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Node.js

Hire the Best Offshore Node.js Developers

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How to Hire the Best Node.js Developers

The key to hiring the best Node.js developers lies in having at least a basic understanding of Node.js and the technologies related to it. In this guide, let us go through important information regarding this technology, as well as the essential skills and traits you must look for in your potential Node.js developers.

Node.js is server-side runtime environment that enhances JavaScript (which is a popular language used to develop apps in the browser). With the addition of Node.js, developers can now work on the front-end, and even away from the browser.

This platform is powered by Google V8 engine, which is the same runtime as in Google Chrome that executes JavaScript in the front-end. This means that developers can perform debugging tasks with Google developer tools; there are also Node.js debugging features by default in Chrome 57+ which Node.js developers can use to eliminate errors both in front-end and back-end.

The Node.js community is also big and friendly, and any author can publish code or create modules in a public repository. Moreover, there are more than 475,000 code packages in the NPM alone. When your Node.js developer comes across some challenge or task new to them, there is probably already a solution shared in the community.

Node.js is particularly great in these areas:

  • Chat - Node.js works wonders with messaging chat applications, especially in dealing with multiple users, big traffic, intensive data, and performance across multiple devices.
  • Server-side web applications - Due to HTML, this is not a typical use of Node. But when paired with Express.js, a developer can make classic web applications on the server-side with Node.js. While you can be sure to build these with JavaScript, using Node can simplify the development.
  • Data streaming - With HTTP requests and responses which are data streams, Node.js can also be used to create positive features, such as file processing while they are still being uploaded (e.g. for audio/video encoding).
  • Monitoring dashboards - Node.js can also be used to make system dashboards to collect real-time data about website visitors and visualisations. Seeing user statistics and what they are doing on your websites can be greatly beneficial for your business.

What are the benefits of using Node.js?

JavaScript along with JSON has drastically changed and improved web development. Moreover, integrating Node.js with it to be able to work on the server-side as well as on the browser has become a trend lately.

Below, let’s discuss in detail the benefits and advantages you get with Node.js, and why you should use the platform:

Everyone knows JavaScript
Because of JavaScript’s popularity, every web developer has had an experience coding a little bit of JavaScript sometime in their career. It is difficult to find great developers nowadays, so as you pick a web platform, it may be a smart decision to move forward with a technology whose language is known by every web developer.

You get fast and flexible applications
Node.js uses the Google’s V8 engines—V8 compiles JavaScript into a native machine code, which is why it is able to compile and execute it at lightning speeds. As a result, applications built on top of Node.js are fast and flexible applications that are capable of handling multiple simultaneous connections with high throughput.

Paypal, after deploying Node.js applications, reported 35% less in their response time with twice the number of requests received per second.

Node.js is idea for building real-time web applications
Node.js has amazing features especially for creating and developing real-time applications such as chatting and gaming applications. This runtime environment is also a great choice for programs that require an event-based server or non-blocking driven servers.

You only need a single code base
A Node.js developer writes code for both the server-side and the client-side in JavaScript; this makes it easy to send data between the server and the client for synchronisation.

A web app framework built with Node.js executes the same codebase, regardless of whether it is on the client-side or the server-side.  

Here are other benefits you get when you build your applications with Node.js:

  • Good for beginner developers since JavaScript is simple to learn and it has rich frameworks (Angular, Node, Backbone, Ember)
  • You get to keep your data in native JSON format in your database
  • Node.js has multiple modules (NPM, Grunt, etc.) and it also has a supportive community
  • It is ideal for creating real-time apps, such as chats and games
  • Great for data streaming, such as audio and video
  • Node.js is sponsored by Linux Foundation as well as PayPal, Microsoft, Walmart, Joylent
  • Has a wide range of hosting options

What are some best practices in Node.js development?

Make use of the same style-guide
Especially in a company with hundreds of developers, following this best practice can be quite challenging, but it has to be done to make your processes more efficient. As much as possible, have everyone agree on the set of rules.

It may be hard to do this, so one possible solution you can use is to consult a seasoned developer as to which rules will be included in the style guide and which won’t, and then ask the help of other developers involved. The goal is to have a final decision that everyone agrees with.

Prioritise security
In this digital age, security has become more important than ever. It helps to review your code with the help of professionals who are experts in security.

To help you improve your security knowledge, there are also plenty of resources readily available online which you can utilise. Here are some of them:

Directly use new browser APIs
Another great practice when developing apps on top of Node.js is to start writing modules using new browser APIs, polyfilling Node.js if needed. Doing this will ship smaller JavaScript assets to the browser, which results in a faster page load time.

Adopt the Twelve-Factor app principles
The Twelve-Factor application principles actually describe the best practices in writing and building web applications. Here are the following areas covered by this manifesto:

  • One codebase tracked in revision control, many deploys
  • Explicitly declare and isolate dependencies
  • Store config in the environment
  • Treat backing services as attached resources
  • Strictly separate build and run stages
  • Execute the app as one or more stateless processes
  • Export services via port binding
  • Scale out via the process model
  • Maximize robustness with fast startup and graceful shutdown
  • Keep development, staging, and production as similar as possible
  • Treat logs as event streams
  • Run admin/management tasks as one-off processes

Pick up the ECMAScript features
As a Node.js developer, learning the new ECMAScript features can help increase your productivity. With these features, you are able to write more self-explanatory code.

Here are some ECMAScript features that, although not new, are considered favourites by many developers:

  • Spread syntax
  • Rest parameters
  • Destructuring
  • Async functions

What technical skills should you look for when hiring Node.js developers?

Knowledge of and experience in working with Node.js Frameworks
When looking for Node.js developers, the first thing you must look for is obviously their knowledge of Node.js and their practical experience.

Express is the foundational Node.js framework that most Node.js developers must know. Moreover, frameworks such as Koa.js, Hapi, and Total.js are other technologies that developers must know to be able to expand the basic functionalities of Express.

Other skills you must look for in your candidates are Model-View-Controller (MVC) frameworks like Strongloop, Sinatra, and Rails. Full-stack MVC frameworks such as Keystone.is, Meteor, ActionHero, and Derby, on the other hand, offer more features out of the box.

RESTful APIs and API Communications
Great Node.js developers are proficient in RESTful APIs; consequently, they know how to interpret existing API codes as well as to adopt in on the projects they are currently working on. They know how to handle multiple systems and how they interact with each other.

Asynchronous Programming
Asynchronous programming, which is also called non-blocking I/O, is simply what Node.js is all about. It only makes sense that Node.js developers are knowledgeable in asynchronous programming and its workarounds.

With non-blocking I/O, developers can be more efficient and productive as the waiting time for requests can be significantly reduced, and two or more functions can be executed at the same time.

It is important to note that asynchronous programming is a fairly new concept and method. Node.js developers must understand its workarounds and they must consider its quirks to be able to perform appropriate actions.

Database Schema Creation
Another skill that good Node.js developers possess is database management skills. To be able to build Node.js applications successfully, a Node.js developer must be able to create database schemes that are not only efficient, but are also representative of your company’s business processes.

Great developers must integrate multiple data sources and databases into one seamless system. With a skilled Node.js developer who has strong database management skills, you are sure to improve your business workflows and processes.

What is the usual rate for Node.js developers?

There are several factors to consider when estimating the cost of your Node.js development project. Some of these factors include the complexity of your app, the project duration, and the level of expertise you need.

To give you something to start with, here is a table showing the annual salaries and hourly rates of Node.js developers from different countries. Figures and estimates are taken from PayScale.

  Average Node.js Developer Annual Salary Average Node.js Developer Hourly Rate
United Kingdom GBP 40,303 GBP 31.35
United States USD 85,310 USD 49.24
Canada CAD 66,670 CAD 30.09
Australia AUD 65,674 AUD 30.52

Searching for Node.js developers locally is the usual route many businesses take. However, there are also companies and organisations from startups to large tech firms which are looking for other cost-efficient and quick ways to find the tech talent they need. These startups and tech firms are able to build their development teams fast and hassle-free through IT outsourcing.

Cloud Employee strives to be every startup and SME’s reliable IT outsourcing partner. We help these firms find smart and cost-effective alternatives to hiring expert Node.js developers, which, ultimately, is crucial in expanding the business. Our hiring solutions and competitive industry rates not only help you find and hire skilled Node.js developers but also save you up to 65% on overhead costs.    

What interview techniques should you use to hire the best Node.js developer?

When hiring Node.js developers, and tech talents in general, keep in mind that the purpose of the interview is to evaluate the candidate’s ability within a limited time, and not to merely pose difficult and challenging tasks or problems.

There are a lot of readily available resources online shedding light on the best practices in hiring software developers. Some of these great practices include exploring external resources, using referrals, as well as asking the right questions.

Since you are interviewing tech talents, it only makes sense to conduct technical tests. While they have skills listed down in their CVs, witnessing first-hand how a candidate approaches and solves problems can be a better help in gauging their skills.

Here are a few questions and problems you can ask as a test:  

Q: What is the difference between Node.js and Ajax?

A: Both of these technologies are the advanced implementations of JavaScript but they serve totally different purposes:

AJAX (short for Asynchronous JavaScript and XML) is a client-side technology which is used primarily for updating contents or sections of a page without having to update the entire page.  

Node.js, on the other hand, is a server-side technology which is used for developing server software. Node.js makes it possible to develop a database system with JS since it is executed by a server and not a browser.

Q: Explain the role of REPL in Node.js.

A: REPL (Read Eval Print Loop), is a virtual environment that, as its name suggests, performs these tasks: Read, Evaluate, Print, and Loop. The REPL in Node.js is used to execute ad-hoc JavaScript elements, as well as to test, debug, or experiment on Node.js/JavaScript code.

Q: What are “streams” in Node.js? Explain the different types of streams present in Node.js.

A: In Node.js, streams are objects allowing the reading of data from the source and the writing of data to the destination to be a continuous process.

There are four fundamental types of streams within Node.js:

  • Writable - streams that facilitate the writing operation (for example, fs.createWriteStream()).
  • Readable - streams that facilitate the reading operation (for example, fs.createReadStream()).
  • Duplex - streams that are both Readable and Writable (for example, net.Socket).
  • Transform - Duplex streams that perform computations based on the available input and can modify or transform the data as it is written and read (for example, zlib.createDeflate()).

Q: Name the types of API functions in Node.js.

A: There are two types of functions in Node.js:

#1: Blocking functions

In this function, all other code is blocked from executing until an I/O event that is being waited on occurs. Blocking functions execute synchronously. Here is an example:

const fs = require('fs');
const data = fs.readFileSync('/file.md'); // blocks here until file is read
console.log(data);
// moreWork(); will run after console.log

Taking a look at this code, the second line blocks the execution of additional JavaScript until the file is read. Moreover, moreWork () will only be called after console.log.

#2: Non-blocking functions

In a non-blocking operation, multiple I/O calls can be performed without having to wait for the execution of the program being halted. Non-blocking functions execute asynchronously. 

Take a look at this example:

const fs = require('fs');
fs.readFile('/file.md', (err, data) => {
if (err) throw err;
console.log(data);
});
// moreWork(); will run before console.log

fs.readFile () is non-blocking, so moreWork () does not need to wait for the file read to complete before being called.

How can Cloud Employee help you?

A UK-managed IT outsourcing provider, Cloud Employee bridges startups and SMEs to the Philippines’ growing pool of expert IT talents at competitive prices. With Cloud Employee, you can hire offshore Node.js developers who work exclusively for you.

Hiring your offshore Node.js developer is simple and easy with our custom recruitment process. Simply send us your staffing requirements and our team sources for Node.js developers that meet your criteria. We then give you a shortlist of pre-screened candidate CVs, and you personally pick the developers you want to interview and invite for technical testing. Our custom recruitment process gives you the freedom to hire offshore Node.js developers without any recruitment fees.

Upon hiring, your offshore Node.js developers works 100% exclusively for you on your preferred hours. They report directly to you and use your preferred tools making them an effective part of your team.

Meanwhile, we provide your offshore Node.js developers with full IT support and fast internet connection in our modern offices. In addition, Cloud Employee looks after all administrative concerns, giving you the freedom to focus on managing your team and running your business.

Our offshore Node.js developers can help you with creating and modifying web servers, generating dynamic page content, and collecting form data among many others. With Cloud Employee, you can hire offshore Node.js developers with a broad range of skill sets including JavaScript, Typescript, ES6 (ECMAScript6), Socket.io, Express.js, Grunt, Gulp, Karma, Jasmin, Mocha, MongoDB.

What is the dedicated developer model?

Cloud Employee employs a Dedicated Developer Model that is instrumental in helping our clients avoid the risks and extra costs of traditional outsourcing.

What makes this model special? With the dedicated developer setup, the dedicated offshore Node.js developer or development team you will hire with us will be seamlessly added to your in-house team in as fast as two weeks. As their name suggests, dedicated developers work exclusively for you and use only your processes, tools, and standards.

Thanks to the hiring flexibility that it offers, this model is considered the best engagement model when outsourcing. Should you need to scale your development team according to your business’ needs at any point in the development phase, it can be easily and efficiently done with this model.

On top of this, you only pay a single sum of money. This includes the offshore team member’s monthly salary and the outsourcing provider’s fee—and nothing more.

Advantages

  • The best choice for long-term projects that have a constantly changing scope and undefined project specifications
  • Ideal for projects with an indefinite project scope as long as there is a predictable budget
  • Clients have full control of the processes from recruitment to the actual management of the outsourced dedicated Node.js developer or development team.
  • Clients personally monitor and assess the quality of performance and output of the outsourced Node.js team
  • Since the offshore dedicated Node.js team works exclusively for you, they understand your objectives, goals, standards, and expectations clearly; it is easier to engage them and motivate them compared to freelancers

In general, the dedicated hiring model suits these businesses the most:

  • Businesses which want to work with a Node.js development team that works exclusively for their project
  • Businesses which want to cut down their hiring and recruitment costs
  • Businesses which prefer flexibility and scalability, especially while in the middle of the development

Cloud Employee is trusted by more than a hundred startups and SMEs from all over the world for their JavaScript and Node.js development needs because of this convenient and client-oriented model. Through the model and the setup we offer, our developers follow our clients’ time zones; this means that they work together at the same time, as if part of their in-house team. This reduces the risks and hassle of miscommunication and other inconveniences.

We offer all of these services at competitive industry rates, which makes us the number one choice and the best IT outsourcing partner for many startups and SMEs.

WHY HIRE OFFSHORE NODE.JS DEVELOPERS WITH CLOUD EMPLOYEE

  • Access to the best tech talent in the Philippines
  • End-to-end Client Control from custom-recruitment to direct developer management
  • 100% Dedicated Developers working at the same time-zone
  • Full Client Support with our After-Care Team
  • Savings of up to 65% or more

Testimonials

  • "Been with Cloud Employee for years and I’m very happy with Clarence, he is doing great. He is very polite, and confident in giving suggestions and feedback."

    Steven Brown, Justfone
  • "It was such a pleasure having Roi and Dennis here in Sweden. It was a great idea inviting them here as we got to know them a lot better. They’re doing so well and they’re very easy to communicate with, never had any problems with them."

    Martin Augustsson, QLogic AB
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