JavaScript

What skills and tools should a JavaScript developer have?

When choosing a JavaScript developer, you must clearly understand what tasks he will perform on the project. This determines what tools, frameworks and libraries he can work with to successfully implement the product. We at AVADA MEDIA can cover any customer needs. Our staff includes more than 20 qualified specialists at the Middle and Senior levels, whose stack includes most of the latest technologies. Let's consider the main ones:

Vue.js

The progressive JavaScript framework is ideal for developing web applications and SPAs of any complexity. It allows you to create dynamic, high-performance interfaces that are able to send and receive requests from the server without reloading the page.

Due to its lightweight nature and abundance of tools that speed up the work of specialists, Vue.js is also often used to create an MVP - a minimum viable product.

React.js

React.js is a JavaScript library created by Facebook developers. It uses a virtual DOM representation to efficiently update the user interface, thereby ensuring high performance and responsiveness of the client side of sites and web applications.

React is based on a component-based architecture, which allows the user interface to be broken down into small, independent components. This makes the code more modular and makes it possible to reuse existing components, which significantly speeds up the speed of technical implementation of the UI.

Node.js

This JavaScript runtime is based on Google Chrome's V8 engine, which extends the language's capabilities and makes it suitable for developing server-side programs. One of the main advantages of Node.js is its asynchronous I/O model. It allows you to handle a large number of simultaneous connections and update data in real time without blocking the execution thread. This provides high code performance that rivals many server-side languages such as PHP and Python.

Thanks to its asynchronous nature, Node.js is often used to create chats, games, streaming and other solutions that require instantaneous processing of many user requests.

What other tools will you need?

Also, for effective work and interaction in a team, a JavaScript developer must have a set of additional tools:

• HTML and CSS . These tools define the structure and style of web pages, so to implement full-fledged front-end applications, a JavaScript developer must be able to work with them. Additionally, JS is used to manipulate the DOM, which represents the structure of an HTML document, hence knowledge of HTML is necessary for a specialist to effectively interact with elements.
• Git . Version control helps you save created projects, share source code, and work effectively as a team.
• Ajax/Fetch API . Ajax creates asynchronous requests to the server to quickly send and receive current data. The Fetch API essentially performs the same task, and is a newer implementation of the approach.
• SEO tools . In addition to writing code, a JavaScript developer optimizes website pages for search engines and must be able to work with SEO tools. With a competent approach at the resource development stage, you can save a significant part of your marketing budget in the future.
• RESTful . Even if a JavaScript developer works on the front-end of your product, he must know how to implement data exchange protocols between the client and server. At a minimum, he should have a clear understanding of what methods can be used to make requests to the server and what statuses can be returned.

How to properly test the competence of a JavaScript developer?

Before connecting a JavaScript developer to a project and trusting him to perform real tasks, you should make sure of his competencies. You can do this in different ways:

• Explore his previous projects. Ask the candidate to provide code and a portfolio of projects. Analyze the quality of the code, the patterns used, the structure of projects and their performance. Also pay attention to whether the specialist has experience in your niche.
• Conduct a technical interview. Ask the candidate to answer technical questions about JavaScript and the frameworks you plan to use in your project. You can start with basic things like syntax, functions, objects, data structures, also ask about asynchronous programming, DOM, event handling and algorithms.
• Architectural issues. Discuss with the candidate the architectural solutions they used to create an extensive web application. This may include questions about project structure, use of frameworks, state management, scalability, etc.
• Code review. Ask the candidate to go through a code review where he must analyze and correct another developer's code. This will help assess his ability to read and understand other people's code and his ability to give constructive feedback.
• Practical task. Ask a developer to perform a real task in JavaScript or a JS framework that you plan to use in your project to evaluate how quickly and effectively the candidate works in practice.

At the stage of hiring a JavaScript programmer, you must clearly understand that this is the person you were looking for for your project. Our JS developers are ready to pass any technical interview and confirm their qualifications, just schedule an appointment.

How to hire remote JavaScript developers from AVADA MEDIA

In AVADA MEDIA you can find a JavaScript developer who will fully meet the requirements of your project - in terms of knowledge, experience and skill level. At the same time, you do not need to engage in independent recruitment, waste time on onboarding, team building and other work issues. You simply pay for the specialist’s time and get results.

We have compiled a small guide on how to hire a developer in our company:

• Define project requirements . Describe clear requirements for the project: niche, stack, deadline, technical characteristics. If you plan to hire a developer or team from another country, it is important to consider a work schedule that will be optimal for different time zones.
• Selection of candidates . We review the requirements and select the most suitable candidates from our pool of JavaScript developers. We also provide you with access to the CV database, so, if you wish, you can choose a specialist yourself.
• Qualification check . To ensure the professionalism and qualifications of candidates, you can conduct a technical interview with them.
• Conclusion of an agreement . When a suitable candidate is found, we sign an NDA and a contract, which specifies the terms, conditions, and quality criteria for the work done.
• Beginning of work . After the conclusion of the contract, selected specialists begin solving problems under guidance. For the entire period of cooperation, they actually become part of your internal team and work exclusively on your project.

What kind of projects does our JavaScript developer have experience in developing?

Our JavaScript developers have experience in almost all business niches:

• E-commerce created interfaces for online stores, marketplaces and other trading platforms.
• FinTech – implemented functional web applications for the banking sector, cryptocurrency exchanges, exchangers and crypto wallets.
• Education – we created LMS platforms from scratch for learning, storing educational courses and monitoring progress.
• Business automation tools developed interfaces for CRM, ERP, accounting systems, admin panels and other tools aimed at optimizing the company’s internal processes.

In our portfolio you can learn more about each of our projects: how the development went, what difficulties the team faced, how they overcame them and what the final result was. You can also always read reviews from our clients.

Conclusion

AVADA MEDIA has a staff of highly qualified JavaScript developers, whose experience and knowledge you can use in your project. We can cooperate on an outsourcing model - that is, take your product or individual stages for implementation “from scratch”, and also provide outstaffing specialists. In the second case, you hire only the developers you need, set priorities yourself, set tasks and monitor their implementation.