Global Payment Gateway (3/4): The Contended Ledger - Correctness Under Concurrency

Balance is a lie; the journal is the truth. Explore how to architect a high-throughput ledger that preserves financial correctness under extreme concurrency.

April 18, 2026 · 6 min · Hiep

Stock Exchange Core (2/4): The Single-Threaded Matching Engine

Why multi-threading kills High-Frequency Trading systems. We explore lock-free concurrency, Mechanical Sympathy, and the LMAX Disruptor pattern to achieve sub-microsecond matching.

February 20, 2026 · 7 min · Hiep