David Heffelfinger Email & Phone Number | Independent consultant focusing on Java, Jakarta EE, Microprofile, Java EE and J2EE. Author of several books on Java and related technologies, such as "Java EE 8 Application Development", "Java EE 7 Development with NetBeans 8", "Java EE 7 with GlassFish 4 Application Server" and others. Named as one of 39 Java leaders and experts to follow on Twitter by TechBeacon: http://techbeacon.com/java-leaders-you-should-follow-twitter Expert knowledge in Java EE APIs such as JavaServer Faces (JSF), Enterprise JavaBeans (EJB), Java Persistence API (JPA), Java Messaging Service (JMS), Contexts and Dependency Injection (CDI), Java API for XML Web Services (JAX-WS), Java API for RESTful Web Services (JAX-RS), Java API for WebSocket. Extensive experience with the PrimeFaces JSF component library. Frequent speaker at Java conferences such as JavaOne. Over 20 years of software architecture, design and development. Worked on many large scale Enterprise Java projects for several government and commercial clients including the US Department of Homeland Security, Department of Housing and Urban Devalopment (HUD), Freddie Mac, Fannie Mae, and the US Department of Defense.

David Heffelfinger

Independent consultant focusing on Java, Jakarta EE, Microprofile, Java EE and J2EE. Author of seve...
Washington Dc, Washington Dc, United States

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David Heffelfinger’s Email dheffelfinger@ensode.com

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David Heffelfinger’s Location Washington Dc, Washington Dc, United States

David Heffelfinger’s Current Industry Ensode Technology

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Work Experience

Ensode Technology

Principal Consultant

2007-07-01 00:00:00 - Present

Learning Tree International

Instructor

2007-01-01 00:00:00 - 2011-01-01 00:00:00

Technik

Senior Software Engineer

2006-01-01 00:00:00 - 2008-01-01 00:00:00

International Logic Systems

Senior Software Architect

2005-01-01 00:00:00 - 2006-01-01 00:00:00

Clms

Senior Software Engineer

2003-01-01 00:00:00 - 2005-01-01 00:00:00

Fannie Mae

Senior Software Engineer

2003-01-01 00:00:00 - 2003-01-01 00:00:00

Washington Gas

J2EE Consultant

2003-01-01 00:00:00 - 2003-01-01 00:00:00

Freddie Mac

Senior Software Engineer

2001-01-01 00:00:00 - 2002-01-01 00:00:00

Labportal Com

Technical Lead

2000-01-01 00:00:00 - 2001-01-01 00:00:00

Capital One

Software Engineering Consultant

1999-01-01 00:00:00 - 2000-01-01 00:00:00

Intersections

Senior Software Engineer

2000-01-01 00:00:00 - 2000-01-01 00:00:00

Naval Surface Warfare Center

Computer Scientist

1995-01-01 00:00:00 - 1999-01-01 00:00:00

Skills

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Languages

No Languages Available

FAQ About David Heffelfinger

David Heffelfinger is located at
Washington Dc, Washington Dc, United States

David Heffelfinger is a Independent consultant focusing on Java, Jakarta EE, Microprofile, Java EE and J2EE. Author of several books on Java and related technologies, such as "Java EE 8 Application Development", "Java EE 7 Development with NetBeans 8", "Java EE 7 with GlassFish 4 Application Server" and others. Named as one of 39 Java leaders and experts to follow on Twitter by TechBeacon: http://techbeacon.com/java-leaders-you-should-follow-twitter Expert knowledge in Java EE APIs such as JavaServer Faces (JSF), Enterprise JavaBeans (EJB), Java Persistence API (JPA), Java Messaging Service (JMS), Contexts and Dependency Injection (CDI), Java API for XML Web Services (JAX-WS), Java API for RESTful Web Services (JAX-RS), Java API for WebSocket. Extensive experience with the PrimeFaces JSF component library. Frequent speaker at Java conferences such as JavaOne. Over 20 years of software architecture, design and development. Worked on many large scale Enterprise Java projects for several government and commercial clients including the US Department of Homeland Security, Department of Housing and Urban Devalopment (HUD), Freddie Mac, Fannie Mae, and the US Department of Defense.

David Heffelfinger currently works in the Ensode Technology |

No Languages Available

David Heffelfinger has prior
experience in the following industries:
Learning Tree International | Technik | International Logic Systems | Clms | Fannie Mae | Washington Gas | Freddie Mac | Labportal Com | Capital One | Intersections | Naval Surface Warfare Center

David Heffelfinger has the following professional experience:
Ensode Technology | Learning Tree International | Technik | International Logic Systems | Clms | Fannie Mae | Washington Gas | Freddie Mac | Labportal Com | Capital One | Intersections | Naval Surface Warfare Center