Profile image of polarjin2017
Flag of China Dandong, China
Member since April 22, 2017
25 Recommendations


Online Offline
✔ Professional Web Developer 1) Wordpress/Shopify/Magento/Bigcommerce/Laravel/Core php /Odoo( 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
$30 USD/hr
253 reviews
  • 94%Jobs Completed
  • 90%On Budget
  • 97%On Time
  • 10%Repeat Hire Rate


Recent Reviews

  • image of Angus S. Python Code Trouble Shooting $60.00 AUD

    “Complicated problem to work with but quickly solved. Well done.”

  • image of Sonam S. JAVA application using an interactive GUI $140.00 AUD

    “provided the work before time.”

  • image of Cody Karl A. I need another Excel expert $170.00 USD

    “Amazing Work once again... elegant short code....very effective communication....I submitted my project to Guangjun Z. directly this time around and I am completely satisfied with his work!”

  • image of Lucy B. Coding amendment for website - big commerce £50.00 GBP

    “Second time using Guangjun Z and he delivered a great job! Thank you!!!”

  • image of Cody Karl A. I need an Excel expert $170.00 USD

    “Incredible! Reliable, Clear. Earnest Communication. My task was stressing me out for a week and I could not figure out a remedy, this man wrote a seamless program within 24 hours, was willing to negotiate price, took time to clarify my exact needs and preferences, sent photos highlighting what was possible and he delivered exactly as promised. I will submit my work directly to Guangjun Z. in the future. Fantastic work!”

  • image of Maria V. Make spreadsheet template compatible with Magento 2.3.0 Product Import function $250.00 USD

    “Very responsive developer.”


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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