Understands CI/CD concepts for database work: build, test, deploy for database migrations and schema changes. Uses existing workflows for migration validation. Can add a step to an existing pipeline for database checks. Reads failed build logs for migration issues.
Roles · Database Engineer / DBA · Junior
What a Junior } should know
1 core skills, 56 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
55additional 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
GitHub Actions / GitLab CI
Working
Additional skills
Not assessed by the team, but part of the self-assessment and the development plan.
Algorithms & ComplexityApache CassandraArchitecture Documentation: C4, arc42Async ProgrammingAWSBackup & Disaster RecoveryBenchmarking Tools & MethodologyCapacity PlanningChatGPT / ClaudeClickHouseCockroachDBCode Quality & RefactoringCode ReviewCPU ProfilingCustom Business MetricsData Modeling & Schema DesignData StructuresDatabase IndexingDatabase MigrationsDatabase Performance TuningDesign PatternsDisaster Recovery DesignDockerDynamoDBELK StackGit AdvancedGitHub CopilotI/O & Disk ProfilingIntegration TestingKubernetes CoreMongoDBMultithreadingMySQL / MariaDBNeo4jNetwork FundamentalsOn-Call ManagementOOP & SOLID PrinciplesOWASP & Application SecurityPostgreSQLPrometheus & GrafanaPrompt Engineering for CodeQuery OptimizationRedisReplication & High AvailabilityREST API DesignRunbook & Playbook WritingSecrets ManagementSecure Coding PracticesSLI / SLO / SLAStructured LoggingSystem Design FundamentalsTerraformTransactions & ConcurrencyUnit TestingVitess
What changes at Mid-level
56 skills get a higher expectation or become core when moving from Junior to Mid-level. The biggest jumps first.
- GitHub Actions / GitLab CI: Working → Advanced
- Algorithms & Complexity: Awareness → Working
- Apache Cassandra: Awareness → Working
- Architecture Documentation: C4, arc42: Awareness → Working
- Async Programming: Awareness → Working
- AWS: Awareness → Working
- Backup & Disaster Recovery: Awareness → Working
- Benchmarking Tools & Methodology: Awareness → Working
- Capacity Planning: Awareness → Working
- ChatGPT / Claude: 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: 56 skills across 5 levels. The matrix is free for individuals and stays free.