Architect production AI systems using Sonnet-3.5, GPT-4o, and others. Design and implement robust prompt management in Braintrust. Develop comprehensive evaluation frameworks for AI quality in Braintrust. Lead AI infrastructure decisions and vendor selections. Establish best practices for prompt engineering and versioning. Build agent orchestration and monitoring systems. Set technical direction for AI capabilities. Mentor team members on AI engineering practices. Drive continuous improvement through data-driven evaluation.