Roles · Infrastructure Engineer · Mid-level
2 core skills, 60 in total. Expectations per skill, and what changes at the next level.
This page lists what a Mid-level } is expected to know and do, skill by skill. Core skills are the ones a manager and peers assess in a review cycle; the rest count only in self-assessment. Main areas: DevOps & CI/CD, Testing & QA.
Grouped by area. The label on the right is the expected depth: Awareness, Working, Advanced or Expert.
Implements GitOps for infrastructure: configures Atlantis/Spacelift for automated Terraform apply from PRs, organizes Terraform modules in Git with versioning, manages infrastructure secrets through Vault integration. Ensures plan review workflow before apply.
Conducts infrastructure chaos experiments: tests database failover (RDS failover, Redis sentinel), network partition between AZs, disk failure scenarios. Uses AWS Fault Injection Simulator or terraform-based fault injection for cloud infrastructure.
Not assessed by the team, but part of the self-assessment and the development plan.
60 skills get a higher expectation or become core when moving from Mid-level to Senior. The biggest jumps first.
} in the open competency matrix: 60 skills across 5 levels. The matrix is free for individuals and stays free.