XML API Integration for Web App

I need an experienced developer to integrate an XML API into my web application. The integration will primarily focus on synchronizing user-generated content.

Key Requirements:
- XML API integration expertise
- Experience with web applications
- Familiarity with user-generated content handling
- Strong data synchronization skills

Ideal Skills and Experience:
- Proven track record in API integrations
- Knowledge of XML and web technologies
- Background in managing user-generated content

This is for a custom Yeastar Custom CRM Integration for SyncroMSP.
https://help.yeastar.com/en/p-series-software-edition/integrations/custom-crm-integration/custom-crm-integration-guide-overview.html
https://api-docs.syncromsp.com/

Looking forward to your proposals!