Henry Lee

Available to hire

Hello, I'm Henry Lee, a forward-thinking full-stack software engineer with 8 years of experience developing web and mobile applications and back-end systems.

About

Hello, I’m Henry Lee, a forward-thinking full-stack software engineer with 8 years of experience developing web and mobile applications and back-end systems. I’m a Blockchain & Full Stack Developer with 5 years of experience building secure, scalable, and high-performance decentralized applications using the MERN stack.

  • Joined September 2025

Languages

  • EnglishFluent

Industry experience

  • Software & Internet
  • Computers & Electronics
  • Professional Services
  • Media & Entertainment

More experts in Waterloo, Canada

Projects · 2

AI-Driven Business Planning and Financial Modeling Tool

Bizplania is an integrated web platform that helps entrepreneurs build and refine their business plans through step-by-step guidance, financial modeling, and pitch-ready documentation. It provides customizable templates, real-time collaboration tools, and built-in analytics to help users craft viable business models and assess growth trajectories. The platform is designed to simplify the business planning process while strengthening the strategic, financial, and presentation components of startup planning.

  • AI Engineer
  • Full Stack Developer

This Healthcare SASS Planform is a planform that monitors people’s health indicators in real time and provides artificial intelligence responses tailored to the corresponding symptoms.

healthcare SaaS platform
  • Full Stack Developer

Work experience· 4 roles

Freelance Full Stack & Blockchain Developer · FreelanceJan 2025 – Present · 1 yr 11 mos

Built full-stack decentralized applications; developed contracts with user interfaces using React, Web3.js, and Node.js; created backend systems interfacing with MongoDB and PostgreSQL; API development to interface with smart contracts and blockchain networks.

Senior Full Stack & Blockchain Developer · OpenTextJan 2021 – Present · 5 yrs 11 mos

Developed and deployed smart contracts on Ethereum and Binance Smart Chain, focusing on ERC standards. Moved automation solution into a commercial software. Designed and developed reusable software components used across four projects, reducing development effort by 40%. Re-engineered critical modules to rely on a decentralized library, achieving a 59% performance improvement.

Senior Full Stack & Blockchain Developer · OpenTextJul 2017 – Dec 2021 · 4 yrs 6 mos

Developed and deployed smart contracts on Ethereum and Binance Smart Chain; built backend systems interfacing with MongoDB and PostgreSQL; API development: RESTful APIs to interface with smart contracts and blockchain networks; migrated automation to a commercial software product; redesigned components reducing development effort by 40%; re-engineered critical modules within a sprint to improve performance.

Software EngineerJul 2017 – Present · 9 yrs 5 mos

Education

Software Licensing and Distribution · Kenfil Hong Kong2009 – 2025
Bachelor of Mathematics · University of Waterloo2009 – 2013
Software Licensing and Distribution · Kenfil, Hong Kong2009 – 2025
Mathematics · University of Waterloo2013 – 2025

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