Software Engineering Manager @NAVER CLOVA

Jul 2020 - Present

Machine Learning Data Platform

• …
• …

Senior Software Engineer @Coupang

Korean version of Amazon.com; largest e-commerce, logistics company

Jul 2018 - Mar 2020  📍Seoul, South Korea

Data Engineering

• Kafka log persistence
• Kafka schema registry
• Handling extract, transform, load (ETL) tasks with Spark

Inter-domain logistics state management system (Flow)

• Handling write-heavy workloads with Cassandra
• Message ordering guarantee with a distributed queue
• RESTful API for internal customers (domain teams)
• Spark jobs for data validation, written in Scala, fully automated with Airflow

Internal Tools & Extracurricular Activities

• awsauth: Command line tool written in Golang to issue temporary AWS access keys with AD FS and AWS STS