c
cpchen591

Pynel

@cpchen591

AI Agent Builder and LLM Evaluation Expert

China
Engels, Chinees
Sommige informatie wordt in het Engels weergegeven.
Over mij
I help businesses build, test, and improve AI-powered applications. With experience in AI Agent development, LLM evaluation, and software QA, I bridge the gap between AI technology and product quality. My expertise includes: • AI Agent workflows, RAG, and MCP • LLM output evaluation and prompt optimization • AI chatbot and conversational AI testing • Web, mobile, and IoT application testing • Test automation, bug analysis, and quality improvement I focus on finding hidden issues, improving AI reliability, and delivering clear insights that help teams build better products.... Lees meer

Skills

c
cpchen591
Pynel
offline • 
Gemiddelde reactietijd: 1 uur

Bekijk mijn diensten

Software testen
I will evaluate ai outputs and test your ai applications
VanafUS$ 30 / projectMeer informatie
Implementatie en uitrol van AI
I will build ai agents with rag and automation workflows
VanafUS$ 70 / projectMeer informatie

Werkervaring

Freelancer.com

AI Agent Developer

Freelancer.com • Freelance

Jan 2026 - Jul 2026 • 6 mos

• Designed and built a reusable LLM Agent framework for enterprise knowledge Q&A and workflow automation. • Implemented multi-agent collaboration using a Plan & Execute architecture inspired by LangGraph. • Built RAG pipelines with query rewriting, hybrid retrieval (Vector + BM25), and reranking to improve retrieval accuracy. • Designed shared state management, checkpointing, and memory systems for complex multi-step workflows. • Integrated MCP-based tool calling with multi-layer error handling to improve execution reliability.