Qichang Zheng
Experienced AI Scientist | Machine Learning Engineer
- Role
- Ai Scientist at Devz Ai Technologies Inc
- Location
- Los Angeles, CA, US
- LinkedIn followers
- 500 followers
Experience
Ai Scientist
Sep 2024 — Present · Irvine, CA, US
Autonomous Agent Architecture & Orchestration: Architected an enterprise-grade agentic system based on Tool-Use and Chain-of-Thought (CoT) paradigms. Orchestrated the end-to-end automation lifecycle—from intent recognition and task planning to execution and validation—ensuring data privacy and high concurrency, contributing to $6M in annual orders.• Devi Multi-Agent Collaborative Framework: Engineered a project management agent with MCP toolset to automate project creation (parsing PRDs into deliverables), tracking (analyzing status), and management (dynamic reprioritization). Built a talent matching system to auto-assign tasks based on expertise, automating the full \"Create-Schedule-Manage\" lifecycle.• Self-Healing Workflow: Designed a closed-loop CoT agent for operations. Upon incident triggers, the agent retrieves historical cases, generates fixes, and iteratively self-refines solutions based on error logs while generating verification scripts. Improved solution accuracy to 96% and reduced response time to under 2 minutes.• General-Purpose Web Agent: Solved dynamic environment challenges by developing a Selenium-based Web Agent. Combined LLM intent recognition with HTML DOM tree parsing and recursive interaction to manipulate unstructured pages. Introduced Visual Language Model (VLM) verification, achieving a 63% end-to-end resolution rate.• LLM Post-Training: Led the Supervised Fine-Tuning (SFT) of vertical Ops LLMs. Utilized Unsloth to accelerate distributed training, achieving a 55% relative improvement in domain-specific technical accuracy compared to GPT-4.• Inference Acceleration & Industrialization: Deployed distributed inference services via vLLM. Achieved 200+ tokens/s generation speed and 100+ high concurrency, reducing agent interaction costs by 80% to support high-frequency tool calling.
Education
University of Chicago
Master's degree, Computational Social Science
Xi'an Jiaotong-Liverpool University
Bachelor of Science - BS, Economics and Finance
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