973 JavaScript developers in 150 agencies found

OS
Olga S.
Middle Front-end developer with 3 years experience
All rates are indicative, annual rate includes 20% discount
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Updated: 13 Aug 2018
MS
Mikhail S.
Front end and Back end developer. Skill stack: JavaScript, AngularJS, React.js, Node.js, HTML/CSS React Native
4 years experience in IT engineering. Extensive experience in Web & Mobile Development. Deep practical knowledge front end and back end production.
All rates are indicative, annual rate includes 20% discount
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Updated: 13 Aug 2018
DO
All rates are indicative, annual rate includes 20% discount
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Updated: 07 Aug 2018
YS
Yuriy S.
JavaScript (Angular, React, Node) developer
All rates are indicative, annual rate includes 10% discount
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Updated: 15 Aug 2018
RR
All rates are indicative, annual rate includes 10% discount
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Updated: 06 Aug 2018
NR
Nikita R.
JavaScript (React, Angular, Node) and PHP (Laravel) developer
All rates are indicative, annual rate includes 10% discount
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Updated: 06 Aug 2018
Denys I.
Front-end developer with back-end developing skills and 3+ years of experience in programming, analytical thinking.
All rates are indicative, annual rate includes 20% discount
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Updated: 13 Aug 2018
OL
Software Engineer - JavaScript, Angular 2x, Node.JS
All rates are indicative, annual rate includes 20% discount
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Updated: 25 Jul 2018
Team Lead, Senior UI Engineer and JavaScript Expert
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Updated: 07 Aug 2018
DP
All rates are indicative, annual rate includes 20% discount
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Updated: 16 Apr 2018
Seasoned developer with over 13 years of experience in PHP/JavaScript/HTML and Node.js/Vue.js
All rates are indicative, annual rate includes 10% discount
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Updated: 01 Aug 2018
VS
Java and JavaScript developer with deep experience in building products of different culture, scale and technologies.
All rates are indicative, annual rate includes 20% discount
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Updated: 07 Mar 2018
IY
Full-Stack Developer
All rates are indicative, annual rate includes 20% discount
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Updated: 16 Apr 2018
Senior Back-end Developer with a vast experience in web technologies
Over 10 years of experience in software development. Created complex back-end management systems including content management, e-commerce, customer relations and communication interfaces. The projects...
4 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 10% discount
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Updated: 14 Aug 2018
VB
All rates are indicative, annual rate includes 10% discount
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Updated: 26 Jul 2018

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JavaScript

13 Things You Should Consider When Interviewing a JavaScript Developer

Nowadays more and more companies focus on front-end development, putting the UI/UX component of their software products in the first place. JavaScript is considered to be the language of future. Therefore, the job websites are now full of vacancies that invite JavaScript developers to join the front-end development teams, and sometimes the demand is even higher than supply.

If you’re looking for a professional, experienced and highly-qualified JavaScript developer, then you have come to the right place. In this article, we are going to highlight some key technical skills that are a must for JavaScript programmers.

Must-Have Technical Skills of a JavaScript Programmer

  1. Deep understanding of JavaScript itself, for example, understanding of prototypal inheritance, functional programming vs. object-oriented programming, and some variations of a module pattern.
  2. Good understanding of AJAX – a set of client-side web development methods that is used to create asynchronous web applications.
  3. Basic understanding of web markup, including HTML5 and CSS3.
  4.     Knowledge of advanced JavaScript libraries and frameworks, such as AngularJS, KnockoutJS, BackboneJS, ReactJS, etc. – depending on the stack of your project.
  5. Understanding of Document Object Model (DOM). Document Object Model is a programming interface specification, which is developed by the World Wide Web Consortium. JavaScript developers use DOM to create and modify XML documents and HTML pages as fully-fledged program objects.
  6. Understanding of one-way data flow and two-way data binding as well as differences between them.
  7. Understanding of asynchronous programming and its importance for JavaScript.
  8.     Ability to name the pros and cons of monolithic vs. microservice architectures.
  9. Experience with cross-browser compatibility issues and how to deal with such issues.
  10.  Familiarity with front-end build tools, such as Gulp or Grunt.
  11.  Experience with front-end package management tools, such as npm and Bower.
  12.  Knowledge of the Domain Driven Design and Test Driven Development principles.

If your candidate can answer questions related to this skillset, it means that they have enough experience to join your front-end development team and become a valuable resource for your project. We wish you good luck and hope that you will make the right choice!