Amazon's Fulfillment Technologies (AFT) is seeking a Software Development Engineer to join their Sortation Material Flow team. This role is crucial in developing systems that power Amazon's global fulfillment network, one of the largest and most complex operations worldwide. The position involves building sophisticated algorithms for real-time decision making and state prediction of downstream systems, while managing sorters and workcells that handle hundreds of thousands of concurrent transactions. As part of this world-class engineering team, you'll work on distributed systems using AWS platform, solving challenging problems at scale. The role requires strong technical expertise in building reliable, scalable systems with minimal human intervention. You'll collaborate in a fast-paced environment, contributing to various projects that directly impact Amazon's fulfillment capabilities. The position offers comprehensive benefits including medical, dental, vision coverage, parental leave options, and RRSP plans. This is an excellent opportunity for engineers passionate about complex system software and building globally scalable solutions.