Imej profil kosckua
Penanda Ukraine Cherkasy, Ukraine
Ahli semenjak 6 Oktober 2019
0 Cadangan


Dalam Talian Luar Talian
My business is predicated on knocking it out of the park each and every time. Further references available upon request. 10+ years of experience in web development. College graduate with Bachelor of Science, Information Systems living in Ukraine. Worked with Fortune 300 Clients and have managed over 20 engineers Professional programming in the following technologies: - React.js, Redux, React Native - Angular.js, Angular v2 ~ v7, Ionic framework (v1 ~ v4) - Flutter/Dart - Android/iOS (Java, Kotlin, Objective-C, Swift) - Node.js, [login to view URL] - Laravel, Lumen - Java Spring Boot, MVC - .Net Core, MVC - MongoDB, MySQL, PostgreSQL, Neo4j - GraphQL, RESTful, SOAP - Blockchain Core, Wallet, Cryptocurrency, exchange, ICO, smart contract. - Python/Django Thanks for taking the time to read my profile
$50 USD/hr
4 ulasan
  • 100%Kerja Diselesai
  • 100%Mengikut Bajet
  • 100%Tepat Pada Masa
  • N/AKadar Ulang Upah


Ulasan Terkini

  • Imej Jean-Max C. Help finish a React Native app $100.00 USD

    “High quality work on my React Native project. I will work with him again in the future.”

  • Imej Iaroslav T. I want react.js and Chrome extension. $100.00 USD

    “A+++: He is very professional. High quality and good communication. Really Expert!!! I will work with him again in the future.”

  • Imej Rui L. Urgent project for React expert $50.00 USD

    “Kostiantyn is a professional's professional. Highly recommended if you have any advanced [login to view URL] & React Native application needs. Also, If you've ever been frustrated by a developer that just can't seem to grasp the big picture then Kostia will delight you. Super smart. Thinks things through.”

  • Imej Semen P. Project 21641885 has been deleted $115.00 USD

    “Awesome video editor I was happy to work with this freelancer. Thumbs up!!!”


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  • US English Level 1


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