Understands GitOps concept: Git as single source of truth for infrastructure and deployment, pull-based deployment model. Knows basic tools: ArgoCD, Flux. Understands the difference from push-based CI/CD (Jenkins, GitLab CI).
Roles · DevOps Engineer · Junior
What a Junior } should know
1 core skills, 63 in total. Expectations per skill, and what changes at the next level.
This page lists what a Junior } 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.
1core skills
62additional skills
1skill areas
0%at Advanced or Expert
Core skills for a Junior
Grouped by area. The label on the right is the expected depth: Awareness, Working, Advanced or Expert.
DevOps & CI/CD · 1
GitOps Practices
Awareness
Additional skills
Not assessed by the team, but part of the self-assessment and the development plan.
Algorithms & ComplexityAnsibleApache KafkaAPI DocumentationArgoCDAsync ProgrammingAWSBlue/Green DeploymentCanary DeploymentCDN & Edge ComputingChaos EngineeringChatGPT / ClaudeCode Quality & RefactoringCode ReviewContainer Security ScanningCursor IDECustom Business MetricsData StructuresDatabase IndexingDesign PatternsDisaster Recovery DesignDockerDocumentation as CodeE2E TestingELK StackFeature FlagsGit AdvancedGitHub Actions / GitLab CIGitHub CopilotGitLab CI/CD AdvancedGraphQL DesignHelmIntegration TestingJenkinsJWT / OAuth2 / OIDCKubernetes AdvancedKubernetes CoreLoad BalancingMemory ManagementMultithreadingNetwork FundamentalsOn-Call ManagementOOP & SOLID PrinciplesOpenTelemetryOWASP & Application SecurityPostgreSQLPrometheus & GrafanaPrompt Engineering for CodePython Web FrameworksQuery OptimizationRedisREST API DesignSecrets ManagementSecure Coding PracticesSLI / SLO / SLAStructured LoggingSystem Design FundamentalsTerraformType Safety & Type SystemsUnit TestingVPN & Network IsolationWebSocket API Design
What changes at Mid-level
63 skills get a higher expectation or become core when moving from Junior to Mid-level. The biggest jumps first.
- Chaos Engineering: Awareness → Working · becomes core
- GitOps Practices: Awareness → Working
- Algorithms & Complexity: Awareness → Working
- Ansible: Awareness → Working
- Apache Kafka: Awareness → Working
- API Documentation: Awareness → Working
- ArgoCD: Awareness → Working
- Async Programming: Awareness → Working
- AWS: Awareness → Working
- Blue/Green Deployment: Awareness → Working
Run this with your whole team
Self-assessment plus manager and peer reviews against the same matrix, gap analysis and next-level readiness for every engineer. Team Pro is free for 14 days; individual tools stay free forever.
} in the open competency matrix: 63 skills across 5 levels. The matrix is free for individuals and stays free.