c
cpchen591

Pynel

@cpchen591

AI Agent Builder and LLM Evaluation Expert

Chine
Anglais, Chinois
Certaines informations sont présentées en anglais.
À propos de moi
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.... Plus d’infos

Compétences

c
cpchen591
Pynel
hors ligne • 
Temps de réponse moyen de 1 heure

Voir mes services

Test de logiciels
I will evaluate ai outputs and test your ai applications
De30 $US / projetPlus de détails
Mise en œuvre et déploiement de l’IA
I will build ai agents with rag and automation workflows
De70 $US / projetPlus de détails

Expérience professionnelle

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.