Remodel the APIs into Micro services-based architecture.
Implement a caching layer wherever possible.
Optimize the API for high performance and scalability
Write unit tests for API Testing.
Automate the code testing and deployment process.
Qualifications
At least 2 years of experience developing Backends using NodeJS - should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
Excellent hands-on experience using MySQL or any other SQL Database.
Good knowledge of MongoDB or any other
Experience with graph-based databases like GraphQL.