Profile image of kongxiangjia
Flag of China Dandong, China
Member since August 21, 2012
23 Recommendations


Online Offline
I have over 8 years of development and implementation experiences over 180+ apps from small applications to large scale & complex enterprise solutions . My goal is to 130% fulfill the expectations of my clients – the extra 30% being the anticipation of problems or adding ideas that my clients may not have realized. You will find me easy to communicate with to an extent by which you may be surprised, but that is because I believe only a dedicated connection with my employer can lead to truly extraordinary creations. I don't know "impossibility" during development. Services: * Daily or weekly updates during development * Deliver clean and robust code, upload on app store after development * Maintenance and any updates free after development
$50 USD/hr
150 reviews
  • 95%Jobs Completed
  • 99%On Budget
  • 99%On Time
  • 16%Repeat Hire Rate


Recent Reviews

  • image of Christopher T. Service App for Field Operatives £1500.00 GBP

    “Li is very easy to work with and delivers a very high quality of work. She is also very understanding of delays and extremely easy to reach, consistent with updates and more than happy to help make adjustments on the way. This is my first time using Freelancer and it has been a fantastic experience thanks to Li.”

  • image of Alan R. Amazon Alexa project $1300.00 USD

    “I am very happy with the work Li did. This was my first project and she was very patient with me. I think the quality and timeliness of her work is outstanding and I will definitely use her again.”

  • image of Camilo A. Website Project for kongxiangjia [Sealed]

    “"kongxiangjia did an excellent job coding my Website project. She showed a high level of knowledge and expertise. Kongxiangjia communicated constantly, letting me know how progress was being made. She was able to take my design and code it into what I wanted with minimal interaction required by me. We will definitely be using Kongxiangjia for other projects. "”

  • image of Camilo A. Project for Li B. [Sealed]

    “Everything went well, just changing a few thing and making updates to a website, implementing Google Analytics and a few other characteristics. She is connected pretty much all the time, this make it easy to comunicate and work through projects”

  • image of Phil G. Build a simple AR/MR HTML/js page $1500.00 USD

    “Excellent experience, developed an AR app quickly and efficiently with regular communication.”

  • image of Camilo A. Second Proyect Web Design $121.00 USD

    “I was working on a website services portal, so far the exprience has been very good, no problem, we work a few adjustment to the original requirements without any inconveniences. I will hire her again for next processes”


Mobile Developer/Team Lead

Jul 2007 - Jan 2012 (4 years)

I have developed android and IOS apps, website at this company for 5 years. I devloped BillBoard(utility app),CloudRider(game) in six month. And I joined the research of Computer Vision.



2002 - 2006 (4 years)


C++ Fundamentals (2010)




Image tampering detection based on stationary distribution of Markov chain

With the development of image editing software such as Adobe Photoshop, digital image can easily be manipulated and hardly detected by human eyes. If we take this issue for granted, it may eventually be harmful for our digital world, especially for the credibility of news coverage. Many researchers have worked on image forensics and a number of image tampering detection techniques have been proposed in recent years.


  • US English Level 1
  • Preferred Freelancer Program SLA
  • Numeracy 1


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