Di Yao

About Di Yao

Seasoned Engineering Leader with 8+ years of total software development experience which includes leading engineering teams in building global scale systems at Fortune 500 companies like Amazon, Nordstrom, Microsoft. Deep experience in E-commerce. Have consistent track record of achieving results specially under tough circumstances- Excellent tech leadership skills as tech lead- Experience as tech lead building ML pipeline and backend system - Experience in FAANG companies and startup-to-midsize organizations- Seasoned in project management and interpersonal communication, ensuring on-time and in-budget project delivery.Specialties: Architecture, Object Oriented Design, Training, Team Leading, Requirements gathering, Project Management, Database Schema design, Restful API design, DevOps.

Experience

1. Software Engineer

   Amazon Ads

   Jul 2025 — Present · Seattle, WA, US

   Built an LLM-powered agentic workflow for Amazon Ads customers- Multi-step agentic workflow (LangChain, MCP tool orchestration)- RAG-based knowledge retrieval with embeddings stored in a vector database- Quality evaluation using LLM-as-judge

Education

• New York University

  Master of Science (MS), Computer Science

• Beijing University of Posts and Telecommunications

  Bachelor of Science (BS), Electrical and Electronics Engineering

Skills

• Hadoop
• Mapreduce
• Html
• Vagrant
• Sql
• Linux
• Postgresql
• Hive
• Flask
• Cloud Computing
• Java
• Lamp
• Shell Scripting
• Python
• Haskell
• Big Data
• Amazon Web Services (Aws)
• Css
• Microsoft Sql Server
• Web Development
• C++
• Node.js
• Mysql
• Functional Programming
• Docker
• Mvc Architecture
• Php
• Xml
• Cascading Style Sheets (Css)
• C
• Javascript
• C#