juniorDevOps
What is DevOps?
Updated Apr 28, 2026
Short answer
DevOps is a cultural and technical methodology that integrates software development (Dev) and IT operations (Ops).
Deep explanation
It aims to shorten the systems development life cycle and provide continuous delivery with high software quality. DevOps encompasses culture, automation, lean principles, measurement, and sharing (CALMS). It breaks down silos between teams to ensure rapid, reliable, and secure software releases.
Real-world example
Using GitLab CI to automatically run unit tests every time a developer pushes code, and alerting the team in Slack if tests fail.
Common mistakes
- Thinking DevOps is just a toolchain or a specific job title rather than a cultural shift.
Follow-up questions
- What does CALMS stand for?