JavaScript Development Services

JavaScript is a client-side development language that helps create dynamic website content. Powered by Node.js, JavaScript serves as a fast server-side language for the entire application to be coded in JavaScript.

ScienceSoft’s developers leverage JavaScript to build richly interactive web and mobile applications with accelerated loading time.

Looking to Outsource JavaScript Developers?

ScienceSoft provides pre-vetted developers to optimize the delivery time and costs of your development project. Our experience is backed up by:

33 years in software development.
Over 3,300 dev projects completed.
50 JavaScript engineers on board.

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Why ScienceSoft as a JavaScript Development Company

Our JavaScript Highlights

20-year experience in JavaScript development services.
95% of our projects utilize JavaScript.
Our developers have 5 years of experience with JavaScript on average.
Experience in building smart TV apps with JavaScript.
Cooperation setup within 5 days.

Facts about ScienceSoft

On-site availability of PMs and BAs.
Experience in cutting-edge technologies: computer vision, machine learning, IoT, big data, AR, VR.
Mature development practices and project/team management processes.
HQ – McKinney, Texas. Offshore development centers in Europe. Representative offices in the UAE, EU, and Georgia (US state).

Our Development Skills

JavaScript frameworks and libraries

Back end

Mobile dev tools and frameworks

Cloud services

SaaS platforms

Request CVs of JavaScript Developers

Development Areas We Use JavaScript in

Web apps of any scale (including SaaS)

Native and cross-platform mobile apps

Progressive Web Apps (PWAs)

Custom APIs

Legacy app migration to JavaScript

Our Industry Expertise

Retail Healthcare Manufacturing Financial services Transportation & Logistics Professional services Telecoms Education

Featured JavaScript Projects

Development of Mobile Video Streaming Apps for a TV Industry Leader

5.5-year partnership.
Result: multi-screen apps for online streaming used by 6 major broadcasting companies in the US, and a propriety JS-powered framework to extend functionality and accelerate delivery of new features in all of the Customer’s products.

Project details

Migration of Medical Enterprise Management Software to Java and JavaScript

Replacing the outdated Flash front end with the JavaScript SPA interface.
Result: migration of 200+ screens to JavaScript with the use of the React framework.

Project details

Banking Application Development for an Asian Bank with 3+ mln Customers

Result: convenient user experience in the JavaScript application with rich functionality (split payments, spending limits, virtual cards, and more).
Techs & tools: JavaScript, Angular, HTML, CSS, WebKit, JSON.

Project details

Web App System Development for Car Insurance Claim Estimation Based on 3D Models

User interfaces built with the React library.
Result: the facilitated creation of interactive and structured web app screens.

Project details

Ecommerce Implementation for a Provider of a Fruit and Vegetable Delivery Service

Implementation of AJAX technology to enable dynamic loading of new content on the web pages without page refresh.

Project details

our Code Quality Practices in JavaScript Development

Adherence to code rules

Following the JavaScript style guide.
Creating descriptive names for code variables.
Leaving comments about what particular code functions and methods do.
Documenting what code does and what its dependencies are in a final README doc.
Splitting code into short and focused units.

Using framework APIs and third-party libraries.
Including unit tests.
Keeping code portable.
Using version control.
Using linting tools (SonarQube, ESLint).

Code review practices in our company

E.g., ad hoc review, pass-around, walkthrough, pull request, inspection.

Control of code quality metrics

Maintainability Index (MI), Cyclomatic Complexity (CC), Depth of Inheritance, Class Coupling, Lines of Code.

Our Experts Say

Vadim Belski, Head of Web Development at ScienceSoft

"JavaScript’s versatile ecosystem of frameworks continues to evolve and improve, opening new opportunities for developers. Today, JavaScript can be used anywhere from the web back end to the mobile front end and even desktop apps, meaning that a small team of JavaScript developers can cover most of a company’s development needs."