Java Software Engineer

JAVA DEVELOPER – BRUSSELS – 12 MONTHS+

My client is seeking a highly skilled Freelance Java Developer to join a fast-paced financial services environment, delivering secure, scalable microservices.

Responsibilities:

• Design, develop, and maintain secure, high-performance microservices using Java (Spring Boot preferred)
• Implement RESTful APIs with a strong focus on reliability, scalability, and low latency
• Apply secure coding practices
• Integrate with internal and external systems, including payment gateways and third-party APIs
• Contribute to architecture decisions, promoting microservices best practices
• Work closely with DevOps to support CI/CD pipelines and cloud deployments
• Ensure compliance with data protection and regulatory requirements (e.g., GDPR, PSD2 where applicable)

Experience:

• Strong commercial experience with Java (8+) and frameworks such as Spring Boot / Spring Cloud
• Proven experience building and deploying microservices architectures
• Solid understanding of security principles, including authentication (OAuth, JWT), encryption, and secure API design
• Familiarity with containerisation (Docker) and orchestration tools (Kubernetes preferred)
• Experience with cloud platforms (AWS, Azure, or GCP)
• Strong knowledge of relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB)
• Fluent English speaking

Start date: ASAP

Duration: 12 months+

Location: BRUSSELS (2 days per week expected in office)

If you’d like to be considered for this role please send your CV to [email protected] or call +3228083006. Please pass this advert along to anyone else who might be interested.