Using post man to test WCF services with various test scenarios and also load testing

This is my first question on Postman community.
Our project exposes WCF services that are consumed by external applications over http.
I would like to perform load testing as if there are 1000+ users hitting various contracts in WCF at same time, which includes GET, INSERT and UPDATE.

I am using WCFTestClient.exe to test, but is really tedious and cumbersome to test various scenarios especially the Insert, Update transactions. Do we have anything in Postman to make things easy and run hundred’s of test cases like say some importing from excel etc. Please suggest. Any help on this will be really appreciated. Thanks in advance.

I don’t think Postman is the right tool for load testing.

Better have a look at Gatling or JMeter.