Joomla updating problem since migration

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I am working on software development since 1992. I am expert on migration of databases, custom or general purpose. I can migrate any kind of relational databases with just few SQL sentences. I can solve problems about replacing or combining data related with plugins, modules, themes or components. I have a lot of linux server administrator skills. I have an strong knowledge of server side scripting, and client side. I can data scrape of webpages, normalize and populate into a system. The products are well documented. I deliver tested final products on my own server.

Highly experienced and ready to start. Have worked privately for the last 6 years for phpLD, hence my low work showing with freelancer.

Hello, Joomla expert ready to solve this problem as soon as you need. I am familar with updating issues. Thank you