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Tier-1 brand, metro location, and broad backend skillset amplify applicant competition.
Requires deep backend, distributed systems, and fulfilment domain experience, limiting cross-industry transferability.
Staff-level role with strict technical, leadership, and mission-critical systems requirements.
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Design and build scalable, reliable Tier-1 services for real-time order planning, fulfilment optimization, inventory allocation, and network cost management processing every Coupang order in Korea and Taiwan.
Own architecture of distributed systems involving gRPC service meshes, Kafka event pipelines, CPLEX solvers, multi-layer caching, and multi-region deployments, ensuring sub-second solver latency and high operational reliability.
Lead technical direction, review code, drive reliability and resilience, and mentor engineers to raise standards and scale systems impacting millions of daily orders.
Proven experience designing and operating high-scale distributed systems with strict latency and reliability requirements.
Strong hands-on coding skills in Kotlin or Java for backend systems at scale.
Experience with event-driven architectures using Kafka at scale and multi-region system deployments.
Work Experience Required: Not explicitly mentioned in the JD.
Experienced technical leader with background in architecture direction and mentoring senior engineers in high QPS, Tier-1 SLA environments.
Strong system design expertise covering API design, concurrency, caching, messaging, and service-to-service communication (gRPC, REST).
Domain knowledge or experience in ecommerce, fulfilment, supply chain, logistics, inventory, or planning systems, and familiarity with optimization or solver technologies is a plus.