| skill-area:data-preprocessing | Data Preprocessing | domain |
| skill-area:data-protection-dlp | Data Protection and DLP | domain |
| skill-area:data-quality | Data Quality | domain |
| skill-area:data-quality-testing | Data Quality Testing | domain |
| skill-area:data-science-experimentation | Data Science Experimentation | domain |
| skill-area:data-validation-sanitization | Data Validation and Sanitization | domain |
| skill-area:data-visualization | Data Visualization | domain |
| skill-area:data-warehouse-modeling | Data Warehouse Modeling | domain |
| skill-area:database-drivers-connectors | Database Drivers and Connectors | domain |
| skill-area:database-migration | Database Migration | domain |
| skill-area:database-migrations-zero-downtime | Zero-Downtime Database Migrations | domain |
| skill-area:database-testing | Database Testing | domain |
| skill-area:date-time-manipulation | Date and Time Manipulation | domain |
| skill-area:dbt-modeling | dbt Modeling | domain |
| skill-area:dead-code-elimination | Dead Code Elimination | domain |
| skill-area:deep-learning-libraries | Deep Learning Libraries and Services | domain |
| skill-area:deep-linking | Mobile Deep Linking | domain |
| skill-area:deep-web-research | Deep Web Research | domain |
| skill-area:DEI-analytics | DEI Analytics | domain |
| skill-area:demand-forecasting | Demand Forecasting | domain |
| skill-area:dependency-management | Dependency Management | domain |
| skill-area:dependency-upgrade-strategies | Dependency Upgrade Strategies | domain |
| skill-area:dependency-vulnerability-mgmt | Dependency Vulnerability Management | domain |
| skill-area:deployment | Deployment | domain |
| skill-area:deployment-automation | Deployment Automation | domain |
| skill-area:deployment-infrastructure-management | Deployment and Infrastructure Management | domain |
| skill-area:deployment-ring-strategy | Deployment Ring Strategy | domain |
| skill-area:deprecation-policy | Deprecation Policy | domain |
| skill-area:design-critique | Design Critique | domain |
| skill-area:design-document-writing | Design Document Writing | domain |
| skill-area:design-systems | Design Systems | domain |
| skill-area:desktop-automation | Desktop Automation | domain |
| skill-area:desktop-system-integration | Desktop System Integration | domain |
| skill-area:desktop-ui-frameworks | Desktop UI Frameworks | domain |
| skill-area:developer-documentation | Developer Documentation | domain |
| skill-area:developer-environment | Developer Environment | domain |
| skill-area:developer-experience | Developer Experience | domain |
| skill-area:developer-onboarding | Developer Onboarding | domain |
| skill-area:developer-portal-design | Developer Portal Design | domain |
| skill-area:developer-productivity-measurement | Developer Productivity Measurement | domain |
| skill-area:device-driver-development | Device Driver Development | domain |
| skill-area:device-drivers | Device Drivers | domain |
| skill-area:DICOM-imaging | DICOM Imaging | domain |
| skill-area:digital-advertising | Digital Advertising | domain |
| skill-area:digital-marketing-analytics | Digital Marketing Analytics | domain |
| skill-area:digital-twin-modeling | Digital Twin Modeling | domain |
| skill-area:distributed-caching | Distributed Caching | domain |
| skill-area:distributed-locking | Distributed Locking | domain |
| skill-area:distributed-storage-design | Distributed Storage Design | domain |
| skill-area:distributed-tracing | Distributed Tracing | domain |