### **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!**