Cheonsol Lee
AI Research Engineer at Hana Institute of Technology (하나금융융합기술원)
Seoul, South Korea
Summary
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Senior🎓
Top SchoolCheonsol Lee is an AI research engineer based in Seoul with 9 years of experience specializing in NLP, LLMs, recommender systems and knowledge-graph powered RAG applications. He has driven production improvements at enterprise scale — notably boosting a bank chatbot’s accuracy by 5% and reducing training time while delivering LLM features for home shopping at KT. A high-achieving KAIST master’s graduate (Songhyun Award) with top-tier CS grades, he bridges rigorous research and practical productization, from corporate loan report drafting to stock-recommendation GraphRAG prototypes. Cheonsol is an active learner who combines hands-on engineering with continual study and community labs, favoring pragmatic AI platforms that turn cutting-edge models into usable services.
9 years of coding experience
3 years of employment as a software developer
Ansan dongsan high schoolB.S., Computer Science, 4.47/4.5 (전공: 4.49/4.5), B.S., Computer Science, 4.47/4.5 (전공: 4.49/4.5) at Chungbuk National UniversityMaster's degree, Knowledge Service Engineering, 4.06/4.3 (Songhyun Award), Master's degree, Knowledge Service Engineering, 4.06/4.3 (Songhyun Award) at Korea Advanced Institute of Science and Technology
Stackoverflow
1reputation
0reached
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Github Skills (7)
smartphone4
abc4
logger3
wearable-sensors3
stochastic1
python1
intervention1
Programming languages (4)
Github contributions (5)
keejun-han/NLP_GNN_STUDY
May 2021 - Mar 2022
Contributions:76 commits, 72 pushes in 10 months
cheonsol-lee/cheonsol-lee.github.io
May 2019 - Jun 2022
Contributions:71 pushes, 2 branches in 3 years 1 month
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