At PT Shifor Teknoglobal Perkasa, I develop backend services for Device Intelligence and Parking System platforms using Java Spring Boot. I build and maintain APIs for device fingerprinting, risk scoring, API key validation, and callback integration.
I also work on parking transactions and user management, and create technical documentation including system architecture, ERDs, API specifications, and security requirements.
At PT Hexaon Business Mitrasindo, I developed and maintained NDC-based ATM protocol services using Java Socket (TCP/IP) for real-time transaction communication. I built a parser that converted raw NDC messages into structured JSON and ISO8583 formats.
I also implemented dynamic ESB routing based on BIN and Terminal ID. My work spans backend services, system integration, and transaction-based systems.
