The BIT HIT trading platform is comprised of two main core components: The CrossEngine and the TradingEngine. The CrossEngine strictly matches client orders based on price and time priority. The TradingEngine is responsible for managing a full set of risk checks on behalf of the client's trading account. These include costs, fees, PNL, computing, and more, in real-time. Like other high-frequency trading systems, both of our engines were written in C++. The promising and predictable performance of C++ makes it ideal for modern trading systems. Due to the highly volatile nature of cryptocurrencies, users need engines to react as quickly as possible. Overloading is simply unacceptable. Velocity is an essential necessity for traders as their most concerning challenge is the inability to trade during big market movements. Our BIT HIT engines are at least 10x faster compared to other competitors. Our engines are also highly customized. We have minimized 3rd party lib dependencies to keep the core simple and fast. On top of performance, seamless disaster recovery is another feature provided by our BIT HIT engines. We have developed our own recovery system that gives our users 99.99% high availability. Each engine runs with multiple hot and warm backups at the same time. In most cases, users will not even notice system maintenance periods or upgrades. Such seamless and fast recovery is critical for 24x7 exchanges.