| skill-area:replication-strategy | Replication Strategy | domain |
| skill-area:reproducibility-testing | Reproducibility Testing | domain |
| skill-area:requirements-engineering | Requirements Engineering | domain |
| skill-area:REST-maturity-levels | REST API Maturity | domain |
| skill-area:retention-modeling | Retention Modeling | domain |
| skill-area:retrieval-augmented-generation | Retrieval-Augmented Generation | domain |
| skill-area:retrieval-evaluation | Retrieval Evaluation | domain |
| skill-area:revenue-attribution | Revenue Attribution | domain |
| skill-area:revenue-operations | Revenue Operations | domain |
| skill-area:risk-assessment | Risk Assessment | domain |
| skill-area:roadmap-management | Roadmap Management | domain |
| skill-area:roadmap-planning | Roadmap Planning | domain |
| skill-area:robot-kinematics | Robot Kinematics | domain |
| skill-area:ros-development | ROS / ROS 2 Development | domain |
| skill-area:rtos-programming | RTOS Programming | domain |
| skill-area:runbook-authoring | Runbook Authoring | domain |
| skill-area:runbook-automation | Runbook Automation | domain |
| skill-area:runbook-writing | Runbook Writing | domain |
| skill-area:runtime-security | Runtime Security | domain |
| skill-area:rust-async-runtime | Rust Async Runtime | domain |
| skill-area:safety-redteaming | Safety Red-Teaming | domain |
| skill-area:sales-methodology | Sales Methodology | domain |
| skill-area:sales-operations | Sales Operations | domain |
| skill-area:sanity-testing | Sanity Testing | domain |
| skill-area:sast | Static Application Security Testing (SAST) | domain |
| skill-area:save-load-systems | Save and Load Systems | domain |
| skill-area:SBOM-management | SBOM Management | domain |
| skill-area:scalability-testing | Scalability Testing | domain |
| skill-area:scene-graphs | Scene Graphs & ECS | domain |
| skill-area:schema-evolution | Schema Evolution | domain |
| skill-area:sdk-codegen | SDK Code Generation | domain |
| skill-area:SDK-design | SDK Design | domain |
| skill-area:search-indexing | Search and Indexing | domain |
| skill-area:search-infrastructure | Search Infrastructure | domain |
| skill-area:secret-scanning | Secret Scanning | domain |
| skill-area:secrets-rotation | Secrets Rotation | domain |
| skill-area:security-monitoring-siem | Security Monitoring and SIEM | domain |
| skill-area:security-testing | Security Testing | domain |
| skill-area:self-service-infrastructure | Self-Service Infrastructure | domain |
| skill-area:semantic-versioning | Semantic Versioning | domain |
| skill-area:semver-discipline | Semantic Versioning Discipline | domain |
| skill-area:sensor-libraries | Sensor Libraries | domain |
| skill-area:seo-sem | SEO and SEM | domain |
| skill-area:serialization-deserialization | Serialization and Deserialization | domain |
| skill-area:server-components | Server Components | domain |
| skill-area:server-side-rendering | Server-Side Rendering | domain |
| skill-area:serverless-cold-start-optimization | Serverless Cold-Start Optimization | domain |
| skill-area:serverless-compute | Serverless Compute | domain |
| skill-area:service-catalog-management | Service Catalog Management | domain |
| skill-area:service-mocking | Service Mocking | domain |