Java 7/8, JavaScript (ES6+), TypeScript 4.6+, PL/SQL, SQL, Spring Boot 5.3, Spring Framework 5.3, Hibernate 5.6, JPA 2.1, JAX-RS 2.1, Jersey, REST APIs, SOAP, JSON, XML, React 17, AngularJS, Angular, TypeScript, AG Grid 30.0, Chart.js 4.2, react-beautiful-dnd, CSS3, HTML5, Bootstrap, SASS/SCSS, LESS, AWS Lambda, API Gateway v2, S3, DynamoDB, SQS, EventBridge, Secrets Manager, SSM, CloudFront, CodeBuild, STS, Transfer (SFTP), AWS CDK 2.177, CloudFormation, Docker (basic), Serverless Architecture, Oracle 19c+, PostgreSQL, MySQL, Snowflake, DBT (Data Build Tool), Informatica 8.6, Hibernate, JPA, JDBC, Advanced PL/SQL (Cursors, Triggers, Functions, Procedures, Packages, Collections, Dynamic SQL, Bulk Operations), GitLab CI/CD, Nx 21.4, Yarn Workspaces, Maven, Gradle 7.6, Apache Ant 1.9.16, Jenkins, Git, SVN, Yarn, NPM, Jest 29.1, JUnit 4.12, JMockit 1.13, Playwright 1.54, Karma, Jasmine, JaCoCo, ESLint, JSHint, JSCS, ChatGPT, GitHub Copilot (VS Code), Cursor IDE (Claude, GPT-4, GPT-4 Turbo), AI Code Review, Eclipse, IntelliJ IDEA, Visual Studio Code, Cursor IDE, Apache Tomcat 9.x, Jetty, MS Windows, Linux