Thomas Klausner
Owner at Validad GmbH
Vienna, Austria
Summary
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SeniorThomas Klausner is a seasoned Perl-centric software engineer and entrepreneur with 21 years of experience building backend systems, DevOps workflows, and full-stack applications from Vienna. As owner of multiple ventures including HKS3 and plix.at, co-owner at Validad GmbH, and a longtime contributor to CPAN, he blends hands-on coding with small-business leadership. He currently drives backend and DevOps efforts at Balloon Metainfo XR while maintaining production systems for oe1.orf.at, demonstrating an ability to support both media-grade reliability and experimental XR projects. Known modestly as "just another Perl hacker," his career reveals deep, enduring expertise in Perl ecosystems and practical open-source stewardship. Colleagues describe him as a pragmatic problem solver who prefers shipping robust, maintainable systems over hype.
21 years of coding experience
Github Skills (89)
dpd10
psgi10
plack10
return-value10
command-line10
perl-module10
bearer-token9
perl9
padding9
subversion9
password-generator9
oauth9
blogger9
web-token9
html8
Programming languages (6)
Github contributions (5)
domm/Blio
Nov 2008 - Nov 2022
my blogging "engine"
Contributions:138 commits, 1 PR, 10 pushes in 14 years 2 months
blog-enginebloggingblogging-engine
domm/Plack-Middleware-Auth-JWT
Jun 2017 - Apr 2023
Token-based Auth (aka Bearer Token) using JSON Web Tokens (JWT)
Contributions:2 PRs, 11 pushes, 1 branch in 5 years 10 months
tokenstoken-basedjwt-tokenstokenauthentication
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