I will design and build a secure, scalable backend using Python with FastAPI or Node.js with Express/NestJS. The service includes database modeling, API development, authentication, and deployment.
Tech Stack:
• Languages: Python, JavaScript, TypeScript
• Frameworks: FastAPI, Express.js, NestJS
• Databases: PostgreSQL, MongoDB, MySQL
• Authentication: JWT, OAuth2, Role-based access control
• DevOps: Docker, GitHub Actions, NGINX, Uvicorn/Gunicorn
• Hosting: AWS EC2, Heroku, Vercel, DigitalOcean
Deliverables:
• Clean RESTful APIs with Swagger/OpenAPI docs
• Secure user auth & session/token management
• Database schema & migrations (Alembic, Prisma, Sequelize)
• Input validation (Pydantic or Joi)
• Optional: Dockerfile & CI/CD pipeline setup
• Deployment to staging or production server