I design and build secure backend systems and APIs for web and mobile products.
This includes API architecture, database design, authentication, business logic, third-party integrations, real-time functionality, and performance optimization.
I also work with existing backend systems that need restructuring, stabilization, new integrations, or better scalability.
What I can do:
- REST API development
- Node.js and Django services
- PostgreSQL and MongoDB design
- Authentication and authorization
- Payment and third-party APIs
- Real-time functionality
- Backend performance optimization
- Database improvements
- API security
- Existing backend modernization