Top 5 Tech Stack Skills You Need To Master in 2021

Technology is evolving at a rapid pace. The skills required from a tech professional in a particular function vary greatly.  In 2024, the job market for tech talent will not be the same as today and will require a higher demand on technological prowess and knowledge.

If you’re aiming for a spot in software development, nothing is better for your career than mastering the most in-demand technologies of 2021. Not only will it give you a boost in your interview applications, but it will also let you stay ahead of the market in the future.

There are dozens of software development skills and categories that are needed in workplaces. These skills are split into different categories in software such as DevOps, Back-end, Front-end, Quality Assurance, AI, and many more. But in this article, we bring you the top 5 tech stack skills you will need to land a spot with experienced developers and well-known tech industries.

What is a Tech Stack?

  • A technology stack or tech stack is a data library that encompasses specific technical knowledge and development tools to run software or programs. For example, your mobile applications are created from front-end tools such as React.js, native, Flutter, Java, Kotlin, and many more.

    A tech stack is divided into two systems: front-end & back-end. Back-end deals with the structure, library, and databases of a program or system with tools such as PHP, Python, SQL, etc., while Front-end is applied to Websites & and their respective UIs such as HTML, CSS, Java, etc.

Why use different tech stacks for your software applications?

  • These software stacks are the foundations of your applications, much like the girders to a building. The functionality and behavior of your application will depend on what stack you used. It determines:
  • How your app will work
  • How it will behave
  • It’s scalability
  • It’s purpose to your customers
  • Your choice of method of storage
  • And it’s capacity for your servers.

    As technology advances gradually, it’s important that you also learn new technologies, updates, and trends in the software industry to identify current and future points of improvements and problems that may occur in your software or application. Here are the top 5 tech stacks you need to learn in 2021:

5 Tech Stacks To Master in 2021

Front-end Stack (React, JavaScript, JQuery, HTML, etc.,)

  • The front-end stack deals with the client’s side. Client side means anything that a user can use or engage with on their screens. That said, the main focus of using the front-end stack is to create a smooth and accessible experience for customers. Your websites should be straightforward, concise, and simple for customers to view and interact with.

    There are two principal elements of a frontend stack. These are:
  1. HTML (Hypertext Markup Language) – it’s a markup language for creating and displaying electronic documents (web pages). They are the backbone in the organization and placement of content on a web page.
  2. CSS (Cascading Style Sheets) – It is responsible for the format and layout of the web pages. It includes the font styles, sizes, layout, color, and other aspects of a web page.

    If you’re aiming for a more interactive web display for your customers, you will use JavaScript. It’s a programming language that allows you to implement dynamic features on web pages; through its libraries (React, jQuery, and Ember) and frameworks (Angular.js, Ember.js, Vue.js).  

Back-end Stack (Python, PHP, SQL, etc.,)

  • The back-end stack, on the other hand, deals with the very architecture of the websites and applications you created, mostly not seen by many. They have the importance of keeping everything intact so that your applications will operate normally.

    The backend stack includes these elements:
  1. Programming languages – This creates logic for apps and websites. The codes link the web to a database. Some examples are JavaScript, PHP, and Python
  2. Frameworks – it provides support of applications based on a single programming language. Laravel, Django, and Ruby on Rails are few of the popular frameworks
  3. Servers – You need backend servers to manage client requests. Apache, Nginx, and Microsoft’s Internet Information Server (IIS) are great examples of web servers.
  4. Databases – It’s a digital space to store data (word document, web page, MP3 file). MongoDB, PostgreSQL, and MySQL are common databases.


  • One of the well-known tech stacks, MEAN offers web developers numerous benefits to develop efficient websites, open source and free.

    MEAN consists of:
  1. MongoDB (NoSQL database)
  2. Express.js backend web framework
  3. Angular.js frontend framework
  4. NodeJS open-source, cross-platform server

    MEAN provides a practical approach to creating fast and highly efficient apps. All the components speak JSON (JavaScript Object Notations) for data transmission and free module library access. This tech stack helps to build scalable software products and is great for building websites and web applications.


  • LAMP is an industry standard when it comes to tech stack models. In web development, it delivers the best cost efficiency, flexibility, and performance.

    It is an acronym that stands for:

    Linux (operating system)
    Apache (HTTP server)
    MySQL (relational database management)
    PHP (programming language, it can also be Perl or Python)

    All these stack layers are free and open source. Since this tech stack can run on any operating system, you can interchange or modify other components in the same stack. Use WAMP for Microsoft Windows or MAMP for MacOS.


  • Essentially MERN is similar to MEAN. The difference is that you change Angular.js with React.

    The key benefits of using MERN are the React integration, the ability to use codes on browsers and servers simultaneously, powerful library, and full-stack development option (frontend and backend).

    Additionally, React is known for its flexibility and performance in developing interactive user interfaces, which is much better compared to Angular’s.


It can be a bit overwhelming to choose and master these programming languages. Not everyone can master these tech stacks instantaneously, but these should serve as a guide for you on your scalability and future development projects.

Don’t learn any unnecessary skills just because they’re being used by well-known people and companies. Always weigh in what your current project should be when finished, how it will contribute to your customer’s experience, and it’s capability and flexibility to be improved in the future. Discover which tech stack should be on your list by researching and checking out the options above!

Miggy VdD
An aspiring writer aiming to change the value of companies one article at a time.