Full Stack & Systems Developer
Freelance / Independent Contractor
2024 – Present
Remote (International Clients)
- Architected and deployed 5+ full-scale systems including mobile clients, backend APIs, and centralized databases.
- Specialized in PostgreSQL and MongoDB integration for high-concurrency applications, ensuring data integrity and fast query performance.
- Developed Ktor-based backends with complex business logic, third-party API integrations, and secure authentication layers.
- Built custom management dashboards to provide clients with real-time analytics and system control capabilities.
- Published RingtoneSmartKit on Maven Central, demonstrating expertise in API design and developer-centric tooling.
- Streamlined deployment processes using Docker containerization and automated GitHub Actions workflows.
PostgreSQL
MongoDB
Ktor
Docker
System Architecture
API Integration