Website annual maintenance

Website annual maintenance project requires updates to content on a quarterly basis. The client is not looking for any additional services such as SEO optimization or analytics reports. The ideal freelancer for this project should have experience in website maintenance and content management. Skills in HTML, CSS, and CMS platforms would be beneficial. The freelancer should be able to work independently and meet deadlines. NDA will be signed as part of mandatory condition. The website is based on single page with PDF files after clicking its tabs.