Hello
Greetings of the day !!!
As per my understanding you are looking for a Drupal Expert who will assist you on upgrade your an existing site to the latest D8 version.
As a Drupal Expert,I have earlier upgrade,migrate number of drupal sites to the latest version.
I have worked with its various kind of modules,plugins,functionality for customization as well as develop new one as per the requirement,implement it within a site.
I have an experience of using working with features/modules like content types, fields, blocks, views, wysiwyg editors, media (eg. images, documents), users, roles, permissions.
As a Drupal Expert,I can
Drupal Upgrade,Update & Migration
Drupal Set Up,Install & Configure on any kind of server
Custom Module Development
Installing & Updating Modules
Maintenance & Support
Bug Fixing & Troubleshooting
API & Web Services Integration
Enhancement Distribution
I would like to tell you that I am working on Drupal Platform from last 7 years.I have worked on its various versions such as D5,D6,D7 & Now currently working on D8.
It will be fruitful if we can go for a chat to discuss more in detail.
Kind Regards
HS Virasat Solutions