Avatar of William Lei.
William Lei
Full Stack Developer
ProfileResume
Posts
20Connections
In
Avatar of the user.

William Lei

Full Stack Developer
•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.
Neufluence
Logo of the organization.
The University of Hong Kong
Gloversville, NY, USA

Trình độ chuyên môn

  • Tình trạng hiện tại
    Thất nghiệp
  • Nghề nghiệp
    Full Stack Development
    Front-end Engineer
    App Developer
  • Lĩnh vực
    Phần mềm
    Ứng dụng di động
    Dịch vụ cung cấp thông tin
  • Kinh nghiệm làm việc
    6-10 năm (6-10 năm liên quan)
  • Kinh nghiệm quản lý
    I've had experience in managing 10-15 nhân viên
  • Kỹ năng
    React
    Redux
    VueJS
    Django
    ExpressJS
    Next.js
    Nuxt.js
    Mongoose/MongoDB
    PostgreSQL
    GitHub
    CI/CD
    React Native
    HTML5
    Tailwind CSS
    Material UI
    AngularJS
    PHP
    Flutter App Developement
    Laravel
  • Ngôn ngữ
    English
    Bản địa hoặc song ngữ
  • Trình độ học vấn cao nhất
    Bachelor

Ưu tiên tìm kiếm việc làm

  • Hình thức làm việc mong muốn
    Full-time
    Chỉ làm việc từ xa
  • Vị trí làm việc mong muốn
    Senior Front-End Engineer / Full Stack Developer
  • Địa điểm làm việc mong muốn
    Hong Kong
    Singapore
    Taiwan
    Japan
    United States
    United Kingdom
    Netherlands
    Switzerland
    Canada
  • Freelance
    Freelance toàn thời gian

Kinh nghiệm làm việc

Full Stack Next/Firebase Engineer

04/2023 - Hiện tại
Atlanta, GA, USA
- Collaborated with the design team to implement a new user interface that resulted in a 20% increase in user satisfaction. - Implemented server-side rendering using Next.js, resulting in a 30% improvement in page load times. - Developed a custom analytics dashboard using Firebase, providing real-time insights into user behavior and increasing conversion rates by 10%. - Conducted over 3 code reviews per day, resulting in a 50% reduction in code defects. - Increased user interaction rate up to 25% by using email services with SendGrid Email, Firebase Notification. Technologies: Next.js, TypeScript, Firebase Admin SDK, Firestore, SendGrid Email Service, Twillo

Full Stack Web & Mobile Developer

NERG Inc
Contract
01/2023 - 04/2023
4 mos
Santa Clara, CA, USA
- Defined and implemented the initial app architecture and framework. - Delivered a POC and MVP with over 300 native pure components and screens on a very tight schedule. - Reduced development cycles by up to 25% by guiding backend and Android teams through mobile API definition and implementation details. - Used and contributed to backend and DevSup projects (PostgreSǪL, gRPC, Node.js and Google Cloud). - Contributed CI, deployment, and other tools needed to maintain and deploy apps. - Introduced several handy patterns to simplify the writing of unit and instrumentation tests and speed up development by 30%. Technologies: React, React Native, Kotlin SDK, Android, Express, TypeScript

Full-stack Developer

Novateus
Full-time
03/2021 - 11/2022
1 yr 9 mos
United States
•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. Technologies: React, Redux/Thunk, TypeScript, OAuth 2, Django, Node.js

Senior Front-end Engineer

ScuTech
Full-time
06/2019 - 02/2021
1 yr 9 mos
United States
•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%. Technologies: React, React/Thunk, Node.js, GraphǪL, RESTful API

Front-end Developer

09/2017 - 05/2019
1 yr 9 mos
Hong Kong
•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%. •Supported the QA team to design test cases for various change requests and enhancement. Technologies: React, HTML5, CSS, JavaScript, Tailwind CSS, Material UI

Front-end Developer Intern

Clarity
Internship
08/2016 - 08/2017
1 yr 1 mo
Hong Kong
•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. Technologies: React, PHP, SCSS, JavaScript, CSS3, HTML5, ECMAScript (ES6)

Học vấn

Logo of the organization.
Bachelor of Engineering (BEng)
Computer Science
2012 - 2016