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How To Hire a JavaScript Developer

Complete with job descriptions, skill profiles, and interview templates. Use this JavaScript Developer hiring guide to help you make the right decisions, fast.

JavaScript Developer Recruitment Guide

What does a JavaScript Developer do?

JavaScript Developers are very experienced and knowledgeable with the JavaScript programming languages and a fundamental knowledge or speciality in the various frameworks that are on offer. Through this combination of experience and knowledge they’re able to design and implement pieces of software that connect back-end programming with front end elements like databases.

Day to day tasks of a JavaScript Developer

Skills assessment

JavaScript Developer definition

A JavaScript Developer takes the responsibility in a web development ecosystem for all the front-end logic which controls how a user would interact with different visual elements using various JavaScript libraries.

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JavaScript Developer Hiring Process

Step 1: Understand the role
Step 2: Source Applicants
Step 3: Skills Assessment
Step 4: Interview
Step 5: Hire

Build the Ideal Candidate Profile​

To find the best person for the role, you need to understand what the role involves. You can complete this with the hiring manager to define the role, its contribution, and the skills needed.

Write A Job Description Based On Skills

Once you understand the requirements for the role, you’ll need to understand the skills for success. You can then write an effective job description to promote your role.

Selecting The Ideal Candidate

See which applicants have the right skills for the role. Send all your applicants a Vervoe skills assessment from the expert library, or customize one for your organization.

Interview Top Performers

Your skills assessment results will identify top performers. Focus your time on interviewing those that have met or exceeded your requirements. Assessment results will also help guide which skill areas to focus on in the interview.

Making An Offer

Once you assess your candidates against these skills, you’re ready to offer the top performer(s). You should base your offer on the value that the candidate would bring to your team and your business as a whole. It is also important to ensure your compensation and benefits packages are competitive in the industry and help you attract and retain the top talent.
Build the ideal candidate profile

Skills needed for a JavaScript Developer

The skills needed for a JavaScript Developer to be proficient at their role is a fundamental and consistently updated knowledge of JavaScript and what is happening in the industry with the different libraries. They will also need to know HTML and CSS as they have elements that will be affected by them. Finally, they will need to be good at testing so they can find and remove bugs before they go into production.

Pro Tip

For entry-level roles, you’re likely to receive a larger number of applications than you would for a senior position. Ensure you provide details about what is required of the role as this will help developers know if their skill set matches what the role entails, as the JavaScript eco-system is extremely broad and some developers specialise.


How to write a JavaScript Developer job description

Once you’ve determined the skills required for the role, you can write the job description to advertise for your position. Here’s what to include in your JavaScript Developer job description:

Job Title: What position are you hiring for?

Summary: What makes your company unique? What would it be like to work for you?

Responsibilities: An overview of the role’s day-to-day activities, and how the position contributes to the organization

Requirements: Skills a candidate must have to perform the job successfully

Benefits: Details of compensation, benefits, and any perks on offer

Pro Tip

In building your candidate profile, remember you’ve already identified what skills are needed to succeed in the role. Here’s where to list your “must-have” skills and maybe a couple of “nice-to-have” skills. For example, a JavaScript Developer should be using linting tools such as ESLint to ensure code is being written correctly so future developers looking at the code will be able to understand it too.

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Sample skill tests for a JavaScript Developer

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Question 1


Question Type: Code

You’re given a variable with the following string in the code section below, please write a piece of code which would output to console the position the string ‘sham’ is in the string below.

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Question 2


Question Type: Video

Your non-technical colleague asks you what a “prompt box” is. Record a short audio explaining a prompt box.

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Question 3


Question Type: Multiple Choice

What will be printed to console from this snippet of code?


How to interview a JavaScript Developer

Once your Vervoe skills assessment has surfaced the most qualified people for your open role, you can focus on interviewing these candidates. The interview should focus on any skills that require development that were highlighted from the skills assessment.

Now you know that candidates can do the job, the interview becomes more of a relationship building exercise where you can get to know the candidate on a more personal level, understand their motivations, and how they would fit in with the team.

Making An Offer

How much does it cost to hire a JavaScript Developer?

JavaScript Developers in the USA have reported salaries of around $107,529 according to ZipRecruiter and $108,766 according to Glassdoor USA. reports the salary for a Golang developer for the high end to be $145,000 and the low end to be $88,622.

JavaScript Developer Salary United States

In the United States a JavaScript Developer can be expected to receive a yearly salary of approximately $107,484 USD. This figure will be impacted by a number of factors such as, the location of the organization and the seniority of the role, such as being a tech lead.

JavaScript Developer Salary United Kingdom

JavaScript Developers in the United Kingdom have a reported yearly wage of £49,768. There are a handful of factors which need to be taken into consideration when this number is offered to candidates, for example, the industry of the organisation and the type of work that the role entails.

JavaScript Developer Salary Australia

Australia has a median salary of $108,766 AUD for JavaScript Developer. This figure will change based on many different elements when a salary is made for employees, for instance, the performance of the individual, certifications and industry of the organisation.