PhyongNam Kim, Front-end Development Developer in Seoul, South Korea
PhyongNam Kim

Front-end Development Developer in Seoul, South Korea

Member since September 19, 2019
PhyongNam is an experienced full-stack developer with superior skills in developing mobile apps, SPA, PWA, and RESTful APIs. He has extensive experience in large-scale application development, deployment, and enterprise-level architecture. PhyongNam enjoys researching and learning new ways to innovate and develop stunning products with great functionality, stability, and visual details.
PhyongNam is now available for hire


  • Self-employed
    Front-end, JavaScript, TypeScript, ECMAScript (ES6), React, React Native...
  • Tellimer Limited
    Front-end, JavaScript, TypeScript, ECMAScript (ES6), Vue, Nuxt.js, Vuex...
  • NHN Entertainment
    Amazon Web Services (AWS), Jenkins, Jasmine, Heroku, AWS, Jest, Vue...



Seoul, South Korea



Preferred Environment

Git, Visual Studio Code, MacOS, Linux

The most amazing...

...thing I've coded is an eCommerce platform that became one of top platforms in Korea, supporting simultaneous access for thousands of users at same time.


  • Senior Full-stack Developer

    2018 - PRESENT
    • Developed the front end of various web apps using Angular, React, Vue.js, and its frameworks, including Next.js, Gatsby, and Nuxt.js.
    • Developed iOS and Android apps using React Native.
    • Worked as a senior developer for some projects, managing teams consisting of several developers.
    Technologies: Front-end, JavaScript, TypeScript, ECMAScript (ES6), React, React Native, Redux, Vue, Vuex, Gatsby, Next.js, Nuxt.js
  • Vue.js | Front-end Developer

    2019 - 2021
    Tellimer Limited
    • Developed email templates supporting different email apps using HTML and CSS and integrated them into the email generation platform.
    • Updated and developed web pages based on a design using Nuxt.js.
    • Developed unit and E2E testing using Jest,, and Cucumber.
    Technologies: Front-end, JavaScript, TypeScript, ECMAScript (ES6), Vue, Nuxt.js, Vuex, GraphQL, Bootstrap, Jest,, Cucumber, Unit Testing, E2E Testing
  • Senior Front-end Developer

    2015 - 2018
    NHN Entertainment
    • Developed web applications and mobile apps using React, React Native, and Redux.
    • Developed an HTML5 mobile game for LINE play, mainly using JavaScript.
    • Built a smart editor and a full-featured WYSIWYG editor using Vue.js and TypeScript.
    • Provided TDD with Jasmine, Jest, and Jenkins with CI/CD.
    • Utilized cloud hosting services, including AWS and Heroku.
    Technologies: Amazon Web Services (AWS), Jenkins, Jasmine, Heroku, AWS, Jest, Vue, JavaScript, Angular, React Native, React
  • React Native Developer

    2015 - 2017
    • Developed an iOS and Android app for car sharing using React Native.
    • Provided TDD using Jest, Jenkins, and Crashlytics.
    • Helped to publish the app in the App Store and Google Play.
    Technologies: Crashlytics, Jenkins, Jest, Redux, React Native
  • Full-stack Developer

    2013 - 2015
    • Developed a food recipe app with a social networking feature using Ionic and AngularJS.
    • Built REST APIs for a mobile app using Express.js and MongoDB.
    • Developed unit testing for an API and Ionic app using Karma and Mocha.
    Technologies: MongoDB, Mocha, Karma, Express.js, AngularJS, Ionic
  • Full-stack Developer

    2012 - 2015
    • Developed the front end for an eCommerce platform using HTML, CSS, JavaScript, jQuery, and Ajax.
    • Created the back end (RESTFul APIs) using PHP and MySQL.
    • Integrated various third-party APIs, including Google Map APIs, Google Analytics, Facebook APIs, and more.
    Technologies: CSS, Ajax, jQuery, JavaScript, HTML, PHP
  • Web Developer

    2011 - 2012
    • Developed and maintained an intranet system for the company.
    • Took part in several web projects as a junior developer.
    • Learned the internet of things (IoT) while working on various web projects.
    Technologies: Java, jQuery, CSS, JavaScript, HTML, PHP


  • Vue.js - News Platform

    A news platform providing world-class investment insights on the countries, companies, and sectors shaping emerging markets.

    The platform consists of many sub-systems, and I mainly worked on developing a website for customers and the dashboard and edit platform for analysts and editors.

  • React Native - Car Sharing App

    Developed a car-sharing app for iOS and Android platforms using React Native.

    It's one of the top three car-sharing apps in Korea.

  • React Native - Collaboration App

    Springshot is a workforce optimization and collaboration platform which allows mobile teams to coordinate and perform time-sensitive tasks.
    It's been used by large enterprises like KFC, Delta Air Lines, and more.

    I've worked as a team member in React Native team and developed iOS and Android apps using React Native.

  • React - Social Networking Platform for Artists and Fans

    Worked as a front-end developer to develop social networking websites for artists and fans using React and Redux.

  • React - B2B Payment Platform

    B2B payment platform helping companies to manage their unpaid invoices and improve their cash collection. It allows businesses to collect unpaid invoices quickly and reduce overdue payments by 50%.
    I worked as a front-end developer and developed the website using Gatsby.

  • Angular - eCommerce Platform

    Developed the front end for the eCommerce website using AngularJS.

  • Ionic and Node.js - Food Recipe App with Social Networking

    Developed a recipe app with social networking from scratch, featured for iOS and Android using Ionic.
    Also, I took part in developing the back end using Node.js and developed unit testing scripts using Mocha and Chai.

  • eCommerce Platform

    Worked as one of the developers on this project as a full-stack developer.

    Used HTML, CSS, JavaScript, jQuery, Ajax, and PHP for the site.


  • Languages

    GraphQL, HTML5, JavaScript, TypeScript, CSS3, ECMAScript (ES6), SCSS, PHP
  • Frameworks

    Redux, Nuxt.js, React Native, Express.js, Next.js,, AngularJS, Ionic, CodeIgniter, Jest, Tailwind CSS
  • Libraries/APIs

    Vuex, React, Vue, REST APIs, jQuery, Node.js
  • Tools

    Git, Webpack, Cucumber, Jenkins, Mocha, Karma
  • Paradigms

    Agile Software Development
  • Storage

    MongoDB, PostgreSQL, MySQL
  • Other

    Mobile App Development, Front-end Development, Full-stack, Gatsby, Computer Engineering
  • Platforms

    Firebase, Amazon Web Services (AWS), Linux


  • Bachelor's Degree in Computer Engineering
    2007 - 2010
    Ajou University - Suwon, Korea


    JANUARY 2012 - JANUARY 2015
  • Business English Certificate
    Cambridge English
  • Project+
    APRIL 2011 - PRESENT
  • Security+
    MARCH 2011 - MARCH 2014

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