Hire JavaScript Developer

JavaScript is a powerful, client-side object-oriented scripting language. It is lightweight and widely used due to its ability to add interactivity and create dynamic web pages. Autocompletion, audio/video playing, animated page elements, new content loading without page reloading, input validation from the web form, and many others are performed by JavaScript. JavaScript is considered a unique programming language as it is simple, fully integrated with HTML/CSS, and compatible with all widely-used browsers. JavaScript developers can help to create high-performance, dynamic and scalable solutions of the most varied types:

Interactive websites

Progressive web apps

Server apps

Web apps

Mobile apps

Desktop apps

Browser games

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Reasons to hire a JavaScript developer

These days, JavaScript is an indispensable programming language, and JavaScript developers are in great demand. All these can be explained by its versatility and a wide range of valuable features. Being originally created as a client-side programming language, JavaScript is now well used for back-end development due to Node.js.

Expertise of our JavaScript developers

Custom JavaScript development

Client-side JavaScript development

Server-side JavaScript development

JavaScript mobile app development

JavaScript desktop app development

JavaScript web app development

JavaScript SPA development

Advantages of using JavaScript

Over the years, JavaScript has held the leadership being the most popular programming language. It is quite obvious as JavaScript has plenty of advantages:

A wide range of libraries and frameworks

JavaScript has indeed comprehensive and robust ecosystems. The wide range of JS frameworks and libraries helps overcome the JavaScript limitations, provides better app maintenance and scalability, as well as significantly optimizes the development process.


Using JavaScript, developers can create extremely speedy, responsive, and high-performance apps and websites.


JavaScript is supported by all the most widely used web browsers. Besides, numerous plugins and add-ons accelerate the integration and support JavaScript elements.

Less server load

Due to JavaScript, servers do not have to handle extra loads anymore. The websites run much quicker, and users enjoy a better experience. For example, user inputs are validated before being sent to a server. It helps save server traffic, which results in less server load. On the other hand, users have an opportunity to receive fast feedback without waiting for a page reload.


Developers can use JavaScript in combination with a lot of other languages. File extension does not matter, and JavaScript can even be written directly in PHP scripts.

Rich interfaces

With the help of JavaScript, developers can create websites and apps with interactive rich UIs ensuring a smooth user experience.


Simplicity is one of the main concepts of JavaScript. It is easy to learn and easy to use.

Broad community

Thousands of developers use JavaScript for millions of websites and apps. As a result, there is no shortage of dedicated platforms, forums, and JavaScript learning resources.

Speedy development

Apart from being extremely convenient and simple, JavaScript offers numerous opportunities for development process optimization. As a result, product development takes less time and costs less.

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Process of JavaScript developer hiring

The process of a JavaScript developer hiring takes time. To accelerate this process, we recommend you first of all to submit your project requirements. After a thorough study and analysis of your requirements, we define team size and draw up a list of deliverables and a project roadmap. On the ground of this information, our HR and technical specialists sort out the most appropriate candidates for your project, send their CVs and portfolios, and organize video interviews. As soon as all candidates are approved, we get to a smooth integration of our dedicated team with your in-house workflows, tool sets, and team, ensuring effective working relationships and compliance with your corporate culture.

Reasons to hire JavaScript developers from Devico

Only professional and experienced JavaScript developers

The most varied domain expertise

Excellent development infrastructure

Maintained coding standards

High-quality development services at a reasonable price

Smooth and easy onboarding

Fast development

Effective communication and good command of spoken and written English

Consistent reporting

Scalability and flexibility

100% project privacy and strict adherence to the terms of NDA

End-to-end project support

Flexible engagement models


Devico is an excellent Software development team. As a startup in Silicon Valley with minimal budget, I needed a Software team that meets our high expectations with a reasonable cost. I was first a little hesitant to utilize a remote team because of how quickly we need to make changes. But I was quickly impressed by the talent and project management Devico provided. Devico development team were fast, organized, and provided quality code. They were doing such a great job that I decided to use them as my primary software development team.




We have searched 18 months to find a quality team that actually delivers and is highly responsive to the project. We were very impressed with the quality of their employees. Devico demonstrated a deep understanding of our business processes and their innovative approach helped us a lot. Devico works hard to achieve the task in hand and in a timely manner. They are more than just a software development provider, they are our friends from now on.

Ken Woodstone


Zoooper President

Devico had implemented a new testing environment within 45 days that accounted for nearly 75 percent of their product line with minimal regressions. 7 excellent engineers were hired from their side. Devico brings exceptional project management skills to the table and a high degree of resource flexibility. They are extremely intelligent guys and can easily consume both technical and business requirements. Highly recommend Devico.

Brian Huddleston


VP of Development in Dachis

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Required skills and responsibilities of JavaScript developers

Due to the multifunction and versatility of JS, JavaScript developers can play different roles. So lets consider each one in detail.

1. Front-end JavaScript developers

Front-end JavaScript developers work on the graphical interface to enable users to interact with an app or web site easily.

Responsibilities :

Creation of quality mockups and prototypes;

Creation of interactive UIs;

Monitoring of app performance;

Clear JavaScript, HTML, and CSS code writing;

Improvement of app usability;

RESTful API building in cooperation with back-end developers.

Skillset :




HTML5 and CSS3;


JavaScript libraries: React.js; Redux;


JavaScript frameworks: Angular.js, Vue.js, Ember.js;





2. Back-end JavaScript developers

Back-end JavaScript developers concentrate on the server, app logic, and database issues.

Responsibilities :

Coding and testing of Node.js based apps;

Integration of UIs with server logic;

Design, development, and deployment of new components;

Design and implementation of APIs;

Creation of server-side infrastructure;

Collection of technical requirements.

Skillset :




Express and Node.js;






SQL relational databases;









3. Full-stack JavaScript developers

These developers have expertise either in front-end or back-end development. As a rule, a full-stack developer is not a good choice for DB architecture creation or specific design development. However, it is a perfect match for the development of prototypes.

Responsibilities :

Front-end and back-end development;

Server-side logic implementation;

Architecture development;

Database creation;

Prototype creation.

Skillset :

As a full-stack developer and a versatile specialist, he should have the skills needed for the both above-mentioned JavaScript developer roles.

Top companies that use JavaScript in their projects

For several years running, JavaScript has been considered as the most famous programming language. That is why it is not surprising that currently, about 95% of all websites run on JavaScript. As a result, the list of the top companies that use JavaScript in their projects is indeed endless. Suffice it to say, such global giants as Google, Facebook, and YouTube are enlisted.

How much time does it take to develop a JavaScript Project?

There are no specific time limits for JavaScript project development. In fact, everything depends on the scope and requirements of each particular project.

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Our engagement models

Devico offers flexible hiring models to provide you with an opportunity to choose the most appropriate one that complies with your business needs and project requirements.

Dedicated teams

A dedicated development team is the best choice for companies that want to entrust software development to a single solid team consisting of the most experienced tech and management specialists (developers, architects, designers, PMs, BAs, etc.).

Time & material

This engagement model provides maximum flexibility and is appropriate for long-term dynamic projects with an evolving set of requirements.

In-house team extension

This engagement model can be considered as a perfect match if there is a need to fill the gaps in your in-house development team with high-skilled specialists or domain-specific expertise.