Howdy! I’m Weijia Zhang
I am an incoming M.S. student in Computer Science at Yale University (2026 - 2028), admitted to the (Thesis Track) M.S. in Computer Science with Full Scholarship.
I graduated from UIUC in Math + Computer Science with the 2026 C.W. Gear Outstanding Undergraduate Student award, as one of two annual recipients.
Currently, I worked as a research assistant in UIUC U Lab on LLM agents, multimodal agents, and agentic RL, advised by Prof. Jiaxuan You.
Research
My research interests center on LLM agents, especially next-generation AI agents that bridge virtual and physical worlds through socially intelligent, tool-agnostic, and ethically grounded architectures.
- Multimodal agents: memory, reasoning, tool use, and multi-agent systems
- Conversational AI: anthropomorphism and social intelligence
- Post-training: agent SFT and RL
News
- 2026.05: 🎉🎓 Graduated from UIUC in Math + Computer Science with the 2026 C.W. Gear Outstanding Undergraduate Student award! 🏆
- 2026.01: 🎉👑 Paper on bias inheritance was accepted to ACL 2026 as an Oral! 📄✨
- 2025.10: 🚀 SeeingEye was released as an arXiv preprint and is under review at EMNLP 2026! 👀📝
- 2025.07: 🎉 Joined Microsoft Research Asia as a research intern! 🔬💼
Gamedev
Beyond research, I am a passoinate indie game developer, feel free to check my game work on the game page. I am also willing to discuss the future of AI X Game.
Education
Yale University
M.S. in Computer Science
2026-08 - 2028-05
Thesis Track with Full Scholarship
University of Illinois Urbana-Champaign
B.S. in Computer Science and Mathematics
2022-08 - 2026-05
2026 C.W. Gear Outstanding Undergraduate Student, one of two annual recipients
GPA: 3.7/4.0
Work Experience
TikTok
Research Intern
Jun 2026 - Present
Researching self-evolving multimodal agents for content moderation.
- Designed a ReAct-based moderation agent that combines frame sampling, ASR/OCR, metadata, originality scoring, and visual detection tools into policy-grounded decisions.
- Built a reflection-and-evolution loop that distills solver failures into reusable skills, improving overall F1 score by 15.5%.
Microsoft Research Asia, Microsoft
Research Intern
Jul 2025 - Sep 2025
Worked on VLM/LLM agent research to improve Microsoft Excel Copilot capabilities.
- Built the TextAnalysisSFT data pipeline for SFT data generation for the new TextAnalysis API in Excel Copilot.
- Mined 2000+ real Kaggle samples, filtered heavy-text sheets, generated queries and Office.js code, and validated outputs with SheetEngine.
- Delivered a dataset that improved Office Script code-generation accuracy by 75%.
Reborn Network
AI Engineer
May 2023 - Jul 2023
Built real-time role-playing agent systems in Unity VR.
- Developed a role-playing agent Unity VR game enabling agents to interact through text, voice, and VR actions in real time with under 1s latency.
- Introduced RAG and vector databases to strengthen long-term agent memory, improving dialogue coherence score from 2/5 to 4/5.
- Designed a reusable character-card framework, enabling a UGC ecosystem and reducing character persona configuration time by 300%.
Tencent, WeChat Group
Software Engineer
Aug 2024 - Sep 2024
Built performance analysis tooling for WeChat Mini Programs and Unity memory profiling.
- Developed a cross-platform Android and iOS hardware performance analysis tool for WeChat Mini Programs, supporting 200+ partner teams in identifying performance bottlenecks.
- Built a Unity Mono Memory Profiler that discovered 40+ hidden memory allocation points, reducing memory-leak-related crash rate by 120%.
my schedule
Feel free to check my availability. Times shown in Eastern Time.