Coupang

Senior Staff / Staff Backend Engineer (Security Infrastructure)

Coupang
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13 hours ago
Singapore, SingaporeStaff+

Responsibilities

  • Develop customer authentication and authorization platforms and iterate rapidly with a highly capable engineering team.
  • Partner with teams across Coupang to understand current needs and future direction.
  • Design and implement robust, scalable distributed systems and critical infrastructure components.
  • Write backend APIs in Java and Go using industry-standard frameworks.
  • Drive platform adoption and help internal teams prioritize integration work.
  • Investigate critical system issues and improve operational excellence.
  • Serve as a technical role model and help shape team culture.

Requirements

  • Bachelor’s degree in computer science or a related technical field.
  • 8+ years of professional software development experience, or 6 years with an advanced degree.
  • 2+ years of experience leading technical projects.
  • Fluency in one or more of C++, Java, and Go.
  • Recent hands-on experience designing and developing large-scale distributed systems.
  • A proven track record delivering mission-critical systems.
  • Experience with cloud computing using AWS, Azure, or GCP.
  • Deep understanding of cloud application design and architecture, API design patterns, performance, and scale.
  • Preferred: master’s or PhD in computer science or a related technical field.
  • Preferred: working knowledge of OIDC, OAuth2, IAM systems, identity providers, and role-based authorization.
  • Preferred: experience with Kubernetes, gRPC, Istio, high-reliability and low-latency cloud systems, CI/CD pipelines, and Infrastructure as Code.
  • Preferred: experience leading delivery of large-scale services while managing competing priorities.

Benefits

  • The role is open to Singapore citizens and permanent residents only.
  • The recruitment process includes application review, phone interview, and onsite or virtual onsite interview, though the process may vary.
Coupang

About Coupang

5,001-10,000 employees

Coupang builds and operates a South Korea–focused e-commerce marketplace with an end-to-end logistics network (Rocket Delivery), plus food delivery, video streaming, and fintech under brands such as Coupang, Eats, and Play. Revenue comes from first-party retail, third-party marketplace services, advertising, and memberships (Rocket WOW). Founded in 2010, the company is headquartered in Seattle and is publicly listed on the NYSE (CPNG).

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