Experience

1. Amazon(2022.12~)

Seattle, Washington, United States

Senior Applied Scientist (2025.06~present)

• Prime Video CASP team

Senior Applied Scientist (2025.03~2025.06)

• AWS AI Transcribe team

Applied Scientist (2022.12~2025.03)

• AWS AI Transcribe team

2. Computer Research Institute of Montreal (2021.06~2022.07)

Montreal, Quebec, Canada

Postdoctoral researcher

• Domain generalization for speaker verification systems

• Anti-spoofing for automatic speaker verification systems

• Unsupervised representation learning for speaker verification

• Spoken language identification system

3. Seoul National University (2021.03~2021.05)

Seoul, South Korea

Postdoctoral researcher

• Forensic speaker recognition system development

Education history

1. Seoul National University (2014~2021)

Seoul, South Korea

Master and Ph. D, Electrical and Electronics Engineering

• Teaching assistant for Speech Recognition Seminar in Samsung Electronics (2019)

• Technical Research Personnel in Dept. of Electrical and Computer Engineering (2017~2020)

• Poster presentation in Samsung AI Forum (2017)

• Global PhD Fellowship, National Research Foundation of Korea (2014~2015)

• Teaching assistant for Digital Signal Processing in Seoul National University (2014)

2. Kookmin University (2010~2014)

Seoul, South Korea

Bachelor's degree, Electrical and Electronics Engineering

• Merit-based scholarship (Top) (2013) (GPA: 4.42/4.5)

• Merit-based scholarship (1st class) (2011) (GPA: 4.44/4.5)

• Merit-based scholarship (Top) (2010) (GPA: 4.36/4.5)

Academic Services

Journal reviews:

• Elsevier Computer Speech and Language (2021, 2022)

• Elsevier Knowledge-Based Systems (2025)

• IEEE Transactions on Audio, Speech and Language Processing (2021, 2022, 2023, 2024, 2025)

• IEEE Signal Processing Letters (2025)

• Springer International Journal of Computer Vision (2023)

• Springer Speech, Image and Video Processing (2024)

Conference paper reviews: 

• Asian Pacific Signal and Information Processing Association (2020, 2021)

• IEEE International Conference on Multimedia and Expo (2022, 2023) 

• Conference of the International Speech Communication Association (2022, 2023, 2024, 2025)

• International Conference on Acoustics, Speech, and Signal Processing (2023, 2024, 2025)

• International Joint Conference on Neural Networks (2025)

Conference session chair:

• Odyssey: The Speaker and Language Recognition Workshop (2022)

Other activities

• Presentation in Samsung Research AI Journal Club seminar, presenter (Fall 2022)

  • Presentation on latent-level instance mixup strategy for self-supervised speaker verification

• Presentation in Yonsei University BK21 plus seminar, presenter (Summer 2022)

  • Presentation on domain generalization techniques for voice biometric systems

• Presentation in CRIM Journee Patrimoine, presenter (Spring 2022)

  • Presentation on domain generalization for speaker verification

• Presentation in CRIM internal R&D seminar, presenter (Fall 2021)

  • Presentation on audio deep-fake detection

• Speech Recognition Seminar in Samsung Electronics, TA (Fall 2019)

  • Prepared teaching materials and tutorials for speaker recognition

• Poster presentation in Samsung AI Forum, presenter (Fall 2017)

  • Presentation on variational autoencoder-based speech embedding technique

• Speaker Recognition Seminar in SK Telecom, presenter (Summer 2017)

  • Presentation on the current trends and popular techniques in speaker recognition

• Digital Signal Processing in Seoul National University, TA (Spring 2014)

  • Prepared teaching materials