Hi there,
I am a Joomla expert and working on it for the last 7 years which includes many complex websites as well as plugins, themes, extensions, and components.
I have checked your job posting over here and I can assist you with the work you need. I have updated lots of websites to Joomla 4 since its release.
You can check my profile over here so you can get an idea of my skills. Please share the site details so I can check and come up with a proper execution plan.
I am available to start the work now.
Looking forward to your positive response and a great working relationship.
Thank You