PHP Developer with good knowledge of ZF2

I'm looking to work with a PHP Developer for a period of 3-5 months who is very familiar with ZendFramework 2 and good with existing projects.

To implement a number of modules for a proprietary system (business logic + REST API for FE):

- API for payment systems

- API for Reports

- Integrations with external APIs

Authors of the system also participate in the project (so provide ongoing support)

Requirements:

- Very good knowledge of PHP and ZF2. Minimum 5 years of experience.

- Please contact me only if you have time of at least 20h per week.

Please specify hourly rate, experience (preferably portfolio of completed projects) and availability (dates of availability and time you can devote weekly to the project).

I am interested in offers only directly from freelancers (I am not looking for cooperation with Software Houses or Agencies).