How to Employ React JS Developers?

Discovering experienced React JS developers is a straightforward process with the following step-by-step approach.

Hiring React JS Developers – What’s the Process?

React JS has emerged as an ever-growing favourite framework for front-end development with a staggering 58.99 million monthly downloads as of January 2022. The reasons for its incredible popularity are many, including its flexibility and scalability. React’s versatility enables developers from a range of backgrounds to unleash their creativity and develop revolutionary solutions.

Consequently, React JS technology has been incorporated into the workflows of businesses worldwide, with React JS developers being hired to maximise its potential.

Leading names such as Uber, Facebook, Amazon, and Twitter use JavaScript for their web-based and mobile applications. Their accomplishments have inspired many other companies to adopt React JS with open arms.

Despite the overwhelming abundance of React JS engineers within the market, it remains a challenge to find qualified and experienced professionals for a specific project’s recruitment process. Companies must establish a rigorous hiring process to secure the most capable and dependable professionals for their specific React JS development requirements.

Before discussing the step-by-step process of hiring React JS engineers for a project, it’s important to review the fundamentals of React JS.

What is React JS Exactly?

React JS, a free and open-source JavaScript library for front-end development, is managed by a community of individual developers and corporations in collaboration with Meta.

React JS is a powerful and adaptable JavaScript framework that enables developers to create interactive and dynamic user interfaces using UI components. It provides a comprehensive library of features and tools, making it easy for developers to build reliable and engaging user experiences at a fast pace.

React JS was created and launched by Jordan Walke in 2011, and has since experienced tremendous growth in both development and application demands. Its popularity has increased steadily since its inception, and it is now used extensively around the world.

What Advantages Does React JS Offer?

React JS is becoming increasingly popular due to its numerous benefits. Here are a few examples:

From a Business Perspective –

  • React JS framework comes equipped with a virtual Document Object Model (DOM) that includes all properties of the node tree. The DOM represents the HTML components of an online application or web page in a logical manner. Read more about the React JavaScript framework here.
  • React JS applications are not browser-dependent as they are rendered directly on the server.
  • React JS is an affordable and SEO-friendly framework.

From a Developer’s Perspective –

  • The public API of the React JS platform remains unchanged, making backward compatibility easy to maintain.
  • Development teams can use the open-source React JS library to work on new features and fix any problems that arise.
  • React JS provides unique tools that simplify debugging, allowing developers to debug their code directly in the browser.
  • React JS is easy to learn and offers a concurrent mode to build user-friendly applications quickly.

Requirements and Responsibilities of React JS Developers

React JS opens up a plethora of opportunities, making it an ideal choice for professionals of all backgrounds and experience levels. To determine the specific qualifications required for junior, mid-level, and senior React JS engineers, we need to delve deeper into their specific responsibilities. Junior engineers are expected to develop and maintain React JS applications, debug and troubleshoot existing code, and create automated tests. Mid-level engineers generally have a more comprehensive understanding of React JS and its applications along with extensive experience in debugging, testing, and developing applications. Senior React JS engineers are responsible for designing, developing, and maintaining complex React JS applications and providing technical mentorship to junior and mid-level engineers.

  1. Entry-level React JS Developer.

    Junior level React JS engineers usually have one to two years of experience in the field, giving them a good understanding of the basic principles of React and Angular. Additionally, they are proficient in HTML, CSS, Bootstrap, JavaScript, Git, and RxJS.

    Moreover, junior React JS engineers are expected to have intermediate or advanced proficiency in written and spoken English.
  2. React JS Developer with Intermediate Skills.

    Mid-level React JS developers usually possess more than two years of experience working with the React JS library. They exhibit a deep understanding of HTML, CSS, Bootstrap, JavaScript, Angular, Git, and RxJS, and can demonstrate proficient expertise while working with Node.

    Mid-level React JS developers have a thorough understanding of JavaScript (ES6), TypeScript, and state management with Redux. Additionally, they typically have expertise in developing mobile applications having highest-quality user interfaces and API endpoints.
  3. Senior React JS Developer.

    Senior React JS Engineers are required to have a minimum of five years of experience in the field. They should possess competence in using React JS and TypeScript to design user interfaces. Moreover, they should be well-versed in popular Front-end technologies like ES6, SASS, WebPack, and Unit Testing.

    Senior React JS Engineers display a high level of proficiency and expertise in different programming paradigms such as Model-View-Controller (MVC), Model-View-ViewModel (MVVM), Inversion of Control (IoC), and designing Representational State Transfer (REST) services/Application Programming Interfaces (APIs). Additionally, they possess a strong command of the English language, typically at an upper-intermediate or advanced level. Furthermore, these seasoned professionals are familiar with other popular JavaScript frameworks like jQuery, Vue, and Angular.

Source the Right Places to Hire React JS Engineers.

  1. Recruit React JS Developers from Job Boards.

    You can find React JS engineers on job boards like Hubstaff Talent, Monster+, and Indeed, but it’s crucial to note that these platforms cannot ensure the qualifications of the candidates you come across.
  2. Recruit React JS Developers from Social Media Platforms.

    You may find it easier to find React developers by utilising professional social networks like LinkedIn, AngelList, Meetup, and Jobcase. However, it is crucial to keep in mind that these social networking websites and job posting sites can only provide a limited number of qualified candidates.
  3. Works Offers React JS Developers for Hire.

    Works streamlines the process of hiring full-time remote React JS engineers with its advanced job platform. Works stands out by conducting tests on over 100+ skills including data structures, algorithms, systems design, software specialisations, and frameworks, all within five or more hours, which goes beyond the typical employment interviews and assessments in Silicon Valley. If you are seeking the best, most qualified full-time remote React JS developers, Works is the ideal option.

A Step-by-Step Guide to Recruiting React JS Developers

Step 1: Describe Your Project, Requirements, and Budget.

When searching for React JS engineers to hire, defining your requirements clearly is essential to ensure agreement between you and the potential employee. When discussing the necessary skills and qualifications, consider the types of projects that the engineer will be working on, and the level of knowledge, experience, and background required to complete them effectively. Additionally, factor in the expected level of collaboration and any necessary certifications or qualifications. By taking the time to establish your expectations, you can make sure that the prospective employee is a suitable fit for the role.

Ensuring the success of your future partnership requires a mutually beneficial agreement that covers all critical aspects. The contract should specify the budget, establish deadlines for task completion, and outline any penalties for non-compliance. This ensures that both parties understand their roles and responsibilities clearly.

Step 2: Conduct Phone and In-person Interviews.

To ensure the selection of the most suitable React JS engineers for your project, it is essential to have a clear understanding of the best applicants. One recommended approach is to use a resume filtering programme to screen applicants. This will enable the identification of the most skilled and qualified candidates for the position.

After obtaining the required resumes, contact the candidates to begin the phone interview phase. When drafting the questions for this stage, consider the candidates’ qualities, experience, and qualifications.

Step 3: Evaluate the Portfolio to Hire React JS Engineers.

Thoroughly examining the projects that the candidate has participated in to date is crucial. This includes their roles, level of participation, project outcomes, and any recognition received from previous employers. When hiring React JS engineers, conducting a thorough evaluation of their profile is essential.

Step 4: Assess Technical Skills to Hire React JS Developers.

In order to assess the technical ability of potential React JS engineers, the following questions have been formulated. These questions aid in determining if the candidate has the necessary technical knowledge to complete the project effectively.

Questions to Ask When Hiring Junior-Level React JS Developers

Q1. Does React Utilise HTML?

A1. React uses JSX, a JavaScript syntax extension that resembles HTML.

Q2. What is the CSS Box Model, and how can I relocate boxes on a web page?

A2. The CSS Box Model is a visual formatting model that creates rectangular boxes for elements in the document tree. These boxes can be positioned, margin, and transformed by utilising CSS.

Q3. What is the naming convention for React components?

A3. If visibility of the component is desired, it is recommended to begin the component name with a capital letter. Components that start with a lowercase letter are recognised as DOM tags by React.

Q4: How does setState() function work?

A4. By employing the setState() method, the component is informed that adjustments have been made to its state object, and a redraw of the component and its children is scheduled to represent the updated state.

Inquiries to Make When Recruiting React JS Developers

Q1. What is the term used for converting JSX to JS?

A1. Transpilation is the process of converting source code from one programming language to another. Transpilers are software tools that transform source code written in a programming language into another language, typically, for the target platform. Babel and TypeScript are popular transpilers that are often used to convert JSX code to JavaScript.

Q2. What is the meaning of null in JavaScript? How does it differ from undefined?

A2. The keyword ‘null’ is used to indicate that an object does not have a value associated with it. It is commonly used as a placeholder, and objects that are no longer needed can be removed by setting them to null (e.g. object = null).

Null and undefined have different meanings. Null refers to a variable that has no assigned value, while undefined indicates that the variable does not exist.

Q3. Can JavaScript have multiple inheritances?

A3. In JavaScript, every object is linked to a single prototype. It is not possible to inherit from multiple prototype chains concurrently in JavaScript.

Q4: What does the Event Loop imply in JavaScript?

A4. The Event Loop in JavaScript is a circular mechanism that monitors the callback queue and call stack, responsible for completing tasks as they emerge. The event loop waits for the call stack to be cleared before adding the next function from the callback queue, and this process repeats indefinitely. This ensures that tasks are completed efficiently and in a timely manner.

Interview Questions for Hiring Senior React JS Developers

Q1. What is the definition of Higher-Order Components?

A1. A Higher-Order Component (HOC) is a function that accepts a single component as an argument and produces a new component as a result. This concept stems from the fact that React is made up of components that are built from other components. HOCs are considered “pure” since they accept any child component given dynamically as input without affecting or replicating the input component’s behaviour.

const EnhancedComponent = HigherOrderComponent(WrappedComponent);

Higher-Order Components (HOCs) are advantageous in a broad range of scenarios, some of which include:

  1. Code and logic reusability, as well as abstraction of bootstrap
  2. Facilitate hijacking
  3. State abstraction and customization
  4. Prop manipulation

Q2. What are the differences between a class component and a functional component?


Class Components:

  • Class-based components employ ES6 class syntax and can utilize lifecycle methods.
  • Class Components are an expansion of React Components.
  • The “this” keyword must be used to access the properties and functions declared within Class Components.

Functional Components:

  • Functional Components are simpler to comprehend than Class-based components.
  • Functional Components are focused on the application’s user interface rather than its functionality.
  • These are the render functions in the Class Component.
  • Functional Components can have a state and imitate lifecycle events by utilizing React Hooks.

Q3. How does state differ from props?

A3. Props and state are both conventional JavaScript objects that are utilized to transmit data to components and impact their rendering outcome. Props are passed to components similar to how arguments are usually passed to functions, while state is internally maintained by the component like a function would declare its own variables.

Q4. What is prop drilling, and how can it be prevented?

A4. Prop drilling is a common method in React applications to extract data from a deeply nested component higher up in the hierarchy. The simplest way to achieve this is by passing a property from one component in the hierarchy to the next, from the source component upward to the highly nested component.

The primary drawback of prop drilling is that it makes unsuspecting components excessively complicated and challenging to maintain.

React Context is a prevalent approach to avoid the tiresome procedure of “prop drilling.” This method enables developers to create a component that offers data for its nested components to access via a consumer component or the useContext hook.

Stage 5: Acceptance

Consideration of a new employee’s viewpoint is crucial to guarantee that they receive the finest possible experience, allowing them to acclimate to the organisation in a timely manner. To begin the process, here are some suggestions that could be beneficial:

Onboarding Process Steps

  • Send a gift of welcome to them.
  • Provide and assist them with the paperwork.
  • Permit others to use your company’s tools and applications.
  • Designate a buddy to assist them with minor tasks.
  • To assist the new employees in understanding your corporate culture, follow these steps:
    • Provide them with your employee handbook.
    • Show a presentation about the company’s values, purpose, and vision.
    • Show them recorded footage of previous all-hands sessions.
  • Please notify the candidate of the following:
    • Their initial tasks
    • Usual working hours
    • Their team
    • Your coding standards
    • Your expectations

What is the earning potential for React JS developers?

To hire React JS developers, it is essential to establish the expected salary range.

The salary of React developers is influenced by several factors, including their seniority level, experience level, project involvement, awards or recognitions, and cost of living in their location. The remuneration for React developers is determined by a combination of these elements.

Research has shown that salary levels in North America are typically higher than those in Western Europe. Additionally, within the region of Western Europe, Austria has higher wage rates than Spain.

What is the process to recruit React JS developers for your company?

Before hiring React JS developers, it’s crucial to create a comprehensive recruitment plan. A well-planned strategy will help your organization identify, select, and retain the top talent in the market. In doing so, you can attract the best developers and increase the chances of successful recruitment.

Although React developers are in high demand and popular, finding the right one for your software project at an affordable cost can be challenging. The good news is that Works can assist you in overcoming this challenge and provide you access to the best React developers for your project.

Works simplifies and makes remote hiring profitable for both developers and businesses. Using Works, companies can quickly hire high-quality, pre-screened remote software developers for more than 100 different specialties within a span of 3 to 5 days, all at a fraction of the cost.

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