Steffen Lindner
Entwickler Und Projekmanager at starzel.de
Münster, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolSteffen Lindner is a seasoned developer and project manager based in Münster with 13 years of experience building web applications and running his own companies. He combines hands-on front-end work—contributing UI components, keyboard shortcuts and tests to the popular Nextcloud Mail app—with back-end fixes and upgrade enhancements to core projects like ownCloud. As founder of Portknox and lead at starzel.de, he blends entrepreneurial ownership with delivery-focused engineering across clients and open-source ecosystems. His background in information systems and computer science (Stuttgart Media University, Reutlingen) underpins a pragmatic approach to software architecture and maintainability. Notably, he moves comfortably between refactoring UI components and improving server upgrade paths, a sign of broad full-stack fluency and attention to long-term stability.
13 years of coding experience
5 years of employment as a software developer
Master's degree Informationswirtschaft, Master's degree Informationswirtschaft at Stuttgart Media UniversityDiplom-Informatiker (FH), Diplom-Informatiker (FH) at Reutlingen University
Github Skills (15)
php10
javascript10
file-sharing10
owncloud10
handlebars10
back-end-development10
vue-jsx9
nextcloud9
testing9
vue9
html9
configuration-management9
css8
marionette8
single-page-application7
Programming languages (20)
Github contributions (5)
nextcloud/mail
Sep 2016 - Aug 2018
💌 Mail app for Nextcloud
Role in this project:
Front-end Developer
Front-end DeveloperContributions:2 releases, 55 commits, 53 PRs in 1 year 11 months
Contributions summary:Steffen primarily focused on front-end development tasks within the Nextcloud Mail app. They implemented and updated UI components, including settings, navigation, and keyboard shortcuts, and also added tests for these components. Their contributions involved refactoring code, such as converting Handlebars helpers to view components and restructuring the settings menu, indicating a focus on improving the user interface and application structure. Furthermore, they made changes related to the testing framework and associated configuration files.
smtpmailwebmailmail-appnextcloud
owncloud/core
Jun 2014 - Oct 2015
:cloud: ownCloud web server core (Files, DAV, etc.)
Role in this project:Back-end Developer
Back-end DeveloperContributions:10 commits, 8 PRs, 3 pushes in 1 year 4 months
Contributions summary:Steffen contributed to the core functionalities of the ownCloud web server. The commits showcase the user's involvement in bug fixing, such as addressing a typo in sendmail detection and initializing a dummy memory session. They also made code adjustments to the upgrade process, introducing an option to skip disabling third-party applications and adding documentation to the configuration file.
owncloudweb-serverjstreeself-hostingjavascript
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