PoC for Browser Automation Booking Sync Tool

I am looking for an experienced browser automation developer for a proof-of-concept project.

The goal is to create a lightweight automation tool that synchronizes availability between two browser-based booking/calendar platforms used by appointment-based businesses.

This is NOT a full SaaS platform or CRM project.
We only want a focused and reliable proof of concept.

Main functionality:

Detect when a new booking appears in Platform A
Read:
start time
end time / duration
assigned staff member
Automatically create a busy/unavailable block in Platform B for the same time slot

Important:

No customer data sync required
No payment integration
No advanced frontend/UI needed
Reliability and clean automation logic are the priority

Preferred technologies:

Playwright
Puppeteer
Node.js or Python

Required experience:

Browser automation
DOM parsing
Session handling
Automation workflows
Error handling / retries

Nice to have:

Experience building Chrome extensions
Experience with scheduling/calendar systems

This project is only a proof of concept initially, but may evolve into a larger long-term project if successful.

Please include:

Relevant automation/browser projects
Preferred stack
Estimated timeline
Your technical approach for building this PoC