09/06/2022 updated

**** ******** ****
100 % available

Professional Full Stack Web Engineer

Oakland, USA
USA
Bachelor of Computer Science
Oakland, USA
USA
Bachelor of Computer Science

Profile attachments

CV - Roy Lee

Testing (Software)JavaScript (Programming Language)Application Programming Interfaces (APIs)Amazon Web ServicesSoftware ApplicationsDatabasesContinuous IntegrationWeb DevelopmentDjango Web FrameworkAmazon DynamoDBEnzymesMobile Application SoftwareLaravelPostgreSQLMongoDBMySQLNode.JsRuby On RailsNext.jsSeleniumSoftware EngineeringWeb ApplicationsWordPressFriendlinessCircleciFront End (Software Engineering)TestingReactJSExpress.jsPixel PerfectBackendVue.jsAngularJSMaterial UIKubernetesFull Stack DevelopmentGraphqlReact NativeRegion ManagementReact ReduxDockerMicroservices
I've been working as a full stack developer, mainly worked with React, Node.js and Django. I've participated in architecting, developing and deploying several websites and web applications using modern technologies in web development.
I started my career as a frontend developer with React and I am much proficient in frontend development with several libraries and technologies, such as React, Vue.js and Angular, which are top 3 frameworks/libraries. The following are just highlights of my professional skills and achievements that I hope to bring to clients.
  • Implement reusable components with React, Vue and Angular
  • Proficient in state management libraries like Redux(Thunk, Saga, Toolkit), Vuex, Mobx and NgRx
  • Use GraphQL(Apollo / Relay) for faster communication API
  • Perform Software Best Practices and Software Testing Abilities with JavaScript testing frameworks such as Jest, Enzyme, Cypress and Selenium
  • Build SEO friendly websites by implementing SSR with Next.js and Nuxt.js
  • Optimize website performance and loading speed by Code Splitting and Lazy Loading
  • Collaborate with design team to perform pixel-perfect, responsive pages and features using design libraries such as Material UI and Ant Design
  • Build desktop applications and mobile applications with Electron and React Native
  • Work with product team to maintain and implement customer-facing features
Working as a full stack developer over 7 years has given me rich understanding in backend development using several popular frameworks such as Express.js, Django, Laravel and Ruby on Rails, and extensive familarity with DBMS. Developing flexible, scalable web applications with Node.js was a great chance for me to use popular libraries for different use such as Prisma, TypeORM for ORM and SuperTest for testing. These are my abilities and professional skills in backend development, mainly focused on Node.js.
  • Developed several full stack applications using Express.js, Koa.js, Django and Ruby on Rails
  • Proficient in DBMS such as MySQL, PostgreSQL, MongoDB and DynamoDB
  • Experienced in using ORM in Express.js with Prisma and TypeORM
  • Focus on tests using SuperTest and Jest in Express.js
  • Implement flexible, scalable real time application with Node.js using Socket
  • Build microservices using Express.js
  • Integrate GraphQL in Express.js, Django and Ruby on Rails
  • Use Docker, Kubernetes, CircleCI for CI/CD and AWS for deployment
     

Languages

EnglishNative speaker

Project history

FULLSTACK ENGINEER

Nexxo Financial
  • Worked on the development and implementations of decentralized application with React, Solidity and Truffle.
  • Architected, developed and deployed web / mobile application with Express.js, PostgreSQL, React , React Native, Mobx and Typescript.
  • Implemented unit testing and e2e testing in React projects with testing-library in React, Enzyme and Cypress.
  • Architected and developed microservices using Koa.js, MySQL , Prisma, Elastic Search and maintained monolith web application with Django and React.

SENIOR WEB DEVELOPER

Loadsys Solutions
  • Led development team in delivery of various Django-React and MERN stack projects requiring close cooperation among members to share information and develop solutions to meet broad array of deliverables.
  • Designed, developed and deployed 4+ full-stack web applications according to business objectives and needs of various clients with React, Vue, Django , Express.js.
  • Improved the page speed by 15% for the ecommerce site that generates $25M annually in revenue by implementing Code-Splitting and Optimizing performance with React, GraphQL and Apollo.
  • Implemented SEO in React application for e-commerce site with a catalog of 20000+ products leading to an increase in page views per session of 23% with SSR in Next.js.
  • Worked on building customer-facing web application with Express.js, Prisma , Vue.js, PostgreSQL and Node.js.
  • Built Progressive Web Application (PWA) with React, TypeScript and GraphQL (Relay).
  • Deployed several web applications using Docker, Kubernetes and AWS

NODE.JS DEVELOPER

Loadsys Solutions
  • Maintained backend code built with Express.js, MySQL and collaborate with product team to implement new features plan for future products.
  • Designed, implemented, documented, and successfully deployed real time application with Node.js and, Socket and WebRTC.
  • Worked on MERN stack project as a cross developer with MongoDB, Express.js, React and Node.js.

FRONT-END DEVELOPER

Loadsys Solutions
  • Worked on the Payments team to save over 50,000 customers time and improve cash flow through the development of modern, responsive customer experiences using Angular and Ant Design Library.
  • Contributed to the in-house UI library to create reusable React components that saved over 200 hours of development time per month.
  • Created a web app MVP for a store delivery management platform with 100+ business customers to create, manage and monitor deliveries using React and Redux.

REACT DEVELOPER

Liventus, Inc
  • Delivered responsive, cross-browser compatible and accessibility compliant websites, achieving 19% faster load time than industry average using React and Flux.
  • Collaborated with the UX/UI design teams to improve the website and applications, increasing conversion rates by 25% using SASS/SCSS and Bootstrap.
  • Expanded features, refined code, and improved performance with React, producing smoother operations and enhancing user engagement.

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