Professional Summary
I possess extensive expertise in developing large-scale, real-time applications and backend services. My strength lies in architectural design and strategic management, coupled with a proven ability to lead interdisciplinary teams.
With more than 9 years of experience in the tech industry, I am dedicated to driving innovation and delivering cutting-edge solutions.
Summarized into one sentence: Usually the last person in the office.
Employment History
CTO, TorAlarm GmbH - Düsseldorf, Germany
Jan 2021 – Present
- Lead a team of 7 engineers, responsible for iOS, Android and Backend development
- Responsible for code reviews, interviews and managing the Scrum process
- Interface/Gatekeeper between different departments
- Setup of CI/CD pipelines using Fastlane and Github Actions
- Established a test-driven engineering culture with a strong emphasis on continuous documentation
- Redefined the full architecture on AWS (EC2, RDS, EFS, Lambda, ELB, CloudFront)
- Scaling the infrastructure to process millions of push notifications within seconds
- Shipped hundreds of updates for our iOS/Android apps
- TorAlarm became the number one sports app in multiple countries in the App Store and Play Store
- Coordinated the technical due diligence with various stakeholder - In 2023 TorAlarm was acquired by Axel Springer
Stack: Go, JavaScript, Node.js, Angular, Swift, SwiftUI, Kotlin, Jetpack Compose, AWS, Redis, MongoDB, Serverless, Fastlane, Github-Actions, Jira
Founder & CEO, LameTrain - Berlin, Germany
Feb 2019 – Dec 2020
- Developed a platform for fast and easy refunds in case of train delays
- 1-Click ticket import from the DB-Navigator-App (share sheet extension)
- Created a multi-platform solution (PWA + native iOS app) with automated request evaluation (risk evaluation, routing auto completion)
- Designed and automated payment gateway (SEPA) for customer payouts
- The backend was capable of tracking multiple thousand trains throughout Germany in live (Node.js)
- LameTrain was bootstrapped without external funding.
Stack: React.js, Ant Design, JavaScript, Socket.IO, Node.js, MySQL, Redis, AWS, PWA, Swift, Fastlane
Founder & CEO, Modrena - Berlin, Germany
Dec 2016 – Jan 2019
- Built a SaaS platform for driving schools, with offline capabilities and Android/iOS apps
- Key features included onboarding of new students, employee management, theory lessons (NFC Check-In), signing, fleet management, document management, accounting and analytics dashboards
Stack: React.js, Custom UI Framework, JavaScript, Node.js, MySQL, AWS, Swift, Fastlane
Student Assistant and Tutor, TH Köln - Cologne, Germany
Jul 2012 – Jul 2014
- Wrote a software to automate timetable management in PHP
- 90% time saved in relation to the previous process
- Gave lectures on web technologies such as HTML5, SVG and CSS
Software Dev Intern, SAP AG - Palo Alto, United States
Jul 2013 – Nov 2013
- Developed a Touch-Webapp with an Organic Design Concept (Patent granted)
- Created an internal web-based Project Management Tool (GANTT)
Tech: Three.JS, jQuery, PHP, MySQL, HANA, JavaScript
Software Dev Intern, Inter Component Ware AG - Walldorf, Germany
Aug 2011 - Sep 2011
- Gained experience in software development basics, including Scrum and Java