Imagem de perfil de YouSheng
@YouSheng
Bandeira de China Shenyang, China
Membro desde 4 de maio de 2017
3 Recomendações

YouSheng

On-line Offline
✪ 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 Dólares/hora
35 comentários
6.8
  • 100%Trabalhos concluídos
  • 99%No Orçamento
  • 98%Pontualmente
  • 22%Taxa de Recontratação

Portfólio

Comentários recentes

  • imagem de Johannes T. Mobile development $3500.00 USD

    “The work with Jin was excellent, good communication, work delivered as expected. Will definitely hire him again for future projects”

  • imagem de dan24993 Project for Jin Y. $1500.00 USD

    “Definitely one of the best developers I've had the opportunity to work with. From the beginning to the end of the project he has been 100%. He knows the technology well, knows how to write cost fast and effective, and is great at communicating. He is an experienced, diligent and hard working programmer. He responds quickly to all requests and at all times conducts himself as a true professional. On a personal level there are few individuals that I have met in my life time that are as honest and trustworthy as Jin YouSheng. I highly recommend him to anyone who want to get the job done right, and I'll definitely hire him again!”

  • imagem de Justin T. Project for Jin Y. -- 5 $1600.00 USD

    “I have very much enjoyed my working relationship with Jin. Time after time he has impressed me with his work and speed. I will not be looking for any other developer anytime soon.”

  • imagem de Omaralawar Project for Jin Y. $200.00 USD

    “speaks good english and easy to communicate”

  • imagem de Maxxen iOS & Android App - Development €4500.00 EUR

    “It was a pleasure working with Jin. He not just delivers on time and budget, he also gave us good advices through the development process. After we changed some functions for the app he directly implemented it. The communication also went perfectly, he was always reachable and friendly. His long experience in development makes him to my number #1 choice when I have more projects to be done. Highly recommend Jin Y. to all!”

  • imagem de ABChelp Help me finish my App €376.00 EUR

    “Jin is an excellent programmer, we highly recommend Jin for his expert knowhow in Xcode! He is innovative and impulsiv, that meaning he will an answer quickly and work fast! Our work in abchelp as/corp. is to digitalise medical emergency care for very sick people, thank you Jin for saving lives with us! <3”

Experiência

Senior Software Engineer

Sep 2010 - Jun 2014 (3 years)

SoftWare Development, Service & Consulting and Technical Support.

Educação

Bachelor of Computer Engineering

2006 - 2010 (4 years)

Qualificações

Graduation certificate (2010)

Liaoning University

Graduation certificate of the Liaoning University

Publicações

Semantic validation of environmental observations data Environmental Modelling and Software.

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.

Certificações

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

Verificações

  • Conectado com o Facebook
  • Freelancer Preferencial
  • Pagamento Verificado
  • Telefone Verificado
  • Identidade Verificada
  • E-mail Verificado

Minhas habilidades principais

Pesquisar Freelancers similares