PerfexCRM Custom Modules Development

I'm looking for an expert to develop custom modules for PerfexCRM.

Key Requirements:
- Custom modules development
- Integration with existing PerfexCRM features
- Experience with PHP, MySQL, and PerfexCRM

Ideal Skills:
- Strong backend development skills
- Previous experience with PerfexCRM
- Ability to understand and implement complex requirements

Please provide a portfolio and relevant experience.