I'm seeking an experienced web developer to upgrade and fix issues on my website's backend. Key Requirements: - Implement performance improvements for faster load times and better responsiveness. - Fix existing bugs and optimize the backend for enhanced security. - Ensure all upgrades are seamlessly integrated without disrupting current site functionality. Ideal Skills & Experience: - Strong background in CS Cart backend development. - Proven track record in performance optimization. - Expertise in website security and bug fixing. - Familiarity with CS Cart essential. Please include examples of past work and relevant experience in your bids.