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Learn about CoDev

We take pride in providing our clients with the right talent at the right time. We apply a comprehensive vetting process that includes English and coding assessments, background checks, education screenings, code samples, and multiple interviews.

Mission-Driven

Our goal is to empower coders from the world’s most exciting markets, so they can partner with US and Canadian visionaries to create groundbreaking products for the online world.

Technically Skilled

CoDev recruits technical talent from throughout emerging nations. When we hire, we hire for the long term. We’re proud and passionate about our employees – past and present.

How it Works

From Job Description to Dedicated Developer in 3 Steps

1
Submit your job description and skill requirements.
You provide us the details of the types of candidates you want to review.
2
View relevant candidate profiles.
Our talent specialists recommend potential candidates who align with your requirements.
3
Schedule Interviews and Make Job Offers.
From our portal, schedule your candidate interviews and extend job offers directly online.

How it Works

From Job Description to Dedicated Developer in 3 Steps

1
Submit your job description and skill requirements.
You provide us the details of the types of candidates you want to review.
2
View relevant candidate profiles.
Our talent specialists recommend potential candidates who align with your requirements.
3
Schedule Interviews and Make Job Offers.
From our portal, schedule your candidate interviews and extend job offers directly online.

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Need a developer ASAP? Schedule a meeting here

Table of Contents

Introduction

What is a Javascript Developer?

Javascript is a programming language that is widely used for creating interactive and dynamic web pages. It is a client-side scripting language that runs on the user’s web browser, allowing developers to create dynamic effects and animations on web pages. Javascript is a versatile language that can be used for a wide range of applications, from simple form validation to complex web applications. It is an essential tool for web developers, and hiring a skilled Javascript developer can help businesses create engaging and interactive web experiences for their users. With its popularity and versatility, Javascript is a must-know language for any web developer.

How popular is Javascript?

Javascript is one of the most popular programming languages in the world. It is used by millions of developers to create dynamic and interactive web pages, web applications, and mobile apps. According to the Stack Overflow Developer Survey 2020, Javascript is the most commonly used programming language for the eighth year in a row. It is also the most popular language on GitHub, with over 2.3 million repositories. The popularity of Javascript can be attributed to its versatility, ease of use, and the fact that it is supported by all major web browsers. As a result, there is a high demand for skilled Javascript developers in the job market, making it a lucrative career choice for aspiring developers.

Where to find a Javascript Developer?

If you’re looking to hire a Javascript developer, you may be wondering where to start your search. There are a few different avenues you can explore to find the right candidate for your needs. One option is to post a job listing on a job board or freelance platform. This can be a good way to reach a large pool of potential candidates, but it can also be time-consuming to sift through applications and resumes.

Another option is to reach out to your network and ask for referrals. If you know other developers or people in the tech industry, they may be able to recommend someone who would be a good fit for your project. However, this approach can be limiting if you don’t have a large network or if you’re looking for a specific skill set.

Why should you hire a Javascript Developer?

Javascript is one of the most popular programming languages in the world, and for good reason. It is versatile, powerful, and can be used to create a wide range of applications and websites. If you are looking to build a website or application that requires dynamic and interactive features, then hiring a Javascript developer is a must.

Here are some reasons why you should hire a Javascript developer:

  1. Expertise in Javascript: Javascript developers are experts in the language and have a deep understanding of its capabilities and limitations. They can help you build complex applications and websites that are both functional and user-friendly.
  2. Cross-platform compatibility: Javascript is a cross-platform language, which means that it can be used to build applications and websites that work on multiple platforms, including desktops, mobile devices, and tablets. This makes it an ideal choice for businesses that want to reach a wider audience.
  3. Interactive user interfaces: Javascript is known for its ability to create interactive user interfaces that engage users and keep them coming back for more. With the help of a Javascript developer, you can create dynamic and engaging user interfaces that will help you stand out from the competition.
  4. Integration with other technologies: Javascript can be easily integrated with other technologies, such as HTML, CSS, and various APIs. This makes it an ideal choice for businesses that want to build complex applications that require integration with other technologies.
  5. Faster development time: Javascript is a high-level language that is easy to learn and use. This means that Javascript developers can build applications and websites faster than developers who use other programming languages.

In conclusion, hiring a Javascript developer is a smart choice for businesses that want to build dynamic and interactive applications and websites. With their expertise in the language, cross-platform compatibility, ability to create interactive user interfaces, integration with other technologies, and faster development time, Javascript developers can help you take your business to the next level.

Hiring

Job Description Template

For a helpful job description template, click here.

How to interview a Javascript Developer?

When it comes to hiring a Javascript developer, the interview process is crucial. It’s important to ask the right questions and assess the candidate’s technical skills, experience, and problem-solving abilities. Here are some tips on how to conduct an effective interview for a Javascript developer.

Firstly, start by asking the candidate about their experience with Javascript. Ask them about the projects they have worked on, the frameworks they are familiar with, and their experience with front-end and back-end development. This will give you an idea of their technical skills and expertise.

Secondly, ask the candidate to solve a coding problem or challenge. This will help you assess their problem-solving abilities and their approach to coding. You can also ask them to explain their thought process and how they arrived at their solution. This will give you an insight into their coding style and their ability to work under pressure.

Lastly, ask the candidate about their communication skills and their ability to work in a team. Javascript developers often work in teams, so it’s important to assess their ability to collaborate and communicate effectively. Ask them about their experience working in a team, how they handle conflicts, and how they communicate with their team members. This will help you determine if they are a good fit for your team and if they can work well with others. By following these tips, you can conduct an effective interview and hire the right Javascript developer for your team.

Interview questions and expected answers

When you hire with CoDev, we use third-party coding tests and expert technical interviews to evaluate candidates. That said, here are sample questions that might be helpful in your own interviews:

  1. What is your experience with Javascript frameworks?
    Expected answer: The candidate should be able to name at least one framework they have worked with, such as React, Angular, or Vue.
  2. How do you handle errors in Javascript?
    Expected answer: The candidate should be able to explain how they use try-catch blocks and console.log() to debug errors.
  3. Can you explain the difference between let, const, and var in Javascript?
    Expected answer: The candidate should be able to explain the differences in scope and mutability between these three variable declarations.
  4. How do you handle asynchronous code in Javascript?
    Expected answer: The candidate should be able to explain how they use callbacks, promises, or async/await to handle asynchronous code.
  5. Have you worked with any Javascript testing frameworks?
    Expected answer: The candidate should be able to name at least one testing framework they have used, such as Jest or Mocha.
  6. Can you explain the concept of closures in Javascript?
    Expected answer: The candidate should be able to explain how closures allow functions to access variables from their parent scope.
  7. Have you worked with any Javascript build tools?
    Expected answer: The candidate should be able to name at least one build tool they have used, such as Webpack or Gulp.
  8. Can you explain the difference between prototypal inheritance and classical inheritance in Javascript?
    Expected answer: The candidate should be able to explain the differences in how objects inherit properties and methods in these two inheritance models.
  9. Have you worked with any Javascript data visualization libraries?
    Expected answer: The candidate should be able to name at least one data visualization library they have used, such as D3.js or Chart.js.
  10. Can you explain how you would optimize the performance of a Javascript application?
    Expected answer: The candidate should be able to explain how they would use techniques such as code splitting, lazy loading, and caching to improve the performance of a Javascript application.

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