Summary
John K is a seasoned 데이터 엔지니어 based in Seoul with 10 years of experience building and operating large-scale data pipelines and analytics platforms at LINE and LINE Plus. He has hands-on expertise with Spark, Hive, Presto, HBase, Elasticsearch, Kafka, Flink and real-time streaming architectures, and has built notebook and BI/reporting services using Springboot and Zeppelin. Comfortable across Java, Scala and Python, he also runs containerized data infrastructure on Kubernetes and automates observability with Prometheus/Grafana and CI/CD tooling. His background in security research early in his career informs a pragmatic focus on reliable, auditable data systems and abuse-resistant pipelines. Known for turning complex ETL and real-time requirements into production-grade services, he blends systems-level thinking with developer-centric tooling experience.
10 years of coding experience
8 years of employment as a software developer
Bachelor of Science, computer information & communication, 3.51 / 4.5, Bachelor of Science, computer information & communication, 3.51 / 4.5 at 홍익대학교
Korean, Japanese, English