As an independent contractor, I reverse-engineered an undocumented solar charge controller/inverter PCB from board photos, without a schematic or datasheet. I wrote 4-bit LCD driver firmware in C for a PIC16F73 using MPLAB X and XC8.
For a client's low-latency trading system, I debugged an ExaNIC/ExaSock kernel-bypass TCP driver and built a standalone raw-socket demo in C++ to isolate and validate the fix.
I also automated a client's NIFTY weekly options strategy in an async Python signal engine. I fixed signal repainting on unclosed candles and added resilient broker-session handling with multi-channel alerting.
In my fem-mesh-viewer project, I wrote a Node.js parser for LS-DYNA keyword-deck files and used Three.js to render the resulting geometry in a browser. I also documented a reproducible Linux raw-socket demo and created a sanitized rebuild of a client trading-signal engine.
