nautilus_trader

Overview

NautilusTrader is an open-source, Rust-native engine for building multi-asset, multi-venue trading systems. It brings research, deterministic simulation, and live execution into one event-driven architecture, helping teams use the same strategy and execution-algorithm code across backtests and live systems. Python is used to define strategy logic, configuration, and orchestration, while Rust provides the compiled engine; systems can also be written entirely in Rust for mission-critical workloads.

Key features

• Supports research, deterministic simulation, and live execution in one architecture.
• Uses an event-driven design for multi-asset, multi-venue trading systems.
• Lets strategies and execution algorithms run across backtests and live systems.
• Uses Python for strategy logic and orchestration, with the option to write systems entirely in Rust.

Best for

Useful for developers building trading systems who want to carry strategy and execution code from simulation into live use. Python supports strategy development and orchestration, while Rust is available for mission-critical workloads.