Front-end:
✅ React / Next.js
✅ Vue / Nuxt.js
✅ Angular
✅ Svelte
✅ Tailwind CSS / Bootstrap
✅ Material UI
Back-end:
✅ Node.js / Express.js
✅ Laravel / PHP
✅ Python / Django / Flask / FastAPI
Database:
✅ Relational DB (MySQL, PostgreSQL, MS SQL, Oracle)
✅ NoSQL DB (MongoDB, Firebase, Redis, Neo4j)
API:
✅ REST API / SOAP / gRPC / GraphQL
Design and Development Principles:
✅ GOF Design Patterns
✅ Domain Driven Design
✅ Test Driven Development
✅ CQRS
✅ Event Sourcing
Architectural Patterns:
✅ Monolithic / Microservices / SOA / Serverless / Service Mesh
Others:
✅ WebRTC / WebSocket / Firebase Realtime Database
✅ RabbitMQ / Kafka
✅ WebSockets
✅ Nginx / Apache / Coddy / MS IIS
✅ Kubernetes
✅ CI/CD
✅ DevOps
✅ Unit Test