Full-Stack Developer Needed to Complete Custom E-Commerce Website

Full-Stack Developer Needed to Complete Existing Custom E-Commerce Website I have an existing custom e-commerce website that is mostly complete. The front end is built with custom HTML, CSS, and JavaScript and is hosted on my own Linux VPS (Nginx). I am not looking to rebuild the site or migrate it to WordPress, Shopify, Squarespace, or another platform. I need an experienced full-stack developer to complete the remaining functionality and prepare the site for launch. Scope of Work: -Review the existing codebase. -Build a secure backend and customer database. -Implement customer registration, login, password reset, and account management. -Connect the shopping cart to customer accounts. -Integrate a payment processor and complete the checkout process. -Build customer and admin order management. -Improve security, performance, and mobile responsiveness. -Test the complete purchasing workflow and resolve any remaining issues. Required Skills: -Full-stack web development -JavaScript (Node.js/Express preferred) -MySQL or PostgreSQL -REST APIs -Payment gateway integration -Linux/Nginx -Git Please Include: -Examples of similar custom e-commerce projects. -Your recommended backend stack and why. -Your estimated timeline. -Confirmation that you're comfortable working with an existing custom codebase rather than rebuilding the website. To confirm you've read this post, please start your proposal with the word "TRISTATE". I'm looking for clean, secure, production-ready code and someone who communicates well throughout the project. Please do not apply if your primary recommendation is to rebuild the website on another platform. My goal is to complete and improve the existing custom application.