Very experienced in React (at least 3-4 years, but more importantly, following the new developments in React ecosystem)
Very experienced in Node.js, express.js, TypeORM (at least 3-4 years, who can easily write a restful API using Node.js/Express which can communicate with database through TypeORM)
Experienced in AWS services like S3, SQS.
Good experience in Devops, javascript programming, redis, AWS, microservices, messaging queue and database queries.