Build and E-commerce Website and App for "B2B"

It is to develop a GLOBAL e-commerce / Online Shopping Website for "B2B", with a mobile application for both iOS and Android. A project from end to end.

It must have all the latest e-commerce functions: High Speed, Attractive Shop Display, User friendly, Strong Security, Latest Banking applications, Returns tracking.... with "Proven Reduction in operational costs" at all stages is our target. To avoid building a streaming system from scratch, the streaming functions: payment, shipping, Marketing ...etc modules will use external systems (API) - services such as nayax, nuvei, grubbrr, twilio…etc, . (Your proposal should mention in detail what are you offering).
There is a possibility for a Long-Term Security and Maintenance Contract for the successful bid. Please include this in your bid separately.
This is only Freelancers/Companies who have done similar big jobs should apply. It is not for trial-and-error people please. Successful bidder will need to share real references of similar jobs before award.

Our new website and App should have similar functionality to: https://tinwaredirect.eu , https://www.rocabapack.ie , https://www.kitepackaging.co.uk/

Good Luck all.