Omni-Channel Call Center Dialer Development

I'm seeking a skilled developer to create an omni-channel dialer solution for our call center. The dialer should support the following communication channels:

Voice
SMS
Email
WhatsApp

Key Features:
- Seamless integration of all channels
- User-friendly interface
- Robust backend to handle high call volumes
- Comprehensive analytics and reporting tools

Ideal Skills and Experience:
- Experience in developing dialer systems
- Strong background in telecommunications
- Proficiency in software development and UX/UI design
- Familiarity with integration of multiple communication platforms

Please provide examples of similar work done. Looking forward to your proposals!