Wordpress Website Updating and Maintenance

Need someone who can update the WordPress website on regular basis: 1. Updating the website with 20-25 articles with images with SEO keywords 2. Need someone who can make it look clean, professional 3. Optimizing images for faster upload 4. Updating daily 2-3 articles with images supplied 5. Adding and changing the menu as required 6. Adding advertisement blocks on the website 7. Already have the SSL certificate but the website is still showing not secure, need to fix this. [login to view URL] with the slider revolution 9. Updating Plugins regularly 10. Need to add or remove categories 11. Creating and adding content as per menu, as this is a blogging WordPress website, the menu is long with submenus. 12. Daily adds the related events on the website. it will be an ongoing task