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RELYzIT

Senior Java Developer

Hybrid

Melle, Belgium

Senior

Full Time

11-09-2025

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Skills

Communication Java JavaScript HTML SQL Scrum Problem-solving Linux Redhat Programming Databases git jquery Agile Spring Hibernate Java/J2EE

Job Specifications

Senior Java Developer (Freelance) - 12 Months - Melle

At RELYzIT Talent, we don't recruit -- we build. We unite the top 2% of builders -- engineers, architects, creators -- into a movement across Europe and the GCC. Vetted through our VECTOR7(tm) Signal Stack, you're not just hired, you're chosen. This is more than work. This is where builders build the future.

About the Role

We're seeking a Senior Java Developer (Freelance) to join our client's Data Management domain, supporting critical ICT applications in Market Operations. This is a 12-month freelance assignment based in Melle, where your expertise will directly impact the reliability and evolution of essential business systems. You'll be at the heart of a team that values ownership, technical excellence, and proactive problem-solving -- building solutions that matter at scale.

Why This Role Matters

Our client's business depends on robust, scalable, and future-ready ICT solutions. As a Senior Java Developer, you'll be instrumental in ensuring the stability, performance, and continuous improvement of applications used by thousands. Your work will drive operational excellence, enable innovation, and support the digital backbone of a major enterprise. This is your opportunity to shape outcomes, not just deliver tasks.

Key Responsibilities

Lead the development, maintenance, and enhancement of Java-based applications within the Data Management domain.
Analyze, design, and implement new functionalities in collaboration with designers and analysts.
Take full ownership of incident follow-up, bug fixing, and user support, ensuring high system availability.
Drive technical problem analysis and propose efficient, scalable solutions.
Share knowledge and insights within the team, fostering a culture of continuous learning and improvement.
Produce clear technical documentation and perform software upgrades as required.
Actively participate in Agile/Scrum ceremonies, contributing to project planning and delivery.
Provide feedback on process and system improvements, championing best practices.

Technical Skills & Experience

Minimum 5 years of demonstrable experience developing Java/J2EE applications in enterprise environments.
Proven expertise with Spring MVC, Hibernate, Maven2, and JBOSS middleware (EAP, Fuse).
Strong experience with frontend technologies: HTML, JavaScript, JQuery.
Hands-on knowledge of GIT or similar source control systems.
Solid understanding of JBoss administration on RedHat Linux environments.
Experience with relational databases (Oracle, SQL, etc.).
Demonstrable experience with Unit Testing and Agile development methodologies.
Familiarity with ITIL processes (incident, problem, change, release management).
Experience supporting applications in large-scale business contexts (user base >1500).
Relevant certifications or equivalent experience in Java/J2EE programming environments.

Language Proficiency

Fluency in Dutch at European CEFR level C2 is mandatory (spoken and written).

Other Requirements

Demonstrated ability to work effectively within Agile/Scrum teams.
Strong communication skills and a proactive, ownership-driven mindset.
Commitment to knowledge sharing and collaborative problem-solving.

Project Details

Freelance position
12-month contract
Location: Melle
Start date: 03/11/2025
End date: 03/11/2026

Ready to build the future with RELYzIT Talent? Upload your CV now and join the movement of elite builders shaping tomorrow's technology.

RELYzIT Talent -- Where builders build the future.

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About the Company

At RELYzIT, we are on a mission to revolutionize businesses in the digital age by empowering them with cutting-edge technology solutions. Our extensive range of services, including blockchain-based solutions, Cloud, Security, Infrastructure, Data Science and Engineering, and Web Development, enables us to create a lasting impact. With our innovative blockchain-based solutions, we unlock a world of possibilities for businesses, enhancing efficiency, transparency, and security. Our expert team crafts secure, decentralized sys... Know more