Module development on Silex (Symfony)

Silex is a miniframework from the creators of Symfony, it is on it that we develop classes for the new release of a CRM-system for real estate. We need to refactor some of the modules of the old version and develop new ones.
A detailed technical task is provided after passing a short interview by chat in order to clarify your skills in php, mysql, OOP.
If you have experience in these technologies at the level of a signor or at least a good middle, I will be happy to discuss with you the tasks.