Help Build the Next Generation of Defense Software
How do you evolve a large scale Java platform without losing the operational knowledge it has accumulated over more than 30 years?
That is the challenge at ILIAS Solutions.
This is not a greenfield project and it is not another consultancy assignment. You join at a unique moment. While the current platform continues to support customers worldwide, the next generation of the ILIAS architecture is already taking shape. New capabilities are developed on a modular foundation designed to support future operational readiness while preserving the strengths of today's platform.
Every day, thousands of operational decisions depend on the software we build. A single business rule can influence maintenance planning, asset availability, personnel qualifications, logistics processes, and ultimately mission readiness. Building software in this environment means understanding how those relationships interact and translating them into reliable, maintainable Java applications.
Working with Java 21 and our migration towards Java 25, Spring Boot, REST APIs, PostgreSQL, Oracle, React, Docker, Git, Maven, Jenkins, SonarQube and Mend, you remain hands on while contributing to a mature enterprise software platform used by defense organizations around the world.
If you enjoy solving complex engineering problems, staying close to the code, and building software that continues to evolve over many years, this is an opportunity to make a lasting technical impact.
Meaningful Work in a Mission Driven Environment
Software at ILIAS supports the complete operational lifecycle of defense assets.
An aircraft may become unavailable because maintenance is overdue. A vehicle may remain unavailable because a spare part has not yet arrived. A mission may be delayed because required personnel qualifications have expired.
Your software helps explain those relationships.
Rather than building isolated functionality, you translate highly connected business rules into software that allows users to understand why assets are or are not operationally ready. The result is software that supports informed decisions across maintenance, logistics, planning, and operational readiness.
Complex Challenges, Clear Solutions
Understanding Before Building
Customers rarely arrive with technical specifications.
They arrive with operational challenges.
Success in this role comes from understanding how operational processes, business rules, and system interactions fit together before translating them into software.
You analyse requirements, identify dependencies, and take ownership of user stories from analysis through implementation. Working closely with analysts, architects, and product owners, you deliver software that remains reliable, maintainable, and scalable while the platform continues to evolve.
Although the platform is evolving towards a new modular architecture, this remains first and foremost a hands on Senior Java Developer role. You enjoy building software yourself and continue writing production code every day.
Why Senior Java Developers Join ILIAS-
Build one enterprise platform instead of moving between customer projects.
-
Work with Java 21 today while helping shape the migration towards Java 25.
-
Help modernise a platform that has evolved over more than thirty years.
-
Solve engineering challenges driven by complex operational business rules.
-
Stay hands on while working alongside experienced software engineers, analysts, and architects.
-
Contribute to software that supports operational readiness across defense organizations worldwide.
How You Create Value
Collaborate within a Scrum team applying Domain Driven Design principles- Analyse operational requirements and translate them into software functionality
- Take ownership of user stories from analysis through implementation and delivery
- 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
- Remain hands on in the design, development, testing, and maintenance of software components
- 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
Your Capabilities
What You Bring
You have built enterprise software using Java, Spring Boot, REST APIs and relational databases and enjoy remaining hands on throughout the software development lifecycle.
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 enjoy staying close to the code and take pride in building software yourself. You bring recent hands on experience developing enterprise applications in Java and are comfortable working with modern Java versions, evolving frameworks, and contemporary 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 are fluent in Dutch or French and have a professional command of English
Technology Environment
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
Software at ILIAS is developed by multidisciplinary Scrum teams where software engineers, analysts, architects and product owners work together from business challenge to production.
By combining technical expertise with strong communication skills, you help connect customer needs, operational realities, and technical implementation.
Grow Through Capability and Innovation
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.
Contact
Interested?
Would you like to learn more about the role, the team, or ILIAS Solutions? Feel free to get in touch with François Roskam via [email protected].
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.
