Senior Backend Engineer

About The Position

Join Archive in our mission to change consumer shopping behavior for the better. If you think humans buy too much stuff and throw too much away, then this problem is for you. As the leading technology platform for branded resale, we now power circular businesses for 50+ brands globally including Lululemon, The North Face and New Balance. We are growing our team of highly motivated, forward-thinking individuals to help build the most delightful user experience for shopping used items, and the software to help brands make this a significant part of their business. If this mission speaks to you, come join us as we grow our share of the booming second hand market—projected to grow 3X faster than the overall global apparel market and to hit $350 Billion globally by 2028. As a Senior Backend Engineer on our Data Team you will design and build the data and backend integration systems that allow Archive to connect deeply into brand ecosystems (e-commerce, ERP, finance, logistics) and deliver reliable, high-quality data flows across our platform. You’ll work across backend engineering, data engineering, and customer integrations to ship solutions that directly impact the success of brand programs and the growth of the recommerce economy. This role is ideal for someone who enjoys solving ambiguous data challenges, collaborating with both technical and non-technical partners, and owning systems end-to-end in a fast-moving environment.

Requirements

5+ years of experience as a backend or platform engineer
Strong proficiency in Python and/or TypeScript
Deep understanding of relational databases and proficiency with SQL (PostgreSQL preferred)
Experience building and deploying backend services at scale, ideally within distributed systems
Comfortable working with a variety of data stores (relational, NoSQL, warehouse environments)
Experience with or interest in data orchestration tools
Skilled at breaking down ambiguous, messy, or unstructured data challenges into pragmatic, reliable solutions
Able to turn high-level goals into shippable code and iterate quickly in a fast-paced environment
Strong communication skills and excited about collaborating with cross-functional partners and, at times, customers

Nice To Haves

Experience with e-commerce, ERP, logistics, or marketplace integrations
Experience supporting customer-facing technical implementations

Responsibilities

Architect and build backend services that power Archive’s platform, including APIs, data pipelines, and integration systems
Design and maintain scalable data models that support both operational features and analytical reporting
Implement integrations with ERPs, e-commerce platforms, inventory management services, and financial systems
Work closely with implementation teams and external stakeholders to understand system requirements and convert them into robust, maintainable solutions
Develop monitoring, observability, and data validation workflows to ensure consistent data quality across a multi-tenant environment