Hire JavaScript developers on OfferZen

To put together a job description for a Vue.js developer, check out our guide on creating a role scorecard here, and use our downloadable scorecard template. When it comes to adding required skills to your job description, check out our list of key skills for Vue.js developers above.

By putting together a good role scorecard, it will be easier to come up with the practical definition of the right person for the role you are trying to fill. You are then ready to set up your public-facing job advert.

As JavaScript can be used for both the front end as well as back end, there’s a broad range of technical skills to look out for when hiring JavaScript developers. This includes:

• JavaScript frameworks such as React, Angular and Vue.js.
• JavaScript libraries such as jQuery, Lodash, and Moment.js.
• Developers should have experience working with modern JavaScript features such as ES6+, async/await, and Promises.
• As JavaScript is frequently used within web development, developers should have a good understanding of HTML and CSS.
• Familiarity with tools such as Webpack, Babel, and NPM and how to use them to build JavaScript applications.
• Testing frameworks such as Jest, Mocha, and Selenium.
• Experience debugging JavaScript code, as well as using browser developer tools and other debugging tools and technologies.

Here are some of the most common questions you can expect JavaScript developers to be able to answer:

• Have you used any JavaScript frameworks or libraries such as React, Angular, or Vue.js? Can you discuss your experience and any projects you have worked on using these technologies?
• What are the pros and cons of your favorite framework or library?
• Can you tell me about a time when you had to debug a complex JavaScript application?
• How do you ensure the performance of JavaScript applications? Can you share any techniques, strategies, or tools you have used to optimize the performance of JavaScript code?
• Can you share any experience you have with browser compatibility and polyfills? How do you ensure that JavaScript code runs consistently across different browsers?
• What are some of your favorite JavaScript development tools and why?
• What are the different data types in JavaScript?
• What is the difference between a function declaration and a function expression?
• What are closures?
• What is hoisting?
• What is the event loop?
• What is the DOM?
• What is the difference between == and === ?
• What is the difference between synchronous and asynchronous code?
• How do you handle asynchronous operations in JavaScript? Can you explain the concept of callbacks, promises, and async/await?

JavaScript developer salaries can vary widely depending on company size, industry, individual experience and skills, as well as type of work. These factors all influence the salary a company will offer to a prospective hire.

That said, check out our detailed breakdown for JavaScript developer salaries in South Africa.

View our developer salary hub for more salary information, including programming languages, industries, and frameworks.

It's easier than ever to tap into a global pool of tech talent, and South Africa offers a thriving marketplace of developers. For employers, hiring JavaScript developers in South Africa provides several advantages:

• A large talent pool with an estimated 121 000 developers in the country.
• World-class quality with developers that code in widely-used languages and frameworks, and a growing line-up of successful tech startups.
• A diverse talent pool that helps to avoid groupthink and drive more profitable businesses.
• Lower employment costs comparing favourably to more expensive markets like the UK and the Netherlands.‍

Read more:

• Get more details on the benefits of hiring South African developers.
• Get additional South African developer hiring resources.
• Read about other hiring teams that successfully hired South African developers, like Albatros, TROOP, Equal Experts, and xneelo

JavaScript was created in 1995 by Brendan Eich at Netscape. It was originally designed to be a scripting language for use with Netscape Navigator, the most popular web browser at the time.

JavaScript quickly became popular as web developers realized its potential to add dynamic and interactive elements to their web pages. In 1996, Netscape submitted JavaScript to the European Computer Manufacturers Association (ECMA) for standardization. ECMA adopted JavaScript as the ECMAScript standard in 1997.

JavaScript has evolved significantly since its creation. The ECMAScript standard has been updated several times, adding new features and capabilities to the language. Today, JavaScript is one of the most popular programming languages in the world. It is used by millions of web developers to create dynamic and interactive web applications.