Profile image of Jincheng921
@Jincheng921
Flag of China shenyang, China
Member since September, 2013
18 Recommendations

JinCheng

Hello I have rich experience in iOS & Android for 6+ years. For last 5 years I have worked in the sphere of mobile applications development. Also I have Bachelor's degree in Computer Science. My focus is on delivering high quality work to the clients. My strong skills includes as follow. + iOS 7,8 development(iPhone & iPad) + Swift; + Android 2.3 - 5.1 development; + GPS, Google Map, Location Tracking + Front end and Back end for mobile services on PHP, .Net, Parse; + Payment Gateway(Stripe, Paypal, Braintree) + Social Networking (Facebook, Twitter, LinkedIn) + Github, Bitbuket + XMPP, Openfire, Ejabberd + Social Networking API - Facebook, Twitter, LinkedIn, Youtube API My communication and working time will be flexible to meet your requirement. If you need a good and high quality mobile application, I'm glad to help you. Thank you for your attention. Regards,

$40 USD/hr
23 Reviews
6.8
  • 89%Jobs Completed
  • 96%On Budget
  • 96%On Time
  • 26%Repeat Hire Rate

Recent Reviews

  • image of Moukalati Finish App Coding both iOS and Andriod setup $4307.00 AUD

    “Excellent Freelancer, We worked on a ios application, she has very good communication skills and very professional. i would highly recommend hiring jin. i will be hiring again for Android version.”

    Moukalati Flag of Australia 1 month ago.
    • Android
    • Hire me
  • image of grosville iOS custom camera: plugin cordova $1406.00 USD

    “Good job !”

    grosville Flag of France 1 month ago.
    • Mobile Phone
    • iPhone
    • Windows Phone
  • image of rhbanme Xcode (Swipe to Delete) fix via team viewer $19.00 USD

    “Great freelancer. Fixed my problem quickly.”

    rhbanme Flag of United States 1 month ago.
    • Mobile Phone
    • iPhone
  • image of SMPPSMSC Mobile Phone Management platform $1600.00 USD

    “The Software development continues. Final evaluation will come after 100% release.”

    SMPPSMSC Flag of Cote D'Ivoire 3 months ago.
    • Java
  • image of Querini Phone Call Recorder [Sealed]

    “It increased the value of the project due to the difficulty of making what I asked. In the middle of the project she said the app that I asked it was impossible do what I asked for in the beginning. She offered to do some thing that I don't need or wanted and not what I had requested in the beginning. In the end I lost my money.”

    Querini Flag of Brazil 4 months ago.
    • Mobile Phone
    • iPhone
    • Android
    • Windows Mobile
  • image of sween87 Write a picture messaging application with filters $3000.00 USD

    “Great developer! Enjoy working with Jin!”

    sween87 Flag of United Kingdom 6 months ago.
    • C Programming
    • Mobile Phone
    • iPhone
    • Android
    • Objective C

Experience

Allmost IT software subject

Feb 2011

I am not limited in various kinds of mobile apps and recent tools & libraries. Below you can see the parts which I have good experiences in. - Xcode/ ObjectiveC, iOS SDK, iOS6/7/8, iPhone4 & iPhone5, iPad3 & iPad Mini. - Android Native SDK, PhoneGap, Sencha Touch, Corona SDK. - Webservice Backend API development using PHP, JSON and/or XML. - Great UI/UX design and customization. - Social Networking Mobile App & Web Backend development, Social Media Integration such as Twitter, Facebook,

Education

Bachelor of computer science

2007 - 2011 (4 years)

Certifications

doctor degree (2011)

I have doctor degreee in information fields. My major artificial intelligence including pattern recognition and signal processing.

Publications

About feature extraction way in pattern recognition

This book is about feature extraction in pattern recognition. This book consist of three chapter. first : history in pattern recognition. second : feature extraction method third: application

Badges

  • The Economist

    Complete 10 projects on budget.
  • Insta-Hire

    Use Hire Me to employ a Freelancer.
  • Quick Pick

    Award your project within 24 hours of posting
  • The Giver

    Award your project to a Freelancer.
  • The Prospector

    Post your first project.
  • The Cap-tain!

    Reach the level 20 level cap!
  • Smooth Operator

    Complete 10 projects on time.
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • Mover and Shaker

    Create 50 Milestones.
  • Millenium Proposal

    Bid on 1000 projects.
  • Feedback Guru

    Receive 10 reviews
  • US English Qualified

    Pass the US English Exam (Level 1)
  • US English Qualified

    Pass the US English Exam (Level 1)
  • The Critic

    Post 10 Reviews.
  • The Spartan

    Bid on 300 projects.
  • Smart Money

    Create 10 Milestones.
  • The Biller

    Create an hourly invoice.
  • All Star

    Receive a 5-star rating for a project.
  • The Adventurer

    Complete your first project.
  • Warren Buffet

    Complete a project worth over $1000 USD.
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Seeker

    Bid on 20 projects.
  • Employer of Choice

    Attract over 100 bids for your project.
  • Fast Responder

    Bid within 2 minutes of a project being listed.
  • The Perfectionist

    Edited a bid.
  • Pro-Profile

    Complete your Profile 100%.
  • Mover and Shaker

    Create 50 Milestones.
  • Millenium Proposal

    Bid on 1000 projects.
  • Warren Buffet

    Complete a project worth over $1000 USD.
  • The Economist

    Complete 10 projects on budget.
  • The Cap-tain!

    Reach the level 20 level cap!
  • Smooth Operator

    Complete 10 projects on time.
  • The Spartan

    Bid on 300 projects.
  • Smart Money

    Create 10 Milestones.
  • All Star

    Receive a 5-star rating for a project.
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • Employer of Choice

    Attract over 100 bids for your project.
  • Insta-Hire

    Use Hire Me to employ a Freelancer.
  • Quick Pick

    Award your project within 24 hours of posting
  • The Giver

    Award your project to a Freelancer.
  • The Prospector

    Post your first project.
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • Feedback Guru

    Receive 10 reviews
  • US English Qualified

    Pass the US English Exam (Level 1)
  • US English Qualified

    Pass the US English Exam (Level 1)
  • The Critic

    Post 10 Reviews.
  • The Biller

    Create an hourly invoice.
  • The Adventurer

    Complete your first project.
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Seeker

    Bid on 20 projects.
  • Fast Responder

    Bid within 2 minutes of a project being listed.
  • The Perfectionist

    Edited a bid.
  • Pro-Profile

    Complete your Profile 100%.

Exams

  • Numeracy 1
    100%
  • Freelancer Orientation
    80%
  • US English Level 1
    85%

My Top Skills

  • Mobile Phone 17
  • iPhone 17
  • Android 11
  • iPad 4
  • Java 3
  • PHP 1
  • Website Design 1
  • Graphic Design 1
  • Objective C 1
  • MySQL 1
  • Project Management 0
  • SEO 0
  • Ruby on Rails 0
  • Shopping Carts 0
  • Algorithm 0
  • C# Programming 0
  • Software Architecture 0
  • Google App Engine 0
  • Cocoa 0
  • Mac OS 0
  • Finance 0
  • VoIP 0
  • ERP 0
  • Samsung 0
  • C++ Programming 0
  • Geolocation 0
  • GPS 0
  • Apple Safari 0
  • Face Recognition 0
  • XMPP 0
  • Game Development 0
  • SQLite 0
  • RESTful 0
  • Angular.js 0
  • Internet Security 0
  • Swift 0
  • Git 0
  • Instagram 0

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