Platform engineering and cloud architecture for digital healthcare platform providing sick leave certificates. Previously served as CTO, transitioned to hands-on engineering as company matured.

• Architected and maintain microservices infrastructure on GCP
• Leading transformation from Cloud Functions to managed APIs on Kubernetes (GKE)
• Implemented GitOps workflows and CI/CD pipelines for automated deployments
• Set up API management portal using Gravitee for developer experience and governance
• Implemented infrastructure as code using Pulumi
• Designed and built RESTful APIs powering web and mobile clients
• Integrated payment systems (PayPal, Adyen), logistics (Deutsche Post), and healthcare APIs
• Lead technical decisions and consult engineers on architecture and best practices

Full stack development for a social gaming platform connecting gamers. Short engagement before transitioning to Au-Schein, but gained valuable experience with modern frontend frameworks and real-time data systems.

• Built interactive UI components using React with TypeScript for type-safe development
• Implemented real-time features using Firebase Realtime Database for live gaming sessions
• Worked with PostgreSQL for persistent data storage and complex queries
• Collaborated in agile team environment with rapid iteration cycles

Selected for prestigious Resident Entrepreneur program at Hasso Plattner Institute's health cloud initiative. Led R&D efforts bridging cutting-edge research with practical healthcare applications, wearing multiple hats from technical architecture to international representation.

• Created architectural concepts for voice recognition software and data collection platform
• Built functional prototypes to validate product hypotheses before full development investment
• Represented Data4Life at HIMSS 2019 in Orlando, demonstrating products to potential partners
• Conducted technical interviews and recruited mobile development team for Barcelona office expansion

Research position at German Research Center for Artificial Intelligence (DFKI), one of the world's largest AI research institutions. Focused on context-aware computing and adaptive systems research.

• Conducted comprehensive literature review of existing survey systems, identifying gaps in context-awareness
• Designed and implemented rule-based dynamic survey engine that adapts questions based on external factors
• Integrated location services and weather APIs to demonstrate context-aware question branching
• Architected extensible system for future sensor data integration (accelerometer, heart rate, etc.)
• Published research findings and contributed to academic knowledge base

Industry collaboration between Fraunhofer Institute for Experimental Software Engineering and John Deere European Technology Innovation Center. Part of Master's program team project developing next-generation agricultural technology interfaces.

• Designed intuitive UI screens for speech recognition feature targeting farmers operating heavy machinery
• Created wireframes and interactive prototypes following John Deere's design system guidelines
• Practiced pair programming with experienced developers, accelerating learning curve
• Participated in SCRUM ceremonies including daily standups, sprint planning, and retrospectives
• Prototype successfully demonstrated to stakeholders and later integrated into MyJohnDeere mobile app