Sci-Fi Story for Young Adults

I'm looking for a creative and skilled storyteller to write a captivating science fiction story aimed at young adults.

Requirements:
- Original and engaging sci-fi plot
- Well-developed characters
- Suitable for a young adult audience
- Minimum of 5000 words

Ideal Skills and Experience:
- Proven experience in story writing, especially in the sci-fi genre
- Strong understanding of young adult themes and interests
- Excellent writing and storytelling abilities
- Ability to meet deadlines and take constructive feedback

Please provide samples of previous work.