Senior Back End Engineer (Global Mobility & Business Travel)
Core
Design and own Coupang's Global Mobility data infrastructure from the ground up to support relocating international employees through immigration, housing, onboarding, and family integration.
Role type
Senior IC backend/data engineer (AWS data lake & ETL)
Builds
AWS Data Lake architecture, unified ETL pipelines, multi-country data routing engines, and operational BI/automation tools for HR operations.
Domain
E-commerce / HR Technology / Data Engineering
Deliverable
production ML models | product features | dashboards & analysis | infrastructure
Required skills
System architecture design, Python or Java, AWS infrastructure (EC2, RDS, S3, Lambda, Glue), database design, ETL/ELT pipeline orchestration (Airflow, Temporal), dynamic schema design, data validation, pipeline observability.
Preferred skills
Handling sensitive PII and compliance standards, multi-region system deployments, greenfield project delivery, asynchronous non-English technical communication.
Technologies
AWS (EC2, RDS, S3, Lambda, Glue), Airflow, Temporal, Python, Java
Responsibilities
Design greenfield AWS Data Lake architecture and schema models; Consolidate disparate source system ETL pipelines; Build multi-country logic and data routing engines; Power operational BI, analytical reporting, and process automation; Design data quality frameworks, validation rules, monitoring, and automated alerting; Own technical execution, infrastructure provisioning, tooling selection, ADRs, and operational runbooks.
Seniority
Senior, hands-on IC
