Roles versus users looks like syntax trivia and is actually a secrets-management position. The follow-ups about instance profiles and IRSA separate practitioners from tutorial graduates.
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Why do mature AWS shops avoid IAM users for workloads? Where do instance profiles and IRSA fit in?
Roles versus users looks like syntax trivia and is actually a secrets-management position. The follow-ups about instance profiles and IRSA separate practitioners from tutorial graduates.
Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.
UP NEXT ON YOUR JOURNEY
Next in this trackExplain envelope encryption. Why does nobody encrypt large data by calling KMS directly?Next in this trackA critical CVE drops and 400 instances need a new AMI today. How do you roll the fleet with zero downtime?Next in this trackA vendor needs to read objects from our S3 bucket from their own AWS account. How do you set that up safely?
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