3Commas.io

AI Engineer

• Own the agent architecture end to end, including orchestration, tool loops, context management, sandboxes, model routing, and production quality, cost, and latency trade-offs
• Own contracts between the engine and product, including frontend rendering of agent events
• Build and own offline evaluations, backtest-based quality metrics, and regression detection for prompt or model changes
• Apply statistical rigor to strategy evaluation, including overfitting detection, robustness checks, and walk-forward and out-of-sample validation
• Build data foundations with provenance, validation, and a consistent model of market entities
• Improve observability to diagnose non-deterministic production failures
• Refine requirements with product and set technical direction through RFCs and ADRs
• Mentor engineers moving into LLM systems
• Participate in on-call rotation, act as first responder for production incidents, and follow the incident response process