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-impact systems end to end in a mission-critical domain.
• Partner closely with engineers, operations leaders, and data scientists to deliver practical, scalable solutions.
• Lead initiatives in a high-uptime, high-volume environment where decisions materially affect cost and client experience.
• Independently identify gaps, shape problem statements and drive solutions that unlock new business value.Prioritize and sequence work to maximize impact across multiple stakeholders and initiatives. 
• Apply systems thinking and sound judgment when balancing reliability, scalability, speed and cost.
• Operate in a space rich with opportunity, autonomy and meaningful technical challenges.

We’re excited about you because…

• You have at least 5+ years of software engineering experience with demonstrated impact in complex domains.
• You bring strong domain expertise in fulfillment, logistics, e-commerce or similarly operationally intensive environments. 
• You have designed and operated large-scale, distributed systems in production.
• You have fluency in at least one modern programming language (e.g., Go, Java, Ruby, Python, or similar) and a willingness to work across languages.
• You have a proven track record of independently driving initiatives through ambiguity, from discovery to delivery. 
• You communicate clearly and effectively, translating between technical detail and business outcomes for diverse audiences.
• You are skilled at navigating cross-functional dynamics and negotiating tradeoffs to move work forward.
• You have proven experience with relational databases (e.g., Postgres, MySQL) and quickly ramp on new technologies.
• You have built and operated services on a major cloud platform (AWS, GCP, Azure) and are proficient with observability tools (e.g. Datadog). 
• You have practical knowledge of optimization, forecasting, or decision-science techniques, and the humility to partner with specialists when needed.
• You value automated testing, continuous delivery, and observability as core pillars of quality.

Why you'll love working at Stitch Fix...

• We are a group of bright, kind people who are motivated by challenge. We value integrity, innovation and trust. You’ll bring these characteristics to life in everything you do at Stitch Fix.
• We cultivate a community of diverse perspectives— all voices are heard and valued.
• We are an innovative company and leverage our strengths in fashion and tech to disrupt the future of retail. 
• We win as a team, commit to our work, and celebrate grit together because we value strong relationships.
• We boldly create the future while keeping equity and sustainability at the center of all that we do. 
• We are the owners of our work and are energized by solving problems through a growth mindset lens. We think broadly and creatively through every situation to create meaningful impact.
• We offer comprehensive compensation packages and inclusive health and wellness benefits.