DevOps Fundamentals Interview Questions
11 questions
Core DevOps concepts and culture questions — the ones that show up early in an interview to check whether a candidate actually understands why the practices exist, not just their names.
Can a small startup meaningfully practice SRE, or does the error-budget/SLO machinery only make sense past a certain scale?
BeginnerSRE6 min
A job posting says the team practices 'continuous deployment,' but during the interview it turns out every release still requires a manual approval click. Is that actually continuous deployment?
BeginnerDevops5 min
Your company's microservices architecture has oddly chatty, tightly-coupled services that mirror exactly how your engineering org is divided into teams. Is that a coincidence?
IntermediateDevops6 min
A team's definition of 'done' for infrastructure changes is just 'terraform apply succeeded.' What's actually missing from that definition, and why does it matter?
IntermediateDevops6 min
Terraform and Ansible can both technically install packages on a server. What's the actual conceptual difference between infrastructure-as-code and configuration management?
BeginnerDevops6 min
A team is proud that their service hasn't had a major incident in 8 months, but when something does break, it takes hours to recover. Which reliability metric should they actually be optimizing for?
IntermediateDevops6 min
Leadership wants to 'shift left' on security, testing, and cost — but the phrase is used so broadly it's started to feel meaningless. What does shift-left actually mean, concretely?
BeginnerDevops6 min
What's actually the difference between DevOps, SRE, and Platform Engineering — as practices, not just job titles — and how would you explain it to someone outside the team?
BeginnerDevops6 min
What's the actual difference between idempotency and "safe to re-run" — can a task be safely re-run without actually being idempotent?
IntermediateDevops6 min
How would you tell whether a company's "Platform Engineering" team is genuinely building self-service tooling, versus just being the old ops team under a new name?
IntermediatePlatform Engineering6 min
Joining a company with none of DevOps, SRE, or Platform Engineering formalized, which would you introduce first, and why?
IntermediateDevops7 min