Principal Software Engineer: AI Platform & Impact Leader

Flagship Pioneering's FL105 seeks an experienced Principal/Senior Software Engineer to lead the design and development of customer‐facing features across the full stack. You will collaborate with product managers, designers, and ML researchers to translate customer needs into high‐impact solutions. You'll own features through the full lifecycle, implement CI/CD and security best practices, and leverage AWS to build scalable, AI‐powered services in a fast‐paced, entrepreneurial environment in