LAN Server File Retrieval

I need a professional with considerable experience in Windows server file recovery tasks. The issue at hand involves deleted files from a Local Area Network. Regrettably, there was no backup system in place at the time the files were erased. Skills and knowledge needed for this task include:

- Proficiency in file recovery on Windows servers
- Expertise in working with Local Area Networks
- Ability to work quickly and efficiently due to the sensitive nature of the lost files.

Please note, only bid if you're confident about file recovery without backup support.