Profile image of polarjin2017
Flag of China Dandong, China
Member since April 23, 2017
25 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
$30 USD/hr
256 reviews
  • 94%Jobs Completed
  • 90%On Budget
  • 97%On Time
  • 10%Repeat Hire Rate


Recent Reviews

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    “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. compare 2 lists of dates and minutes worked in PHP for redundancy $100.00 USD

    “very good job, I will hire him again shortly.”

  • image of Yong K. Application for Excel Sync $55.00 USD

    “He is great worker, clean data nice works”

  • 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!”


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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