Need Expert to Trace Gmail IP Address

I'm looking for a professional who can help me track the IP address of a sender from Gmail. The main goal is to pinpoint the sender's location.

Ideal Skills:
- Expertise in email header analysis
- Proficient in using tracking tools
- Strong understanding of IP location services
- Prior experience in similar projects

I am not concerned about the legal or privacy implications of this task. I just need to get the IP address.