Hi, There 👋

Wonbeom Jang

LLM Research Engineer @ SK Telecom

I'm interested in LLM Evaluation, Synthetic Data, and Model-based Data Curation.

🌐 wonbeomjang.kr · 📧 jtiger958@gmail.com

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💻 Work Experience

Role	Company	Period
LLM Research Engineer	SK Telecom	2024.01. ~
Deep Learning Research Intern	Neurocle	2023.01. ~ 2023.08.

🔬 Research Experience

Role	Lab	Period
Undergraduate Researcher	CVML Lab. (Advisor: Prof. Junseok Kwon)	2019.08. ~ 2020.08.

📂 Projects

Project	Description	Period
A.X Foundation Model	Data design and construction for the 500B-parameter A.X K1 Foundation Model	2025.08. ~
TelcoLLM, TelBench, TelAgentBench	Built TelcoLLM in collaboration with OpenAI and Anthropic. Designed benchmarks for Telco LLM evaluation	2024.01. ~ 2025.10.
Multilingual Customer Support Moderation	Developed multilingual LLM for content moderation. Outperformed proprietary models with small open models	2024.11. ~ 2025.07.

📄 Publications

• A.X K1 Technical Report, arXiv, 2026
• TelAgentBench: A Multi-faceted Benchmark for Evaluating LLM-based Agents in Telecommunications, EMNLP 2025 Industry Track
• TelBench: A Benchmark for Evaluating Telco-Specific Large Language Models, EMNLP 2024 Industry Track
• Deep-plane sweep generative adversarial network for consistent multi-view depth estimation, Machine Vision and Applications, 2022

🏅 Awards

Award	Grade	Date
Military Service Open SW Online Hackathon	Navy Chief of Staff Award	2021.11.
Barrier-free App Development Contest	Encouragement Award	2020.02.

🎓 Education

• B.S. in Computer Science & Engineering, Chung-Ang University (2018.03. ~ 2024.02.)
  • GPA: 4.45/4.5

🛠️ Tech Skills

Classification	Skills
Machine Learning
LLM Serving
Language
Infra
Experiment