Looking for a Collaborative Backend Dev to help me connect some API's

Working on a react native app with streaming & digital version of magazine subscriptions. E-commerce store. Event Listings & Galleries. Blog. Will need a knowledgeable guy to interface with me (front end) and other front end devs and helping us connect these apis. I have some explanation below let me know if you have any questions. Looking to get this done within next few weeks. Front end is already done. Need someone who is really collaborative & can explain things very well and support our front end team.

Issuu API
-Show Mobile version of the digital magazine like we have in the figma file (See attached)

Shopify API
-Subscriptions (will need to check for clients subscription status) (also check for Streaming Subscription $10/month)
-Payment Gateway for Subscriptions & Store
-Storing Customers
-User Management/Authorization

Strapi CMS
-Will need to tie to Mongo DB to store meta data for video
-Admin can edit/maintan
-Admin can Add/Edit/Manage Event Listings
-Admin can Add/Edit/Manage Event Galleries
-Admin will have ability to update/manage livestream & precorded videos

Vonage API
-Feed app with livestream api hook
-User will be able to initiate live stream from ad
-After 3 days live stream should be sent to Aws S3 bucket to be store & meta data saved in mongo db. (Video Title, Description, Views, Video Category, Paid/Free)

Admin Mobile User

Initiate Live Stream from the app & add video meta data (Video Title, Description, Views, Video Category, Paid/Free)