1443 JavaScript developers in 242 agencies found

AS
Anton S.
JavaScript Ninja (React, Node.js, Angular)
Hi, My name is Anton Smirnov, I am a JavaScript Developer with 3+ years of job experience in development and 1+ year experience as Team Lead. Within this period I have worked with JavaScript SE, Ba...
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Updated: 04 Feb 2019
NS
Natali S.
JavaScript (Angular, React, Node) developer
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Updated: 18 Jan 2019
MS
All rates are indicative, annual rate includes 20% discount
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Updated: 08 Feb 2019
DO
All rates are indicative, annual rate includes 20% discount
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Updated: 05 Feb 2019
YS
Yuriy S.
JavaScript (Angular, React, Node) and React Native developer
All rates are indicative, annual rate includes 10% discount
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Updated: 06 Dec 2018
RR
All rates are indicative, annual rate includes 10% discount
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Updated: 15 Feb 2019
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 Dec 2018
DI
Denys I.
Full-stack 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: 15 Feb 2019
Senior JavaScript Engineer with 8 years of hands-on experience
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Updated: 15 Feb 2019
VM
A skilled Front-End developer with more than 10 years of experience.
Vitaliy is a proficient web developer with a lot of experience in back-end and front-end development. Winner of the 10th Ukrainian Dev challenge in nomination Front-end (HTML+CSS) development in PRO c...
2 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 15 Feb 2019
Backend Developer
In web-development since 2013. Developed lots of startups via PHP-Framework Symfony and other technologies. Interested in new technologies and development tools, fond of reading technical books. Contr...
3 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 14 Feb 2019
Software Engineer / Backend Developer
I have been working with PHP for more than 8 years. During this time, I managed to work with the narrowly directed CMF ezPublish, well-structured Symfony, and also a number of not very popular CMS,...
4 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 14 Feb 2019
JavaScript Developer
JavaScript developer with 6+ years of experience. JavaScript, React/Redux, Node.js, AWS, MySQL, PostgreSQL, MongoDB, RabbitMQ, Redis and other fancy words. A strong proponent of strict code quality c...
6 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 13 Feb 2019
AS
Ruby on Rails developer with great experience in building complex APIs and integrations
I'm a Ruby on Rails developer with great experience in building complex APIs and integrations. Recently, I've also built several chatbots and integrated applications with 3rd party systems.
2 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 12 Feb 2019
AK
Front end and Back end developer, specialized in React Native / React.js / Node.js / JavaScript
All rates are indicative, annual rate includes 20% discount
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Updated: 16 Feb 2019
Senior Java and JavaScript Developer with Liferay experience
6+ years of experience in Java and JavaScript development and more than 5 years in Liferay development. Proficient in J2EE/JSP/Servlets, Spring Framework, HTML/CSS, Hibernate, Web Services (REST),...
6 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 13 Feb 2019

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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!