Nexus upgrade from 3.42 to Higher version

I am looking for a skilled professional to upgrade my Nexus software from version 3.42 to a higher version. I am seeking overall improvements to the software and need someone who is experienced in Nexus upgrades. There may be potential challenges or issues with the upgrade, although I am not certain about them. The ideal candidate will have:

- Experience with Nexus upgrades
- Knowledge of the specific features and improvements in the higher version
- Problem-solving skills to address any potential challenges or issues that may arise during the upgrade process.