sisi zhang

华中科技大学计算机专业本科、硕士。曾在腾讯工作五年，随后用一年时间开发个人项目。现为大模型全栈工程师，在算法、工程和数据方面均有实践，关注代码智能体强化学习、PPO 与过程奖励。 B.S. and M.S. in Computer Science from Huazhong University of Science and Technology. I spent five years at Tencent and one year building an independent project. I am now a full-stack LLM engineer with hands-on experience in algorithms, engineering, and data, focusing on code-agent RL, PPO, and process rewards.