Definition
DevOps is a set of practices and a culture that brings together software development (Dev) and IT operations (Ops), which traditionally worked as separate teams with conflicting goals: developers wanted to ship changes, operations wanted stability. DevOps makes the same team responsible for building, deploying and running the software, supported by automation for testing, deployment, infrastructure and monitoring. The result is faster delivery and more reliable systems.
In a company, DevOps shows up as automated pipelines, infrastructure defined in code rather than configured by hand, monitoring and alerting that tells the team about problems before customers call, and on-call rotations where developers support what they built. It also shows up in metrics: how often you deploy, how long a change takes to reach production, how often changes fail and how fast you recover. Those 4 numbers describe the health of a software organisation.
DevOps has become the assumed way of running software, with platform engineering as its current evolution: an internal team builds a self-service platform so product teams deploy without needing infrastructure experts. AI now assists with monitoring, incident analysis and infrastructure code. The misconception is that DevOps is a job title or a tool. It is a way of organising responsibility so that the people who build software also own how it runs.
In practice
After adopting DevOps practices, a company cut the time from an approved feature to production from 6 weeks to 2 days, because the same team that wrote the code could deploy it through automated pipelines without filing tickets with a separate operations department.
Why it matters
DevOps determines how fast your technology organisation can move and how often it breaks. The 4 DevOps metrics are among the most useful numbers a CEO can ask a CTO for.
Frequently asked questions
- What does a DevOps engineer do?
- A DevOps engineer builds and maintains the automation that lets software be tested, deployed and operated reliably: CI/CD pipelines, infrastructure as code, monitoring, logging and cloud configuration. They work closely with developers to make deployment routine and recovery fast.
- What are the key DevOps metrics?
- The 4 widely used metrics are deployment frequency, lead time for changes, change failure rate and mean time to recovery. High-performing teams deploy on demand, ship changes in under a day, fail rarely and recover within an hour. They give a clear picture of delivery health.