About Hao Yu, Full-Stack Developer

Tech Expertise

Mobile
Flutter
iOS (Swift/SwiftUI)
iOS (UIKit/Combine)
AI & ML
OpenAI
Retrieval-Augmented Generation (RAG)
Vector Database
Frontend
TypeScript/JavaScript
React
Backend
Java
SQL/NoSQL
C#
Python
Node.js
Enterprise Application
Archibus
ESRI
ServiceNow

With over 15 years of transformative experience as a full-stack developer, I've built a reputation for turning complex technological challenges into elegant, future-proof solutions. My expertise spans AI integration, mobile development, and enterprise systems that deliver measurable business impact across industries.

My client portfolio includes Fortune 500 companies, government agencies, educational institutions, and innovative startups. By deeply understanding each sector's unique demands—from financial services and energy to higher education and retail—I deliver solutions that precisely address industry-specific challenges while exceeding standard performance metrics.

At the forefront of AI innovation, I've revolutionized how organizations leverage their knowledge assets. My recent work includes developing sophisticated RAG-powered knowledge bases, creating intuitive chatbots for Microsoft Teams, and building AI-enhanced mobile applications that dramatically improve workplace productivity and decision quality.

My technical credentials include Oracle Database Expert certification, Oracle Java Professional certification, and AWS Solutions Architect certification. As an Archibus Subject Matter Expert and certified developer/administrator for both ESRI and ServiceNow platforms, I bring rare cross-platform expertise that enables seamless enterprise system integration.

My philosophy combines technical precision with strategic creativity—I don't just build what clients ask for; I deliver what their business truly needs. Every solution I create is designed for scalability, maintainability, and long-term business value, ensuring my clients stay ahead in rapidly evolving markets.

50+

Projects Completed

30+

Happy Clients

15+

Years Experience

100%

Client Satisfaction