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Flag of China Dandong, China
Member since March, 2013
14 คำแนะนำ

Chance Software Developer

ออนไลน์ ออฟไลน์
Thank you for considering my profile. I have have been developing iOS & Android apps over 6 years. I can help you develop iOS , Android apps, Backend apis. My another major skill is web and mobile GIS application implementation. Most of my clients have been satisfied our job results. Here is one of reviews from my clients. - “Excellent developer. Fast, responsive and super impressive results” - I've started my professional experience as C/C++ developer in 2005. During the 4 years I developed a low-level system software for Windows/Linux platforms. In early 2009 I've set my eyes onto Apple devices and started developing mobile software. And I am working in GIS apps with a great GIS expert who has 10 years experiences. I am crazy in code quality - it makes me happy when I feel I do a perfect job. Also some of my personal projects I've shared to open source community. I can lead many developers for the project too. Looking forward to working with you and good luck with your project.
$40 USD/ชม.
157 บทวิจารณ์
  • 96%งานที่ทำสำเร็จ
  • 98%อยู่ในงบประมาณ
  • 100%ส่งงานตรงเวลา
  • 22%อัตราการจ้างซ้ำ



  • image of chenl2017 webpage/intranet developer $500.00 USD

    “Mr. Wu is very good at what he does and I would highly recommend to work with him. And also for somebody, who is not IT, he could explain everything in a clear and very understandable manner. The freelancer platform was challenging for customer communication, because so many channels are not allowed to use, i.e. skype, email etc.”

  • image of digitalwyndham Upgrade existing iOS application to be compatible with iOS 11 [Sealed]

    “Very professional and extremely skilled. Completed the project before deadline. Would definitely recommend and hire again”

  • image of DavePangaea bug fixes and new features added to existing app $4860.00 USD

    “Wu was able to finish several features and find a lot of bugs that other programmers were not able to find. I'm very impressed with his skills and will hire him again.”

  • image of objective1 Project for Wu L. $150.00 USD

    “Exceptionally professional as ever. Must be the best iOS developer on freelancer.”

  • image of Tsuole Server Features for Map Data $450.00 USD

    “Wu was diligent, understanding and was willing to work with me until he understood exactly what needed to be done even though I wasn't completely clear from the get-go. He has mastery over his area of expertise, and helped me stay away from areas he felt would hurt my project later down the line. Awesome!”

  • image of thenewcookhouse I would like to hire an App Developer $2750.00 AUD

    “Great so far”


Iphone Developer

Mar 2009 - Jan 2013 (3 years)

I devloped BillBoard(utility app),CloudRider(game) in six month. And I joined the research of Computer Vision.

Mobile Developer/Team Lead

Jul 2007 - Jan 2009 (1 year)



2002 - 2006 (4 years)


C++ Fundamentals (2010)



A new edge detection algorithm for flame image processing

Digital image processing is playing an increasingly important part in imaging based flame monitoring systems. A crucial step in flame image processing is to detect the flame edge, a dividing boundary between the area where there is thermo- chemical reaction and those without. The determination of flame edges is a precursor to flame image processing and measurement of flame parameters. Several known edge detection methods have been tested to identify flame edges but the results achieved are disappointing.


  • Numeracy 1
  • Preferred Freelancer Program SLA
  • Objective C Level 1
  • iPhone Development 1
  • US English Level 2


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