socket.io , Nestjs, Jwt, CloudFront, Typescript, MySQL, Node.js, Apns, ECS, Sqs, Git, PostgreSQL, Fcm, S3, Express.Js, AWS, Redis, Sns, Ec2, Docker, Elasticsearch, Websocket, OpenAPI, MediaLive, Fastify, CI CD, DASH, Server-Sent Events, OAuth 2.0, Firebase Cloud Messaging, HLS

Elk Stack, Node.js, Kafka, Datadog, Redis, Jenkins, Typescript, Gcp, Javascript, Docker, MongoDB, Azure, Nestjs, Kubernetes, AWS, system design principles, microservices architecture

Express.Js, Gcp, Javascript, Node.js, AWS, Restify

Nosql, Javascript, Restful Services, Node.js, API design, Microservices, Sql, Front-End Development, Redux.js, performance optimization, security best practices

Java, Node Js, Api, Javascript, Clustering

Node.js | JavaScript/ES6+ | MySQL | MongoDB | Oracle | RESTful APIs | Event-Driven Architecture | Asynchronous Programming | Performance Tuning | API Security (JWT, OAuth2) | Kafka | RabbitMQ | LLD/HLD | Microservices | Distributed Systems | Git | Debugging | Scalability

Git, Node.js, Restful Apis, Python, Sql, AWS

Rest Apis, Json, Html5, Css3, Node.js, Python, Bash, Npm, Git, Yarn, Javascript, VS Code, command-line tools

React, CSS, Node.js, HTML

Aws Lambda, Node.js, Sql