Image de profil de topdev19
Drapeau de China Dandong, China
Membre depuis le 30 décembre 2018
1 Recommendations


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I am an experienced software developer, entrepreneur and leader. My varied and extensive work experience has allowed me to build a strong software development skillset. I mainly work with: - Mobile App development in Swift, Java, Objective-C, Ionic, React-Native - Web development in React.js, Redux, HTML, CSS, Javascript, PHP , NodeJS - API development in NodeJS and Express - Blockchain development, including Ethereum integration via Web3 - Databases in MySQL, GraphQL, Redis, MongoDB, Firebase - Architecture with Amazon AWS (EC2, S3, SES, Cloudfront, Route53 and others) - Frameworks including Google Maps (iOS, Android and Web), Mapbox (iOS and Android), Firebase (Authentication, Database, Crash Reporting and others on iOS, Android and Web) - Payments integrations with Stripe, Coinbase (Bitcoin, Ethereum, etc.), PayPal, Bitpay, and Coinpayments. - Server management in Linux (mainly running Ubuntu)
$70 USD/hr
4 commentaires
  • 100%Travaux complétés
  • 100%Selon le budget
  • 100%Dans les temps
  • N/ATaux de Réembauche


Avis récents

  • image de Yegor C. Project 21360411 has been deleted $900.00 USD

    “Wonderful quality and amazing speed. I will hire him again.”

  • image de United N. ios ui update $200.00 USD

    “Super smart and always willing to do whatever is best to make sure that the client is happy. Excellent coder, excellent designer and my project looks perfect I can't wait to hire him again”

  • image de James S. Transfer files from objective c to swift $100.00 USD

    “He did phenomenal work that I had spent hours trying to fix and couldn't do and knocked out the project even before the deadline. Highly impressed.”

  • image de Abdelkrim O. Simple HTML5 project worked Facebook Instant Games $150.00 USD

    “I am happy to work with [login to view URL] is very faithful. I am willing to work with you again.”


Project Manager

Apr 2007

Developed and Published so many Mobile apps & games and Websites



1999 - 2003 (4 years)

Doctor's Degree

2008 - 2011 (3 years)


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