Harald Pehl
Software Engineer at Red Hat
Würzburg, Bavaria, Germany
Summary
👤
Senior🎓
Top SchoolHarald Pehl is a seasoned software engineer with 16 years of experience, currently contributing to IBM and previously serving as Principal Software Engineer on Red Hat’s WildFly/EAP core team. He specializes in Java, GWT and RESTful services and leads the HAL management console component for WildFly, combining deep backend expertise with practical front-end framework knowledge. His open-source work includes performance-focused improvements to WildFly’s caching and HTTP GET handling and enhancements to core runtime HTTP/CORS behavior, demonstrating attention to protocol correctness and server efficiency. Earlier roles span full-stack development, training, and CTO-level platform design, reflecting an ability to move between architecture and hands-on implementation. Based in Würzburg, Germany, he brings a pragmatic, long-term perspective to distributed server systems and developer tooling. A not-obvious strength: he blends production-grade server optimizations with UX-aware console leadership, ensuring management tools are both efficient and usable.
16 years of coding experience
14 years of employment as a software developer
Diplom Informatiker (FH) Wirtschaftsinformatik, Diplom Informatiker (FH) Wirtschaftsinformatik at Technical University of Applied Sciences Würzburg-Schweinfurt (THWS)
English
Stackoverflow
26reputation
193reached
1answer
0questions
Github Skills (23)
cors10
annotations10
http10
model-view10
mvp10
gwt10
undertow10
java10
javas10
http-caching10
annotate10
api-design9
restful-api9
api-rest9
rest-api9
Programming languages (12)
Github contributions (5)
wildfly/wildfly
Nov 2014 - Dec 2022
WildFly Application Server
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 9 commits, 117 PRs in 8 years 2 months
Contributions summary:Harald primarily focused on enhancing the caching mechanisms and improving the efficiency of HTTP GET operations within the WildFly application server. Their work involved modifying code related to cache validation, the handling of ETag headers, and adjusting the response format to include the complete model node. Additionally, the user updated test cases to align with the changes made to the GET operations, ensuring the correctness of the implemented caching strategies. These changes likely improved the server's performance and adherence to HTTP caching standards.
javawildflydockerapplication-server
wildfly/wildfly-core
Feb 2015 - Nov 2022
The core runtime that is used by the WildFly application server
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 9 commits, 5 PRs in 7 years 10 months
Contributions summary:Harald contributed to the core functionality of the WildFly application server, focusing on the domain-http interface. Their work included adding a GZIP handler for the management endpoint, adding the 'Vary: Origin' header for CORS responses, and updating/revisiting HTML resources. Additionally, the user removed unused CSS classes, improving the code's cleanliness and efficiency. These commits reflect contributions to web server configuration and the enhancement of cross-origin resource sharing (CORS) functionality.
wildflymavenruntimerundeckweblogic
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