build Capability Over Time Learning is embedded in the way we work. Through exposure to complex operational environments, evolving customer requirements, and experienced colleagues, you continue to develop both your technical expertise and your understanding of the operational domain. Supported by structured development opportunities and a modern Learning Management System, you gain visibility into future growth paths while building expertise in your current role. Contribute to What Comes Next As ILIAS continues to evolve its platform, new operational challenges, technologies, and customer requirements continue to emerge. By combining technical expertise with analytical thinking and curiosity, you help shape software that supports readiness, maintenance, logistics, qualifications, and asset management for defense organizations worldwide., In defence operations, timing and reliable information shape every decision. Many organizations still rely on fragmented systems, limiting visibility and slowing execution. ILIAS Solutions connects logistics, maintenance, and operations into one integrated platform. This creates a single source of truth and enables teams to act on real time data across strategic, operational, and tactical levels. Large volumes of operational data move continuously between systems. This data reflects maintenance cycles, logistics flows, and asset readiness. Accuracy and consistency directly impact operational outcomes.