Daebok Choi Email & Phone Number

대한민국 서울

Kinesis, Managed service kafka, stream log applications

• Technical lead on DataScientist team
• Optimize Logistics planning
• Deploy ML pipeline for related product

• Application of MLOps based on kubernetes and mlflow to data science team
• Kubernetes & Airflow & mlflow based machine learning promotion-targeting system architecting
• Development of AB testing system based on Stratified sampling
• Development of user consumption regression model based on action log in app service (LSTM)
• Development of service sales forecasting model ensemble with fbprophet and LSTM
• Promotion personalization based on contextual bandit

• DBMS architecture refactoring, in legacy architecture based on AWS Redshift, RDS, Redis and S3, renewal to Redis, S3. $ 200 savings per day & 10% increase in response rate
• Logging data pipeline ETL, based on AWS Firehose, Kinesis, Lambda, Glue, Athena
• DSP Tracker & Bidder C# to python refactoring, based on AWS ECS, CI/CD based on Jenkins
• Async Redis bulk updated service architecting on AWS Lambda, SQS

Seoul, South Korea

• Researching user fatigue in mobile advertisement
• Develop Google Ad exchange abusing publisher-classifier
• Develop RFM feature based buying user classifier
• Estimating app revenue and download counting in Google Play Store app ranking
• CTR prediction model based Field-aware Factorization machine

대한민국 경기도 수원

Research - Spin/valley dependent physicsSpin and valley dependent photonics, electronics and optoelectronics in low-dimensional semiconductors for novel spintronic and valleytronic devices- 2D heterostructuresDeveloping new heterostructures based on graphene and other 2D materials in terms of fabrication, unprecedented functionalities, and novel material.

Bachelor'S Degree, Computer Science

Bachelor'S Degree, Physics