Daniel Henninger
Operations And Systems Specialist
Garner, North Carolina, United States
Summary
👤
Senior🎓
Top SchoolDaniel Henninger is an operations and systems specialist with 19 years of hands-on experience blending systems administration and software development, currently leading a small team supporting a heterogeneous environment at NC State University's College of Humanities and Social Sciences. He began programming at age five and has spent over a decade combining back-end and full-stack work in education and open source, including notable contributions to the widely used Ignite Realtime projects Smack, Spark, and Openfire. Comfortable across Windows, macOS, and Linux stacks, he architects and maintains reliable services while shipping pragmatic software improvements—from avatar MIME fixes to gateway protocol implementations. He prefers working with products and organizations he believes in, treating his role as something he enjoys rather than a chore, and brings a practical, buy-in driven approach to sustaining real-time communication systems.
19 years of coding experience
13 years of employment as a software developer
Bachelor of Science (BS), Computer Science, Bachelor of Science (BS), Computer Science at North Carolina State University
Github Skills (13)
javas10
xmpp10
spark10
java10
collaboration9
concurrency9
swing9
javaswing9
ui-design9
cross-platform9
android8
networking7
database-design6
Programming languages (10)
Github contributions (5)
igniterealtime/Openfire
Jul 2006 - Oct 2011
An XMPP server licensed under the Open Source Apache License.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1127 commits, 1 comment in 5 years 4 months
Contributions summary:Daniel's commits primarily focused on base code implementation for an XMPP server, specifically the initial development of OSCAR and Yahoo protocol components, as well as a gateway for IM services. The code changes primarily involve the creation and management of base class and gateway structures and also include the creation of basic service discovery responses using Dom4j and implementing various message handlers. These commits included basic database setups, setting up connections, and setting up general service related components for the XMPP service.
openfirexmpp-serverxmpplicensedapache-license
igniterealtime/Spark
Nov 2007 - Sep 2008
Cross-platform real-time collaboration client optimized for business and organizations.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:60 commits in 10 months
Contributions summary:Daniel primarily contributed to the Spark client, with commits focused on improving the user interface and adding new features. These contributions included implementing new features for the user registration dialog, allowing customization of avatar sizes in the contact list, and fixing issues with gateway buttons. Furthermore, the user also modified the codebase to save the main window position and dimensions.
openfirexmppcollaborationsparkxmpp-client
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