covernal

100 reviews

@covernal

Shenyang, China

Member since July 18, 2014

19 Recommendations

covernal

Online Offline

⭐Excellent Mobile App &Web Developer⭐

Hi, I have been doing Mobile & Web development for the past 11+ years, I have plenty of experience and a great eye for software development. I had completed all job perfectly on Freelancer.com. I am proud of my 100% Completion Rate!!!. I am able to offer competitive prices and deliver great work. I would like to work with you. I will provide the best product to you as you wanted. My Skills are : - Programming Languages - Objective-C / Swift 1.0 ~ 4.1 / Java /React-Native,Js/ C++ / C# / PHP / Angular. - Mobile Programming * iOS/Objective-C/SWIFT * Xamarin ( MVVMCross for multi-platform) * Hybrid programming (Cordova, Ionic, Accelerator Titanium) * Android SDK/NDK * BlackBerry * Qt Creator 5.4 (Cross platform) - Software Engineering / Architecture * Windows / Mac OS x / Linux Software * Image processing * E-Learning System - Web * Server management * Popular PHP framework * Bootstrap & * * MySQL/SQLite Thanks for your reviewing.

$50 USD/hr

100 reviews

8.1

98%Jobs Completed
99%On Budget
95%On Time
18%Repeat Hire Rate

Portfolio

Businessfriend View
Booking System. View
iWrite Math View
Bil Taxi View
PushFitness View
Fency View
VDict View
Vocaby View

Recent Reviews

Build an easy to use bot to auto send Twitter direct messages, $50.00 USD
“It was great to work with Ying. He went out of his way to do above and beyond quality of work. The best freelancer I have used. %100 will use again”
chomane1982 2 months ago
Write an Android application £248.40 GBP
“It was an absolute pleasure, Ying Y is amazing. I would recommend him beyond words. - Communication is outstanding. Any time I needed him, he would reply quickly. - He really understands the project and perfects it. - He works really hard in getting you the best product. He said 7 days for completion for me and then did it in 2. - Very good English speaking. - He really cares about the customer and went beyond expectations for me. Definitely worthy of his reputation and I will certainly be using his services again. Hire this man!!!”
Bbredtob 2 months ago
simple mobile app with immediate complete $250.00 USD
“Wonderful work”
limsophea95 3 months ago
Improve current iOS app $155.00 USD
“Outstanding work, will definitely use again :)”
Olass 3 months ago
Improvement on iOS app $140.00 USD
“Perfect :)”
Olass 4 months ago
ionic 3 angular 4 ios & android photo and video picker from gallery and take photo and video from front and back camera $555.00 USD
“Ying Y. did the job quality and on time we will work again”
ug0 4 months ago

Experience

Software engineer

ChangYi Ltd Group May 2006 - Oct 2010 (4 years)

Education

PHD Computer Engineering

Shenyang University of Technology, China 2003 - 2007 (4 years)

Certifications

US English Level 1
90%
Preferred Freelancer Program SLA
89%
PHP Level 1
83%

Verifications

Facebook Connected
Preferred Freelancer
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Payment Verified
Phone Verified
Identity Verified
Email Verified

My Top Skills

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covernal