Imagen de perfil de YouSheng
@YouSheng
Bandera de China Shenyang, China
Miembro desde el 4 de mayo de 2017
3 Recomendaciones

YouSheng

En línea Desconectado
Senior Mobile(Native, Hybrid) & Website Developer
✨ 100% SATISFACTION & BEST QUALITY ✨ Main Expertise; - Design and develop Native iOS/Android applications using Swift, Obj-C, Java - Hybrid app development using React native, Xamarin Native & Forms, Ionic - Expert in OOP, Multi-Threading, Client/Server Programming, Database Programming, Networking - Building backend service using Php(Laravel, Codeigniter), Node.JS, Python. - Database Programming (MySQL, Sqlite, Realm, MongoDB, Dynamo, PostgreSql) - Social Media Integration, Geo-Location, GPS tracking, Payment gateway integration. - Cloud Backend service integration such as Firebase, AWS, QuickBlox, etc - Image/Video processing using OpenCV, OpenGL, 3rd party plugins. - High Web development skill in HTML5, Javascript, BootStrap, Php, Angular. - Server Management (AWS EC2, Digital Ocean, Heroku) - Source Version Control(Git/Bitbucket/SVN and etc) - Task/Team Management tool (Github, Trello, Jira, Slack) - Bug tracking system(Instabug, Bugsnag)
$50 USD/hr
45 comentarios
7.4
  • 100%Trabajos finalizados
  • 100%Dentro del Presupuesto
  • 99%A tiempo
  • 16%Tasa de recontratación

Portafolio

Comentarios recientes

  • imagen de Kendrick S. food sector phone application $1000.00 USD

    “Very open, speedy and prompt communication. Good visual designs and made exactly what was described.”

  • imagen de Justin W. Make some Changes to an App -- 2 $1555.00 USD

    “Great product faster than expected.I will be using him on all future app projects”

  • imagen de Kasey C. Develop mobile app $7000.00 AUD

    “Jin did an amazing job developing my app. He worked very fast and was easy to communicate with. Very happy with the end project!”

  • imagen de Rui F. Front End Custom Native App (IOS and Android) $5250.00 CAD

    “Jin Y. is fast and efficient. Excellent knowledge of backend and frontend app development. I would definitely recommend anyone to work with him. Excellent Work! :)”

  • imagen de Hussam J. QR code apps $200.00 USD

    “good price”

  • imagen de Code R. Build a mobile app backend and first stage native for iOS and Android $1850.00 USD

    “Jin Y. is an excellent professional, gave very good feedback and suggestions, great communication, and I can only recommend him for anyone who wants the best freelancer out there.”

Experiencia

Senior Software Engineer

TopCMM Software Corp. Sep 2010 - Jun 2014 (3 years)

SoftWare Development, Service & Consulting and Technical Support.

Educación

Bachelor of Computer Engineering

Liaoning University, China 2006 - 2010 (4 years)

Calificaciones

Graduation certificate (2010)

Liaoning University

Graduation certificate of the Liaoning University

Publicaciones

Semantic validation of environmental observations data Environmental Modelling and Software.

j.envsoft

In this paper, we focus on one such language, the Water Data Transfer Format (WDTF), and present an approach for validation of WDTF data contents. We show that by using Semantic Web technologies, we can express those constraints not captured by WDTF and check their consistency with respect to data through a query reduction technique that allows existing reasoners to be used for data validation.

Certificaciones

  • iPhone Development 1
    100%
  • US English Level 1
    100%
  • Android 1
    97%
  • PHP Level 1
    95%
  • Preferred Freelancer Program SLA
    94%

Verificaciones

  • Conectado a Facebook
  • Freelancer Preferente
  • Pago verificado
  • Teléfono verificado
  • Identidad verificada
  • Correo Electrónico Verificado

Mis habilidades principales

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