Implement GTM & Event Tracking and work with Our Developer to completely implement it

I need Google Tag Manager installed from scratch on a custom-built HTML/CSS/JS site and configured so that I can finally see the actions that matter inside Google Analytics 4. The two events I must capture... (Budget: ₹1500 - ₹12500 INR, Jobs: Conversion Rate Optimization, CSS, Debugging, Google Analytics, HTML, JavaScript, PHP, Technical Documentation, Web Development, Website Optimization)