Lead Engineer, Fulfillment Platforms

About the Team

Stitch Fix’s Fulfillment Platform group is a multidisciplinary team of Software Engineers, Operations Researchers and Data Scientists that owns the technology powering every step of a product’s journey - from a vendor’s dock, through our fulfillment centers, onto a client’s doorstep and back again. 

Our systems drive the movement, accuracy, and efficiency of inventory flow across our network, inside our warehouses, and through our delivery channels. We own and operate the platforms that enable:

• SLA-driven order-fulfillment workflows that optimize throughput, labor efficiency, storage utilization, pick paths, and real-time inventory accuracy. 
• Inventory validation on receipt and pre-shipment to protect data integrity and client trust.
• Forecasting inbound merchandise arrivals using vendor Advance Shipment Notices (ASNs) and carrier scan data.
• Intelligent carrier selection that balances speed, cost and delivery promise.
• End-to-end shipment tracking for clients and internal stakeholders.
• Carrier integrations and label generation across all package types.
• Data-driven decisions for allocations, inter-warehouse transfers, zone-skipping, and more.

The scale, complexity, and immediacy of these decisions create a deeply data-rich environment that rewards both rigor and creativity. We value a curiosity-driven culture where engineers independently own products end-to-end, navigate complex tradeoffs, and deliver measurable business impact.

About the Role

As a Lead Engineer on the Fulfillment Platforms Team, you will help to set the technical direction for the systems that orchestrate Stitch Fix’s warehouse and transportation networks. You will own problem spaces from initial discovery through delivery, translate business and operational needs into technical solutions, and lead execution across ambiguous, cross-functional initiatives.

This role requires deep domain fluency, strong communication and negotiation skills, and the ability to independently drive outcomes while influencing partners across Engineering, Operations, Data Science and Product.

Your work will directly impact fulfillment efficiency, delivery reliability, inventory unlock, and margin performance.

In this role, you will:

• Own and evolve critical fulfillment and shipping systems, including multi-carrier rate shopping, label generation, tracking ingestion, and returns workflows.
• Design and operate fault-tolerant, event-driven services that reconcile hundreds of thousands of carrier events daily and surface real-time shipment status to downstream systems.
• Drive discovery with business and operations partners to identify high-impact problems, evaluate tradeoffs, and define clear technical roadmaps.
• Independently lead initiatives from concept through production rollout, including design, execution, and measurement of outcomes.
• Ensure comprehensive visibility into warehouse operations and accurate ingestion of inbound merchandise.
• Mentor engineers through code reviews, architecture discussions,and feedback, raising technical standards and ownership expectations.
• Instrument, monitor, and tune systems for reliability, latency, and cost efficiency.
• Work collaboratively with cross-functional partners to align technical and operational needs.

You're excited about this opportunity because you will…

• Own complex, high