Junhee Cho
AI/ML Software Engineer, YouTube, Google
Work Experience
YouTube, Google
AI/ML Software Engineer
Sep. 2025 - present
San Bruno, CA
Give everyone a voice and show them the world.
- Trust and Safety: Keep YouTube safe & build trust across the ecosystem
- Traffic Abuse: Protect YouTube's ecosystem from inauthentic behaviors by adversarial actors.
Google Search, Google
Software Engineer
Sep. 2018 - Sep. 2025
Seoul, South Korea
Organize the world’s information and make it universally accessible and useful.
- Revamped Google Search on desktop and similar surfaces: large-screen tablet and Chrome Side Panel.
- Developed and maintained weather features in Google Search.
Republic of Korea Cyber Command
Software Engineer, Sergeant in Republic of Korea Army
Jul. 2013 - Apr. 2015
Seoul, South Korea
- Developed an endpoint security solution for Republic of Korea Armed Forces military networks.
- Designed and implemented the Windows clients in the solution.
- Received Republic of Korea Cyber Commander’s Award for the distinguished service.
Education
M.S. in Computer Science
Korea Advanced Institute of Science and Technology (KAIST)
Sep. 2016 - Aug. 2018
Daejeon, South Korea
"Computing Periods"
advised by Prof. Dr. Martin Ziegler
B.S. in Computer Science and in Mathematics
Korea Advanced Institute of Science and Technology (KAIST)
Feb. 2008 - Aug. 2016
Daejeon, South Korea
Undergraduate Research Internship in Programming Languages advised by
Prof. Sukyoung Ryu
Publications
Refereed Papers in International Conference Proceedings
- Soyoung Yoon, Sungjoon Park, Gyuwan Kim, Junhee Cho, Kihyo Park, Gyutae Kim, Minjoon Seo, and Alice Oh, "Towards standardizing Korean Grammatical Error Correction: Datasets and Annotation," Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) (ACL 2023), July 2023. doi:10.18653/v1/2023.acl-long.371
- Jiho Chang, Yoonsung Choi, Taegyoung Lee, and Junhee Cho, "Reducing MAC operation in convolutional neural network with sign prediction," 2018 International Conference on Information and Communication Technology Convergence (ICTC), October 2018. doi:10.1109/ICTC.2018.8539530
- Junhee Cho, Sewon Park, and Martin Ziegler, "Computing Periods...," In: M. Sohel Rahman, Wing-Kin Sung, and Ryuhei Uehara (eds) WALCOM: Algorithms and Computation - 12th International Conference, WALCOM 2018, Proceedings, vol. 10755 of Lecture Notes in Computer Science, Springer, March 2018. doi:10.1007/978-3-319-75172-6_12
- Junhee Cho and Martin Ziegler, "Computing Periods...," The 14th International Conference on Computability and Complexity in Analysis, July 2017.
- Junhee Cho and Sukyoung Ryu, "JavaScript Module System: Exploring the Design Space," Proceedings of the 13th International Conference on Modularity, April 2014. doi:10.1145/2577080.2577088
- Junhee Cho, "Rewriting JavaScript Module System," Proceedings of the 12th Annual International Conference Companion on Aspect-oriented Software Development, March 2013. ACM Student Research Competition (Undergraduate) 1st. doi:10.1145/2457392.2457412
- Hongki Lee, Sooncheol Won, Joonho Jin, Junhee Cho, Sukyoung Ryu, "SAFE: Formal Specification and Implementation of a Scalable Analysis Framework for ECMAScript," The 19th International Workshop on Foundations of Object-Oriented Languages, October 2012.
Technical Reports
- Junhee Cho and Sukyoung Ryu, "JavaScript Module System: Exploring the Design Space (Extended with Formalization)," Technical Report, KAIST, July 2013.
Honors and Awards
Republic of Korea Cyber Commander’s Commendation Award
Nov. 2014
For the distinguished service from Major General Sung Jik Cho in
Republic of Korea Army, Republic of Korea Cyber Commander.
Software Maestro
Jul. 2012 - Nov. 2012
An annual educational program on software engineering for 100
outstanding students by Ministry of Knowledge Economy, Republic of
Korea. My team developed a cloud service using OpenStack and Chef.
13th Place, The 35th Annual ACM-ICPC World Finals
27 May 2011
4th Place, The 2010 ACM-ICPC Asia Tokyo Regional Contest
12 Dec. 2010
1st Place, The 2010 ACM-ICPC Asia Daejeon Regional Contest
29 Oct. 2010
2nd Place, The 2009 ACM-ICPC Asia Seoul Regional Contest
5 Nov. 2009
Teaching Experience
Korea Advanced Institute of Science and Technology
Teaching Assistant
2012 - 2018
Daejeon, South Korea
- CS500: Design and Analysis of Algorithms (2018 Spring)
- CS330: Operating Systems and Laboratory (2016 Fall)
- CS320: Programming Languages (2012 Spring)
Adama Science and Technology University
Volunteering Lecturer
Jul. 2016 - Aug. 2016
Adama, Ethiopia
- Taught algorithms and problem solving to prepare for ACM-ICPC Africa Regional Contests.
- Invited by Dr. Kyung-Yong Chwa, Dean of School of Electrical Engineering and Computing.
- As a part of World Friends IT Volunteers supported by National Information Society Agency (NIA), Republic of Korea.
Daejeon Institute of Education Information
Part-time Lecturer
Jun. 2009 - Jul. 2010
Daejeon, South Korea
- Taught algorithms and problem solving to middle and high school students who represented Daejeon Metropolitan City at Korea Olympiad in Informatics (KOI).
Korea Game Science High School
Part-time Lecturer
Jan. 2010 - Jan. 2011
Wanju, South Korea
- Taught algorithms and problem solving to prepare for Korea Olympiad in Informatics (KOI).
Languages
- English
- Korean
- C++ readability
Marathon
Full (42.195 km = 26.2 miles)
- Personal Best: 3:29:43
- Completed 4 marathons
Half (21.0975 km = 13.1 miles)
- Personal Best: 1:38:25
10K
- Personal Best: 43:24