We need to develop a custom FHIR server using c# .net.
There are many FHIR server implementations but what we need is a custom system satisfying the following points:
Custom authentication using access tokens for API access
Agile schema and extensions without requiring any change in code
Custom validation and (rather complex) business rule engine
Saving to NoSQL database as a JSON document
Adding a custom summary object in addition to the original resources etc.
We don't want any complexity in the code. It should be as straightforward as possible for easy maintainability.
Only candidates with prior experience in the development of FHIR server with .net, please.