Android VPN App Development

I'm seeking a proficient developer to construct a VPN app for Android devices. The app must be optimized for speed, adhere to the latest coding best practices, and incorporate clean, maintainable code.

Key requirements include:
- Utilization of OpenVPN protocol
- Integration of user authentication through third-party platforms like Google or Facebook
- Implementing a monetization strategy through advertising (specific ad types to be determined)

The ideal candidate will have:
- Extensive experience in Android app development, specifically VPNs
- A deep understanding of OpenVPN protocol
- Proven track record of creating high-speed applications
- Skills in clean coding and adhering to the latest best practices
- Experience in integrating third-party authentication services
- Understanding and experience in implementing ads in apps.

Please note, the specific types of ads to be included in the app are yet to be determined. The app must be able to accommodate various ad types, such as Banner ads, Interstitial ads, and Rewarded ads.

I look forward to your bids and am eager to find a skilled developer to bring this project to fruition.