Software Engineer, Logistics Platform

Whatnot is the largest live shopping platform in North America and Europe to buy, sell, and discover the things you love. Shipping is one of the most operationally complex and business-critical parts of Whatnot. The Logistics Platform team builds the shared systems, data, and capabilities beneath shipping on Whatnot, including core logistics data, tracking and scan normalization, platform interfaces, and observability and investigation surfaces. We're looking for a Senior Software Engineer, Logistics Platform to help make those systems more trustworthy, operable, and easy to build on.

Responsibilities

Build and improve source-of-truth systems, APIs, and internal platform interfaces that other teams depend on for logistics workflows and decisions; Own backend and platform work across logistics data quality, shipment state normalization, observability, and operational debugging surfaces; Partner closely with Product, Data Science, CX, Ops, Trust, and Finance to turn messy real-world logistics problems into durable systems and better user outcomes; Improve the correctness, timeliness, and usability of the logistics data that powers support, trust, product, and operational workflows; Build tooling, monitoring, and debugging primitives that help teams detect problems earlier and get to truth faster; Use AI thoughtfully in day-to-day engineering work to improve quality, learning speed, debugging, and execution — while keeping a strong independent bar for correctness and risk judgment

Requirements

Experience building and owning meaningful backend or platform systems in production at the senior scope; Strong product judgment and the ability to connect technical work to user impact, business outcomes, and explicit trade-offs; Experience in complex marketplace, coordination, delivery, fulfillment, trust, or post-purchase systems; Strong instincts around data quality, source-of-truth systems, observability, and operational debugging; A thoughtful approach to AI; Comfort operating in fast-moving, high-ownership environments with ambiguity and shifting priorities

Nice to have

Experience in adjacent domains like rideshare coordination, food delivery, marketplace fulfillment, trust/risk operations, or order tracking and exception-handling systems; Experience working on a marketplace or other two-sided platform; Direct experience in logistics, shipping, or fulfillment systems

Benefits

Flexible Time off Policy and Company-wide Holidays (including a spring and winter break); Health Insurance options including Medical, Dental, Vision; Work From Home Support; Home office setup allowance; Monthly allowance for cell phone and internet; Care benefits; Monthly allowance for wellness; Annual allowance towards Childcare; Lifetime benefit for family planning, such as adoption or fertility expenses; Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally; Monthly allowance to dogfood the app; Parental Leave (16 weeks of paid parental leave + one month gradual return to work)