Research Professor, Department of Industrial Engineering, UNIST (Oct. 2022 – )

• Research interests
  • Investigating the use of AI in finance and its potential applications, including the application of graph neural networks to various financial engineering problems such as recommendation systems and time series forecasting.
  • Examining the use of representation learning techniques, specifically graph neural networks, for analyzing tabular data in the financial industry.

PROFESSIONAL EXPERIENCE

Co-founder, R&D lead, Ludencity (Mar. 2021 – July. 2022)

• Co-founding and heading R&D for a personalized daily curation service in the fashion commerce platform, "Lemon Letter"
• Designing recommendation models for fashion items utilizing various machine learning methods for Lemon Letter, including a hybrid modeling approach combining a content-based model and a collaborative filtering model for senior customers.
• Building data collection and dashboard systems for Lemon Letter and analyzing user log data to uncover business insights and improve recommendation models.
• Creating an automatic sentence generator for generating descriptions of fashion items.

Senior Data Scientist, Spacewalk (Mar. 2020 – Mar. 2021)

• Leading machine learning projects for prediction of land and house price in Korea
  • Successfully deployed to Landbook service which provides information of properties and land developing scenarios.
• Developing AI solution for land utilization by using weighted ensemble method which is combined with machine learning and deep learning techniques

Chief Research Officer, Veranos Technologies (May. 2018 – Mar. 2020)

• Managing R&D for a personalized portfolio optimization engine utilizing advanced machine learning algorithms, such as Multi-stage Stochastic Goal Programming (MSGP) for goal-based investing (GBI).
• Partnering with National Pension Service (NPS), Samsung Asset Management, and Shinhan Bank for the management of personal pension funds.
• Supplying Veranos optimization engine to Samsung Asset Management (2018-2020)
• Delivering an invited presentation on “A Case Study on Enhancing Income Security via Financial Technologies: Fully Personalised GBI-Based Life-Time Financial planning Service for Every Korean Citizen by National Pension Service” at the Four-University Rotating Fintech Conference in Paris, France (2019)

Senior Engineer, Mechatronics R&D Center, Samsung Electronics (Dec. 2017 – May. 2018)

• Modeling & analyzing RF effects on semiconductor plasma etcher system
• Utilizing COMSOL and HFSS electromagnetic modeling codes

Post-Doctoral Researcher, Impurity and Edge Plasma Research Center, Department of Physics, KAIST (Feb. 2017 – Nov. 2017)