I am a Backend Java Developer with 3+ years of professional experience, including 18 months at PT Bank Mega Tbk building enterprise-grade internet banking systems. My core expertise spans Java, Spring Boot, SQL, PostgreSQL, Kafka, Redis, and GraphQL microservices architecture. I also have strong full-stack capabilities with React, Next.js, and Python, plus mobile development experience in Android (Java/Kotlin). I build scalable APIs, design efficient databases, implement real-time messaging systems, and deploy cloud-native applications. Additional skills include Docker, CI/CD pipelines, REST API design, and agile methodologies. I deliver clean, well-tested, production-ready code for startups and enterprises alike.