This is an in-depth guide to help recruiters in hiring engineers for React JS. In 2024, React JS is one of the most prominent and widely used JavaScript libraries for front-end development.

1. 5 Key Steps to Successfully
Hire Reactjs App Developers
Nowadays, there is an excellent demand for React JS developers.
However, hiring managers need to create a hiring plan that would
support them in hiring React JS developers. This is an in-depth guide

2. to help recruiters in hiring engineers for React JS. In 2024, React JS is
one of the most prominent and widely used JavaScript libraries for
front-end development.
Businesses worldwide are using React JS technology and want to get
the most out of it, so they are looking to hire React JS experts.
Industry leaders in web and mobile applications, like Uber, Facebook,
Amazon, and Twitter, use JavaScript. Due to their success, React JS is
becoming more widely used by other businesses.
The surplus of React JS developers brings about a distinct set of
employment issues. How can experienced and skilled React JS
developers be hired? You can hire React JS developers for your
project by following this step-by-step process.
Overview of ReactJS

3. React JS is a free, open-source, front-end JavaScript library
maintained by Meta, a group of companies and individual React app
developers.
React JS is another declarative and adaptable JavaScript toolkit for
building user interfaces that rely on UI components for their
applications. Programmers use React JS to create component-based,
interactive user experiences.
Jordan Walke developed React JS, which became accessible in the
market in 2011. After that, the need for React JS development and
apps has increased exponentially and will continue to grow in the
same way.
A step-by-step process on how to hire React JS
developers
Step 1: Outline the requirements, project, and
financial plan.

4. Describe your needs and expectations if you’re looking to hire React
JS engineers for your organization. By clearly communicating your
requirements, you can ensure that both you and your potential
customers agree.
Sign a win-win contract that addresses all of the essential facets of
your future relationship. Add deadlines, a budget, and fines to the
contract.
Step 2: Conduct phone interviews and then in-person
interviews
Ensure the people you pick for your project are the right fit before
hiring React JS specialists. Utilize software known as “resume filters”
to screen candidates for a similar position.
Once you have the perfect or appropriate resume, call them. For the
telephone interview phase, consider their expertise, experience, skills,
background, and knowledge while asking your questions.

5. Step 3: Assess the portfolio before hiring React JS
programmers
Analyze the projects your candidate has worked on in their role.
Review their roles and responsibilities, participation degree, project
results, achievements, and employer appreciation. When hiring React
JS engineers, profile evaluation is an essential stage that must be
addressed.
Step 4: Evaluate technical proficiency to hire React JS
programmers
Assess the technical proficiency of React JS developers using the
questions listed below. By asking them these simple and basic
questions, you can analyze and test whether the candidate has the
technical background to finish the project successfully or not for your
respective client.
Questions for hiring React JS engineers at the junior level
Q1. Does HTML get used in the React framework?

6. A1. React development makes use of JSX, a JavaScript syntactic
extension that is perfect for the HTML documentation.
Q2. What is the model of the CSS box? How do I rearrange the boxes
on a web page in a browser?
A2. The CSS box model will describe the rectangular boxes which are
based on the visual formatting model and will create documentation
for tree objects. The boxes’ positions can be switched using transform,
position, and margin.
Q3. In React applications, how do you manage events?
A3. Clicks, keystrokes, and form submissions are instances of user
interactions known as events. React offers event handlers that
function and are also contained in components. The UI element
experiences the associated event, which triggers these functions.

7. Q4. Describe the Virtual DOM notion in brief as it connects with
React.
A4. An in-memory replica of the real DOM is called the Virtual DOM.
React efficiently determines the differences between past and current
virtual DOM states rather than modifying the browser’s DOM directly,
enabling simpler and more efficient UI modifications.
Questions at the mid- level for hiring React JS developers
Q1. Can JS support multiple inheritances?
A1. In JS, a single prototype is linked to every object. JavaScript
cannot effectively inherit from more than one prototype chain.
Q2: What is an event loop in JavaScript?
A2. An event loop is an infinite loop that accepts commands, performs
them, and then waits for other commands. The event loop

8. continuously monitors the call stack and the callback queue. When the
callback queue becomes empty, the event loop adds the next function
to the call stack.
Q3. Describe the idea of React’s Unidirectional Data Flow.
A3. In React apps, data is passed and updated in a unidirectional
manner. Props allow data to pass from parent components to child
components. Newer components are unable to alter the props they are
given directly. Instead, they use state management systems such as
Redux or broadcast events to cause updates that re-enter the
component hierarchy.
Senior-level questions for hiring React JS developers
Q1. Tell us about a React component lifecycle technique you used and
why.

9. A1. componentDidMount():: This function can be used to set up
subscriptions or retrieve data from an API. It executes after the initial
render.
useState() Hook: (For functional components) This hook can manage
the component state.
Q2. How would you optimize a React application’s performance?
A2. Memoization: To prevent needless re-renders, cache component
outputs.
Code splitting: The application code is divided into smaller bundles to
speed up initial load times.
Lazy loading: It reduces the initial bundle size by loading components
only when needed.

10. Virtualization: Effective methods for presenting big lists, such as
windowing.
Q3. How do props and state differ from each other?
A3. Standard JavaScript objects include props and state. Even though
they both have data that determines render outcome, the components
that make them function differently. The component receives props in
the same manner as function parameters. A function declares
variables the same way the component handles the state.
Step 5: Onboarding
Please provide the best possible experience for your new hires by
considering their points of view and striving to integrate them into the
company as soon as possible. To assist you, consider these few action
items:
Steps for onboarding

11. ● Deliver a welcoming package to them.
● Extend the documentation and assist them in the same way.
● Grant access to your work tools and applications.
● A buddy should be assigned to assist them with small tasks.
● Follow these actions to help people comprehend the culture
of your company:
● Give in your employee handbook.
● Present the company’s values, mission, and vision to them.
● Play recordings of previous all-hands meetings for them.
● Tell the candidate a few things:
● Their initial weeks’ tasks
● Normal working hours
● Their team
● Your requirements for coding
● Your expectations
How much do React JS developers get paid?

12. Knowing the possible wage range of React JS developers is necessary
before hiring them.
React developers’ pay is affected by several variables, including
location, cost of living, experience, seniority level, projects, awards,
and many more.
Conclusion
You now know how to hire ReactJS developers easily, which is
advantageous for your company’s requirements. If you’re still unsure,
you can hire ReactJS developers from BOSC Tech Labs, who
will meet your specific company needs and assist you in developing
products that are ready for the future.