Senior Java Software Engineer

You will contribute to both the development of new capabilities and the continuous improvement of existing applications.

This role goes beyond pure development - it requires someone who is comfortable working in a build & run environment, with a strong sense of ownership.

You will:

• Contribute to and challenge functional analysis and specifications
• Design, develop, and maintain Java-based applications
• Ensure code quality through reviews and structured delivery practices
• Test and validate developments before user acceptance
• Analyze incidents, identify root causes, and implement sustainable solutions
• Maintain and improve existing systems and documentation
• Support business users and ensure application continuity
• Contribute to support processes, reporting and availability monitoring
• Collaborate closely with both IT and business stakeholders
• Participate in support rotations when required

We are looking for a senior profile who combines technical depth with autonomy and reliability.

• 5+ years of experience in Java backend development
• Strong experience with Java and Spring ecosystem
• Experience with relational databases (e.g. SQL Server)
• Familiar with application servers (WildFly, Glassfish, …)
• Experience with integration patterns and technologies (REST, SOAP, messaging such as ActiveMQ)
• Experience with build & deployment tooling (Maven, Jenkins, Git)
• Comfortable working in Agile environments
• Experience in support-driven contexts (incident handling, bug fixing, improvements)
• Understanding of security best practices (OWASP, OAuth, JWT, …) is a plus
• Exposure to Docker, Kubernetes, or cloud platforms is a plus, * English (mandatory)
• Dutch or French (at least one), * Ownership and accountability
• Pragmatic and solution-oriented thinking
• Ability to operate independently within a team setup
• Clear communication with both technical and non-technical stakeholders
• Structured way of working under pressure

Brainsquare is a solution provider specialized in designing, building and managing enterprise application landscapes. We operate at the intersection of application development, integration and collaboration platforms, combining hands-on engineering with structured delivery.