Senior Backend Engineer – International

🕒 June 9

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Whatnot

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2021

💼 Consulting

📦 Logistics

📣 Marketing

💰 $260M Series D on 2022-07

Consulting • Logistics • Marketing

Whatnot is a dynamic online marketplace platform that facilitates live shopping experiences. Users can buy, sell, and discover products they love, engaging in a community-driven environment through live shows. Whatnot ensures a secure shopping experience by vetting sellers and offering protection for unsatisfactory purchases. The company values privacy, providing consent management tools for their users to control cookie usage and personal data processing.

📋 Description

• Design and build highly scalable systems that support millions of transactions across multiple countries and regulatory environments • Develop operational tooling that enables efficient international marketplace operations • Partner with internal logistics, payments, and platform teams to build durable long-term infrastructure • Example projects include building VAT tooling and seller-facing tax infrastructure for EU and UK markets • Designing cross-border shipping and Delivered Duty Paid (DDP) experiences that enable international commerce • Building systems to support market-specific requirements including Right of Withdrawal, refund automation, and regulatory compliance

🎯 Requirements

• 5+ years of professional software engineering experience • Strong backend engineering experience in distributed systems or large-scale platforms • Experience designing, operating, and scaling reliable production services • Strong proficiency in one or more modern backend languages (e.g. Python, Go, Java, Kotlin) • Experience working with relational databases and event-driven architectures • Ability to drive projects independently from ambiguous problem statements to production launch • Excellent communication skills and ability to collaborate across engineering, product, operations, and business stakeholders • Preferred: Experience with payments, fintech, e-commerce, logistics, marketplace platforms, or compliance systems • Experience building operational platforms, workflow systems, or transaction processing infrastructure • Experience working in rapidly growing product organizations

🏖️ Benefits

• EOE