Yong Ki Lee

AI service developer at SK Telecom

I turn complex data into actionable insights through LLM integrations and optimized data pipelines.

  • Build full-stack services and analyze data to solve business problems, from concept to scalable production.
  • Choose technology for user value, operational efficiency, and practical impact.

Career

2023 — present

SK Telecom

AI Service Developer

  • Service planning, backend architecture, and development for Marketing AX Workspace.
  • Service planning, backend architecture, and development for Polaris Studio.
  • AI and backend engineering for SmartBee, a RAG chatbot service with an embeddable widget.
  • Backend engineering for customer conversation search (상담 검색 서비스).

Sep 2023 — present

Marketing AX Workspace

A conversational workspace for accessing business data and services through natural-language requests.

Polaris Studio

A no-code AI workflow service for working with internal data and automating repetitive tasks.

SmartBee

A RAG chatbot service with an embeddable widget that lets teams add document-based Q&A to existing websites.

상담 검색 서비스 (Customer conversation insights)

Backend engineering for SK Telecom’s AI-based customer conversation search service.

2020 — 2023

빌리뷰

Co-founder & CTO

  • Review topic classification and REVIEWRO backend development.

Sep 2020 — Apr 2023

REVIEWRO

Backend development for REVIEWRO, a review-based fashion commerce app. The service closed in February 2023.

Review topic analytics

Review topic classification for e-commerce at 빌리뷰.

2016 — 2020

SK Telecom

Data Scientist → Backend Developer

  • Data science for personalized targeting and network quality.
  • Backend development for personalized targeting and AIAS.

Apr 2016 — Aug 2020

AIAS: network quality analytics

Backend development for AIAS, a map-based telecom network quality service.

Personalized targeting

Data modeling and backend development for personalized targeting at SK Telecom.

2014 — 2016

Hyundai Motor Company

Data Scientist

  • Vehicle sensor-data engineering and diagnostic trouble-code analysis.

Dec 2014 — Mar 2016

2010 — 2014

LG Electronics

Software Engineer · Smart TV Lab

  • Smart TV search services and electronic program guide data processing.

Mar 2010 — Nov 2014

2009 — 2010

Tmaxsoft

Software Engineer · WAS Lab

  • Servlet/JSP engine development and class-loading work for JEUS.

Jan 2009 — Mar 2010

Research & Education

2003 — 2007

B.S. in Industrial Engineering

Seoul National University

2011

Online Video Recommendation Through Tag-Cloud Aggregation

Jonghun Park, Sang-Jin Lee, Sung-Jun Lee, Kwanho Kim, Beom-Suk Chung, and Yong-Ki Lee

IEEE MultiMedia · Volume 18, Issue 1

BibTeX
@article{park2011tagcloud,
  title={Online Video Recommendation Through Tag-Cloud Aggregation},
  author={Park, Jonghun and Lee, Sang-Jin and Lee, Sung-Jun and Kim, Kwanho and Chung, Beom-Suk and Lee, Yong-Ki},
  journal={IEEE MultiMedia},
  volume={18}, number={1}, year={2011},
  doi={10.1109/MMUL.2010.6}
}
2009

Tag-based Object Similarity Computation Using Term Space Dimension Reduction

Yong Ki Lee, Sung Jun Lee, and Jonghun Park

SIGIR ’09 · 32nd Annual ACM SIGIR Conference

BibTeX
@inproceedings{lee2009tagbased,
  title={Tag-based Object Similarity Computation Using Term Space Dimension Reduction},
  author={Lee, Yong Ki and Lee, Sung Jun and Park, Jonghun},
  booktitle={Proceedings of the 32nd Annual ACM SIGIR Conference},
  year={2009}, doi={10.1145/1571941.1572130}
}

Talks

Stack

Data foundations

PythonSpark / PySparkAirflowHadoop / HiveSQL

Intelligence & retrieval

Elasticsearchscikit-learnNLPANN search

Product & service APIs

FastAPINestJSSpring BootTypeScriptJavaMongoDB

Cloud & reliability

KubernetesDockerGCPAWSAzurePrometheusGrafana