Über Kai
I ship software end-to-end, from idea to deployed product. Recent work: a paid macOS menu bar app distributed to university students (Python, Playwright, Lemon Squeezy payments, code-signed .dmg, Netlify) and an iOS social driving app built solo in React Native and TypeScript (~44k lines, Supabase Realtime, App Store pipeline). I handle the full stack: backend automation, browser scraping, mobile frontends, payments integration, and deployment. Native German and English speaker, useful if you need someone who communicates clearly across the DACH market. Available for automation scripts, macOS/iOS apps, backend integrations, and AI tooling.
Deutsch
Muttersprachlich oder zweisprachig
Englisch
Muttersprachlich oder zweisprachig
Nur remote
Führt Projekte hauptsächlich remote aus
Projekt- und Berufserfahrung
- BB Tracker (Solo Project)Solo DeveloperApril 2026 - Heute (3 Monate)Madrid, SpanienNative macOS menu bar app distributed to IE University students: surfaces live grades, weighted averages, and attendance from Blackboard Ultra. Built end-to-end solo: Python/Playwright browser automation against Microsoft SSO, native macOS UI with Cocoa/WebKit, payments via Lemon Squeezy, in-app auto-updater, and .dmg distribution. ~5,700 lines across 10 modules.
- Project Apex (Solo Project)Solo DeveloperNovember 2025 - Heute (8 Monate)Madrid, SpanieniOS social driving app built solo in React Native and TypeScript. Core features include real-time GPS tracking with background recording, sprint timing with accelerometer-assisted launch detection (±40ms accuracy), live group convoys with push-to-talk audio over Supabase Realtime, segment leaderboards, and a full gamification system (XP, 108 achievements, season leagues). ~44,000 lines of TypeScript across 186 source files, 32 screens, 38 database tables. Pending App Store submission.
- IEU LABs — Startup LabStudent EntrepreneurJanuar 2026 - Heute (6 Monate)Madrid, Spain
- Conducting discovery research and customer validation for a B2B SaaS venture in workflow automation
- Applying lean startup methodology: market sizing, competitor analysis, user interviews, and iterative product scoping
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Ausbildung und Abschlüsse
- Dual Bachelor — Business Administration and Computer Science & AIIE UniversityDual Bachelor — Business
- International Baccalaureate (IB) DiplomaMunich International School2025International Baccalaureate (IB) Diploma