The fastest football app on the market! - More than 25 million downloads- Responsible for a team of 7 engineers (iOS, Android, Backend)- Hands on role: Code reviews, conducting interviews, scrum process, OKR- Interface/Gatekeeper between different departments - Redefining the full architecture on AWS- Scaling the infrastructure to handle multiple millions of MAUs and billions of push notifications- In 2023 TorAlarm was acquired by Axel Springer (Europe’s leading digital publisher)Stack: Go, JavaScript, Node.js, Angular, Swift, Kotlin, AWS

Platform for fast and easy refunds in case of train delaysCapabilities:- Multi platform solution to request refunds (PWA + native ios app)- Automated algorithm to evaluate requests- Large scale train schedule analytics- Automated payments gateway to handle customer payouts- Completely bootstrapped without external fundingStack: React.js, Ant Design, JavaScript, Node.js, MySQL, Redis, AWS, PWA, Swift

Software as a Service for driving schoolsCapabilities:- Web based interface (offline capabilities)- Android + iOS App- Onboarding of new students- Employee management- Theory lessons- Signing- Fleet management- Document management- Accounting- Dashboard and analyticsStack: React.js, Custom UI Framework, JavaScript, Node.js, MySQL, AWS, Swift

- Responsible for timetable management- Giving lectures for web technologies like HTML5, SVG and CSS

- Touch-Webapp with an Organic Design Concept (Patent granted)Tech: Three.JS, jQuery, PHP, MySQL, HANA, JS- Development of an internal Web-Projectmanagementtool like GANTTTech: jQuery, PHP, MySQL, CSS, JS, ResponsiveWebdesign, HTML5