What is the best programming language for DevOps?

There is no single "best" language — the right choice depends on what you are automating — but two languages cover most DevOps work.

Python is the default for automation, infrastructure-as-code tooling, and data/log processing. It has the widest library support, the biggest community, and most infrastructure tools (Ansible, most cloud SDKs) either are Python or expose a Python API.

Go is the default for building the tools themselves — CLIs, agents, and services. It compiles to a single static binary with no runtime to install, which matters when you need something to run identically across build servers, containers, and edge nodes. Docker, Kubernetes, and Terraform are all written in Go for this reason.

Beyond those two:

• Bash is unavoidable for glue scripting in CI/CD pipelines, even if you keep the real logic elsewhere.
• YAML/HCL are not general-purpose languages, but you will write more of them than anything else once you count pipeline configs, Kubernetes manifests, and Terraform.

If you are picking your first language for a DevOps role, start with Python — it is the most forgiving, has a tool for almost every task, and reads closely enough to pseudocode that you can pick up Go or Bash later without much friction.