About
I'm a Berlin-based developer focused on building fast, thoughtful digital products. My strongest work sits where clean frontend execution, practical product thinking, and reliable implementation come together.
I work mainly with Next.js, React, TypeScript, and Tailwind CSS, and I also enjoy technical projects involving Raspberry Pi, Arduino, sensors, and control logic. I'm especially interested in work where usability, performance, and engineering all matter.
Selected Work
"Was ist das?" — Object Recognition App for Children
An offline-capable iOS app: a child scans an everyday object and hears a child-friendly spoken answer, built for kids who can't read yet. 48 object classes, trained from Open Images v7 and COCO data, with ElevenLabs-generated speech. ~85% validation accuracy, fully offline — no network, no data leaves the device.
SentryPDF
A multilingual PDF and document-processing web app, designed and shipped solo end-to-end. The interesting technical decision: it started fully browser-local for privacy, but large and complex PDFs forced a hybrid model — simple operations stay local, heavy work runs on short-lived Docker services with prompt deletion.
Autonomous Vacuum Cleaning Robot
My part of a four-person team project: Raspberry Pi and LiDAR programming and sensor integration, Streamlit visualizations for analysis and demos, plus the complete 3D CAD (Autodesk Inventor Professional) and 3D printing.
Intelligent Document Processing System
A locally-operated OCR and document-processing pipeline for a client in environmental engineering: multi-engine OCR across 50+ languages, NLP-based structured extraction, PostgreSQL storage, semantic vector embeddings, and a search frontend for scientific PDFs and scanned lab and research documents. No-cloud operation, chosen for privacy and GDPR compliance.
IDtoPDF & ArticleToPDF
Two smaller products shipped and maintained solo. IDtoPDF: a privacy-first ID document combiner that runs entirely in the browser, nothing uploaded. ArticleToPDF: an article-to-PDF converter built on Mozilla Readability.
Experience
Founder & Product/Frontend Developer
SentryPDF
Designed, built, and shipped a multilingual PDF and document-processing web app solo — product structure, UI architecture, auth, payments, deployment, and ongoing operation. The original architecture processed everything browser-locally for privacy; large and complex PDFs forced a hybrid model where simple operations stay local and heavy work goes to short-lived Docker services with prompt deletion.
Software Development Internship (Full-Time) — Backend
AMENDIO
Implemented and extended business logic, data modeling, and data integration with Prisma, PostgreSQL, and Supabase. Worked on authentication and account flows and the interfaces between backend, database, and frontend, in a three-person team using GitHub, GitLab, and Vercel. Hardest problem: connecting a separately maintained cal.com repository to the main platform despite differing data models and auth.
Software Development Project — Frontend
AMENDIO
Part of a small team building a scalable web platform to replace an existing Webflow/no-code solution. Built responsive interfaces, UI components, user flows, and forms with React, Next.js, TypeScript, React Hook Form, and Zod, and co-developed validation logic and frontend/backend integration.
Skills
Frontend
React, Next.js, TypeScript, JavaScript, Tailwind CSS, shadcn/ui, React Hook Form, Zod, HTML, CSS
Backend & Data
Node.js, NestJS, Prisma, PostgreSQL, MySQL, Supabase, REST APIs, OAuth, JWT
Mobile & ML
Swift, SwiftUI, Core ML, Create ML
Infrastructure
Docker, Docker Compose, GitHub Actions, Vercel, Fly.io, systemd, Linux (Ubuntu, Fedora, Raspberry Pi OS), SSH, DNS/SPF/DKIM/DMARC
Embedded & Hardware
C, C++, Python, Arduino, Raspberry Pi, LiDAR, NRF24L01+, Sensors, Servos
CAD & Engineering
Autodesk Inventor Professional, AutoCAD, 3D Printing, Star-CCM+ (CFD)
Ways of Working
Git, Scrum, Agile Project Management, UML Modeling, Jira (basic), Rapid Prototyping
Education
B.Sc. Engineering Informatics
HTW Berlin
B.Sc. Computer Science
Heinrich Heine University Düsseldorf
Transferred to HTW Berlin for a more practice-oriented, hands-on engineering informatics program
Languages
More Projects
Wireless Flex-Sensor Assistive Robotic Hand
A glove with flex sensors drives a servo-actuated robotic hand over an NRF24L01+ radio link.
Dual-Arduino Climate Monitoring System
An Uno R3 reads DHT22 temperature/humidity, drives a DC motor via PWM, and outputs to an RGB LED and 16×2 LCD; it sends UART diagnostics to an Uno R4 WiFi that serves an HTML dashboard over Wi-Fi. Code modularized into pwm/rgb_led/uart/utils components.
Coffee Shop Management App
A Windows desktop application covering orders, POS/cashier, inventory, and customers. Sole developer.