Data Storage Technologies: Strong experience with modern data storage solutions including relational databases (Example: PostgreSQL, MySQL), NoSQL systems (Example: MongoDB, Cassandra), and graph databases (Example: Neo4j, Amazon Neptune), with expertise in data modeling approaches and design patterns for diverse data persistence requirements. Ability to design and implement scalable, high-performance systems from API layer to data persistence, with deep understanding of modern frameworks (Spring Boot), RESTful and GraphQL APIs, microservices architectures, event-driven architectures, and database design patterns.