Jan Cizmar
Founder & CEO at Tolgee
Brno, South Moravia, Czechia
Summary
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Rockstar🎓
Top SchoolJan Cizmar is a founder and full-stack software engineer with over a decade of experience building web applications and shipping developer-friendly tooling. As CEO of Tolgee, he turned a personal pain point from earlier roles into an open-source localization platform, leading product, engineering and investor relations since 2021. Deeply pragmatic, he pairs Typescript and Kotlin expertise with rigorous testing practices learned at Oracle to deliver reliable back-end APIs and developer workflows. His contributions to tolgee-platform show hands-on work across Java-based translation services, API design and data management, reflecting a founder who still codes core features. Based in Brno, he blends startup leadership with a continuous-learning mindset shaped by academic exchange at TUM and long-term maintenance of user-facing systems dating back to his student projects.
9 years of coding experience
9 years of employment as a software developer
Gymnázium Brno, třída Kapitána JarošeFaculty of informatics - Applied informatics, Master's degree, Faculty of informatics - Applied informatics, Master's degree at Masarykova univerzita BrnoBachelor's degree, Economic Informatics, Bachelor's degree, Economic Informatics at Faculty of Business and Economics, Mendel University in BrnoInformatics (Erasmus+ program), Informatics (Erasmus+ program) at Technische Universität München
Stackoverflow
359reputation
25kreached
17answers
9questions
Github Skills (15)
javas10
java10
spring-boot10
database-management9
apidoc9
api9
caching6
stripe-payments6
algorithm6
jpa6
javascript6
spring-data-jpa6
sorting6
metamodel6
gradle6
Programming languages (18)
Github contributions (5)
tolgee/tolgee-platform
Oct 2020 - Jan 2023
Developer & translator friendly web-based localization platform
Role in this project:
Back-end Developer
Back-end DeveloperContributions:863 reviews, 932 commits, 1859 PRs in 2 years 3 months
Contributions summary:Jan primarily contributed to back-end development, making several changes to the Java source code related to the translation service, including fixing escaping in key strings and refactoring translation-related classes. The user made modifications in the controllers, data transfer objects and repositories, indicating they are involved in the API implementation and data management. The changes touched both core functionalities and API endpoints within the localization platform.
localizationlocalization-toolinternationalizationi18ni18next
tolgee/language-util
Jun 2021 - Apr 2024
Language utility for Tolgee localization tool.
Contributions:1 PR, 14 pushes, 2 branches in 2 years 11 months
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