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Coupang Fulfillment Services Logo

Senior Staff Backend Engineer

Coupang Fulfillment Services

$159,000 - $324,000
Dec 10, 2025
Seattle, WA, US
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Coupang is looking to solve the problem of reliably fulfilling customer orders in Fulfillment Centers within hours of order placement by building an efficient ecosystem that operates at breakthrough scale and speed.

Requirements

  • 6 years of experience working directly within engineering teams in a fast-moving environment.
  • 6 years of experience in developing and operating backend services and web applications.
  • Experience building complex, high-performance, and highly available distributed software systems that have been successfully delivered to customers.
  • Strong familiarity developing with Java and Spring Framework as well as experience in an AWS environment.
  • Extensive experience in managing mission critical services with high throughput and low latency.
  • Exposure to one of the SQL or NoSQL database systems. (Cassandra, MySQL etc.)
  • Knowledge of Agile software engineering practices & patterns for the full software development lifecycle including coding standards, code reviews, build processes, testing, and live site operations.

Responsibilities

  • Demonstrate excellence resulting in scalable systems and services with the highest quality architecture and design.
  • Responsible for designing, building, deploying and maintaining the core Workflow Platform Infrastructure. (e.g., Workflow Platforms - Temporal, Netflix Conductor etc.)
  • Responsible for benchmarking the Platform, collecting metrics & publishing results.
  • Responsible for measuring & ensuring reliability and uptime of the Platform with 99.995% guarantees.
  • Responsible for capacity estimation & provisioning of cluster for different customer workloads.
  • Responsible for production incident Monitoring & Alerting for the Platform.
  • Detail oriented and hands on engineer who can analyze OSS Platform components and code.

Other

  • BS in Computer Science, EE, or other engineering fields. MS preferred.
  • Bachelor, Master or PhD degree in Computer Science, Electronic Engineering, Industrial Engineering, or related discipline with 5+ years of experience with large scale backend distributed systems.
  • Excellent communication skills to shepherd communication with end users, technical & business teams to collect requirements, describe product features, and develop technical designs to achieve business goals.
  • Solid engineering skills as a lead engineer to coach and lead high performing software engineers and keep them motivated.
  • Demonstrated leadership in cross-functional, highly collaborative environment.