Principal Software Engineer, Amazon Shipping

About the role

You will build the optimization brain for Amazon's externalized logistics network — a system that couples first-mile route planning with middle-mile network optimization into a joint iterative loop, producing end-to-end recommendations that no single optimizer can reach alone.

What you'll do

• Also be responsible for architectural integrity and scalability of fulfillment systems by (1) identifying interface contracts with partner tech teams (2) making the…
• Architect the joint FM-MM optimization loop: state-passing contracts, convergence detection, parallel execution, and checkpoint/restart
• Drive cross-org alignment across 5+ organizations — securing stable interfaces and committed roadmap items
• Translate optimization outputs into actionable recommendations for Operations (node mapping, capacity), Commercial (shipper targets, geographies)
• Mentor a team of Applied Scientists and SDEs; set technical bar and build experimentation culture

What you need

• Product strategy
• PhD