Truc D.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

• 10+ years experiences of software development (full stack developer) • Strong in Java, SQL, JavaScript/TypeScript, HTML, CSS/SCSS, JSON, XML, … • Proficient in many Back-End frameworks: Spring (Spring Boot, MVC, Security, Data), ActiveMQ, Kafka, JEE, JSP-Servlet, JPA, Hibernate, Vaadin, Oracle OSGI, CQ5 (AEM), Elastic Search, Mockito, Cucumber, SWT, … • Proficient in many Font-End frameworks: Angular JS (1.x & 2.x), React JS, Redux, JQuery, Handlebars JS, Bootstrap, NodeJS, GruntJS, … • Proficient in programing tools: IntelJ, Eclipse, Git, Maven, Gradle, SVN, Source Tree, Postman, Curl, Puty, FileZilla, Visual Studio Code, … • Proficient in database management system: Mongo, Oracle, SQL Server, MySQL, PostgreSQL, SQLLite. • Experienced in other technologies: AI (Text Recognition), Android, .NET, IoT (Aduino), InstallShiedl, Makefile, SignTool… • Experienced in setup and configure Linux/Windows/Mac servers and CI/CD tools like Docker, Kubernetes, Ansible, Helm Chart, AgroCD, WinRM… • Proficient in office tools and drawing tools (got the MOS certification in 2012). • Strong problem solving and analytical skills. • Experienced in software design and manage a small team. • Willing to take challenge and learn new things.