Oracle Java Specialist (Freelance, start asap)

This is a short-term assignment until March 2026.

NN is transitioning from Oracle Java to open-source Java to mitigate licensing liabilities starting in 2026. We are looking for a highly skilled and proactive Java specialist to assist in migrating our Oracle Java-dependent applications. This role involves contributing to the transition for both server and client endpoints (Windows 11). The ideal candidate should have a deep understanding of Java SE specifications, Java libraries, runtime behavior, and JDK distributions, along with a strong technical background in Windows 11 and Windows Server operating systems. Experience with application vendor management is essential.

What you are going to do

• Assist with all technical aspects of replacing Oracle Java with OpenJDK on both Windows 11 and Windows Server platforms
• Liaise with application vendors on technical aspects of the Oracle Java to OpenJDK migration as needed
• Support the business by facilitating testing and deployment processes for their Oracle Java-dependent applications on Windows clients and servers
• Assist the business with testing, troubleshooting, and migrating their Oracle Java-dependent applications to open-source Java

What we offer you

• Competitive hourly rate depending on your knowledge and experience
• An assignment until March 2026
• Hybrid way of working, partly from home and partly from the office in The Hague
• International working environment with loads of knowledge sharing

Who you are

You are passionate about Java technologies and Windows Server and Client endpoints. You have excellent collaboration skills, are a strong communicator with a proactive mindset, and can work under pressure.

Who you will work with

You will work closely with various teams in Digital WorkPlace, including the Endpoint and Application Management team and the Packaging teams. You will also collaborate with many application owners across NN, supporting them throughout the migration process.

All our engineers are encouraged to improve their technical skills and further develop their craftsmanship while refining soft skills such as consulting, problem-solving, and decision-making. All NN colleagues deeply respect our values of Care, Clear, and Commit, which helps create an enjoyable and productive workplace.