Experienced Wordpress Full Stack developer required[long-term relationship]

Hi, Please read carefully ALL the requirements before answering. We are a web agency in Europe searching for a VERY EXPERIENCED WordPress developer to add some custom functionalities to the plugin WPdatatables. Most of the customizations we want are related to the plugin. This is a big project, for an important company in Europe. We are currently finalizing the V1. The project requires a V2 and V3. CURRENT STRUCTURE OF THE WEBSITE : We are using custom fields attached to a CPT. Each CPT is a project. The CPT is made using the Pods framework. We are currently using the plugin wpDataTables ([login to view URL]) for showing a list of all projects. (We will provide more details when needed) There are certains bugs & customizations needed to the existing site. We have created some custom exports (SQL View to Excel) to the website. One of which is not currently functioning as it should be. We have added a custom functionality to the filters of the wpdatatables plugin where if one filter is applied, another one automatically applied. It is functional but due to some bug, it is not working once you log. Once you change the site language, it works fine). The same thing happens with the search form in the header. It should redirect the user based on his current language. This does not work fine (redirects to the wrong language) for the first time (unless you switch the language).. We have created a sync functionality (which works on PHP CLI), which imports the data into the database. We have do some tweaks to the logic of the import. REQUIREMENTS Available ASAP Full time or at least 4h a day Having worked on wpdatatables plugin. At least 7 years of experience in Wordpress custom development Communicate in English well (speaking and writing). We are NOT looking for an agency. You have to be an individual freelancer. You are confident that your work is outstanding. PARTNERSHIP We are searching for a LONG TERM RELATIONSHIP. The developer selected that proved his/her reliability and skills will be hired for the V2 and V3 of this project as well as for other projects. To avoid automatic responses, please write in the title : Answer this question : Which language is WordPress built upon? Link to your website or Linkedin profile Questions Are you a WordPress developer? Did you do custom works with WPdatatable ? How many years of experience do you have in WordPress custom development? Which programming language are you excellent at? How many hours a day are you available? Are you available to work today?