Want to make one app in shopify

I am looking for a Shopify app developer who can create an app to help me with marketing and promotion. The app should have specific features that I have already listed. I need the app to be completed within one month, so time is of the essence.

Ideal skills and experience:
- Shopify app development experience
- Expertise in marketing and promotion
- Ability to work within tight deadlines
- Strong communication skills to understand my specific requirements and make suggestions for improvement