Profile
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“I hope that through what I have, I can provide a better life and experience for others.”
- I provide technology-based direction and strive to objectively identify and maximize the resources of people, teams, and companies.
- I act for others/team optimization rather than myself, and find great pleasure in things that would otherwise be automated/efficient.
- Email | 94hanmil@gmail.com
- Blog | HM_dev (hmdev.vercel.app)
- Github | https://github.com/hanmilLee
- LinkedIn | hanmil Lee | LinkedIn
Education
- Bachelor's degree, System Management Engineering · (2013.03 - 2019.02)
- Bachelor's degree, Mechanical Engineering · (2013.03 - 2019.02)
Industry experience
Samsung Eletcronics semiconductor, South Korea
- Development of Batch Data pipeline about Semiconductor Equipment data (12TB per day) Data based on airflow, spark
- Development of Streaming Data pipeline about Semiconductor yield data Data based on OGG CDC, Kafka, spark structure streaming, iceberg
- Development of Data Governance platform based on Datahub, airflow, on-promise k8s, CI/CD based on Github Actions/argoCD
- Development of Data Lineage web service based on dash, airflow, CI/CD based on Jenkins
- MIS DataWarehouse to DataLake project architecting (Greenplumn database → HDFS)
- MIS Data pipeline refactoring, based on Apache Nifi, RabbitMQ, impala, HDFS
- Detecting semiconductor wafer overlay distortion based on kubeflow, LightGBM
- Semiconductor MIS data (ERP, SCM, etc.) ETL development based on datastage, Vsphere
- DB logical model design and data mart(Greenplum Database) development
- MSTR-based executive dashboard development
Samsung Electronics Semiconductor Management DW, BI, KPI Dashboard Project management (6 billion annually, 15-30 team members)
- Datastage based Semiconductor MIS data (ERP, SCM, etc.) ETL development/operation team
- MSTR/Longview-based executive dashboard development/operation team
- DB logical model design and data mart(Greenplum Database) development/operation team
- VMware Vsphere-based VM Development/operation team
- Develop user usage Dashboard based on MSTR
- Logging data pipeline ETL, base on Datastage, Greenplum Database
Team projects
LAMBDA [iOS Link, Android Link]
- Lambda is an app that helps individual investors manage their portfolios.
- Tracking portfolio profit / loss& recommend ticker based on ETF relation, sharing portfolio
- About 1000 user accountsportfolio registration
- Use Flutter, Firebase, GoogleApp engine
- Role: Development application, finance crawler, app design base on sketch, marketing & promotion
Certifications & external experience
RHCSA Rapid Track (RH199) - Red Hat
Issued Dec 2022
Seoul National University & Samsung Electronics DS Data Science Innovation Expert Course (2022.01~2022.06)
Issued Jun 2022 · No Expiration Date
Samsung S/W Certification - ProfessionalSamsung S/W Certification - Professional
Issued Sep 2022 · No Expiration Date
Oral Proficiency Interview - computer (OPIc) IH
Issued Oct 2019 · Expired Oct 2021
TOEIC speaking - Score 130, LEVEL6 - ETS
Issued Mar 2018 · Expired Mar 2020
Undergraduate Intern, System Control and Optimization (Scheduling) Laboratory, Sungkyunkwan University
(2018.03~2018.06)
Undergraduate Intern, Business Analytics & Optimization Lab, Sungkyunkwan University (2017.09~2017.12)
Skills
4 - 5 : Technologies I've used a lot and am confident in
3 : Skills that can be applied to any project to some degree
1 - 2 : Entry-level technologies I'm currently interested in