Jens Theeß
CTO at subshell GmbH
Hamburg, Germany
Summary
👤
Senior🎓
Top SchoolJens Theeß is a seasoned software engineer and CTO based in Hamburg with two decades of experience spanning embedded systems to cloud-native platforms and over a decade in leadership at subshell GmbH. He blends hands-on backend development—evidenced by contributions to Rocket.Chat improving mention and notification logic—with strategic product and team growth, having helped service notable clients like tagesschau.de. His career includes enterprise IT consulting at Volkswagen and long-term embedded work, giving him a rare ability to translate low-level constraints into scalable server-side solutions. Known for pragmatic engineering and iterative delivery, he fosters agile teams that ship secure, production-ready systems.
11 years of coding experience
17 years of employment as a software developer
Engineer’s Degree (Diplom), Computer Software Engineering, Engineer’s Degree (Diplom), Computer Software Engineering at Technical University of Braunschweig
Stackoverflow
580reputation
61kreached
10answers
2questions
Github Skills (20)
javascript10
back-end-development10
meteor9
apidoc8
mongodb8
api8
mongodb-database8
realtime8
chat7
collaboration7
jenkins6
swt6
maven6
macos6
hudson6
Programming languages (7)
Github contributions (5)
RocketChat/Rocket.Chat
Oct 2015 - Oct 2015
The communications platform that puts data protection first.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits, 1 PR, 7 comments in 8 days
Contributions summary:Jens contributed to the Rocket.Chat platform by modifying server-side code, particularly within the `packages/rocketchat-lib/server/sendMessage.coffee` file. Their work focused on improving notification logic, specifically for the `@all` mention functionality and push notifications. They also updated the code to use `RocketChat.models.Users`, demonstrating an understanding of the system's data model.
meteordata-protectionchatjavascriptcollaboration
teetrinkers/eisbaer
Sep 2019 - May 2021
Eisbär - read-only android app for https://bear.app
Contributions:73 commits, 2 PRs, 24 pushes in 1 year 7 months
androidandroid-appkotlinbearread-only
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