What Does a DevOps Engineer Actually Do? A Plain-English Guide

Day-to-day, a DevOps engineer works on automating software delivery pipelines, managing cloud infrastructure, monitoring live systems, and collaborating with development teams. Specific tasks might include configuring CI/CD pipelines, writing infrastructure-as-code with tools like Terraform, troubleshooting production alerts, and reviewing deployment processes.

No, a degree is not required. Many working DevOps engineers in the UK came from non-traditional backgrounds, including IT support, systems administration, or self-taught development. Employers care far more about demonstrable skills — cloud experience, scripting ability, and real projects — than formal qualifications.

DevOps engineers focus primarily on automating and improving the software delivery pipeline, while SREs focus on the reliability, availability, and performance of live production systems. In smaller UK companies, one person often covers both roles. At larger organisations, the titles and responsibilities split more clearly.

The most commonly required tools in UK job postings include Docker, Kubernetes, Terraform, Ansible, Jenkins or GitHub Actions for CI/CD, and at least one major cloud platform such as AWS, Azure, or GCP. Linux command-line skills and basic scripting in Python or Bash are also essential.

Salaries vary by experience. Entry-level DevOps engineers typically earn between £35,000 and £50,000. Mid-level engineers commonly earn £55,000–£75,000, and senior engineers — particularly in London or remote roles at scale-ups — can earn over £90,000, sometimes with additional equity or bonuses.

With focused, structured learning, many people build enough foundational skills to land a junior role within six to twelve months. A coding or DevOps bootcamp can compress that timeline significantly by giving you hands-on projects and a clear curriculum, compared to piecing together self-study materials independently.