Jeongwoo Choi
Data Warehouse Engineer
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolJeongwoo Choi is a Data Warehouse Engineer with 8 years of experience building production-ready data platforms and pipelines, currently transforming Toss Securities’ DW using dbt, Airflow, and custom libraries in an Impala-based private network. He designs pragmatic data architectures and fact-dimension models that improve reusability and governance, and spearheaded a data lineage portal to democratize traceability for downstream consumers like Tableau. Prior roles span web3 data engineering at NFTBank.ai and ML-focused engineering at MakinaRocks, reflecting a blend of on-chain analytics, ETL, and machine learning production work. Jeongwoo is comfortable adapting open-source tools to constrained environments—turning dbt into a secure, testable deployment workflow—and prioritizes data-driven decision-making across business teams. Based in Seoul, he pairs an electrical engineering background from Seoul National University with hands-on system-building instincts forged through freelance and startup work.
8 years of coding experience
7 years of employment as a software developer
Bachelor of Science - BS, Electrical and Electronics Engineering, Bachelor of Science - BS, Electrical and Electronics Engineering at Seoul National University
English, Korean
Github Skills (46)
monitoring10
javascript10
visualization10
dashboard10
mysql10
typescript10
user-interface10
grafana10
analytics10
prometheus10
declarative10
elasticsearch10
data-visualization10
frontend10
react10
Programming languages (3)
Github contributions (5)
lucas0530/soul-landing-profile-page
Aug 2022 - Nov 2023
Contributions:1 release, 57 PRs, 47 pushes in 1 year 3 months
KZ-Lucas/freebsd-ports
Feb 2018 - Apr 2018
Contributions:20 commits, 17 pushes, 4 branches in 1 month
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