Hi everyone,
I’m trying to understand what a DevOps engineer must know to get started in this field.
What are the core skills and tools that are essential for a DevOps role? Also, should beginners focus more on coding or scripting, and which technologies should be learned first?
A DevOps engineer is expected to understand how software is built, deployed, and maintained, not just one tool or technology.
At the foundation, they need strong Linux and networking basics, along with Git for version control. Understanding how applications work (at least at a basic level) is important so deployments and issues make sense.
Core DevOps knowledge includes CI/CD pipelines, Docker and containers, and cloud platforms (AWS, Azure, or GCP). Most roles also expect familiarity with Kubernetes for orchestration and Infrastructure as Code tools like Terraform.
Equally important are monitoring and troubleshooting skills working with logs, metrics, alerts, and understanding system failures. Scripting (Bash or Python), automation, and good communication skills also matter a lot.
In short, a DevOps engineer should know systems + automation + cloud + collaboration, and be comfortable learning new tools as environments evolve.
If you’re starting out, DevOps is less about knowing every tool and more about understanding how systems run in real life.
At a minimum, a DevOps engineer should understand Linux fundamentals (processes, permissions, networking basics), Git, and how applications move from code to production. CI/CD concepts are core — you don’t need to master every tool, but you should know how pipelines work and be comfortable with something like GitHub Actions, GitLab CI, or Jenkins.
You should also know one cloud platform (AWS, Azure, or GCP), especially compute, storage, networking, and IAM. Containers are huge in real projects, so Docker basics and how Kubernetes works at a high level are important. For infrastructure, tools like Terraform are commonly used, even if you’re not writing complex setups at first.
For coding vs scripting: focus more on scripting and automation early on. Bash and Python are enough for most DevOps tasks. You don’t need deep application-level coding, but you do need to read code, debug configs, and automate repetitive work.
If you learn the flow — code → build → test → deploy → monitor — and build a few small projects around that, you’ll have a solid foundation for a DevOps role.