Chief AI Engineer & Chief Researcher at PIN AI @PINAI_IO | Ex-Zhipu AI @Zai_org | Ex-SAP @SAP
I am a senior AI engineer, full-stack engineer, and AI product manager focused on taking AI products from 0 to 1: product framing, research, agent harness design, backend/frontend/mobile/hardware implementation, evaluation, and launch.
My long-term focus is Personal AI, Ambient AI, Agent Harness, and practical AI products. I also turn product and engineering work into skills, articles, and open-source artifacts.
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Chief AI Engineer & Chief Researcher at PIN AI, building Personal AI and agentic product systems.
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Built Personal AI / Ambient AI hardware prototypes and hardware-software product workflows during my work at PIN AI.
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Company milestone: $10M funding announcement.
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Product milestone: 3M+ users announcement.
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Open source: PIN-AI/pinai_agent_sdk.
- agent-chief - My open-source Agent Harness project for AI-native builders.
- MTEB - 2+ year contributor to the embedding benchmark ecosystem and leaderboard workflows.
- PINAI Agent SDK - SDK work around the PINAI agent ecosystem.
- Zhipu AI / Z.ai - FDE work on model fine-tuning and customer co-creation.
- SAP - Full-stack and mobile engineering across web, backend, iOS, and Android.
- SAP mobile apps: SAP Business One Sales and SAP Business One Service.
Agent Harness - Personal AI - Ambient AI - Ambient AI Hardware - Hardware-Software Integration - AI Agents - LLM Orchestration - Evaluation - TypeScript - React - Python - FastAPI - Swift - iOS - Android - PostgreSQL - Full-stack Product Engineering
- Website: smileflow.cn
- X / Twitter: @Yeshujing
- Email: smiletoye@gmail.com