Portfolio
A selection of Android apps I've built — from MVPs to production releases.
CryptoVault Wallet
Non-Custodial Crypto Wallet MVP
A full-featured, self-custody Android wallet supporting multiple blockchains. Built with Kotlin, Web3j, and Android Keystore. Private keys never leave the device. Currently in internal beta testing.
LogiTrack Pro
Logistics & Delivery Tracking App
Real-time parcel tracking app for a Spanish logistics startup. GPS tracking, push notifications, driver dashboard, and client-facing delivery status view.
FitFlow
Personal Training & Workout App
Workout tracker with custom exercise builder, video demos, progress graphs, and a coach-to-client messaging system. Supports offline use with full data sync on reconnect.
InvoiceGo
Freelancer Invoicing & Finance Tool
Simple invoicing app for freelancers: create, send and track invoices as PDFs, expense logging, VAT calculation, and multi-currency support. Designed for the EU market.
TableReserve
Restaurant Booking App MVP
A 3-week MVP for a restaurant chain: table reservations, waitlist management, QR check-in, and a restaurant admin panel. Delivered under tight deadline for Series A pitch.
GreenHome
Smart Home Energy Monitor
IoT companion app for home energy monitoring devices. BLE connectivity, real-time usage charts, monthly reports, and smart alert system for peak consumption.