| Data Querying | Maintain | 11,721 | $137,500 |
| BigQuery | Invest | 10,100 | $167,500 |
| Elasticsearch | Invest | 7,893 | $172,500 |
| Hive | Monitor | 4,551 | $162,500 |
| Data Retrieval | Not rated | 2,695 | $107,500 |
| ClickHouse Real-Time OLAP Engineering | Invest | 2,038 | $202,500 |
| SAP HANA | Maintain | 1,615 | $152,500 |
| OLAP | Maintain | 1,570 | $177,500 |
| Neo4j | Invest | 1,413 | $167,500 |
| Unity Catalog Governance Engineering | Invest | 1,387 | $162,500 |
| Street address databases | Maintain | 1,287 | $82,500 |
| Weaviate | Invest | 957 | $187,500 |
| Data Observability Engineering | Invest | 911 | $152,500 |
| ELK Stack | Invest | 808 | $147,500 |
| Query Writing | Maintain | 797 | $107,500 |
| Medical Databases | Maintain | 772 | $102,500 |
| Presto | Maintain | 731 | $187,500 |
| SQL Reporting | Maintain | 672 | $102,500 |
| Data Fetching | Maintain | 590 | $182,500 |
| Cloudera Impala | Migrate | 586 | $142,500 |
| Milvus | Invest | 536 | $187,500 |
| Microsoft SQL Server Analysis Services (SSAS) | Maintain | 434 | $122,500 |
| Pinecone | Invest | 396 | $192,500 |
| SPARQL | Monitor | 325 | $157,500 |
| Qdrant | Invest | 225 | $177,500 |
| Distributed SQL Database Architecture | Invest | 221 | $152,500 |
| Statistics databases | Maintain | 200 | $72,500 |
| Apache Druid Time-Series Store Design | Monitor | 195 | $222,500 |
| Data Access | Maintain | 176 | $172,500 |
| Teradata BTEQ | Migrate | 160 | $147,500 |
| Chroma | Invest | 150 | $172,500 |
| Apache Pinot Low-Latency Indexing | Monitor | 126 | $187,500 |
| Kinetica | Invest | 99 | — |
| StarRocks Lakehouse Query Acceleration | Monitor | 83 | $202,500 |
| Reference Databases | Maintain | 45 | — |
| KDB | Maintain | 38 | — |
| Biological Sequence Databases | Maintain | 31 | — |
| Distributed Query Processing | Invest | 30 | — |
| Apache Polaris Catalog Operations | Monitor | 23 | — |
| ICPSR | Maintain | 21 | — |
| Lucidworks Fusion | Monitor | 16 | — |
| Iceberg REST Catalog Implementation | Invest | 15 | $272,500 |
| Programming Structured Query Reporter | Monitor | 15 | — |
| Multidimensional Expressions (MDX) | Maintain | 12 | — |
| Parts classification databases | Not rated | 12 | — |
| Looker ML | Invest | 10 | — |
| Customer information databases | Maintain | 4 | — |
| Technical Data Management System (TDMS) | Maintain | 3 | — |
| Specialist Data Solutions OctoPlus | Migrate | 1 | — |
| Active Metadata and Lineage Engineering | Invest | — | — |
| Aster Data nCluster | Migrate | — | — |
| DuckDB Embedded Analytics Engineering | Invest | — | — |
| GPU-Accelerated Database Engineering | Monitor | — | — |
| J (Programming Language) | Monitor | — | — |
| Merlin Information Services databases | Not rated | — | — |
| Noldus Information Technology uLog Pro | Maintain | — | — |
| Oracle Darwin | Monitor | — | — |
| ParAccel Analytic Database | Obsolete | — | — |
| Product producer databases | Not rated | — | — |
| StarData | Not rated | — | — |
| Systat Software LISA.lims | Monitor | — | — |
| Traffic record databases | Maintain | — | — |