From bare metal to capital markets.

A C++ performance engineering microsite. Each post benchmarks a focused optimisation problem — cache effects, branch prediction, SIMD — with naive vs tuned implementations, real measurements, and D3 visualisations.

A C++20 price-time-priority matching engine with a live, interactive demo. The engine matches new/cancel/amend flow using fixed-point integer prices, packed order ids, and a pool/index data model over flat_map book sides — deterministic and single-threaded by design, the way a real venue matches a single instrument. A Crow server links it as a library and streams live order-book state over REST + WebSocket to a React trading-terminal UI, driven by a throttled, on-demand feeder; correctness is pinned by a differential oracle, a runtime invariant verifier, and adversarial load tests. Deployed on AWS Lightsail behind nginx.

WiFi-connected RGB LED strip controller built on the XIAO ESP32-S3 with custom PCB design, MOSFET drivers, MQTT/REST/WebSocket control, and Home Assistant auto-discovery.

Pre-trade transaction cost analysis tool for institutional equity execution. Implements the Almgren et al. (2005) market impact model with property-tested correctness, an interactive efficient-frontier visualiser, regime sensitivity analysis, and a synthetic calibration tab demonstrating the η/γ parameter estimation methodology. FastAPI backend, custom-styled HTML frontend, deployed standalone.

WiFi/MQTT-to-BLE bridge that lets Home Assistant control a Vent-Axia Svara fan via a one-shot boost command — no cloud subscription required.