About Kai
German
Native or bilingual
English
Native or bilingual
Experience
- BB Tracker (Solo Project)Solo DeveloperApril 2026 - Today (2 months)Madrid, SpainNative 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 - Today (7 months)Madrid, SpainiOS 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 EntrepreneurJanuary 2026 - Today (5 months)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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Education
- Dual Bachelor — Business Administration and Computer Science & AIIE UniversityDual Bachelor — Business
- International Baccalaureate (IB) DiplomaMunich International School2025International Baccalaureate (IB) Diploma