PHP programmer to refine the site on the legacy framework symfony1

It is interesting long-term cooperation for the support and refinement of projects on the old symphony framework. With the prospect of switching to Symfony5.
A large number of tasks and a stable flow of them.

Responsibilities:
Support for current systems
- Designing and developing the Companys new services (online store, CRM, billing, personal office)
Optimizing existing projects (demand optimization, architectural solutions)
Designing and developing the REST API

Requirements:
- junior-middle-senior in PHP 5.6-7.4
- PHP/SL work experience from 2 years (please specify with which CMS/CMF/ORM worked, we use Symfony)
– MySQL, PostgreSQL
– html, css, jquery, bootstrap

The desire and ability to write pure well-documented code

!!! Owning a version control system (in our case, git)