Twilio WhatsApp Integration Specialist

I need a Twilio expert to integrate WhatsApp for broadcast messaging. I want to upload contacts via CSV/Excel file.

Key Requirements:
- Set up WhatsApp on Twilio
- Enable broadcast messaging functionality
- Facilitate contact upload via CSV/Excel

Ideal Skills:
- Twilio expertise
- Experience with WhatsApp Business API
- Proficient in handling CSV/Excel integrations

Please provide relevant experience and estimated timelines.