Juri Leino
Member Of QT4 Community Group at eXist Solutions GmbH
Berlin Metropolitan Area Germany
Summary
👤
Senior🎓
Top SchoolJuri Leino is a Berlin-based Product Owner and senior engineer with 13 years of experience building and leading web and backend projects, currently steering product and technical work around the eXist-db XML database. He combines hands-on development—JavaScript, Java and XQuery—with product leadership, having moved from freelance web development into tech lead and core developer roles. His open-source contributions to the well-known eXist-db project emphasize test quality and XQuery correctness, reflecting a focus on reliability and maintainability. Comfortable across front-end UX and backend systems (NodeJS, CouchDB, Redis, Azure), he repeatedly bridges product requirements and implementation. Colleagues value him for pragmatic problem-finding and iterative improvement—an “(re)searching the optimal solution” mindset that shows in both code and product decisions.
13 years of coding experience
8 years of employment as a software developer
Abitur, Abitur at Hermann-Hesse-OberschuleTechnische Universität Berlin
German, finnisch, English, French
Stackoverflow
1,885reputation
284kreached
72answers
11questions
Github Skills (17)
xquery10
xml10
node-module9
xpath9
unit-testing8
application-server7
jquery-selectors6
html6
nodejs6
php6
icu6
websocket6
xml-schema6
jquery6
exist-db6
Programming languages (20)
Github contributions (5)
eXist-db/exist
Jan 2019 - Jan 2023
eXist Native XML Database and Application Platform
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 488 reviews, 193 commits in 4 years 1 month
Contributions summary:Juri primarily contributed to the eXist-db project by adding and improving test suites. Their work involved writing XQuery code to test features like boolean sequences, literals in curly braces, and the `parse-ietf-date()` function. They also refactored existing test suites and addressed issues related to map constructors and function arity, showcasing a focus on code quality and correctness within the XQuery engine.
nosqlxml-databasexmlxprocxquery
eXist-db/gulp-replace-tmpl
Dec 2020 - Sep 2021
Replace placeholders in files
Contributions:1 release, 10 commits, 1 PR in 9 months
placeholdersreplace-placeholders
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