Enterprise SaaS Marketplace Development

I’m building a multi-service, on-demand marketplace delivered as a SaaS platform and targeted at large enterprises. The application must be truly multi-tenant so each corporate client can manage its own environment while sharing the same codebase... (Budget: ₹250000 - ₹500000 INR, Jobs: API Development, C# Programming, Cloud Computing, MySQL, Payment Processing, PHP, SaaS, Software Architecture)