{
  "name": "Datamata Skill Demand Index",
  "version": "1.0",
  "description": "Daily share of active tech job listings mentioning each skill, across data, engineering, product, DevOps, security and AI. One row per category and skill from the most recent snapshot, including how often each skill is a hard requirement.",
  "source": "https://www.datamatastudios.com/datasets",
  "license": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "generated_at": "2026-07-12T15:31:13.448007+00:00",
  "latest_snapshot_date": "2026-07-12",
  "categories": [
    "ai",
    "data",
    "devops",
    "engineering",
    "product",
    "security"
  ],
  "columns": [
    {
      "name": "snapshot_date",
      "type": "string",
      "description": "UTC date the snapshot was computed (YYYY-MM-DD)."
    },
    {
      "name": "category",
      "type": "string",
      "description": "Role category: data, engineering, product, devops, security or ai."
    },
    {
      "name": "skill",
      "type": "string",
      "description": "Normalised skill name."
    },
    {
      "name": "skill_group",
      "type": "string",
      "description": "Skill family the skill belongs to (e.g. language, cloud, framework)."
    },
    {
      "name": "listing_count",
      "type": "number",
      "description": "Active listings in the category that mention the skill."
    },
    {
      "name": "total_listings",
      "type": "number",
      "description": "Total active listings in the category on that date."
    },
    {
      "name": "demand_pct",
      "type": "number",
      "description": "listing_count / total_listings x 100, rounded to 0.1."
    },
    {
      "name": "required_count",
      "type": "number",
      "description": "Listings where the skill is a hard requirement (vs nice-to-have). Blank for rows snapshotted before this was tracked."
    }
  ],
  "row_count": 669,
  "rows": [
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "SQL",
      "skill_group": "Language",
      "listing_count": 663,
      "total_listings": 5685,
      "demand_pct": 11.7,
      "required_count": 653
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Python",
      "skill_group": "Language",
      "listing_count": 543,
      "total_listings": 5685,
      "demand_pct": 9.6,
      "required_count": 526
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Machine Learning",
      "skill_group": "Skill",
      "listing_count": 412,
      "total_listings": 5685,
      "demand_pct": 7.2,
      "required_count": 407
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Stakeholder Mgmt",
      "skill_group": "Soft Skill",
      "listing_count": 339,
      "total_listings": 5685,
      "demand_pct": 6.0,
      "required_count": 335
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "AWS",
      "skill_group": "Cloud",
      "listing_count": 231,
      "total_listings": 5685,
      "demand_pct": 4.1,
      "required_count": 218
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "ETL",
      "skill_group": "Skill",
      "listing_count": 223,
      "total_listings": 5685,
      "demand_pct": 3.9,
      "required_count": 217
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Statistical Analysis",
      "skill_group": "Skill",
      "listing_count": 213,
      "total_listings": 5685,
      "demand_pct": 3.7,
      "required_count": 205
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Data Modeling",
      "skill_group": "Skill",
      "listing_count": 198,
      "total_listings": 5685,
      "demand_pct": 3.5,
      "required_count": 190
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Azure",
      "skill_group": "Cloud",
      "listing_count": 186,
      "total_listings": 5685,
      "demand_pct": 3.3,
      "required_count": 181
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Power BI",
      "skill_group": "BI",
      "listing_count": 180,
      "total_listings": 5685,
      "demand_pct": 3.2,
      "required_count": 177
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Snowflake",
      "skill_group": "Warehouse",
      "listing_count": 179,
      "total_listings": 5685,
      "demand_pct": 3.1,
      "required_count": 169
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Spark",
      "skill_group": "Processing",
      "listing_count": 178,
      "total_listings": 5685,
      "demand_pct": 3.1,
      "required_count": 167
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Databricks",
      "skill_group": "Platform",
      "listing_count": 171,
      "total_listings": 5685,
      "demand_pct": 3.0,
      "required_count": 162
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "LLMs / GenAI",
      "skill_group": "Skill",
      "listing_count": 152,
      "total_listings": 5685,
      "demand_pct": 2.7,
      "required_count": 149
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "A/B Testing",
      "skill_group": "Skill",
      "listing_count": 150,
      "total_listings": 5685,
      "demand_pct": 2.6,
      "required_count": 140
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Tableau",
      "skill_group": "BI",
      "listing_count": 108,
      "total_listings": 5685,
      "demand_pct": 1.9,
      "required_count": 102
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Agile / Scrum",
      "skill_group": "Methodology",
      "listing_count": 102,
      "total_listings": 5685,
      "demand_pct": 1.8,
      "required_count": 98
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Excel",
      "skill_group": "Tool",
      "listing_count": 103,
      "total_listings": 5685,
      "demand_pct": 1.8,
      "required_count": 100
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "dbt",
      "skill_group": "Transform",
      "listing_count": 99,
      "total_listings": 5685,
      "demand_pct": 1.7,
      "required_count": 81
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Airflow",
      "skill_group": "Orchestrator",
      "listing_count": 91,
      "total_listings": 5685,
      "demand_pct": 1.6,
      "required_count": 75
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "GCP",
      "skill_group": "Cloud",
      "listing_count": 85,
      "total_listings": 5685,
      "demand_pct": 1.5,
      "required_count": 81
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Java",
      "skill_group": "Language",
      "listing_count": 74,
      "total_listings": 5685,
      "demand_pct": 1.3,
      "required_count": 74
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Git",
      "skill_group": "Tool",
      "listing_count": 60,
      "total_listings": 5685,
      "demand_pct": 1.1,
      "required_count": 56
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Data Visualization",
      "skill_group": "Skill",
      "listing_count": 56,
      "total_listings": 5685,
      "demand_pct": 1.0,
      "required_count": 53
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "BigQuery",
      "skill_group": "Warehouse",
      "listing_count": 51,
      "total_listings": 5685,
      "demand_pct": 0.9,
      "required_count": 44
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Looker",
      "skill_group": "BI",
      "listing_count": 52,
      "total_listings": 5685,
      "demand_pct": 0.9,
      "required_count": 46
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Data Pipeline",
      "skill_group": "Skill",
      "listing_count": 52,
      "total_listings": 5685,
      "demand_pct": 0.9,
      "required_count": 47
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Kafka",
      "skill_group": "Streaming",
      "listing_count": 52,
      "total_listings": 5685,
      "demand_pct": 0.9,
      "required_count": 43
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "NLP",
      "skill_group": "Skill",
      "listing_count": 52,
      "total_listings": 5685,
      "demand_pct": 0.9,
      "required_count": 50
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "CI/CD",
      "skill_group": "Pipeline",
      "listing_count": 54,
      "total_listings": 5685,
      "demand_pct": 0.9,
      "required_count": 51
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Scala",
      "skill_group": "Language",
      "listing_count": 40,
      "total_listings": 5685,
      "demand_pct": 0.7,
      "required_count": 36
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Pandas",
      "skill_group": "Library",
      "listing_count": 39,
      "total_listings": 5685,
      "demand_pct": 0.7,
      "required_count": 38
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Redshift",
      "skill_group": "Warehouse",
      "listing_count": 39,
      "total_listings": 5685,
      "demand_pct": 0.7,
      "required_count": 39
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Terraform",
      "skill_group": "IaC",
      "listing_count": 37,
      "total_listings": 5685,
      "demand_pct": 0.7,
      "required_count": 30
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "AI Agents",
      "skill_group": "Technique",
      "listing_count": 34,
      "total_listings": 5685,
      "demand_pct": 0.6,
      "required_count": 34
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Kubernetes",
      "skill_group": "Orchestration",
      "listing_count": 32,
      "total_listings": 5685,
      "demand_pct": 0.6,
      "required_count": 23
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "scikit-learn",
      "skill_group": "Library",
      "listing_count": 28,
      "total_listings": 5685,
      "demand_pct": 0.5,
      "required_count": 26
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "RAG",
      "skill_group": "Technique",
      "listing_count": 24,
      "total_listings": 5685,
      "demand_pct": 0.4,
      "required_count": 22
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "PostgreSQL",
      "skill_group": "Database",
      "listing_count": 25,
      "total_listings": 5685,
      "demand_pct": 0.4,
      "required_count": 25
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "NumPy",
      "skill_group": "Library",
      "listing_count": 20,
      "total_listings": 5685,
      "demand_pct": 0.4,
      "required_count": 20
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Prototyping",
      "skill_group": "Skill",
      "listing_count": 25,
      "total_listings": 5685,
      "demand_pct": 0.4,
      "required_count": 24
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "PyTorch",
      "skill_group": "Framework",
      "listing_count": 25,
      "total_listings": 5685,
      "demand_pct": 0.4,
      "required_count": 23
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Docker",
      "skill_group": "DevOps",
      "listing_count": 24,
      "total_listings": 5685,
      "demand_pct": 0.4,
      "required_count": 18
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Flink",
      "skill_group": "Streaming",
      "listing_count": 20,
      "total_listings": 5685,
      "demand_pct": 0.4,
      "required_count": 15
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Deep Learning",
      "skill_group": "Skill",
      "listing_count": 18,
      "total_listings": 5685,
      "demand_pct": 0.3,
      "required_count": 18
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Jira",
      "skill_group": "Tool",
      "listing_count": 16,
      "total_listings": 5685,
      "demand_pct": 0.3,
      "required_count": 15
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "MLflow",
      "skill_group": "MLOps",
      "listing_count": 15,
      "total_listings": 5685,
      "demand_pct": 0.3,
      "required_count": 14
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "TensorFlow",
      "skill_group": "Framework",
      "listing_count": 17,
      "total_listings": 5685,
      "demand_pct": 0.3,
      "required_count": 17
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Segment",
      "skill_group": "Analytics",
      "listing_count": 14,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 13
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Salesforce",
      "skill_group": "Platform",
      "listing_count": 12,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 9
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "DynamoDB",
      "skill_group": "Database",
      "listing_count": 9,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 9
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Elasticsearch",
      "skill_group": "Database",
      "listing_count": 14,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 11
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "System Design",
      "skill_group": "Skill",
      "listing_count": 9,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 9
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "TypeScript",
      "skill_group": "Language",
      "listing_count": 9,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 8
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Fivetran",
      "skill_group": "Tool",
      "listing_count": 11,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 10
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Apache Iceberg",
      "skill_group": "Table Format",
      "listing_count": 13,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 11
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "AI Coding Tools",
      "skill_group": "Tool",
      "listing_count": 12,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 11
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "AWS Security",
      "skill_group": "Cloud",
      "listing_count": 14,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 11
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Trino",
      "skill_group": "Query Engine",
      "listing_count": 10,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 9
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "C#",
      "skill_group": "Language",
      "listing_count": 9,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 8
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "JavaScript",
      "skill_group": "Language",
      "listing_count": 12,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 11
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "C++",
      "skill_group": "Language",
      "listing_count": 9,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 9
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Linux",
      "skill_group": "OS",
      "listing_count": 14,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 10
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "MySQL",
      "skill_group": "Database",
      "listing_count": 13,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 13
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "MongoDB",
      "skill_group": "Database",
      "listing_count": 9,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 9
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Dagster",
      "skill_group": "Orchestrator",
      "listing_count": 13,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 12
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "SageMaker",
      "skill_group": "MLOps",
      "listing_count": 11,
      "total_listings": 5685,
      "demand_pct": 0.2,
      "required_count": 8
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Rust",
      "skill_group": "Language",
      "listing_count": 5,
      "total_listings": 5685,
      "demand_pct": 0.1,
      "required_count": 5
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Airbyte",
      "skill_group": "Tool",
      "listing_count": 3,
      "total_listings": 5685,
      "demand_pct": 0.1,
      "required_count": 2
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Amplitude",
      "skill_group": "Analytics",
      "listing_count": 8,
      "total_listings": 5685,
      "demand_pct": 0.1,
      "required_count": 7
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "ClickHouse",
      "skill_group": "Database",
      "listing_count": 7,
      "total_listings": 5685,
      "demand_pct": 0.1,
      "required_count": 7
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Data Observability",
      "skill_group": "Skill",
      "listing_count": 5,
      "total_listings": 5685,
      "demand_pct": 0.1,
      "required_count": 3
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
      "skill": "Datadog",
      "skill_group": "Monitoring",
      "listing_count": 6,
      "total_listings": 5685,
      "demand_pct": 0.1,
      "required_count": 6
    },
    {
      "snapshot_date": "2026-07-12",
      "category": "data",
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      "skill_group": "Design",
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