Java developer (Permanent contract and Freelance)

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! 🌟 Join Smile in Brussels and take part in projects that truly matter! 🏆

As a Java Developer...

You are the craftsman behind our most robust backend applications! Within our passionate technical teams, your mission is to design and develop custom, high-performance, and scalable solutions based on the Java ecosystem. On a daily basis, you will:

• Design and develop high-performance web applications and backend microservices using Java and the Spring Boot framework.

• Create and integrate secure RESTful APIs to seamlessly connect our various platforms and services.

• Guarantee code quality by writing unit and integration tests, and actively participating in peer Code Reviews.

• Optimize application performance and handle complex modeling and queries for databases (SQL and/or NoSQL).

• Deploy solutions following DevOps and CI/CD best practices (Docker, GitLab CI).

• Participate actively in Agile ceremonies (Scrum) and collaborate closely with architects, Product Owners, and front-end developers.

Your profile

Holding a degree in IT or computer science, you have at least 3 years of successful experience in Java backend development, ideally within a digital agency or IT services environment.

• You have a perfect mastery of Java (recent versions) and its flagship ecosystem, particularly the Spring framework (Spring Boot, Spring Security, Spring Data).

• You are comfortable with modern software architecture principles (microservices, event-driven architectures) and version control with Git.

• You have a strong Clean Code culture, rigorously apply SOLID principles, and are convinced of the absolute importance of automated testing.

• Endowed with a true team spirit, you enjoy sharing your technical knowledge, mentoring junior developers, and learning from the community.

• Your technological curiosity, autonomy, and desire to push the boundaries of open source make you the ideal candidate. Fluency in English (French or Dutch is a great asset in Brussels) is essential to collaborate effectively.

Ready to take on a new challenge in the heart of Europe? Come and express your talent in a caring environment at Smile Brussels where your ideas will make a real impact!

Why Smile! 😊

Our proximity management by peers fosters dialogue and the implementation of a tailored career path.

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, knowledge-sharing tools...

You can participate in Smile's development via our paid internal referral program, earning up to €3000.💰

Your year will be animated by group and agency events: annual convention, participation in trade fairs, summer party, formal & informal afterworks.

Beyond this context, you will also benefit from:

• Company health insurance & public transport costs covered at 50%

• Minimum of 9 rest days (RTT) per year

• Holiday bonus

• Meal vouchers up to €9.50 covered at 55%

• Dynamic Works Council (CSE)

The next steps 🚀

• First contact: A phone call to discuss your aspirations and what we can offer you.

• Meeting: An opportunity to get to know each other and explore your professional background.

• Business interview: A discussion with one of our experts to assess your skills and define your goals.

Welcome to the team! And if it's a match between us, we will be delighted to welcome you for an exciting adventure. So, ready to join the team? 😉