Flashing Software Development

I'm in need of a seasoned software developer capable of creating flashing software. The specifics of the device and the software's exact purpose are yet to be defined, but it is crucial the software supports all major operating systems - Windows, MacOS, and Linux.

Ideal Skills:
- Proficient in cross-platform software development
- Experience with flashing software
- Knowledge in device firmware and ROMs

Please be prepared to provide examples of similar projects you've completed.