How to become a DevOps Engineer in 2024

William Imoh · Improve this Guide

If you are trying to get into tech or are already in tech and have been exploring roles across the industry, you must have come across Development and Operations (DevOps). In fact, DevOps is one of the highest-paying roles in the tech industry.

But what is DevOps, and how is it different from other roles?

DevOps is a software engineering approach that combines development (Dev) and operations (Ops) to shorten the software development lifecycle by embracing automation. It is a bridge between the development and operations teams.

While the primary goal of a software engineer is to design and build software solutions, a DevOps engineer has a key role in streamlining the software development and deployment pipeline, automating infrastructure provisioning, and enhancing the deployment process.

This guide provides in-depth knowledge on how to become a DevOps engineer, highlighting the mindset of DevOps engineers and the technical skills(including DevOps tools) required to become one. It also guides you on how you can find DevOps engineer jobs.

TL;DR:

DevOps combines development and operations to automate software delivery. To become a DevOps engineer, you should adopt a mindset of automation, risk awareness, systems thinking, and continuous learning. In addition to the mindset, follow the steps below:

• Step 1: Learn a programming language
• Step 2: Get comfortable with Linux and terminal
• Step 3: Version control and code hosting platforms
• Step 4: Networking fundamentals
• Step 5: Containerization
• Step 6: Cloud services
• Step 7: Continuous integration and delivery

Let’s dive into the essential skills required for a DevOps engineer.

Skills required to become a DevOps engineer

Operating system

A DevOps engineer should understand the operating system, especially Linux (distribution or any variant). This is because most of the servers in use are Linux-based, so having a solid foundation in the Linux OS is imperative for infrastructure management and troubleshooting.

Solid programming fundamentals

As a DevOps engineer, you will use your knowledge of programming languages and scripting languages (bash scripting, shell scripting, etc) to:

• Automate processes and frequent tasks
• Patch a security bug exposing your internal application to outside users
• Create automation tools, monitoring tools, and logging tools
• Create monitoring dashboards to visualize workload and resource usage

Hence, hands-on experience with programming is crucial to excel in your DevOps career.

Version control

A basic understanding of version control is one of the essential DevOps skills required for DevOps engineer jobs. In your DevOps career, you will likely work in a team rather than alone. Systems like Git facilitate collaboration in a team while providing a centralized repository for the code.

Networking fundamentals

Many modern-day applications are distributed systems that rely on networking. For instance, a single application could be composed of a frontend, backend, database, file server, etc., each residing on a separate server. For a seamless user experience, these separate entities should be able to communicate smoothly.

Containerization and orchestration

Containerization (or container technology) and orchestration help solve the issues of software deployment and resource utilization. Knowledge of containerization and orchestration helps reduce deployment time and allows you to scale applications quickly without downtime, resulting in a better user experience.

Cloud deployment

Procuring hardware to deploy the software is not always feasible and beneficial. Furthermore, once you purchase the hardware, you need more time and resources to manage the new hardware. Depending upon the complexity of the application, choosing the cloud instead of on-premise hardware can significantly reduce deployment time and cost.

Infrastructure as Code (IaC)

IaC can be seen as a superior form of automation for a DevOps engineer. IaC tools like Terraform and Amazon Cloud CDK allow the operations team to set up and manage infrastructure by simply changing a configuration file. This makes it easier to manage and scale the application.

So, how do you learn these essential skills? In what sequence do you acquire these skills?

The following section presents a complete DevOps roadmap on how you can learn these skills and become a DevOps engineer.

How to become a DevOps engineer: the DevOps roadmap

The internet is full of resources for learning DevOps and DevOps tools. Many of these guides lack structure and organization, resulting in a dilemma of where to start.

To help beginners learn DevOps in a structured manner, roadmap.sh has a beginner-friendly DevOps engineer roadmap that will help you land into DevOps engineer positions.

This section presents a concise version of the DevOps engineering roadmap. It is recommended that you implement real-world projects recommended in each stage of the roadmap. In the end, you can publish these DevOps projects to GitHub as an open-source project repository, and the repository will act as your portfolio and increase your exposure in the DevOps community.

Step 1: Learn a programming language

Programming language is essential to a DevOps engineer. I recommend you start with either Python or Go. Python is a popular language that is easier to learn and used in various projects involving backend development, writing machine learning algorithms, automating everyday tasks, etc.

Automate the Boring Stuff with Python is an excellent resource for learning Python and basic programming concepts. It will also come in handy when building automation tools.

To demonstrate your understanding of Python, you can create a web scraper (or other coding projects) that extracts a list of hotels, their address, prices, reviews, and locations from a site like booking.com.

Step 2: Get comfortable with Linux and the terminal

According to Gitnux, 92.4% of the world’s top 1 million servers run on Linux, and about 96.3% of the world’s top 1 million websites are powered by Unix-like operating systems, with Linux being one of the most widely used operating systems. This makes Linux a popular tool for all software engineers.

Furthermore, you should make the terminal your best friend. Some programs and packages may not have a GUI counterpart, and even when they exist, using the CLI(Command Line Interface) alternative is faster and easier to automate.

An excellent way to practice Linux for DevOps engineers is to install it on a thumb drive and try to do everyday tasks like changing the directory, creating new files and folders, editing files, searching for files and folders, etc., using Linux commands instead of using the GUI interface.

Step 3: Version control and code hosting platforms

Version control systems like Git make it easier for developers to track changes in their source code by maintaining a history of the changes. Combined with platforms like GitHub or Bitbucket, Git can facilitate developers to work collaboratively with each other.

This tutorial will help you learn Git basics and how to use Git for collaboration using Bitbucket, a code hosting platform.

For advanced concepts on git branching, refer to this site. Once you go through the tutorial, you can easily switch from Bitbucket to GitHub and GitLab, which are more popular among developers.

Step 4: Networking fundamentals

Learning networking fundamentals becomes vital to the DevOps team when working with software components constantly communicating with other services. Knowledge of networks comes in handy when setting up resources in the public cloud. At a minimum, you should clearly understand standard protocols(TCP/IP, UDP), routing, IP addressing, subnetting, and ports.

A DevOps engineer should have a sound knowledge of web servers like Nginx. Nginx allows you to serve your application on the web while handling reverse proxy and load balancing. Apache is another web server that provides similar features.

For your practice, you can create a simple frontend (or clone it from GitHub) and deploy it using Nginx or Apache.

Step 5: Containerization

An application developed by one developer may not work on other machines due to the difference in environment. To eliminate this issue, DevOps engineers use containerization tools like Docker.

Docker allows engineers to create consistent development, testing, and production environments. It also ensures the developed application is portable across different platforms.

Applications rely on multiple containers that communicate with each other. To facilitate the orchestration of these containers, you can use container orchestration tools like Kubernetes. The Docker Roadmap provides essential resources to help you master Docker and Kubernetes.

You can demonstrate your understanding of containerization tools by creating a simple project with frontend and back deployed as two separate containers. If you have already developed these components in the previous stages of the roadmap, re-use them to save time.

Alternatively, certifications like Docker Certified Associate and Certified Kubernetes Administrator can help you prove your knowledge.

Step 6: Cloud services

Cloud services like AWS, Azure, and Google Cloud Platform are some popular cloud providers that allow you to deploy your projects without investing in expensive hardware. Many cloud services across these cloud platforms are analogous.

If you are a beginner, start with AWS. It is the most widely used cloud platform. Once you are comfortable with AWS’s services and key concepts, you can deploy the application created in earlier stages to the AWS.

Alternatively, you could demonstrate your understanding by taking the certification exam from AWS. Becoming an AWS certified DevOps engineer helps you gain credibility for your DevOps skills.

Once comfortable launching your infrastructure using the GUI, you should learn about Infrastructure as Code(IaC). I recommend using Terraform for IaC as it is cloud-agnostic and popular among software developers and operations teams. Terraform allows you to set up and make changes to infrastructure resources by editing a configuration file, resulting in infrastructure automation.

Step 7: Continuous integration and delivery

Continuous Integration and Continuous Delivery (or Continuous Deployment) (CI/CD) is a set of practices aimed at automating and streamlining software changes from development to production.

Today, in practice, when you commit and push your changes to the remote repository (say GitHub), the tests kick-off; if the tests pass successfully, your changes are merged and then deployed to the staging and production server.

CI/CD is a combination of three skills: programming, writing configuration files, and Git. As such, you don’t need to learn new skills to implement CI/CD. However, some organizations use tools like CircleCI and Jenkins to simplify the process.

You can practice CI/CD using GitHub actions. GitHub provides a set of tutorials for the same. You can follow along those tutorials to get a good grasp of Continuous Integration and Continuous Deployment.

Finally, you can implement CICD in one of your projects created while learning previous skills in this roadmap.

Next, let’s discuss the mindset needed to become a DevOps engineer.

DevOps engineer’s mindset

To become a successful DevOps engineer and successfully embrace the DevOps culture, you must orient your thoughts around the following:

Automation

Software products or systems are prone to various errors, including human errors. Stress during work and the race against deadlines can increase the frequency of these errors. Automating processes helps reduce human error and eliminate boring tasks.

Risk awareness

DevOps engineers must understand the risks entangled with changes to a software system and deployment infrastructures. The risk should be minimized by utilizing automated testing, monitoring, and incremental changes.

Systems thinking

DevOps professionals or any member of the operations teams must understand how different components within a system communicate and interact with each other to deliver the desired solution. A graphical representation of the system can come in handy when fixing issues or knowledge transfer within the DevOps teams.

Continuous learning

A continuous learning and continuous improvement mindset is essential across all roles in software engineering, but its importance is amplified for a DevOps engineer. A DevOps engineer must continually learn about new technologies, tools, DevOps principles, and DevOps practices and implement the ones best suited to the project.

You may not have the DevOps mindset, but that is okay. You can build this mindset as you learn and grow into the role. Let us look at some technical skills required to become a DevOps engineer.

Who can become a DevOps engineer?

Anyone with the right skillset can become a DevOps engineer. Typically, it is easier to transition into a DevOps engineer role if you are a,

• Systems Engineer
• Backend Engineer
• Infrastructure Engineer

If you are one of the aspiring DevOps engineers, you are encouraged to learn the above skills and concepts. You can then apply for entry-level DevOps engineer jobs and intern DevOps positions. You may look for DevOps openings in local companies or remote job boards advertising DevOps engineer roles.

Depending on your current skill set and practical experience, the time to transition into a DevOps role will vary. However, following a structured learning path will help you gain a head start in your DevOps career.

What next?

The roadmap simplifies the DevOps journey by breaking it into learnable skills via the DevOps engineer roadmap. To effectively use the site, I encourage you to sign up on the platform and learn the desired skill by following the structured roadmap. You could explore additional roadmaps and advanced topics utilizing the search bar on the platform. The platform also allows you to:

• Keep track of your journey as you progress through a roadmap
• Draw your own roadmap or generate one using AI
• Create and share a roadmap for your team