Alexander Lehmann
Technology Consultant at DXC Technology
Frankfurt Rhine-Main Metropolitan Area Germany
Summary
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Rockstar🎓
Top SchoolAlexander Lehmann is a seasoned Technology Consultant based in the Frankfurt Rhine-Main area with 15 years of experience delivering robust back-end systems and test automation for enterprise clients. He has held technical and leadership roles across major organizations including DXC Technology, Hewlett-Packard and Vodafone, combining hands-on development with team-level responsibility. An active open-source contributor to the Vert.x and JBehave projects, he’s focused on cross-platform test reliability, HTTP web client/server robustness and practical examples for mail and networking use-cases. His background in mathematics from TU Darmstadt underpins a methodical, test-driven approach to engineering, and his niche strength is quietly fixing platform quirks that improve reliability for thousands of users.
14 years of coding experience
Technischen Universität Darmstadt
Github Skills (26)
continuous-deployment10
unit-testing10
continuous-integration10
reactive10
async10
testing10
java10
javas10
jenkins10
webclient10
jenkins-ci10
vertx10
devops10
test-automation10
freemarker9
Programming languages (16)
Github contributions (5)
jbehave/jbehave-core
Dec 2011 - Dec 2012
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:121 commits in 1 year
Contributions summary:Alexander primarily focused on improving the JBehave core library by addressing identified bugs and enhancing the codebase's functionality. They updated dependencies, fixed issues related to HTML reports, and corrected encoding problems. They also contributed to improving unit tests, including adding test cases and refactoring existing ones to ensure accurate and reliable results. Their contributions suggest expertise in core library development and test-driven development.
eclipse-vertx/vert.x
Oct 2014 - Oct 2017
Vert.x is a tool-kit for building reactive applications on the JVM
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:72 commits, 34 PRs, 120 comments in 2 years 11 months
Contributions summary:Alexander primarily contributed to improving and testing the `CaseInsensitiveHeaders` class within the Vert.x core. They added the `toString()` method to the class. The user also wrote unit tests, cleaned up existing tests, and fixed checkstyle errors. Additionally, the user contributed to fixing a bug in `NetClientOptions` and contributed to `BlockedThreadCheckerTest` .
non-blockingconcurrencytool-kitevent-loophttp2
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