Hello,
I have recently completed 2 projects with DocuSign integration. Please reach out to discuss further. I can certainly help you with this project.
Moreover, I’ve integrated Zapier multiple times in past with different 3rd party APIs. We're top expert for SaaS app development and mostly SaaS requires a lot of automation. Automation APIs like Zapier, Convertkit and Click funnel are useful at times. We have integrated Zapier using CLI as well as Builder. Have built custom JavaScript code steps, webhooks, Zaps for many 3rd parties namely, Google Drive, HubSpot, Active Campaign, Twilio, QuickBooks, Mail Chimp, Xero, Click funnels.
Sincerely,
Ashish