Expertise in the Java programming language encompasses in-depth knowledge of the Spring Boot ecosystem. Competence extends to the development of RESTful APIs and Microservices architectures, ensuring robust backend services. Proficiency in unit testing is demonstrated using JUnit and Mockito, which underpins quality assurance. A solid foundation in database management is evidenced by experience with both SQL databases, such as MySQL, PostgreSQL, and SQLite, and NoSQL databases, including MongoDB, Redis, and CouchDB. Git version control, RabbitMQ messaging, Jenkins for continuous integration, Docker for containerization, Kubernetes for orchestration, and AWS cloud services such as Lambda, SQS, and S3 are also within the skill set. Additionally, knowledge of WebFlux facilitates effective asynchronous programming.