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For our partner, a German multinational energy company, we are looking for full remote freelance java developer to upgrade the WallstreetSuite system to version 8. The system is used in trading and treasury environment of our partner and is heavily integrated to various other IT systems


Planned project duration for the entire project (start/end): March 2024 until roughly end of 2025.

Project workload: 24 hours/ week, flexible distribution


Task description:
• Migration of all CSD interfaces from Oracle Java to Amazon Corretto Java with the following detailed requirements due to technical reasons: existing interface needs to continue to work in the new version and its changed interfaces and destinations.
• Own investigation into the functionality of the interfaces based on documentation that the client provides in advance and by reading and discovering existing codes.
• Create developer documentation so that the client is able to maintain the new interfaces after the project has been closed.
• Unit & Integration testing:
o Create adequate test cases based on identified requirements.
o Execute created test cases and documentation results
o Handle defects and fix identified issues
• Weekly presentation of project progress and results
• Presentation of finished developer documentation to the client for a sign off
• Correct identified problems (if found) based on the information coming and after the client runs developer tests
• Appear clearly as an external consultant of the client whenever interacting with external parties.


Required Skills:

• Java Development knowledge with Java v6 and v12 (v11 would be good)

• Relevant experience with Oracle Java and Amazon Java JDK Corretto

• Experience and knowledge around designing and working with interfaces

• Capable of understanding logic of existing Java code

• Testing Experience


Please send us your English CV.

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