I am looking for a very experienced developer who can help us in integrating WHATSAPP notifications support on our Laravel based website Propblitz.com. The developer should be fully conversant with the whole procedure of integration.He will be required to handle every stage on his own. I need a smooth, direct WhatsApp chat experience added to my site so visitors can reach us for customer support without filling any forms first. The chat should live on a dedicated Contact Us page—when someone clicks our “Chat on WhatsApp” button there, it must open the standard WhatsApp conversation window (web or mobile) with our business number already populated. Key expectations • Clean, lightweight code that I can drop into an existing page built on standard HTML/CSS/JavaScript (no heavy frameworks). • Automatic device detection so desktop users open web.whatsapp.com and mobile users jump to the WhatsApp app. • Simple styling that matches our current brand colours; I will provide the palette. • Clear instructions on how to swap out the phone number and reuse the snippet on other pages if needed. Acceptance test: opening the Contact Us page from any modern browser or phone should launch a ready-to-type WhatsApp thread to our number in one click, with no user data prompt beforehand. No agency or coordinators please ( NO teams ).