William Lei
Full Stack Devloper
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Gloversville, NY 12078, US
www.linkedin.com/in/william-lei-5b517b257
https://github.com/meta-crawler
Summary
Senior engineer with full-stack experience specializing in front-end, React and React Native enthusiast
who truly loves Typescript.
Experienced working in big corporations, small startups and as a solo developer—planning architecture,
setting up the CI/CD, coding applications, and deploying them to a server or an app store.
Communicated with other teams and senior management to adapt 50+ clients’ websites to adapt to
changing industry standards.
Built a large scale front-end code base by using React hooks to build complex components such as a
virtualized list, combined strict types, functional-style code and Jest unit tests.
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Employment
03/2021 – 11/2022
Baton Rouge, LA
70806, United States
Full-stack Developer
Novateus
Re-coded application using React, which shortened page load times by up to
65%.
Migrated an application toward the cloud, reducing hosting costs for the client
by 50%.
Designed the application architecture on TypeScript, React and Redux and
accelerated the development rates by 15%.
Handled nearly 5+ production tickets per day, 100+ tickets per month with
respect to live customer trouble ticket resolution.
Contributed as part of a team that made a huge, enterprise app for our biggest
client which is being used worldwide by the client's employees.
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Technologies: React, Redux/Thunk, TypeScript, OAuth 2, Django, Node.js
06/2019 – 02/2021
Raleigh, NC 27612,
United States
Senior Front-end Engineer
ScuTech
Worked closely with the product team to build intelligent search functionality in
React for an ecommerce site with a catalogue of 5000 products leading to an
increase in page views per session of 22%.
Improved the page load speed by 15% for an e-commerce site by leveraging
browser caching and improving server response times.
Utilized the Node.js and GraphQL to create APIs for both internal and external
use reducing the time to ship new front-end features by 4% Fresh Direct.
Built extensive test coverage for all new features which reduced the number of
customer complaints by 7%.
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Technologies: React, React/Thunk, Node.js, GraphQL, RESTful API
09/2017 – 05/2019
Hong Kong
Front-end Developer
BR Softech PVT. LTD.
Developed product tours with React for a new feature, improving customer
adoption by 25% leading to increased revenue by $1M.
Created a compatible, custom client dashboard, reducing support tickets by
45%.
Worked with UX/UI design teams to improve existing applications and increase
conversion rates by 20%.
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Supported the QA team to design test cases for various change requests and
enhancement.
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Technologies: React, HTML5, CSS, JavaScript, Tailwind CSS, Material UI
08/2016 – 08/2017
Hong Kong
Front-end Developer Intern
Clarity
Translated the design team’s UX wireframes and mockups into responsive,
interactive features using HTML, CSS, and JavaScript that increased user
engagement on page by over 200%.
Provided strategic advisory on design and development processes, initiating
revamped structures and systems to ensure a consistently high level of quality.
Researched, established, documented, and maintained company coding best
practices, development organization, and workflow standards.
Collaborated with the agile team to migrate a 30+ page legacy company
website to React and Sass.
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Technologies: React, PHP, SCSS, JavaScript, CSS3, HTML5, ECMAScript (ES6)
Skills
LANGUAGES
JavaScript, TypeScript, Python, ECMAScript
(ES6), GraphQL, PHP, HTML5, CSS3, Sass,
BASH, C#
FRAMEWORKS
React Native, Flutter, MUI (Material UI), Tailwind
CSS, OAuth 2, JSON Web Tokens (JWT),
Express.js, Django
LIBRARIES/APIs
React, Redux-Thunk, REST APIs, jQuery, Node.js
TOOLS
GitHub, Mongoose, NPM, Mocha, PostCSS
PLATFORMS
Visual Studio Code, Docker
STORAGE
MongoDB, MySQL, PostgreSQL, Firebase
Education
09/2012 – 06/2016
Hong Kong
Bachelor’s Degree / Computer Science
The University of Hong Kong
