Not by chance, JS is in the first position:
- Flexibility. Created products are reusable and not platform-specific.
- Rich interface. New functions are permanently developed for JS; many libraries and APIs exist.
- Versatility. Works well with other programming languages. Supports all operating systems, browsers, and mobile devices.
2. Copying Individuality – This point follows from the first. Because of client-side code execution, there is a risk of your site being copied by competitors. As a result, you risk losing your identity. This disadvantage is especially relevant for an environment such as e-commerce.
- Adding interactivity and dynamic content. For example, show or hide additional information at the click of a button, play audio and video on a web page, display animations, etc.
- Creating web and mobile apps, such as Netflix and Uber
- Creating games that work inside the browser, both 2D and 3D
- Creating stable web servers and server applications using Node.js
Have you already started the project, or are you starting from scratch?
If you’ve already started a project, figuring out what you’re looking for is easier. You’ve already decided what technologies and frameworks you need, so you just need to find the best developer with those skills. Then, you can easily list the requirements and determine who is the best fit for your project.
A front-end JS developer is a specialist responsible for processing data into a graphic user interface. He creates what a user sees in the browser and interacts with.
A back-end JS developer is a specialist who handles the server part of the project. In addition, he creates components and functions that are available for a user through the interface.
A full-stack JS developer is a broad specialist who can create application architecture and its user interface.
Whether you want a site with static content, a basic contact form, or a fully interactive user interface, you can rely on a front-end developer.
Here are some responsibilities of frontend JS developers:
- Development of front-end project from scratch;
- Design of user interfaces;
- Cross-browser and adaptive HTML5/CSS3 layout;
- Collaboration with back-end developers while creating RESTful API.
Back-end developers are responsible for databases and APIs. Their focus is not on presentation but on functions on the server. Don’t expect them to draw or design; that’s not their job. However, you already have a front-end developer who has done the custom part of the project. In that case, the back-end developer will connect the data to the front-end.
Responsibilities of back-end JS developers:
- Development of business logic and back and system for product support;
- Work with databases with the help of DBMS;
- Integration with external services;
- Testing and debugging of application components.
When to choose a full-stack developer?
Responsibilities of full-stack JS developers: Mix of back-end and full-stack duties.
But it doesn’t have to be that way.
We’ve carefully structured the information below to help you understand the basic skills.
- Fluency in HTML and CSS;
- Understanding of CSS preprocessors: Sass, Less, Stylus, etc.;
- Ability to work with Webpack module bundler, understanding of Babel transpiler working principles;
- Knowledge and working experience with popular frameworks and libraries: Angular, React, Nodejs, Vue.js, etc.;
- Experience or work with version control systems and repositories: Git, GitHub;
- Experience in working with databases and knowledge of query languages: SQL, MySql, NoSQL, MongoDB, etc.;
- Use of programming patterns: MVC, MVP, MVVM;
- The ability to work with image editors: Photoshop, Illustrator, etc., is an advantage.
In addition to that, basic technical skills include:
- Knowledge of web servers: Nginx, Apache, IIS;
- Ability to work with version control systems: Git;
- Knowledge of HTML and CSS – for better understanding and communication with interface team members;
- Knowledge of Windows Server, macOS X, Linux, and other operating systems;
- Knowledge of API (REST, SOAP) – less often;
- Unit test writing skills.
Development of internal and external parts of a website or an application means that a JS developer should at least possess the following skills:
- Knowledge of Node.js;
- Knowledge of HTML5 and CSS3 interface technologies;
- Knowledge of either of the front-end frameworks: Angular, React, etc.;
- Knowledge of either of the back-end frameworks: Express.js, Nest.js;
- Knowledge of one of the further mentioned databases: Oracle, MongoDB, SQLServer, and Redis;
- Understanding of API testing tools;
- Unit and End-to-End testing.
We mapped out the libraries to the potential objectives of your project:
The table lists only the most frequent use cases and examples of the libraries. Your case might be different. Visit Github to familiarize yourself with the list of additional libraries.
The job description should consist of six main sections:
General information about the company: Explain what your company does, its purpose, and its goals.
Project context: Have you already started working on a project or starting from scratch? Briefly describe the work, the outcome you want to achieve, and the services you seek.
Project Duration: Indicate whether it will be a small or large project.
Roles and Responsibilities: List daily responsibilities the developer will be required to perform on your project.
Budget: define an approximate budget. Note your preferred payment model.
How Much Does it Cost to Hire JS Developers?
Finding talented candidates to stay within the budget should also be considered when choosing a developer or a development team.
At JayDevs, we recruit developers who demonstrate tremendous potential or exceptional skill. We then take their skills and potential and polish them even further.
By partnering with JayDevs, you can take advantage of experienced in-house developers, reduce the cost of the traditional hiring process, and save time.
Interested? Tell us about your project so we can get to work!