AI / LLM Engineering
Current focus
China
Focused on model fine-tuning and AI model evaluation capabilities, including workflows for assessing model behavior, improving response quality, and supporting iterative model optimization.
AI / LLM Engineer
Building reliable AI experiences from model behavior to product delivery.
AI / LLM engineer with TikTok production software engineering experience and a CS master's background, now focused on model fine-tuning, AI evaluation capabilities, and production-grade AI product engineering.
01
About
I am an AI / LLM engineer with production software engineering experience at TikTok across user-facing product features, AIGC-powered social experiences, and backend engineering. My work has involved large-scale social product experiences, recommendation surfaces, virtual identity features, and cross-functional collaboration with product, design, and algorithm teams. I now focus on model fine-tuning, AI evaluation capabilities, and engineering reliable AI experiences from model behavior to product delivery.
02
Experience
Software Development Engineer
TikTok
2023 - 2025
Worked on production software systems across user-facing product features, AIGC-powered social experiences, and backend engineering. Built and launched social product features in multiple regions, collaborated with product, design, and algorithm teams, and contributed to recommendation-related engineering improvements with a focus on reliability, maintainability, and product impact.
M.S. in Computer Science
Carnegie Mellon University
Pittsburgh
Studied intelligent information systems with coursework across machine learning, NLP, search engines, distributed systems, and production ML.
03
Selected Projects
Selected work across AI product engineering, backend systems, recommendation-related engineering, and applied machine learning.
AI Application
OCR-RAG Knowledge Repo
Turns scanned PDFs into a searchable and question-answerable knowledge repository with OCR extraction, semantic retrieval, and LLM-powered answers. View projectAI Knowledge System
LLM Knowledge Graph
An interactive knowledge graph for organizing, browsing, and understanding core AI / LLM concepts and their relationships. View projectNLP / Knowledge Graph
COVID-19 Knowledge Graph Construction
Undergraduate final year project on extracting entities and relations from COVID-19 literature to build a medical knowledge graph and visualization application. View projectSearch / Backend
Search Engines
CMU coursework project implementing retrieval and ranking components including exact match, best match, relevance feedback, learning-to-rank, and diversified ranking. View project04
Contact
I am open to conversations around AI engineering, LLM applications, backend systems, and practical machine learning.