Full Website Migration by Expert Developer

I am looking for an experienced and reliable web developer to handle the complete migration of my website from its current platform to a new hosting environment or CMS (Content Management System). The migration must be smooth, secure, and without any data loss or downtime.
Scope of Work:
Backup the current website (files, database, email settings if applicable)
Migrate website to the new hosting provider / platform
Ensure all internal links, media, and functionality work properly post-migration
Test for broken links, speed performance, and mobile responsiveness
Repoint domain DNS settings if required
Setup 301 redirects (if URLs change)
Verify SSL certificate installation (HTTPS)
Ensure SEO settings (meta titles, descriptions, sitemap, robots.txt) are preserved
Provide post-migration support for minor fixes (if needed)
Current Setup:
Current Platform/CMS: [e.g., WordPress / Wix / Joomla / HTML]
New Platform/Hosting: [e.g., SiteGround / Webflow / Shopify / cPanel-based hosting]
Website Size: [e.g., ~10 pages, includes blog, e-commerce functionality, etc.]
Requirements:
Proven experience with website migration (please share relevant past projects)
Strong understanding of DNS, hosting, SSL, and CMS platforms
Ability to work with minimal downtime and risk
Attention to detail and ability to troubleshoot issues quickly