Galen Zhao

Full Stack Engineer & Hardware Specialist

Versatile engineer with comprehensive expertise spanning cloud-native backend systems, cross-platform applications, IoT/embedded systems, and hardware design. Specialized in building end-to-end solutions from circuit design to firmware development and full-stack deployment. Active contributor to open-source projects with proven ability to architect and deliver complex, scalable systems.

Core Technology Stack

Backend & Server Development

  • Node.js / JavaScript / TypeScript
  • Python (Flask, Tornado, Django)
  • Java & JVM Ecosystem
  • Ruby on Rails
  • Go (System utilities & network services)

Mobile & Cross-Platform

  • iOS Development (Objective-C, Swift)
  • Android Development (Java, Kotlin)
  • React Native & Cross-platform frameworks

Frontend & Web Technologies

  • Vue.js & Vue ecosystem
  • React & React ecosystem
  • HTML5 / CSS / SCSS
  • Modern JavaScript frameworks & tools
  • UI component libraries & design systems

DevOps & Cloud Infrastructure

  • Docker & Container Orchestration
  • Nginx / OpenResty & Web servers
  • DNS Services & Network Management
  • System Monitoring & Observability
  • CI/CD Pipeline Design & Automation
  • Cloud Deployment & IaC

Database & Data Engineering

  • Relational Database Design & Optimization
  • PostgreSQL / MySQL / SQLite
  • Data ETL & Processing Pipelines
  • Query Performance Optimization

Embedded Systems & IoT

  • ESP32 / ESP8266 Firmware Development
  • Arduino & Microcontroller Programming
  • RTOS & Real-time Systems
  • Lua Embedded Scripting (NodeMCU)
  • IoT Protocol Implementation
  • Sensor Integration & Data Acquisition

Hardware Design & Electronics

  • Circuit Schematic Design
  • PCB Layout & Board Design
  • Component Selection & Integration
  • Power Management & Regulation
  • Signal Integrity & EMC Considerations

Native & Systems Programming

  • C++ & Low-level optimization
  • JNI (Java Native Interface)
  • Linux Kernel Development
  • Device Drivers & HAL
  • Memory Management & Performance Tuning

Security & Advanced Topics

  • Cryptography & Encryption
  • Network Protocol Implementation
  • Payment & Authentication Systems
  • Dynamic Code Execution & Hot Patching
  • REST API Design & GraphQL

Key Strengths

Full-Stack Mastery End-to-end project delivery from hardware design and firmware to cloud infrastructure and user interfaces
Hardware to Software Bridge Seamless integration of embedded systems with backend services and mobile/web frontends
Multi-Language Expertise Production-level proficiency in 8+ programming languages across different paradigms
IoT & Embedded Specialist Deep experience with microcontrollers, firmware development, and sensor networks
Cross-Platform Development Comprehensive experience spanning desktop, web, iOS, Android, and embedded systems
Systems & Architecture Deep understanding of distributed systems, protocols, and infrastructure design patterns
Open Source Contributor Active participation in community projects with focus on knowledge sharing
DevOps & Automation Building efficient development workflows, infrastructure tools, and deployment automation

Get In Touch

Email me@zhenggangzhao.org
GitHub github.com/galenzhao
LinkedIn linkedin.com/in/galenzhao
Blog blog.zhenggangzhao.org
Passionate about crafting elegant solutions where hardware efficiency meets software elegance. Committed to continuous learning and building systems that seamlessly bridge the physical and digital worlds.