Java Developer
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About Smile & The Opportunity Passionate about tech, digital, and innovation? Join the 1,800 employees at Smile, the European leader in open-source integration, spread across 20 agencies in 9 countries. Collaborative spirit and knowledge sharing are at the heart of our DNA. Our experts push the boundaries of open source every day to build a smarter, more efficient, and more responsible digital world. Here, we don't just follow trends, we create them ? We are currently looking for an experienced Freelance Java Developer to join us in Brussels and take part in large-scale, impactful digital projects for one of our premium clients. ?
Position Overview
- Status: Freelance (Independent / Prestation de services)
- Location: Brussels, Belgium (Hybrid model: 2-3 days remote per week)
- Seniority Level: Medior (3+ years) to Senior (10+ years)
- Languages: Professional proficiency in either Dutch or French OR English
Your Mission & Responsibilities
As a Freelance Java Developer, you will be integrated into a dynamic environment to design, develop, and maintain robust enterprise applications. Your main responsibilities will include:- Designing and implementing high-quality software solutions using Java / Java EE technologies.
- Implementing and managing API and Web Services standards (OAuth2, OpenAPI, SOAP) and working within SOA / REST models.
- Translating business requirements into technical designs utilizing UML and BPMN.
- Collaborating within an Agile/Scrum methodology, while aligning with corporate governance frameworks (ITIL, PMBOK/PRINCE2).
- Contributing to architectural discussions and evolution using modern architecture frameworks (TOGAF, Archi, Sparx).
- Ensuring code quality, version control, and seamless integration using GIT and client frameworks (Axis 2, CXF, .Net compatibility).
Your Profile
- Experience: You have at least 3 years (Medior) to 10+ years (Senior) of proven experience in backend Java development.
- Core Tech Stack: Deep expertise in Java/Java EE, REST/SOA architectures, API security (OAuth2), and SOAP/OpenAPI standards.
- Methodologies: Strong familiarity with Agile/Scrum environments. Knowledge of ITIL, Prince2, or TOGAF is a major asset.
- Tools: Proficiency with GIT, UML/BPMN modeling tools (Sparx, Archi), and integration frameworks (Axis 2, CXF).
- Soft Skills: Autonomous, proactive, team-oriented, and solution-driven.
Why Smile? ?
- Peer Management: Our proximity management by peers fosters dialogue and the implementation of a tailored career path.
- Continuous Learning: Because the digital sector is in constant motion, Smile is committed to making you an expert in your field, thanks to a comprehensive training offer: access to an e-learning platform, financing of certifications, and advanced knowledge-sharing tools.
- Vibrant Culture: Your year will be animated by group and agency events: annual convention, participation in trade fairs, summer party, and both formal & informal afterworks.
The Next Steps ?
1. First contact: A phone call to discuss your aspirations, availability, and what we can offer you. 2. Meeting: An opportunity to get to know each other and explore your professional background. 3. Business interview: A deep-dive discussion with one of our experts to assess your technical skills and define your goals. > Are you ready to elevate your freelance career with Smile? Apply today