A qualified DevOps engineer should have a good understanding of various DevOps practices. They should be well-versed in continuous integration, which involves regularly merging code changes and running automated tests. Familiarity with continuous delivery and deployment practices is also essential, as they enable the seamless release of software updates.
Additionally, candidates should be knowledgeable about infrastructure-as-code, version control, monitoring, and logging practices. Assessing their experience in implementing these practices will help you identify the right fit for your team.