Juseppe Witless

I build backend systems, bots, and mobile apps end-to-end. On the backend, I work with Python and FastAPI — for example, developing a landing/API service with AI-powered analysis, automated email notifications, rate limiting, and metrics/monitoring built in. I've also built a Telegram bot for a crypto exchange use case, calculating real-time cross-rates (RUB→CNY via USDT) directly from live order book data on an exchange API — so I'm comfortable with both bot logic and working against live market/exchange data.

On mobile, I develop cross-platform apps with Flutter/Dart, including an AI-integrated calorie-tracking app and a data-aggregator app. I also have experience in C#, C++, and Java (including lower-level projects like a password manager), plus JavaScript/React for web front-ends.

I like projects that combine a few of these pieces — a bot with a backend API, an app with AI features, a dashboard pulling live data — and I'm reliable on communication and turnaround. Portfolio examples (including private repos I can walk you through on request) are available via the links in my profile.