Hi Sarat,
It sounds like an interesting challenge and very good fit.
I have great experience with Microsoft Azure and keyvault API, so it will be done in a very professional way.
Relevant Skills and Experience
Azure, Key Vault SDK, REST API
Proposed Milestones
₹1500 INR - Development / Testing / Configuration
Let me know more about your project (do you use Maven?) and when you are OK to discuss.
Best,
-Mike