Michael Jin

Michael Jin

Mentor
Rising Codementor
US$15.00
For every 15 mins
ABOUT ME
React/React Native/Python developer
React/React Native/Python developer

As a Senior Web/Mobile Developer, I have rich knowledge and hands-on working experience in Web/Mobile application development!

My expertise has been covered in building SPA/PWA products based on MERN stack technologies.
Mobile application development based on React Native is also my very experienced field.

My special characteristics

  • Highly optimized solution, rapid project adaptability
  • Perfect communication, professional teamwork
  • Overlap 8+ hours in PST, flexible working hours

Frontend

  • React/Redux, Next, Gatsby, Angular, Vue, React Native
  • Javascript, jQuery, ES6, Typescript,
  • HTML5/CSS3, Bootstrap, SASS/LESS
  • Webpack, Gulp, GraphQL

Backend

  • Node.js, Express.js, Nest.js, Koa.js
  • Python, Django, Flask
  • PHP, Laravel, Symfony, WordPress

Database

  • MySQL, PostgreSQL, NoSQL, MongoDB
  • DB Design and SQL programming
  • DB Administration and Optimization

Other Skills

  • Making stable projects with Unit Testing
  • Version control with git, git-flow
  • Project Management with JIRA, Asana, Trello
  • Project Deployment with CI/CD
  • Hands-on DevOps skills in AWS, Azure, Google Cloud
  • Familiarity with high SEO performance
  • Experience in REST API design
  • Deep knowledge about design patterns

Looking forward to having further discussion about your business requirements.
Thanks

Chinese, Korean, English
Eastern Time (US & Canada) (-05:00)
Joined October 2020
EXPERTISE
6 years experience
- SPA/PWA development based on React.js and Next.js - State management system development based on Redux-saga, Redux-thunk, Mobx, and Red...
- SPA/PWA development based on React.js and Next.js - State management system development based on Redux-saga, Redux-thunk, Mobx, and Redux-apollo. - Static site development using Gatsby, Contentful, and Prismic
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5 years experience
- Hybrid mobile application development based on Expo, and React Native - Deployment, maintenance based on Bitrise, Fastlane to Google Pl...
- Hybrid mobile application development based on Expo, and React Native - Deployment, maintenance based on Bitrise, Fastlane to Google Play Console, and TestFlight - Backend infrastructure development based on Google Cloud System and AWS services
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7 years experience
- Optimized service platform development based on Express.js, and MongoDB - Backend infrastructure development that is consisted of lots ...
- Optimized service platform development based on Express.js, and MongoDB - Backend infrastructure development that is consisted of lots of microservices - Design highly performance-optimized API consuming model based on GraphQL and Knex.js
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9 years experience
- Rich knowledge and strong working experience with javascript for 10 years - Variable working experience using OOP design pattern and pa...
- Rich knowledge and strong working experience with javascript for 10 years - Variable working experience using OOP design pattern and paradigm - JavaScript-based full-stack development experience in 10+ enterprise company
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8 years experience
- Build well-organized table relationships using MySQL, and PostgreSQL - Keep the highly-optimized data manipulation/analysis speed based...
- Build well-organized table relationships using MySQL, and PostgreSQL - Keep the highly-optimized data manipulation/analysis speed based on the suitable data splitting, keyword indexes - Expertise in designing/building data broadcasting system based on streaming data service using MongoDB
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7 years experience
- Built well-optimized data analysis system based on Django, Numpy, and Pandas - Built customer conversion rate analysis system, instrume...
- Built well-optimized data analysis system based on Django, Numpy, and Pandas - Built customer conversion rate analysis system, instrument sale data manipulation system based on Google, Twitter data mining APIs, and Pandas and Jupiter
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8 years experience
- Implemented variable data visualization systems based on google maps, Mapbox, and MapGL techniques - Built the sophisticated data analy...
- Implemented variable data visualization systems based on google maps, Mapbox, and MapGL techniques - Built the sophisticated data analysis system based on google analytics data and BigQuery - Built simplified backend infrastructure based on Firebase, FireStore, Real-time database.
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REVIEWS FROM CLIENTS

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EMPLOYMENTS
Senior Node/Vue Engineer (Remote)
REFAIRME
2020-08-01-2020-10-01
● Worked as a full-stack Vue/Node developer with the Poland IT team for several weeks based on the contract and contributed to MVP versio...
● Worked as a full-stack Vue/Node developer with the Poland IT team for several weeks based on the contract and contributed to MVP version product development ● Implemented new features based on the issue ticket and enhanced productivity by fixing errors ● Provided the server refactor option based on the automated configuration setup ● Developed 2~3 pages based on Vue components and Vuex and integrated them into the app and provided the interaction module between them
Node.js
MongoDB
Vuex
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Node.js
MongoDB
Vuex
Vuetify
Vue.js
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Full Stack Django/Gatsby/React Native Developer
N​UAGE
2020-03-01-2020-07-01
● Design and implementation of the 99.99% up-time REST API for the mission-critical progressive web application, that provided critical c...
● Design and implementation of the 99.99% up-time REST API for the mission-critical progressive web application, that provided critical connectivity channel for distributed functionality and increases system cohesion keeping manageable code complexity ● Documented solution architecture for the critical customer-facing portal reducing the TTM (time-to-market) by 55% ensuring high code maintainability ● Reduced signup drop-offs from 65% to 15%, increased user-engagement by 40%, and boosted content generation by 15%, through a combination of user interviews and A/B-testing-driven product flow optimization
Python
Django
MongoDB
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Python
Django
MongoDB
Firebase
React
Google Cloud Platform
React Native
Gatsby
Next.js
Javascript / typescript
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Senior Full Stack Engineer
PAREXEL
2018-03-01-2020-04-01
● Experimented with the latest front-end frameworks for the business-critical progressive web application that helped to achieve 97% test...
● Experimented with the latest front-end frameworks for the business-critical progressive web application that helped to achieve 97% test coverage and increase development efficiency on the project ● Refactored the legacy code base of the mission-critical mobile application significantly improved code maintainability and decreased deployment time by 57% ● Managed a 5-member cross-functional (product, engineering, sales, support) team and coordinated with six senior business partners toward the successful launch of an e-commerce platform ● Design and configuration of the fully automated CI/CD lifecycle for the high-profile single page application reducing manual deployment intervention by 97%
HTML/CSS
PHP
MySQL
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HTML/CSS
PHP
MySQL
Angular
CodeIgniter
PostgreSQL
Laravel
TypeScript
Symfony
JavaScript
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PROJECTS
CRUISE (Automatic Vehicle Company Website)View Project
2020
- Implement one template page based site generation engine based component generators and contentful resource - Built a robust contentfu...
- Implement one template page based site generation engine based component generators and contentful resource - Built a robust contentful migration system based bash script
GraphQL
Gatsby
Contentful CMS
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GraphQL
Gatsby
Contentful CMS
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FIATLEAK (CryptoCurrency SAAS Platform)View Project
2020
- Implemented the docker based project development environment - Implemented google map feature based PReact and google Mapbox - Built th...
- Implemented the docker based project development environment - Implemented google map feature based PReact and google Mapbox - Built the transaction broadcasting system based web socket
MongoDB
Google Maps
Amazon S3
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MongoDB
Google Maps
Amazon S3
Socket.IO
React
GraphQL
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