Gmail Email Tracking Chrome Extension

I'm seeking a skilled developer to update a Chrome extension for Gmail with a primary focus on email tracking.

Key Features:
- Email Tracking: Implement open tracking functionality.
- Integration: The extension should seamlessly integrate with React.js, an existing Chrome extension, and relevant APIs.

Ideal Skills and Experience:
- Proficiency in Chrome extension development
- Experience with Gmail API and email tracking technologies
- Strong React.js knowledge
- Solid background in API integration

Please provide examples of similar work done.