Principal Software Engineer - Autonomous AI Platform Architect

Flagship Pioneering's Pioneering Intelligence group is building an autonomous research platform that combines agentic AI with scientific reasoning to accelerate discovery and decision-making. This hands-on architect role focuses on the durable orchestration layer that runs multi-agent, multi-stage workflows at scale. The successful candidate will set technical foundations, collaborate with AI scientists and product teams, and translate frontier agent patterns into dependable infrastructure that