Java Backend Developer with 4+ years of experience building scalable, high-performance backend systems using Core Java and Spring Boot with Microservices architecture. Proven expertise in REST API design, SQL query optimisation (40% reduction in execution time), and cross-functional Agile delivery. Hands-on with AWS (EC2, S3, Lambda, CloudWatch) and a strong foundation in Data Structures & Algorithms, system design, and clean, maintainable code.