Moodle upgrade from 3.9 to 4.5

I am seeking a skilled professional to facilitate the upgrade of my Moodle site from version 3.9 to 4.5. This process will necessitate an accompanying PHP upgrade and potentially a database upgrade as well. The site is currently hosted on a dedicated server with HostGator. Expertise in Moodle upgrades, PHP compatibility, and database management is essential for this project. If you possess the requisite skills and experience to ensure a seamless transition to the latest version, I invite you to submit your proposal. Thank you for your consideration.