Senior Staff Back-end Engineer (eCommerce Engineering)
Core
Lead technical strategy and architecture for Coupang's core e-commerce backend platform (Auth, Search, Checkout, Orders) serving global markets.
Role type
Senior Staff IC Backend Engineer (Platform Architecture)
Builds
Global e-commerce platform infrastructure and services for mobile and web
Domain
E-commerce, Distributed Systems, Cloud Infrastructure
Deliverable
production ML models | product features | infrastructure
Required skills
Java/Kotlin/Spring, AWS, Kubernetes, Microservices Architecture, System Design, SLO Management, Incident Management, Mentoring, API Governance, Privacy Compliance
Preferred skills
AuthN/AuthZ Infrastructure, Global Multi-region Distributed Systems, Kafka/Spark/Cassandra/Airflow, Observability (OpenTelemetry/Prometheus/Grafana), JVM Tuning, SDK/Framework Design
Technologies
Java, Kotlin, Spring, AWS, Kubernetes, Kafka, Spark, Cassandra, Airflow, OpenTelemetry, Prometheus, Grafana
Responsibilities
Define 12-18 month platform strategy and RFCs; Architect privacy-compliant multi-region systems; Oversee backward-compatible system design and migrations; Set SLOs and lead incident management; Drive cost optimization and compliance; Perform high-impact code reviews; Mentor Senior and Staff engineers.
Seniority
Senior Staff, hands-on IC with strategic leadership