Backend Developer

# Backend Developer — JavaScript / C# / Python Ecosystem

description: >
  Designing and building high-performance, secure backend systems
  with JavaScript, C#, and Python. I turn complex requirements into
  reliable, maintainable, and scalable solutions.

languages:
  - JavaScript (ES6+)
  - TypeScript
  - Node.js
  - C#
  - Python

frameworks_libraries:
  - Express.js
  - NestJS
  - Koa
  - ASP.NET Core
  - Django
  - Flask
  - FastAPI
  - SignalR

apis_realtime:
  - REST
  - GraphQL
  - WebSocket
  - gRPC

auth_security:
  - JWT
  - OAuth2
  - Session-based Authentication
  - Role-based Access Control

databases_orms:
  - PostgreSQL
  - MySQL
  - MongoDB
  - Redis
  - Sequelize
  - TypeORM
  - Entity Framework
  - SQLAlchemy
  - Django ORM

system_ops:
  - Caching
  - Background Jobs / Queues
  - Logging
  - Monitoring
  - Performance Optimization