Mission Overview:
Keystone Solutions is seeking a Senior Java Developer for a consultancy mission at a client site. The ideal candidate will have a minimum of 7 years of experience and possess strong skills in Java, Gradle, SpringBoot, Spring, Hibernate, and GWT. Knowledge of DB2 and PostgreSQL is also required.
Responsibilities:
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Adapt applications running on GlassFish 2/3/4 for migration to Payara5.
Requirements:
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Minimum 7 years of experience in Java development.
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Proficiency in Gradle, SpringBoot, Spring, Hibernate, and GWT.
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Good knowledge of DB2 and PostgreSQL.
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Experience in social security systems, particularly with Fedris, is a plus.
Why Join Keystone Solutions:
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Consultancy Nature: Work on-site and embrace your consultant identity.
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Dynamic Projects: Engage with diverse challenges across various client environments.
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Turbo-Charged Learning: Experience professional development and broad learning opportunities.
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Skyrocketing Ambition: Commit to your career growth within our framework.
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Values: As a
If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today .
Duration: 06/07/2026 - 30/09/2026 3 months • (full time)
Skills required:
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DB2 - Level: Junior - Most recent: Any time
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gradle 5.x - Level: Confirmed - Most recent: Any time
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GWT 2.7 - Level: Confirmed - Most recent: Any time
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Hibernate 5.5.X - Level: Confirmed - Most recent: Any time
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java 8 - Level: Confirmed - Most recent: Any time
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PostgreSQL - Level: Junior - Most recent: Any time
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Spring 5.3.X - Level: Confirmed - Most recent: Any time
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Spring Boot 2.7.X - Level: Confirmed - Most recent: Any time
Language requirements:
Dutch
Level Passive knowledge
English
Level Passive knowledge
French
Level Active knowledge
