Senior Full-Stack Developer Needed to Build Digital Commerce SaaS Platform (E-junkie-Style)

am looking for an experienced senior full-stack developer or small development team to build a production-ready digital commerce SaaS platform with functionality comparable to platforms such as E-junkie. The platform will allow sellers/creators to upload and sell digital products online, while customers can browse products, make payments, and securely download their purchased products. This is NOT intended to copy E-junkie's source code, branding, logo, copyrighted content, or proprietary design. I want an original implementation, original UI/UX and original branding, while providing similar core digital-commerce functionality. The platform should be scalable and designed so that additional features can be added later.