63 Cryptocurrency developers in 29 agencies found

Senior Go and NodeJS developer
I am a Go/NodeJS developer with 5 years experience. My primary goal is to provide high-quality work using the best resources and practices available to help you achieve your business goals. I'm inter...
3 Projects completed
GMT+2 East Europe
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Updated: 25 Jun 2019
MT
Front-end Developer with strong professional experience focusing on React framework and related technologies.
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Updated: 21 Jun 2019
AT
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Updated: 21 Jun 2019
A Full stack Developer from Ukraine with 8+ years developing Products and Services
During this time I have been working with React.js, Angular, Nuxt, Pug, HTML5, SCSS, SASS, CSS3 on front-end side, Node.js on back-end side and with MongoDB, MySQL. I have an extensive experience in u...
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Updated: 19 Jun 2019
VB
Blockchain and Cryptocurrency Developer
For more than 3 years I have been working on implementing Blockchain and building DAPP solutions from the ground up. My expertise includes building new cryptocurrencies and performing hardforks of the...
4 Projects completed
GMT West Europe
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Updated: 12 Jun 2019
EM
Former Fiverr CTO. Over 15 years of experience in developing web applications, APIs and Mobile application in a vast number of technologies.
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Updated: 13 Jun 2019
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Updated: 14 Jun 2019
Middle HTML developer
Very skilled and experienced HTML developer with more than 6 years of Front-End background. HTML, HTML5, and CSS3 are the main programming languages Daniel uses in his everyday work, Less and Bootstra...
20 Projects completed
GMT+2 East Europe
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Updated: 13 Jun 2019

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Interviewing a Cryptocurrency Developer: 9 Key Technical Skills

Due to the rapid growth of cryptocurrencies as well as blockchain technologies behind them, Ethereum and bitcoin cryptocurrency developers are in high demand nowadays. Cryptocurrency developers are typically responsible for the bitcoin, blockchain and Ethereum platform APIs for smooth integration of various cryptocurrency-related applications and services that handle cryptocoin transactions. If you are using such applications or launching an ICO, then you are probably looking for a cryptocurrency engineer. In this article, we will highlight the key technical skills that you should spot when interviewing a cryptocurrency developer:

  1. Familiarity with bitcoin, ether, and other cryptocurrencies.
  2. Basic understanding of blockchain technologies. As we have already mentioned, blockchain is the main technology behind cryptocoins, and daily tasks of cryptocurrency programmers include the development of applications and systems based on this technology. The most popular blockchain platforms for today are Ethereum, Hyper Ledger, and HashGraph. It will be fine if your candidate demonstrates knowledge of at least one of these platforms.
  3. Understanding of decentralized applications (DApps). A dapp is an application that runs on a decentralized, peer-to-peer network such as Ethereum. Besides, to be able to build dapps, the cryptocurrency developers for hire should be familiar with front-end technologies as well as cryptography, which is required to build the back end part.
  4. Knowledge of Solidity programming language. It is now the most popular language for writing smart contracts – algorithms that are used in blockchain. Solidity is an object-oriented, open source programming language, the syntax of which is similar to that of JavaScript.
  5. Knowledge of Truffle framework. Truffle is a popular Ethereum framework for building blockchain apps.
  6. Experience with at least one of the following languages: C, C++, C#, Erlang, Golang, Java, JavaScript, Haskell, Rust, Python, or Scala.
  7. Understanding of the cryptocoin mining concept and ability to implement the related features in applications and systems.
  8. Familiarity with cryptography, such as symmetric, asymmetric (pub/priv key), hash functions, and encryption/signatures.
  9. Strong understanding of algorithms and data structures, such as HashMaps, Linked List, Queue, Stack, or Tree.