Staff Backend Engineer(Infrastructure)
Core
Design and implement a next-generation durable execution platform enabling long-running, reliable workflows for hundreds of domain teams, supporting critical infrastructure like rocket delivery service.
Role type
Staff Backend Engineer (Infrastructure)
Builds
A highly scalable, fault-tolerant workflow execution platform for Coupang's e-commerce ecosystem.
Domain
E-commerce / Distributed Systems / Cloud Infrastructure
Deliverable
production ML models | infrastructure
Required skills
Java, Spring Framework, AWS, distributed systems design, high availability engineering, system architecture, predictive scaling, automated bottleneck detection, intelligent error recovery, distributed locking, deterministic execution, Kubernetes, containerization, Cassandra, TiDB, distributed tracing, telemetry.
Preferred skills
12+ years backend infrastructure experience, 5-6 nines availability mastery, Temporal or Cadence programming models, AI/ML integration for system automation, Python (concurrency/memory management), observability.
Technologies
Java, Spring, AWS, Kubernetes, Cassandra, TiDB, Python, Temporal, Cadence
Responsibilities
Design for 5-6 nines availability and handle tail latencies in distributed state management; Integrate AI/ML models for predictive scaling, bottleneck detection, and error recovery; Solve hard problems in distributed locking, timers, and deterministic execution; Validate architectural decisions against massive traffic patterns; Work cross-functionally with product teams to provide infrastructure.
Seniority
Staff, hands-on IC with architectural leadership