1367 JavaScript developers in 233 agencies found

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: 06 Dec 2018
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: 14 Jan 2019
DO
All rates are indicative, annual rate includes 20% discount
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Updated: 14 Jan 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: 06 Dec 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 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 Jan 2019
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: 14 Dec 2018
Full-stack Python/JavaScript Developer
All rates are indicative, annual rate includes 20% discount
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Updated: 16 Jan 2019
AL
Senior Web and Blockchain Developer
I am extremely passionate about blockchain and web development and finding elegant solutions to difficult business tasks ----------- My skills: ----------- ✔ Golang ✔ Blockchain (Ethereum, Bitco...
1 Project completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 17 Jan 2019
Technical Consultant, Architect, Agile Practitioner, Software Engineer & Open-source Enthusiast
Experienced Technical Consultant & Architect with a demonstrated history of working in the information technology and services industry. Skilled in Software Development, Architecture, Agile Methodolog...
3 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 18 Jan 2019
OA
Test Automation QA Engineer | QA Team Lead | QC| Manual QA Engineer | Ruby | Python
All rates are indicative, annual rate includes 20% discount
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Updated: 17 Jan 2019
MS
Blockchain Developer focused on Decentralized Systems and Scalability Solutions.
All rates are indicative, annual rate includes 15% discount
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Updated: 18 Jan 2019
Senior Full-stack Developer
Full-stack developer with 14+ years of software development experience. Confident team player used to work in different size teams and participate in challenging projects. Non-conflict person who is e...
7 Projects completed
GMT West Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 17 Jan 2019
MB
All rates are indicative, annual rate includes 20% discount
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Updated: 14 Jan 2019
AL
Senior Software developer and a Tech Lead ( JavaScript, React.JS , AngularJS, Node.JS)
All rates are indicative, annual rate includes 20% discount
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Updated: 14 Jan 2019
AK
Senior Go/Python/JS and Solidity Developer
Over the past 3 years I have developed and delivered numerous Blockchain projects which work with Ethereum, Bitcoin, IPFS, etc. Also I have 12+ years of commercial development of web application using...
2 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 15 Jan 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!