Build SaaS Platform from Scratch

We want to develop full fledged SaaS platform. Which will have 1. Website front end: here prospective customers will be seeing features of SaaS, pricing, registrations option, etc.), 2. Cloud software: this is the product we are offering. The details of cloud software will be shared separately. 3. SaaS Management: This is our backend from where we can manage all our customers i.e. cloud software users, website front end. Technology: Python, mongodb, and React or any better technology Design UI UX has to be taken care of by you. Mention 'NDA' in top of your proposal, to know us you have read the requirements. Do not waste your time if you have poor communication skills.