Profile image of jangjinmei728
Flag of China Dandong, China
Member since July 28, 2017
2 Recommendations


Online Offline
I have been developed many parts of software for over 11 years. Major areas of my expertise include: ✅ Mobile App development (iPhone, Android, Hybrid, Unity3D, Cocos, ...) ✅ Web development (PHP, Python, NodeJS, AngularJS, Wordpress, Shopify, Laravel, AWS, Heroku) ✅ Desktop Application (C/C++, C#, Java, QT, ...) ✅ Database (Firebase, MySQL, MS SQL, Oracle, SQLite, ...) I always aim to maintain a long-term relationship with my clients. Whether you've lost your original developer, need additional resources, or want a brand new app, I can step in and take over wherever you need. For now, I am a manager of a team that has 5 full stack mobile&web developers. We guarantee clients high-quality code and fast speed. We also provide free maintenance 6 months after finishing the project. Please kindly touch us here and get success from there! Thank you for reading.
$30 USD/hr
55 reviews
  • 100%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 22%Repeat Hire Rate


Recent Reviews

  • image of guyhamawi I need iOS Expert $90.00 USD

    “A very experienced developer, perfectly on time and very helpful, i highly recommend working with him and definitely the bestprice you will ever find.”

  • image of zehowgee Convert Website to iOS App File €73.00 EUR


  • image of aalshthria mobile application $200.00 USD

    “he is very kind and very professional on his work”

  • image of snapu Project for @jangjinmei728 IOS Development $1100.00 USD

    “I will hire again. He is fast and very professional. I presented him with the issue and he asked the right questions and is patient. He seems to work all the time and responds quickly. He is confident and his skills are unmatched. He meets all deadlines and if he says he is going to do something he does it and delivers on time. He does not want paid until the job is done. I can trust him. Will hire him again.”

  • image of badteacher1290 Project for Xiaoming Y. -- 2 $50.00 USD

    “it is like working with someone in-house. When Xiaoming doesn't have the answer to an issue he quickly uses his resources to find it. I will hire again.”

  • image of Famebooster I need a coins system for my app €110.00 EUR

    “Xiaoming is the best app programmer I met scince I am in this business. He did all the work on one day for a cheap price and completing complex tasks like a firebase-implementation or a user login system. He is a kind and trustworthy person with nice communication skills and a willingness to explain everything in detail. He made my app even better than i had it in mind. I recommend this guy to everyone who wants some high quality and fast work and I will also hire him again in the future.”


Senior Mobile and Web developer

Mar 2010 - Jun 2017 (7 years)

I have deleloped mobile and web in this company for 7 years. Since 2014, I was a leader of mobile solution team and made a lot of websites&mobile production using different framework in various platform. Since July 2017, I became a full time freelancer.


Bachelor of Computer engineering

2006 - 2010 (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.


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