YouTube Subscriber Counter Integration

I'm looking for a skilled PHP developer who can help me with a Smiirl Counter project. I want to connect a Custom Smiirl Counter to my Google Analytics to show my live YouTube subscriber count.

The ideal candidate must have:
- Proficiency in PHP
- Experience with YouTube API
- Knowledge of JSON formatting
- Familiarity with Smiirl's backend
- Ability to develop a script that checks for new subscriber count updates every minute

The scope of work involves:
- Developing a PHP script to fetch the YouTube subscriber count from my API-enabled account
- Ensuring the output is in JSON format, specifically {'number': subscriber_count}
- Connecting the script to Smiirl's backend for real-time updates

Please refer to the following links for more context:
- https://help.smiirl.com/article/110-can-i-make-a-youtube-or-linkedin-custom-counter
- https://help.smiirl.com/article/269-i-need-a-json-url-for-my-custom-counter-what-information-should-i-provide-my-developer-with
- https://github.com/smiirl/smiirl-custom-samples#smiirl-custom-counter-documentation--samples