Profile image of polarjin2017
Flag of China Dandong, China
Member since April 23, 2017
26 Recommendations


Online Offline
✔ Professional Web Developer 1) Wordpress/Shopify/Magento/Bigcommerce/Laravel/Core php /Odoo/Ruby On Rails/Django( Front/BackEnd Coding ) 2) Bootstrap/PHP/MySql/Ajax Site 3) API Integration 4) ASP.NET(C#/VB) MVC 5) React/Node/Angular/Flask/Django/Vue JS 6) MongoDB, PostgeSQL, DynamoDB, MySql, MS Sql, Sqlite etc. 7) Apache Cordova/Ionic ✔ Professional Desktop/Xamarin/Flutter Developer 1) C#/VB/JAVA/PYHON 2) Excel/Access/Word/PowerPoint with VBA 3) Xamarin forms(Android/IOS/WinPhone) ✔ Professional Scrap Developer 1) Selenium/Scrapy/BeautifuSoup 2) Excel Macro IE Scrap ✔ Google App Script 1) Google Sheets/Slides/Doc/Drive API ✔ Automation 1) Auto checkout bot 2) Auto filling bot 3) Automated Action
$50 USD/hr
261 reviews
  • 94%Jobs Completed
  • 91%On Budget
  • 97%On Time
  • 11%Repeat Hire Rate


Recent Reviews

  • image of Ken B. Fix the notification code on a very old website $650.00 USD

    “He was great to work with. Very professional”

  • image of Ian B. Mailchimp Data Integration $500.00 AUD

    “Professional, courteous and very attentive to detail. Delivered exactly what I wanted, worked across the weekend. Could not have asked for more.”

  • image of Richard L. Project for Guangjun Z. -- 19/10/22 21:28:07 £120.00 GBP

    “Did exactly what I needed, quickly and correctly.”

  • image of Phillip A. XML parser - file re-arranger £185.00 GBP

    “Hi, Guangjun, respected my deadline and really worked extremely hard for a tight deadline which was greatly appreciated. He is also very easy to communicate with and understands the points I raised in communication very well. An excellent freelancer that I will be working with again. I only wish my own management of projects was as good as his!”

  • image of Sophie E. Basic Java Program $205.00 AUD

    “Fantastic and skilled freelancer. I needed a quick turnaround on a new java program and he asked the right questions at the beginning to find out everything he needed to know to deliver a file which required minimal revisions and changes. Highly recommend.”

  • image of Josh C. Project for Guangjun Z. $100.00 USD

    “pleasure doing business with you again.”


Good skills

Oct 2010

Computer Science & Network Researcher.



2007 - 2010 (3 years)


Barchelar of Beijing Technology and Business University (2013)

Beijing Technology and Business University

Computer industry in the world.


Computer industry in our country

I have studied about computer industry and internet technology and published one paper.


  • Python Level 1
  • WordPress
  • US English Level 1


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