Hello Employer,
I have similar experience working with PEREFX CRM for Modules development, Customization, Invoicing sections & many other. I'm an expert having 10+ years of experience with PHP, CODEIGNITER, PERFEX CRM, HTML5, CSS, SUITE CRM & many other.
Hope to have close discussion with you over chat so we can collaborate for a long term & start work.
Thanks & Regards,
Harpreet Singh