Senior Back-end Engineer

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Senior Back-end Engineer in Others new

Coupang
Full time
Email

Others
10/01/2026
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Seoul, Korea

Responsibilities

Design workload and service-management infrastructure.
Develop core infrastructure components hands-on.
Build scalable systems and services with high-quality architecture and design.
Analyze serious system issues deeply and proactively resolve recurring root causes.
Provide mechanisms that help the team simplify complex problems, prioritize decisively, and move with urgency.
Collaborate with Coupang’s technical leaders to improve service scalability and create innovation opportunities.
Lead the team responsible for implementing the developer platform.

Requirements

Bachelor’s degree in computer science or a related technical field.
Practical experience designing and developing large-scale distributed systems within the last three years.
Proficiency in at least one of Golang, C/C++, Python, or Java.
Successful experience delivering mission-critical systems.
Experience using cloud computing platforms such as AWS, Azure, or GCP.
Preferred experience with Kubernetes, Go, and AWS.
Preferred experience with JSON, YAML, Jsonnet, and gRPC.
Preferred deep understanding of operating-system kernels and distributed systems such as Kafka, Cassandra, and Google Spanner.
Experience with concurrency, multithreading, synchronization, and non-blocking I/O is preferred.
Ability to manage competing priorities and lead large-scale service releases in a rapidly changing environment.
Fluent or effective English communication skills are preferred.
A master’s or doctoral degree in computer science or another related technical field is preferred.

Benefits

Regular full-time employment with a 12-week probationary period; the probation period may be waived, shortened, or extended when necessary.
The hiring process consists of application review, first interview, second interview, and final selection.
Recruitment may close early once the position is filled.

Coupang

Coupang is a technology and Fortune 150 company listed on the New York Stock Exchange (NYSE: CPNG) that provides retail, restaurant delivery, video streaming, and fintech services to customers around the world under brands that include Coupang, Eats, Play, Rocket Now, and Farfetch.

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