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Staff Back-end Engineer (Security Service Engineering)
Internal-only staff-level, hands-on IC role on Coupang's Security Service Engineering team: design, build, and lead large-scale security platforms and distributed systems, drive architecture reviews and cross-team technical direction, and evaluate AI-based security tech. Core stack includes Java/Go/Python/C++ and AWS (IAM, logging, access control).
Staff Back-end Engineer (Security Service Engineering)
Hands-on staff-level engineer at Coupang (Seoul) who designs and builds large-scale security platforms and distributed systems, leads cross-team security engineering initiatives, drives architecture reviews, and mentors engineers. Core stack includes Java, Go, Python, or C++ with deep AWS experience (IAM, logging, access controls), plus exploration of AI-driven security solutions.
[Coupang Pay] Staff Back-end Engineer (Fintech Developer Platform)
Staff back-end engineer on Coupang Pay's fintech developer platform, designing and building platform services that support large-scale payment traffic, plus high-availability/DR architecture, CI/CD and DevOps tooling, and compliance with financial security regulations. Core stack: Python/Go/Java/Kotlin, Docker, Kubernetes, AWS, Prometheus/Grafana/Loki.
Senior Staff Cloud Backend Engineer
Senior backend/SRE engineer at Coupang who builds and runs the observability and telemetry platform for large-scale datacenter infrastructure — monitoring, logging, alerting, automation, and incident analysis. Core stack includes AWS, Prometheus, Grafana, ELK, Kubernetes, Docker, Terraform, and Python/Go/Bash scripting.
Senior Staff Cloud Backend Engineer
Senior engineer on Coupang's infrastructure team building and running a large-scale observability and telemetry platform for datacenter services — designing monitoring, logging, and alerting, automating provisioning, and driving SRE practices like root cause analysis and performance optimization, primarily on AWS with tools such as Prometheus, Grafana, Kubernetes, and Python/Go.
Staff Back-end Engineer
Internal transfer role for a Staff Back-end Engineer on Coupang's Rocket Growth 2P marketplace team in Seattle. The engineer designs, builds, and operates large-scale distributed back-end systems and microservices using languages like Go/Java/Python/C++/Rust, relational and NoSQL databases, cloud infrastructure, and Kubernetes.
Staff Back-end Engineer
Staff back-end engineer on Coupang's Rocket Growth 2P marketplace team in Seattle, designing and operating large-scale distributed microservices to improve platform scalability, reliability, and performance. Core stack: a modern back-end language (Go/Java/Python/C++/Rust), SQL and NoSQL stores, Kubernetes, cloud, and event-driven messaging.
Sr. Staff Back-end engineer [Promise Platform]
Sr. Staff Backend Engineer at Coupang on the Inventory & Promise Platform team, technically leading the rearchitecture of the platform that powers inventory visibility, promised delivery dates, and fulfillment orchestration for millions of shoppers. Core work spans large-scale distributed microservices and ML pipelines, with Java, Scala, Python, Kafka/Spark-Streaming, and AWS.
[Instant Commerce] Senior Staff Back-end Engineer
Senior back-end engineer leading the technical vision and execution for Coupang Eats, optimizing scalable systems for food delivery, merchant management, and delivery operations to enhance customer and partner experiences.
[Instant Commerce] Senior Staff Back-end Engineer
Senior back-end engineer leading technical strategy for Coupang Eats, designing scalable systems for food delivery, customer experience, and delivery optimization in a Java/AWS environment.
Senior Staff Back-end Engineer (Rocket Pay)
Senior Staff Backend Engineer at Coupang Pay in Seoul, defining the technical direction and architecture of Rocket Pay, a next-generation universal payment platform serving tens of millions of users. Day to day: designing and operating large-scale Java/Kotlin + Spring payment systems (wallet, authorization, settlement, reconciliation) and mentoring engineers.
Staff Back-end Engineer (Rocket Pay)
Staff backend engineer on Coupang Pay's Product Engineering team, owning the technical direction of core payment services like Coupay — designing and evolving reliable, high-traffic fintech systems including payment back-office, settlement, and reconciliation platforms. Core stack is Java/Kotlin with Spring.
[CFN] Staff Back-end Engineer (Lending Engineering)
Build and run the back-end lending platform that powers financial services in Coupang’s ecosystem, using Java/Kotlin and Spring to handle high-volume transactions and ensure data integrity.
Staff Back-end Engineer [L6-1] (Coupang Financial)
Internal-transfer-only posting for a Staff Back-end Engineer on Coupang Financial's Lending Engineering team in Seoul. Day to day: designing, building, and operating Java/Kotlin + Spring distributed backend systems for large-scale financial services, ensuring data consistency, stability, and fast delivery of new lending products.
Staff Backend Engineer
Designs and builds high-scale backend systems that plan, distribute, and fulfill every Coupang order in real time using Kotlin/Java, optimization solvers, and distributed event pipelines.
Staff Backend Engineer
Designs and builds high-scale backend systems that plan, distribute, and fulfill millions of e-commerce orders in real time using Kotlin/Java, optimization solvers, and distributed architectures.
Staff Backend Engineer
Staff backend engineer on Coupang's Rocket Growth 2P marketplace Supply Chain team in Bengaluru, serving as technical lead on inventory and promise systems. Day-to-day involves architecting high-scale Java microservices and ML pipelines, with Kafka, gRPC/REST, and mentoring other engineers in a hybrid (3 days/week office) model.
Staff Back-end Engineer (Rocket Pay)
Staff backend engineer on Coupang Pay's Rocket Pay team in Seoul, designing, building, and operating Coupang's core payment platform. Focus is on scalability, stability, security, and performance of payment, settlement, and reconciliation systems at large scale, using Java/Kotlin and Spring.
Staff, Back-end engineer
Staff back-end engineer on Coupang's Fulfillment Execution (FEX) team in Seattle, designing and operating large-scale distributed workflow orchestration platform services (Temporal, Netflix Conductor) built with Java/Spring on AWS to handle billions of order and delivery transactions with 99.995% uptime objectives.
Senior Staff Backend Engineer - Fraud Detection
Lead architecture and development of large-scale ML-powered fraud detection systems, building real-time data pipelines and model-serving infrastructure to protect Coupang’s e-commerce marketplace.