E-Book Editor for Sci-Fi Fantasy

I'm in need of an experienced editor for a science fiction/fantasy e-book targeted at young adults. The e-book roughly contains 10,000 - 50,000 words. The project involves extensive editing tasks including reformation of sentence structure and punctuation corrections.

Key responsibilities:
- Thoroughly review and make necessary changes to sentence formations
- Correct all grammatical errors
- Preserve the tone and style appropriate for a young adult audience

Ideal editor should:
- Have previous experience in editing young adult, sci-fi/fantasy genre
- Possess excellent English grammar and punctuation skills
- Have a keen eye for details.