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Find the World's Best json Freelancers

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Anton H. - Android Expert

Anton H.

Android Expert

60 hours
“Anton is a very talented and hard-working developer. This project was quite complex, and had a very tight deadline. While other freelancers told us it'll take at least 2-3 weeks,...”
  • Android App Development
Adil S. - Mobile Developer (Android)

Adil S.

Mobile Developer (Android)

1,500 hours
“Adil is easily among the top Android developers on Upwork. I have been working with him on an Android project since february 2015 until now and it has been a pleasure. He works...”
  • Android App Development
Stefan V. - Senior iOS Developer (Objective-C, Swift) / iOS Architect

Stefan V.

Senior iOS Developer (Objective-C, Swift) / iOS Architect

2,179 hours
“It was nice to work with Stefan. He knew how to deal with a quiet complexe project involving several languages, and multiple algorithm and cases depending on this languages. The...”
  • iOS Development
  • json
  • XML
Andrei S. - Top iOS/Android Developer

Andrei S.

Top iOS/Android Developer

793 hours
“Andrei was excellent. He is very skilled developer who was responsive around the clock. He quickly understood the scope of the problem I was addressing, and nailed the end product....”
  • iOS Development
  • Cocoa
  • json
Amit S. - Expert Native iPhone and Android App Developer

Amit S.

Expert Native iPhone and Android App Developer

4,458 hours
“Great team work! Finished a job that would have taken longer then a week in two days. Constantly available to communicate with and implement all changes we had. Thanks Guys! Will...”
  • jQuery
  • Node.js
  • json
  • Java
  • PHP
Keyur A. - Full Stack App Developer

Keyur A.

Full Stack App Developer

1,008 hours
“I have used Keyur for several mobile app projects and have always received outstanding work. I will definitely continue using him for my future projects.”
  • Android App Development
Karel S. - Senior iOS & Android Developer

Karel S.

Senior iOS & Android Developer

0 hours
Czech Republic
“It was my pleasure to work with Karel. Karel provided a work of good quality, he has great skills as a programmer. He is an excellent communicator and follows through on all...”
  • Android
  • iOS Development
  • C#
  • C
Igor T. - Certified Magento / iOS / Android Developer

Igor T.

Certified Magento / iOS / Android Developer

0 hours
“Igor is a positive thinker, and an excellent do-er. I will rehire him. And better, I am rehiring him!”
  • Magento
  • PhoneGap
  • PHP
  • json
Eric H. - Professional Magento Developer

Eric H.

Professional Magento Developer

175 hours
“I asked Eric to help my magento site issues in an emergency. He solved them quickly and communicated with me very well. He is really skillful to solve difficult problems. I would...”
  • Magento
  • Zend Framework
  • PHP
Erik H. - iOS Developer (Objective-C, Swift, Cocoa)

Erik H.

iOS Developer (Objective-C, Swift, Cocoa)

1,110 hours
“Erik was incredibly helpful and knowledgeable. He was easy to talk to and took the time to make sure each point was understood, by a laymen like me. I hope to work with him again.”
  • Objective-C
  • Swift
  • Cocoa
Andrei I. - Java/Grails Developer

Andrei I.

Java/Grails Developer

5,631 hours
“Andrej is an awesome freelancer. We worked over 1 year together, in total more than 1900 hours. Definitiv one of the best you can hire at upwork, we will continue our collaboration...”
  • Grails
  • Java
  • Hibernate
  • Git

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