I am enjoying work and
making my own happiness.

About

Strong Experienced full-stack developer with a passion

I am a rich experienced full-stack software developer. I have 8+ years of experience in website development. My primary skill set includes React + Redux on the client and NodeJS (Express) on the backend. I have strong expertise in the Software development life cycle from modeling to deploying.

    Skills:
  • - HTML5/CSS3/Javascript/jQuery
  • - NodeJS, Express
  • - PHP, Laravel
  • - React, Angular
  • - Bootstrap, Material-UI, Ant-Design, TailwindCSS, etc
  • - MySQL, MongoDB
  • - GCP, Firebase, AWS
  • - Providing Several REST API integrations
  • - Git, GitHub, Bitbucket
  • - Chrome Extension
  • - Cocos2D, Cocos Creator
  • - CMS(Wordpress, Squarespace)
    My working ethic:
  • - I think responsibility is the key to becoming the most successful freelancer.
  • - I provide free and quick service for fixing bugs and maintenance even after payment.
  • - I will work according to the customer's timezone.
  • - I love to communicate with clients for clear requirements and complete implementation.
  • - I deliver the fastest reliable result and want to get paid on time.

With these and other technologies, I've worked on about 20 projects of various complexity and gained $190k+ via online freelancing. My best goal is to make a great relationship with many developers and clients. I hope to cooperate with more experts and recruiters in the future.

Current Focus: React.js // Angular // Nodejs

Experience

Full / Part time Freelancer
  • Mainly working as a freelancer who is specialized in web development.
  • Worked on Upwork.com or Freelancer.com
  • Contributed to about 60+ several scaled projects and totally made about $190k from the remote jobs.
  • With me, the clients will enjoy working and always satisfy with the products, I am sure.
Nov 2018 - Present
Web / Software Developer
Web based Product
  • Contribute core features across entire stack (20k+ lines of code, 250+ pulls)
  • Lead front-end development, creating and documenting app-wide design system
  • Oversee transition from page-based styles to modular component styles
  • Guide best practices around accessible, semantic UI/UX
  • Tools: Nodejs, MySQL // React, Redux , JS, jQuery // Sass // HTML, JSX, Haml
Accomplishments
  • Dramatically increased speed of UI development using atomic, scalable CSS
  • Built tool to convert HRIS data into user accounts to simplify onboarding
  • Implemented inline @tagging feature to increase app share-ability
Aug 2017 - Nov 2018
Web Developer
  • Customized 10+ web apps based on the requirements from the clients.
  • Designed visual branding, wrote copy, and developed website
  • Provided responsive designs for 5 static websites.
Apr 2016 - Jul 2017
Front-End Developer
  • Mainly used TailwindCSS and bootstrap to build Front-End UIs.
  • Built 4 CMS websites using Wordpress and 2 websites using Squarespace.
  • Built many javascript and jQuery functional parts in order to embed them to several web apps.
Jul 2015 - Feb 2016
Front-End Web Developer
  • Contributed as a frontend developer to the building of 4 websites.
  • Learned about several UI libraries like Bootstrap, W3, Ant-design, etc.
  • Started building chrome extensions and launced the first 3 extensions(The first one was New Tab Extension).
May 2014 - Jul 2015

Projects

Screenshot of Envoy web app
Envoy

Web Application for Transport Marketing Business.

Accomplishments
  • Node.js backend
  • React Material-UI frontend
  • Redux-thunk API
  • Database MySQL
  • AWS Amplify ElasticBeanstalk deployment
Screenshot of Callscribe web app
Callscribe

Callscribe service app using cloud services.

Accomplishments
  • React Bootstrap Ant-Design frontend
  • GCP Firebase serverless
  • Redux-Saga API
  • Implemented liking functionality
  • Client-side-rendering via AJAX
CHATalk service app
CHATalk

CHATalk service app using MERN stack.

Accomplishments
  • Backend Node.js
  • Frontend React/Redux-Saga
  • Designed in Bootstrap/Material-UI
  • Javascript input validation
Code Island logo
Code Island

Online headquarters for the local Code for America brigade in Rhode Island.

Accomplishments
  • Integrated “Next Meeting” via Meetup API
  • Developed CSS and JS responsive menu
  • Created member list via GitHub API
  • Refreshed branding and layout
  • Refactored all existing code (Jekyll)
Cute kitten
William Group

The introduction website for William Group - award winning builders of high-end architectural homes.

Accomplishments
  • Squarespace CMS
  • Image upload with AWS
  • jQuery Masonry effect
  • User Authentication with Devise
Skate boarder catching air on a half pipe
Skate Something

Mobile-focused web app where users can explore, collect, and share skate spots.

Accomplishments
  • Front-end development in Bootstrap
  • Contributed creative strategy and UX
  • Built dynamic templates using Jade
  • Worked with MVC framework, Node server
Modern Extension logo
Modern Tabs

Chrome Extension customizing new tabs with modern backgrounds.

Accomplishments
  • Chrome Extension building
  • Native Javascript geolocation
  • Dynamic CSS color coding
Screenshot of Sun tabs Extension
Sun Tabs

Chrome Extension customizing new tabs with sunshine backgrounds.

Accomplishments
  • Chrome Extension building
  • Native Javascript geolocation
  • Dynamic CSS color coding
Chandon logo
Custom Social Feed

AJAX Twitter and Instagram feed of specific #hashtag posts.

Accomplishments
  • Fully customized jQuery plugin
  • Integrates Twitter and Instagram API
  • Matches Chandon's exact branding
  • Built into custom Tumblr theme
Mark Jin playfully posing with face half covered by laptop
AdoreBeauty

Shopify with Excellent design / team collaboration

Accomplishments
  • Vue Nuxt script
  • 22 senior developer during the development
  • Hours of fun!
Cidewalk logo
Cidewalk for Etsy

UI redesign of the popular mobile ad platform, styled for Etsy users.

Accomplishments
  • Restyled UI, design, and branding
  • Reorganized user process and flow
  • Built with Angular and Bootstrap
  • Original & Redesign
Brownborg Studios logo
Website Portfolio

Over a dozen powerful, easy-to-use CMS websites built for local and international clients.

Accomplishments
  • Customized themes and plugins
  • Wordpress, Squarespace & Tumblr
  • Fully responsive designs
  • Unique admin experiences

Skills

HTML

HTML5
JSX
Haml
Jade
Jekyll
...

CSS

CSS3
SASS
Bootstrap
Material-UI
Ant-Design
...

Javascript

React
jQuery
Angular
Node
Vue
...

Back-End

Express.js
Laravel
PostgreSQL
MongoDB
Mysql
...

Build Tools

Webpack
Gulp
Grunt
Bower

CMS

Wordpress
Tumblr
Squarespace
Shopify
Wix
...

Other

Github
Heroku
Photoshop
Final Cut Pro
Hybrid
...

Education

University of Hong Kong Science and Technology

  • BCompSc
  • Apr 2010 ~ Mar 2014

I started learning computer science and web development here. I liked computer so much from my childhood. So I thought the education here was so good fit to me. I studied hard on my way and tried to be prepared enough to be a web developer and computer scientist. I think it was satisfied to be at this university.

Contact

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Email Mark Jin
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