Featured Project

Vimmo

Co-Founder & Lead iOS Developer · Apr 2026 — present

LiveApp Store

iOS app that helps renters in Germany and the Netherlands evaluate apartments before they sign. Generates AI property reports from Vertex AI Gemini 2.5 Flash combined with 2022 Census geodata (100m grid, 94.4% coverage) and OSM/BigQuery. The rental-contract scanner uses VisionKit and runs 47 automated legal checks against German BGB / Mietpreisbremse / BGH precedents and Dutch WWS — GDPR-compliant with 15-minute auto-delete.

• Swift
• SwiftUI
• @Observable
• Vertex AI
• VisionKit
• Node.js
• Cloud Run
• BigQuery ETL
• StoreKit 2

Featured Project

JOPO AI

Founder & CEO · Mar 2025 — Mar 2026

Live

B2B SaaS that automates campaign management for performance-marketing agencies. Full-stack dashboard with 24/7 monitoring of Google Ads and Meta Ads on 15-minute sync intervals. ARIMA anomaly detection runs in BigQuery ML; an Auto-Execute engine performs ROAS-drop rollback. Vertex AI Gemini 2.5 Pro powers a 7-day ROAS forecast and a 10-pillar account audit that compresses 4–6 hours of manual work into two minutes.

• React
• TypeScript
• Tailwind
• Node.js
• Firebase
• Cloud Run
• BigQuery ML (ARIMA)
• Vertex AI
• Google Ads API
• Meta Marketing API

Featured Project

Canto

Solo Developer · Apr 2026 — present

TestFlight

iOS AI piano practice app for self-taught advanced players — Bach, Chopin, Debussy — a segment underserved by beginner-focused apps. Sheet music renders with Verovio WASM inside a WKWebView via a bidirectional Swift–JS bridge for real-time bar highlighting. CoreMIDI + AVAudioUnitSampler handle MIDI; pitch detection runs from the mic. Gemini 1.5 Pro evaluates played bars against the reference, GCP Neural2 TTS speaks feedback, STT captures voice responses.

• Swift
• SwiftUI
• MVVM
• Gemini 1.5 Pro
• Verovio WASM
• CoreMIDI
• AVAudioUnitSampler
• WKWebView Bridge
• Firebase Firestore
• GCP TTS/STT