Beijing, China · On-site

Working on post-training for Code Agents at Tencent Youtu Lab, with a focus on reinforcement learning and tool-using agent behavior.

Shenzhen, China · On-site

Built a one-million-pair multilingual translation corpus for QQ International spanning 13 Eurasian languages, covering data filtering and cleaning, low-resource language-pair distillation, NER entity repair, 4B-class base-model evaluation, and SFT. The resulting model improved in-domain performance by approximately 10 percentage points while matching a substantially larger MoE translation baseline on FLORES-200 and WMT25.

Beijing, China · On-site

Developed an LLM-based advertising-slogan recognition system for player-community moderation. Combined retrieval-augmented generation with LoRA fine-tuning and deployed efficient inference with vLLM. The system reached an F1 score of 85% and supported hourly offline batch recognition.