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How to Hire React.js Developers

Vetting React.js Developers: Job Description & Interview Questions

Hiring a developer for a specific job can be time-consuming and expensive. Assigning test code projects and asking the right questions is difficult even for experienced hiring managers.

In this article, we will share a React.js job description and interview questions to help you screen applicants and hire a rockstar developer.

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What is React.js Used For?

React is an open-source, frontend framework maintained by Facebook and a community of developers and independent companies. It is a popular JavaScript library used to build a user interface (UI), or individual UI components.

Here are some of the most common uses of React.js:

Building Frontend User Interfaces (UIs)

React is a popular JavaScript library that simplifies the process of building UIs for developers.

Before React.js, developers would have to build UIs by hand with plain JavaScript or with less UI-focused languages like jQuery. That translated to longer development times and more frequent errors and bugs.

With React, development teams can expedite project timelines and the possibility of bugs, which provides a number of cost saving opportunities.

Increasing Productivity and Reducing Maintenance

Being able to reuse components is one of the biggest reasons for using React. Developers can start with typical components like checkboxes and buttons. Once this is complete, you can move to wrapper components comprised of internal logic, which makes it simpler to manipulate and define objects used. This ensures consistency of application and facilitates code maintenance.

What to Look for When Hiring a React Developer

When hiring a React developer, there are a few things you have to consider including experience, rates, and the type of work arrangement. It also depends on the type of project you have and what skills you need to complete it.

React Required Skills

Here are some of the basic skills that a React Developer is expected to have:

  • An understanding of React.js and its fundamentals, ideally including modern features like hooks
  • Excellent understanding of JavaScript including the OOP concept and how shadow DOM and DOM work
  • Knowledge of RESTful APIs
  • Understand how to to implement authorization mechanisms
  • Familiarity with modern front-end build pipelines and tools
  • Knowledge of the overall browser rendering behavior and measuring and optimizing performance

Java Experience

React developers should have some experience with the following:

  • B.S Degree in Computer Science
  • Experience with JavaScript
  • Experience with REACT
  • Experience with HTML / CSS
  • Experience with REST API's
  • Experience with Flux, Redux, Thunks or Sagas
  • Git knowledge is a plus

How to Write a React.js Developer Job Description

Writing the perfect React job description is essential to ensure that you can attract the top developers. It's also important to ensure that you set the proper expectations up-front to streamline the vetting process, saving everyone time and money.

React Developer Job Description Template

Company Introduction

Use this section to write 2-3 sentences about your company. Make sure to provide information about the company culture and benefits. This would be a good section to link to your company website. The best candidates will do some advanced research.

Job Description

We are looking for a JavaScript developer who is familiar with React.js. Your primary focus will be to develop user interfaces and implement them following React.js workflows (including Flux and Redux). You will make sure that these elements and the overall application are robust and easy to maintain.


  • Develop new frontend user-facing components using React.js
  • Build components and front-end libraries for future use
  • Translate mockup designs and wireframes into high quality code
  • Optimize web components for maximum performance across a vast array of web-capable devices and browsers
  • Add other responsibilities here that are important for the project/job


  • Strong proficiency in JavaScript, including DOM manipulation
  • Thorough understanding of React.js and its core principles
  • Experience with Flux or Redux
  • Experience with data structure libraries
  • Knowledge of isomorphic React is a plus
  • Familiarity with RESTful APIs
  • Knowledge of modern authorization mechanisms
  • Familiarity with modern front-end build pipelines and tools
  • Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
  • Ability to understand business requirements and translate them into technical requirements
  • A proven ability to benchmark and optimize
  • Familiarity with code versioning tools such as Git
  • Specify other frameworks, libraries, or any other technology relevant to your project/job
  • Education level or certification requirements

JavaScript Interview questions

When looking to hire a JavaScript developer, consider asking some of the following interview questions:

  • What are some of the major advantage of React?
  • What is JSX?
  • Why can't browsers read JSX?
  • How is React different from Angular?
  • How can you embed two more components into one?
  • How can you update the state of a component?
  • What is arrow function in React? How is it used?
  • What is an event in React?
  • What are Virtual DOMS and how do they work?
  • How would you debug an issue in React? What types of debugging tools have you used?
  • What is the difference between React.js and React Native?
  • What is Redux?
  • Why did you choose to learn and work with React?
  • Can you provide some samples of projects that you've worked on in React?

Freelance React.js Developer Rates

The average salary for a React developer is $92,301 per year in the United States. When hiring a React freelancer, you can expect to pay $59.29 on average per hour. React freelancer rates can range from $35-$200 per hour depending on the developer's experience, where they are located, their availability, and other programming languages required.

Check out our detailed pricing guide for more freelance developer rates.

Where to Hire a React.js Developer – Top Websites

Read our list of the top websites to hire a React.js developer.

Developer Hiring Guides

If you are looking for other types of technical talent, we’ve put together hiring guides for these technologies as well.

Programming Languages
Top Programming Languages
Frontend Frameworks
Top Frontend Frameworks
Backend Frameworks
Top Backend Frameworks
Content Management Systems
Content Management Systems
  • Unity
  • Salesforce
  • iOS / Android


Where can I find a React.js developer?

There are many places where you can find and hire a React.js developer online. If you're looking for a full-time developer, you can try popular job boards like Indeed and LinkedIn. For the best freelancers, consider using a remote hiring platform focused on placing programmers like Upstack or Toptal. You can also find React developers on general freelancing marketplaces like Upwork and Fiverr.

How much does it cost to hire a React.js developer?

The average salary for a React developer is $92,301 per year in the United States. When hiring a React freelancer, you can expect to pay $59.29 on average per hour. React freelancer rates can range from $35-$200 per hour depending on the developer's experience, where they are located, their availability, and other programming languages required.

What are the most important skills to look for in a React developer?

When looking for a React.js developer, ensure that they have solid experience with HTML/CSS, JSX, JavaScript fundamentals, Git, Node, and Redux.

What does a React developer do?

React.js developers design, develop and implement user interface components for JavaScript-based web applications. They are typically considered front-end developers and are involved in all stages of interface component design, from conception through to final testing.