Electronics, cryptography & code. I'm 18, based in India — self-taught builder with a deep interest in hardware and crypto systems.
I don't just use crypto — I build the infrastructure behind it.
I'm Gaurav Sharma, 18, from Lucknow, India. I just finished Class 12 and will be joining college soon — but I've been learning and building independently for the past couple of years.
I got into crypto Twitter early and spent a lot of time learning about how these systems actually work — not just trading, but the underlying tech. That curiosity led me into cryptography, embedded systems, and eventually building my own hardware wallet from scratch.
I enjoy working across the full stack — writing C++ firmware for microcontrollers, Python scripts, and web interfaces. I like understanding how things work at a low level.
Right now I'm focused on building real projects, learning in public, and looking for opportunities to work with people doing interesting things in crypto and hardware.
A fully air-gapped hardware wallet on a $3 ESP32 chip with on-device transaction signing. Uses BIP32/BIP39 HD key derivation, AES-256 encrypted seed storage with a key bound to the chip's eFuse MAC — flash dumps are useless without the physical chip. WiFi and Bluetooth are permanently disabled at boot. Includes a web companion app via Chrome Web Serial API.
✓ Private keys never leave the device.
Internships, collaborations, interesting projects — I'm open to it. Drop me an email or reach out on X.