Need a recurring graphic designer to make Banners for my company

I'm seeking a talented graphic designer to create a cohesive set of visuals for my website. The graphics need to align with a modern and minimalistic theme.

Requirements include:
- Header Banners: Eye-catching yet simple to set the tone for each page.
- Product Photos: Clean, high-quality images showcasing our products.
- Promotional Banners: Subtle, modern designs to highlight current promotions or offers.

Ideal skills and experience:
- Proven portfolio in modern and minimalistic designs
- Expertise in creating web-optimized graphics
- Strong attention to detail
- Ability to adhere to a consistent visual theme across different graphic types

Please provide samples of previous work and an estimated timeline for completion.

This will be a recurring project, possibly every week or biweekly for the year. I'm looking for someone I can rely on who can produce high-quality work FAST. Please do not submit a proposal if you plan on doing one job, i'm looking for someone to hire repeatedly