Cross-Platform Device Testing

I need someone with a lot of devices. I need comprehensive testing for my software on real devices. The testing should cover:

Devices:
- Smartphones, Tablets, Laptops

Operating Systems:
- iOS, Android, Windows

Test Types:
- Functional Testing: Ensure all features work as intended.
- Usability Testing: Evaluate user experience and interface.
- Performance Testing: Assess speed, responsiveness, and stability.

Ideal Skills and Experience:
- Proven experience in software testing across multiple devices and OS.
- Strong attention to detail.
- Ability to document and report issues clearly.

Please provide your testing strategy and timelines.