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Coupang Fulfillment Services Logo

Sr. Staff Backend Engineer (Ads Tech)

Coupang Fulfillment Services

$159,000 - $351,000
Nov 11, 2025
Seattle, WA, US
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Coupang Ads Group is looking to design and develop its advertising platform to support the company's fast business growth by building the next generation of products and services to fuel future growth through self-service advertising capabilities for Sellers and Suppliers.

Requirements

  • Proficiency in Java and the Spring Framework
  • Experience working in cloud environments, particularly AWS
  • Demonstrated experience in building and maintaining highly available, distributed systems
  • Experience in designing and constructing machine learning-based applications and systems.
  • Experience in designing and constructing systems and applications for advertising/search advertising, search, and recommendations.
  • Experience in leading cross-team system design and execution.

Responsibilities

  • Identify opportunities to initiate technical investments and drive milestones within the Ads Serving Platform.
  • Design and construct robust, scalable, and efficient distributed ad systems.
  • Execute and deliver impactful system solutions that benefit multiple teams in Ads.
  • Drive and manage multiple impactful initiatives and projects concurrently.
  • Mentor and provide guidance to fellow team members.
  • developing low latency, highly available, large-scale services and systems
  • building APIs for programmatic integrations

Other

  • 8 years of experience in backend software development
  • Bachelor's degree in computer science, Electrical Engineering, Math, or a closely related field