Microsoft Certified: DevOps Engineer Expert (AZ-400)
Validates knowledge of designing DevOps solutions, including source control, build and release pipelines, security and compliance, and instrumentation.
Summary
DevOps Engineer Expert is Microsoft's certification for building and running delivery pipelines with GitHub and Azure DevOps, tested by the AZ-400 exam. It covers work tracking, source control, build and release pipelines, security in automation and monitoring, with pipelines about half the exam.
Good fit if
You build and maintain CI/CD pipelines in GitHub Actions or Azure Pipelines
You hold AZ-104 or an Azure Developer Associate certification
Postings you target list AZ-400 or DevOps Engineer Expert
Earn Azure Administrator Associate, or hold Azure Developer Associate, to become a DevOps Engineer Expert. You can take AZ-400 before or after it.
Azure Administrator Associate
Pass AZ-104
Azure Developer Associate
Already earned; its AZ-204 exam retired on July 31, 2026
Azure administration and development experience
Recommended
Microsoft expects experience with both, strong skills in at least one, and experience implementing GitHub and Azure DevOps solutions.
Microsoft awards the Expert certification once you have passed AZ-400 and hold one of the listed Associate certifications, in either order.
Cost
USD · US pricing
$165
$165
What holders say
Best for people already doing the job
People using Azure DevOps or GitHub daily say AZ-400 mostly formalized skills they had, and helped with an internal move. Without hands-on DevOps experience it was much harder.
Mixed views on how well it reflects real DevOps work
Some candidates say the exam leans on older tooling and niche scanning tools. Others say its pipeline and infrastructure-as-code content matches the work closely.
The assessment opens six months before expiry on Microsoft Learn, and you can retake it as often as you need before then. Your Associate certification renews separately, and the Expert certification does not expire with it.
No. You can take AZ-400 first. Microsoft awards DevOps Engineer Expert once you have passed AZ-400 and hold Azure Administrator Associate or Azure Developer Associate.
Does Azure Developer Associate still count now that AZ-204 has retired?
Microsoft still lists Azure Developer Associate as a qualifying certification. New candidates can no longer take AZ-204, so they qualify with AZ-104.
How much does the AZ-400 exam cost?
$165 in the US. If you need AZ-104 as well, that is another $165.
Does AZ-400 include a lab?
It can. Microsoft does not say in advance which exams include labs. The overview screens at the start of your exam tell you.