WordPress Backend Developer Needed to Fix PHP, Database, and Product Upload Issues

I am looking for an experienced WordPress developer to review and fix issues in the backend of my website. At the moment, there appear to be some PHP-related problems that may be affecting the database structure, schema, or general backend stability. Before uploading a large product catalogue, I want to make sure the website is properly configured, stable, and able to handle the data without errors. The website will have more than 700 products, so the backend needs to be optimized for smooth product management and bulk uploads. Main responsibilities: -Review the WordPress backend and identify any PHP errors or conflicts -Check the database for broken tables, schema issues, or corrupted data -Fix plugin, theme, or custom code conflicts -Make sure WooCommerce is properly configured -Review the product database structure and product attributes -Ensure the website can handle bulk product imports -Improve backend speed and stability -Check PHP version, memory limits, execution time, and server settings -Set up proper backups before making any changes -Test the website after the fixes -Make sure the admin dashboard works smoothly without errors -The developer should also review the current hosting environment and advise if any server-level changes are required. Requirements: -Strong experience with WordPress and WooCommerce -Advanced PHP and MySQL knowledge -Experience fixing WordPress database and schema issues -Experience handling large WooCommerce product catalogues -Familiarity with CSV/XML product imports -Ability to troubleshoot plugin and theme conflicts -Good communication and clear reporting Please explain how you would diagnose the issue before making changes. Also share examples of similar WordPress or WooCommerce backend work you have completed. The final goal is to have a stable, secure, and smooth WordPress backend that can reliably manage more than 700 products.