Azure Developer vs Azure DevOps Engineer

Which should you take first? The 2026 answer

Historically, "AZ-204 or AZ-400 first?" had a clean answer: AZ-400 required an associate certification first, and developers naturally took AZ-204 as their prerequisite while ops-leaning candidates took AZ-104. The retirement collapses that choice.

If you do not yet hold AZ-204, your practical route to DevOps Engineer Expert is now AZ-104 → AZ-400. The Azure Administrator Associate certification remains active and satisfies the prerequisite. That means a developer aiming at the DevOps credential must now pass an administration-flavoured exam — identities, storage, compute, networking, monitoring — before AZ-400. It is a detour, but not a wasted one: pipeline work constantly touches the resources, permissions and networking that AZ-104 covers, and DevOps engineers who cannot reason about the infrastructure they deploy to tend to struggle in the role anyway. The AZ-104 exam guide covers what that exam involves.

If you already hold a valid AZ-204, it still counts as an AZ-400 prerequisite while your certification is valid. One nuance to plan around: Microsoft's role-based certifications expire after one year, and with AZ-204's renewal assessment retired, an existing holder cannot renew it. Microsoft had not published transition guidance we could verify at the time of writing, so if you are in this position and eyeing AZ-400, the safe move is to sit AZ-400 while your AZ-204 is unambiguously current rather than gambling on how an expired prerequisite is treated — and to confirm the current rules on the official DevOps Engineer Expert page before booking.

A realistic sequencing scenario

Consider a .NET developer with three years of experience who deploys to Azure App Service through pipelines a platform team built, and who wants to move into a DevOps role. In 2025 the obvious plan was AZ-204 then AZ-400. In late 2026 the sensible plan looks like this:

1. Skip fundamentals unless entirely new to Azure (AZ-900 is optional and has no bearing on prerequisites).
2. Prepare for and pass AZ-104, leaning on existing deployment experience and shoring up the identity, governance and networking domains that developers rarely touch.
3. Spend deliberate time owning pipeline work — branching strategy, build/release definitions, secrets handling, monitoring dashboards — because AZ-400 assumes practitioner judgement, not just study.
4. Sit AZ-400 and earn DevOps Engineer Expert.
5. Renew annually through Microsoft's free, unproctored online renewal assessment, which opens in the six months before expiry and can be retaken without limit.

For the full booking mechanics, domains and prerequisites in one place, see the AZ-400 certification guide; whether the credential pays off against experience-based DevOps hiring is its own question, answered in Is the Azure DevOps certification worth it?

What about salary differences?

Search demand for "Azure developer vs DevOps salary" is real, but honest data is thin, and we could not verify specific salary figures against a primary source during research for this article. Training-industry salary surveys have generally placed Microsoft's expert-level certifications among the better-paying credentials, which fits the structural logic: AZ-400 sits a tier above associate level and gates on prior certification plus real-world breadth. But pay varies enormously by country, industry, seniority and the actual job attached to the title — a senior Azure developer can out-earn a junior DevOps engineer without contradiction. Treat any single "developer vs DevOps" salary number you find online with suspicion, and weigh job advertisements in your own market instead.

Preparing for whichever exam you land on

Because Microsoft does not publish question counts and uses interactive question styles, timed practice matters more than raw reading. Once you have covered the AZ-400 domains, working through AZ-400 practice questions under exam-like timing will show you which domains — pipelines, compliance, instrumentation — need another pass; ExamPractice offers free samples, with fuller sets and a timed simulation mode for subscribers. Analyse the results by domain rather than memorising answers: the exam rewards understanding of why a pipeline or governance choice is right, not recall. The wider Microsoft exams hub covers AZ-104 and the rest of the track.

Choosing your lane in a shifting landscape

The blunt summary: you can no longer become an Azure Developer Associate, so the real decision in 2026 is not "developer or DevOps engineer certification" but "how do I evidence developer skills now, and is AZ-400 my next credential?" If your ambition is application development on Azure, watch Microsoft Learn for the AI-focused successor credentials and build a portfolio in the meantime rather than chasing a retired badge. If your ambition is owning delivery systems, the path is clear and fully open: AZ-104, real pipeline experience, then AZ-400 — a sequence the retirement of AZ-204 has made longer for developers, but no less achievable.