Setup Google Tag for Conversion Tracking

I need a Google Tag installed on my website to track form submissions, specifically for the Contact Us form. Google Tag Manager is already set up on my site.

Requirements:
- Install Google Tag to track Contact Us form submissions
- Ensure proper integration with existing Google Tag Manager

Ideal Skills & Experience:
- Proficiency in Google Tag Manager
- Experience in setting up Google Tags for conversion tracking
- Attention to detail to ensure accurate tracking