Rust execution · sub-second DEX trades
Trafkin needed an automated trading bot that could monitor Cardano DEX pools and execute strategies faster than a human could react — in a language that could be audited and trusted with wallet keys.
At Trafkin, I contributed to building an automated trading bot operating on the Cardano blockchain. The bot used Rust for high-performance execution, GraphQL for querying blockchain state, and the Blockfrost API for interacting with Cardano DEXes. The system monitored price movements, executed trades based on configurable strategies, and managed wallet interactions securely.
Memory safety and zero-cost abstractions matter when the process is holding private keys and making sub-second decisions on live liquidity.
Blockfrost covers the Cardano indexing surface; GraphQL lets each strategy fetch exactly the shape it needs — no over-fetching, no ad-hoc REST calls.
Trading logic lives in a separate module from the execution engine, so analysts can tune parameters without touching the low-level code.