To ensure success as a Node. js developer, you should possess extensive knowledgeof Node.Js based services like Express js, and Multer. Candidate must be well aware of the JS concepts like promises, async-await, callback,fetch, and array methods like map, filter, reduce. Knowledge of GIT is a must. Must have sound knowledge of creating API through postman or similar tools,developing and maintaining all server-side network requests, ensuring optimalperformance of the central database, collaborating with front-end developers onthe integration of elements. Deep Understanding of mongo and MySQL. Working knowledge of Microservices. Good understanding of AWS services, Like Instance,S3, Route53, Elastic Bean Etc. Best writing code understanding.