Lai Jiang, Developer in Toronto, ON, Canada
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Lai Jiang

Verified Expert  in Engineering

React Developer

Toronto, ON, Canada
Toptal Member Since
February 2, 2022

Lai is a senior web developer with seven years of industry experience. He excels in front-end development, Node.js back-end development, and computer vision research. Additionally, he has senior-level proficiency in tech stack, responsive design, and software engineering and architecture. Lai enjoys delivering innovative solutions in the eCommerce industry.


Indoc Research
React, JavaScript, Next.js, Wix, WordPress, Sketch, Test Automation
RIFO Holding Group
React, Vue, React Native, Expo, Amazon Web Services (AWS), Node.js, AWS Lambda...
React, WordPress, Shopify, jQuery, Google SEO, Gatsby, Express.js, Docker...




Preferred Environment

MacOS, Visual Studio Code (VS Code), Slack, Jira

The most amazing...

...thing I've delivered is a web page with 10,000,000+ user views for a big company.

Work Experience

Front-end Lead and Senior Web Developer

2020 - PRESENT
Indoc Research
  • Designed the front-end architecture and performed peer code reviews.
  • Developed core features in the portal system, such as file explorer and schema editor.
  • Designed the UI/UX mockup for a portal project and participated in UX and UI review.
  • Supervised junior web developers and scheduled training accordingly.
Technologies: React, JavaScript, Next.js, Wix, WordPress, Sketch, Test Automation

Senior Full-stack Developer

2019 - 2020
RIFO Holding Group
  • Built and maintained the website and back-end services for users and agents' applications.
  • Developed the app on services platform using React Native and Expo and back-end microservices on the serverless framework, AWS Lambda, and GraphQL.
  • Rebuilt the app home page with Objective-C and Xcode and published it in the app store.
Technologies: React, Vue, React Native, Expo, Amazon Web Services (AWS), Node.js, AWS Lambda, GraphQL

Full-stack Developer

2017 - 2019
  • Analyzed current system structure, designed and coded multilingual support, image cache support, and theme support for upcoming business needs. Created operations management plugin for Edifier, which increased maintenance efficiency five times.
  • Improved SEO ranking from different aspects, optimized site performance, built the sitemap, structured data, and completed backlink and keyword requirements functions.
  • Built and maintained eCommerce sites for Edifier, Ventray, and Ventmere and created responsive standards for better UX.
Technologies: React, WordPress, Shopify, jQuery, Google SEO, Gatsby, Express.js, Docker, Asana, Git

Front-end Developer

2015 - 2017
Alibaba Group
  • Developed the front end, participated in promotion business, and estimated time and costs.
  • Updated the index page by migrating it from Java to Node.js and added a level-based cache, which resulted in a twofold increase of requests per second.
  • Designed and implemented a particle system on the web page, empowering users to create individual particle animation.
  • Read specifications on W3C and designed the structure of JSON to support the web page editor.
  • Combined artificial intelligence and front-end business, implemented the automatic system to replace repeated workforce, and achieved awards at data mining competition and Mao Pi conference.
Technologies: JavaScript, Node.js, Artificial Intelligence (AI), Canvas 2D, Three.js, CSS3, MySQL, Memcached, Redis, Git

Ventmere Company Website
My role was to develop the whole website and create animation. I cooperated with the designer and implemented smooth animation and responsive design to improve UX. I also worked additionally on the SEO to achieve a better Google SEO ranking.

RIFO Vendor App
A React Native app that provides vendor services in the real estate industry.

I used Node.js, AWS Lambda, and GraphQL for the back end as a developer. I also acted as a designer of the entire app, which gave me real working experience doing sketches and presenting UI to customers.

Charite VRE Website

A website for researchers to manage, analyze, catalog, and share their research data.

I was the front-end lead of the whole project. I designed the front-end architecture for the UI portal, including authorization and authentication layer and plugin-based web file explorer. As the front-end lead, I encouraged my team to improve code quality and expand their skills.
2014 - 2016

Master's Degree in Software Engineering

University of Science and Technology of China - Hefei, China

2010 - 2014

Bachelor's Degree in Software Engineering

Beijing University of Posts and Telecommunications - Beijing, China


React, Vue, Node.js, jQuery, Three.js, React Redux


Wix, Git, Canvas 2D, Slack, Jira, Sketch, Expo, Asana


Next.js, Redux, React Native, Express.js


JavaScript, CSS3, TypeScript, GraphQL, Python


Shopify, Amazon Web Services (AWS), AWS Lambda, Docker, WordPress, Visual Studio Code (VS Code)


MySQL, Memcached, Redis


Test Automation


Software Development, Google SEO, Software Architecture, Gatsby, Artificial Intelligence (AI), Animation

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