Languages
XML/XSLT, SQL, Hibernate Query Language (HQL), XSD, Java, Bash, CSS, JavaScript, HTML, Python, Java SE, XML, XSLT, Java SE 7, Java SE 8, C++
Frameworks
Spring, Spring Batch, Swing, Spring MVC, Apache CXF, Spring Boot, Selenium, Hibernate, JPA, OAuth 2, XMLBeans, gRPC, JUnit, JSF, Swagger
Libraries/APIs
JAX-WS, JAX-RS, JAXB, Spring REST, JMS, Java Servlets, Apache Lucene, JMX, EasyMock, JFreeChart, Interactive Brokers API
Tools
GitHub, Maven, Git, Subversion (SVN), AWS Step Functions, Docker Compose, Java Concurrency, SoapUI, Apache Tomcat, LaTeX, Jenkins, GitLab CI/CD, IntelliJ IDEA, Apache Solr, MATLAB, Gradle, Apache Ant, GitLab
Paradigms
Continuous Integration (CI), REST, Object-oriented Programming (OOP), Object-oriented Design (OOD)
Platforms
Java EE, Jakarta EE, JSE, AWS Lambda, Apache Kafka, Docker, JavaFX, Ubuntu, Java SE 6, WebSphere, Amazon Web Services (AWS), Oracle, Linux, JBoss, Kubernetes
Storage
JSON, Elasticsearch, MySQL, PostgreSQL, H2, Amazon DynamoDB, Redis, MongoDB, NoSQL, Amazon S3 (AWS S3), Cassandra
Other
SOAP, Enterprise Java Beans (EJB), Network Protocols, SSL, NIO, Sparx Enterprise Architecture, OAuth, Fuzzy Logic, Mathematics, Serverless, Ant, WebLogic, Brokers, Mechatronics, JAVA EE 6, Web Services, EJB3