Leonardo S.

I build two things that rarely come from the same person: embedded hardware that ships, and AI systems that run real businesses. On the hardware side, I design end to end. Custom PCB in EasyEDA through JLCPCB manufacturing (BOM, Gerber, CPL), then the firmware that runs on it: ESP32 S3, C3 and C6, FreeRTOS dual core architecture, BLE, WiFi, MQTT, OTA updates, ultra low power design. Seven custom boards manufactured with full SMT assembly, 10K+ lines of production firmware, one patent filed with 226 claims on adaptive battery management with Edge AI, and a published research paper on wireless power infrastructure. On the AI side, I build agents that do real work, not demos. I currently run an autonomous business agent in production for a service business: it handles customer conversations on WhatsApp, books appointments through calendar integration, reads payment receipts with vision AI, and reconciles the money at the end of the day, with a human takeover bridge through Telegram. Multi tenant architecture, ready to onboard new businesses. I also build algorithmic trading systems with full ML data pipelines, where every strategy is validated against out of sample data before it touches a live account. What clients get from me: someone who understands the whole chain. The sensor, the board, the firmware, the radio, the backend, the AI layer, and the business result it has to produce. I flag risks early, I document everything, and I deliver with receipts, build footage and handover docs the client can actually use. Recent work: BLE triggered hardware prototype delivered ahead of schedule with same day milestone approval, and a LoRa ski tracking device on Heltec hardware