Clemens Uhlenhut
Founder at xml-buddy.com
Austria
Summary
👤
Senior🎓
Top SchoolClemens Uhlenhut is a founder and seasoned software engineer with over 12 years of experience building developer-focused tools for XML and JSON processing. He is the creative force behind JSONBuddy and XML ValidatorBuddy, shipping features like a JSON Schema-aware editor, validation debugger, Schematron support and batch validators that streamline data workflows. Clemens combines deep expertise in back-office database solutions and web interfaces with a long history of hands-on product development dating back to Mac-based database and digital imaging projects in the 1990s. His work emphasizes practical data conversion and validation tooling that integrates into business operations, and he often bridges the gap between schema-driven validation and pragmatic developer UX. Based in Austria, he brings both entrepreneurial drive and low-level technical craftsmanship to niche but mission-critical data tooling.
12 years of coding experience
16 years of employment as a software developer
Ing., IT, Ing., IT at Höhere Technische Bundeslehranstalt Wien 22
English, German
Github Skills (22)
ietf10
json-schema10
api10
api-rest9
open-source8
test-suite6
jmespath6
csv-reader5
csv5
api-documentation5
jsonpath5
json4
validation4
bson3
cpp3
Programming languages (5)
Github contributions (5)
Clemens-U/jsonbuddy
May 2023 - Mar 2026
Contributions:21 pushes, 1 branch in 2 years 10 months
Clemens-U/JSON-Schema-Test-Suite
Jun 2018 - May 2022
A language agnostic test suite for the JSON Schema specifications
Contributions:3 pushes in 3 years 11 months
agnosticlanguage-agnosticspecificationsjson-schemajson
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