Staff AI Engineer, Voice Agents

Sage Care is a fast-growing healthcare startup transforming care navigation through AI innovations. They are seeking a Staff AI Engineer to lead the design and evolution of AI agents, focusing on building reliable voice systems and improving overall system performance.

Responsibilities:

• Design and own AI agent architecture (orchestration, tool use, control flow)
• Build systems that enable agents to operate reliably across real-world interactions
• Develop and improve evaluation frameworks for agent quality and behavior
• Debug and resolve complex issues in production (edge cases, failures, regressions)
• Optimize performance across the stack (latency, cost, reliability)
• Define patterns and best practices for building and operating AI agents
• Mentor engineers and raise the bar on AI systems design and execution