Meta Pixel & GTM Integration APK file download

I'm looking for an experienced developer who can correctly integrate Meta Pixel and Google Tag Manager (GTM) on my website.

Project Details:

* My primary goal is to track app downloads from Meta Ads and Google Ads.
* My Android app is not available on the Google Play Store.
* Users download the app directly as an APK file from my website.
* I have multiple landing pages, each promoting different versions of the app.
* I need proper event tracking so I can optimize my ad campaigns based on downloads.

What I Need:

* Install and configure Meta Pixel across my website.
* Set up Google Tag Manager correctly.
* Track APK download button clicks/downloads as conversion events.
* Configure custom events for Meta Ads if needed.
* Ensure Google Ads conversion tracking works through GTM.
* Verify that all events are firing correctly using Meta Pixel Helper, GTM Preview, and Google Tag Assistant.

Requirements:

* Proven experience with Meta Pixel and Google Tag Manager.
* Experience tracking conversions for direct APK downloads (not Play Store installs) is a big plus.
* Please explain how you would implement the tracking and share any similar projects you've completed.

If you're confident you can set this up correctly and help improve my ad optimization, please send your proposal.