REST API Authentication Implementation Expert

I'm looking for a skilled developer with experience in implementing REST APIs. The primary focus of this project is to set up authentication via the API.

Key Requirements:
- Expertise in REST API
- Previous experience with API authentication
- Proficient in handling various data formats: JSON, XML, CSV

The ideal candidate should be capable of ensuring secure and efficient authentication through the API, as well as adept at managing data in the specified formats. Please include examples of similar projects you've completed in your bid.