Snapchat Geo-filter Implementation

I'm in need of a skilled individual to add a geo-filter on Snapchat for me. I already have a completely designed filter, so no design work is needed.

Key requirements include:

- Ability to work with geo-filters in Snapchat
- Experience in adding custom text and image overlay functions
- Expertise in working with location-based features, specifically landmarks

I am looking for someone with a vast experience in the Snapchat platform who can confidently get this project done to specifications.