David R. Heffelfinger

About the Author

David R. Heffelfinger is a seasoned software developer and prolific author with over two decades of experience in Java technologies and enterprise application development. Holding a degree in Computer Science, he has worked on numerous high-profile projects for Fortune 500 companies, specializing in full-stack solutions using modern frameworks. As a recognized expert in the Java EE ecosystem, David has contributed to open-source communities and delivered training sessions worldwide. His writing demystifies complex technical concepts, making them accessible to developers at all levels. In his acclaimed book, Java EE 8 Application Development: Develop Enterprise applications using the latest versions of CDI, JAX-RS, JSON-B, JPA, Security, and more, he provides practical guidance on building robust, scalable applications with the latest Java EE standards. When not coding or writing, David enjoys exploring emerging technologies and mentoring aspiring programmers.