Senior Java Developer Job ID: JP054657

ITProposal · Brussels, Brussels, Belgium

Location
Brussels
Job Type
full time
Posted
July 04, 2026

Job Description

Senior Java Developer

We are looking for a Senior Java Developer with at least 7 years of experience to support the modernization of existing Java applications. You will play a key role in migrating applications from GlassFish 2/3/4 to Payara 5, while ensuring stability, performance, and compatibility across the application landscape.

Key Responsibilities

  • Migrate and modernize Java applications from GlassFish to Payara 5.
  • Develop, maintain, and enhance enterprise Java applications.
  • Work with Java, Spring Boot, Spring, Hibernate, Gradle, and GWT.
  • Develop and optimize solutions using DB2 and PostgreSQL databases.
  • Perform application testing, troubleshooting, and performance optimization.
  • Collaborate with technical teams to deliver high-quality software solutions.

Requirements

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