Posters design on social media

I am looking for a talented graphic designer to create eye-catching posters for social media. The main message of the posters will be promoting a service. The preferred dimensions for the posters are portrait, specifically for Facebook and Instagram (reels, stories, and posts ) features. As for the style, I would like the posters to be bold and colorful. The ideal candidate should have experience in creating social media graphics and be able to work efficiently to meet deadlines.