Update website to latest Joomla and PHP versions, including extensions and scripts

I am looking for a Joomla and PHP expert to update my website to the latest 4.x Joomla and 8.x PHP versions, including extensions and scripts.

Current Joomla and PHP versions: Joomla 3.10.6 and PHP 7.0.33.

Backup: Yes, I have a backup of my website files and database.

Assistance with updating extensions and scripts: Yes, I need assistance with updating the extensions and scripts.

Extensions include (but not limited to):
Akeeba Backup
Coala Social Web
RocketTheme

Skills and experience required:
- Strong knowledge of Joomla and PHP
- Experience in updating websites to the latest Joomla and PHP versions
- Familiarity with backing up website files and databases
- Proficiency in updating extensions and scripts
- Attention to detail and ability to ensure smooth functionality of the website after the updates.