poster designer and graphic designer

I am looking for a skilled poster and graphic designer to create an eye-catching advertisement. The design should be bold and colorful, and will be in a small size, either A4 or letter size. The purpose of the design is to promote a product or service.

Ideal Skills and Experience:
- Graphic design experience
- Understanding of color theory and composition
- Ability to create visually appealing designs
- Expertise in Adobe Creative Suite or similar software
- Understanding of marketing and advertising principles