Poster Designed for Computer & Mobile phone repairs

I am in need of a poster design for my computer and mobile phone repair business. I am looking for a modern and minimalistic style that will catch people's attention. I am open to suggestions when it comes to colors and themes but should match our logos, I trust the designer's expertise in this area. As for the information and text to include on the poster, I am leaving that up to the designer to decide. The main focus should be on the business name and contact details.

Skills/Experience Needed:
- Graphic design experience
- Knowledge of modern and minimalistic design principles
- Ability to create eye-catching designs
- Strong communication and collaboration skills