Improve Meta Pixel/Google Tag Manager/Google Analytics 4 installation for 3 websites

I am looking for an experienced freelancer to improve 3 installations of Meta Pixel, Google Tag Manager and Google Analytics 4 on our website. Our goal is to accurately track user behavior, optimize marketing efforts and increase the effectiveness of advertising campaigns.

Task scope:

Verification and improvement of Meta Pixel installation:

- Verification of correct implementation.

- Configuration of custom events.

- Integration with Facebook ads.

Google Tag Manager optimization:

- Reviewing existing tags, rules and variables.

- Configuration of new tags and rules according to business requirements.

- Validation testing of all tags.

Improving Google Analytics 4:

- Configuration validation.

- Configuration of custom events and conversions.

- Integration with Google Ads and other marketing tools.

Requirements:

- Experience working with Meta Pixel, Google Tag Manager and Google Analytics 4.

- Knowledge of HTML, JavaScript and SEO basics.

- Ability to analyze data and draw conclusions.

- Ability to work remotely and communication skills.