Hal Deadman
Software Engineer
Virginia, United States
Summary
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RockstarHal Deadman is a pragmatic software engineer with 12 years of experience focused on back-end systems, identity/authentication, and server stability. Based in Virginia, he contributes to major open-source projects like Openfire (XMPP server) and Apereo CAS (single sign-on), where his work spans bug fixes, database migration correctness, certificate handling, and authentication flow improvements. He has hands-on expertise resolving tricky issues such as authentication stack overflows, Oracle schema upgrade problems, and Thymeleaf/null-pointer edge cases. Hal blends careful troubleshooting with incremental feature delivery—adding SSL valve support for Tomcat and improving account handling—demonstrating a preference for durable fixes over band-aid patches. Colleagues rely on him to harden production systems and to navigate the intersection of security, compatibility, and operational resilience. An under-the-radar strength is his knack for improving legacy codebases to reduce real-world outages while enabling modern auth workflows.
11 years of coding experience
Github Skills (19)
xserver10
xmpp10
oracles10
admin10
back-end-development10
databases10
authentication10
user-authentication10
database-administration10
java10
javas10
oracle10
spring-boot10
openfire10
database10
Programming languages (17)
Github contributions (5)
apereo/cas
Feb 2017 - Dec 2022
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:59 reviews, 460 commits, 356 PRs in 5 years 11 months
Contributions summary:Hal primarily contributed to the Apereo CAS project by fixing bugs and implementing new features related to the Acceptable Use Policy and other authentication flows. They corrected issues in Thymeleaf templates, addressed null pointer exceptions, and enhanced the handling of user accounts. Furthermore, the user worked on adding features such as SSL valve support for Tomcat and implemented changes related to the database and file system.
signwebssoapereoapache2identity
igniterealtime/Openfire
Aug 2016 - Feb 2017
An XMPP server licensed under the Open Source Apache License.
Role in this project:Back-end Developer
Back-end DeveloperContributions:10 commits, 6 PRs, 11 comments in 6 months
Contributions summary:Hal primarily contributed to bug fixes and improvements related to the Openfire XMPP server. They addressed issues in database schema upgrades for Oracle databases, ensuring compatibility and correctness. Their work also involved enhancing the codebase, such as improving class loading and resolving an authentication-related stack overflow error. The user also modified the code to improve the handling of certificates, focusing on stability and robustness of the application.
openfirexmpp-serverxmpplicensedapache-license
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