Designer for Website content (banner, Social media creatives etc.) & Videos

We are an e-commerce healthcare organisation based out of Delhi (Green Park) and also have an enterprise model of selling product solutions to Hospitals, clinics and individual health care professionals. We have in-house Web developer and an SEO expert and are looking for a professional designer who can design and update our blog pages, website pages, social media creatives (like Offers, Product launches etc.), Product image optimisation, videos (product, company etc.). The person has to be proficient in latest image & Video editing tools and be available preferably for weekend working at our Green Park Office and on a case-to-case basis.