Ontologies Contracts

Ontology
UK

The table below provides summary statistics for contract job vacancies requiring Ontologies skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited Ontologies over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 493 557 675
Rank change year-on-year +64 +118 +140
Contract jobs citing Ontologies 27 25 43
As % of all contract jobs advertised in the UK 0.092% 0.057% 0.072%
As % of the Processes & Methodologies category 0.10% 0.066% 0.080%
Number of daily rates quoted 17 18 34
10th Percentile £342 £499 £316
25th Percentile £379 £572 £350
Median daily rate (50th Percentile) £436 £725 £597
Median % change year-on-year -39.86% +21.51% -14.77%
75th Percentile £650 £763 £763
90th Percentile £715 £777 £1,009
UK excluding London median daily rate £650 - £350
Number of hourly rates quoted 0 0 2
10th Percentile - - £36.75
25th Percentile - - £37.88
Median hourly rate - - £39.75
75th Percentile - - £41.63
90th Percentile - - £42.75
UK excluding London median hourly rate - - £39.75

All Process and Methodology Skills
UK

Ontologies falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills.

Contract vacancies with a requirement for process or methodology skills 26,594 37,597 53,655
As % of all contract IT jobs advertised in the UK 90.84% 86.31% 89.91%
Number of daily rates quoted 17,149 24,227 37,238
10th Percentile £308 £300 £325
25th Percentile £413 £413 £438
Median daily rate (50th Percentile) £520 £525 £550
Median % change year-on-year -0.95% -4.55% +4.76%
75th Percentile £630 £638 £650
90th Percentile £743 £750 £750
UK excluding London median daily rate £483 £500 £500
% change year-on-year -3.50% - +5.26%
Number of hourly rates quoted 1,071 2,443 1,746
10th Percentile £14.41 £12.75 £11.00
25th Percentile £18.21 £16.00 £16.25
Median hourly rate £29.00 £35.65 £37.30
Median % change year-on-year -18.65% -4.42% +49.20%
75th Percentile £60.38 £59.98 £65.00
90th Percentile £75.00 £72.50 £75.00
UK excluding London median hourly rate £27.50 £37.34 £36.00
% change year-on-year -26.35% +3.72% +80.00%

Ontologies
Job Vacancy Trend

Job postings citing Ontologies as a proportion of all IT jobs advertised.

Job vacancy trend for Ontologies in the UK

Ontologies
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing Ontologies.

Daily rate trend for Ontologies in the UK

Ontologies
Daily Rate Histogram

Daily rate distribution for jobs citing Ontologies over the 6 months to 1 May 2025.

Daily rate histogram for Ontologies in the UK

Ontologies
Contractor Hourly Rate Trend

3-month moving average hourly rates quoted in jobs citing Ontologies.

Hourly rate trend for Ontologies in the UK

Ontologies
Top 12 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Ontologies within the UK over the 6 months to 1 May 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
England +56 21 £550 -24.14% 43
UK excluding London +67 10 £650 - 9
Work from Home +43 10 £436 -21.62% 14
London +31 7 £725 - 35
East of England +34 5 £408 - 6
North of England +18 4 £663 - 1
Midlands - 3 £650 -
North West +14 2 £688 - 1
Yorkshire - 2 £650 -
West Midlands - 2 £650 -
East Midlands - 1 - -
South East - 1 - - 2

Ontologies
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 5 (18.52%) SAS
2 3 (11.11%) Confluence
3 1 (3.70%) Apache
Applications
1 4 (14.81%) MS Visio
2 3 (11.11%) Microsoft Excel
Business Applications
1 3 (11.11%) SAP S/4HANA
2 2 (7.41%) Sparx Enterprise Architect
Cloud Services
1 3 (11.11%) AWS
1 3 (11.11%) Collibra
1 3 (11.11%) Power Platform
2 1 (3.70%) Azure
2 1 (3.70%) GCP
2 1 (3.70%) Serverless
2 1 (3.70%) Snowflake
Database & Business Intelligence
1 12 (44.44%) Metadata
2 7 (25.93%) Data Warehouse
3 5 (18.52%) Big Data
3 5 (18.52%) Data Lake
4 4 (14.81%) NoSQL
4 4 (14.81%) RDBMS
4 4 (14.81%) Relational Database
4 4 (14.81%) Tableau
5 3 (11.11%) Data Mining
5 3 (11.11%) Power BI
5 3 (11.11%) QlikView
6 2 (7.41%) Electronic Patient Records
6 2 (7.41%) Hadoop
6 2 (7.41%) Text Mining
7 1 (3.70%) Apache Hive
7 1 (3.70%) DataStage
7 1 (3.70%) DynamoDB
7 1 (3.70%) Metadata Repository
7 1 (3.70%) MongoDB
7 1 (3.70%) PostgreSQL
Development Applications
1 6 (22.22%) ERwin
2 4 (14.81%) ER Studio
3 3 (11.11%) JIRA
General
1 11 (40.74%) Pharmaceutical
2 5 (18.52%) Banking
3 4 (14.81%) Finance
3 4 (14.81%) Influencing Skills
4 3 (11.11%) Presentation Skills
5 2 (7.41%) Public Sector
6 1 (3.70%) Electronics
6 1 (3.70%) Law
6 1 (3.70%) Manufacturing
6 1 (3.70%) Marketing
6 1 (3.70%) Social Skills
6 1 (3.70%) Telecoms
Job Titles
1 7 (25.93%) Data Modeller
2 3 (11.11%) Analyst
2 3 (11.11%) Architect
2 3 (11.11%) Banking Analyst
2 3 (11.11%) Data Analyst
2 3 (11.11%) Data Architect
2 3 (11.11%) Lead
3 2 (7.41%) Data Engineer
3 2 (7.41%) Data Quality Analyst
3 2 (7.41%) Governance Analyst
3 2 (7.41%) Information Scientist
3 2 (7.41%) Senior
4 1 (3.70%) Associate Director
4 1 (3.70%) Consultant
4 1 (3.70%) Data Migration Lead
4 1 (3.70%) Developer
4 1 (3.70%) Management Consultant
4 1 (3.70%) Principal Architect
4 1 (3.70%) Principal Data Architect
4 1 (3.70%) SAS Data Analyst
Libraries, Frameworks & Software Standards
1 2 (7.41%) FIX Protocol
1 2 (7.41%) FpML
1 2 (7.41%) JSON
1 2 (7.41%) XML
Miscellaneous
1 8 (29.63%) Taxonomies
2 6 (22.22%) Reference Data
3 5 (18.52%) Data Fabric
4 3 (11.11%) Data Protection Act
4 3 (11.11%) Data Structures
4 3 (11.11%) Life Science
5 2 (7.41%) Legacy Systems
5 2 (7.41%) Omics
6 1 (3.70%) NHS
Processes & Methodologies
1 18 (66.67%) Data Modelling
2 12 (44.44%) Data Governance
3 10 (37.04%) Data Management
4 8 (29.63%) Analytics
4 8 (29.63%) Metadata Management
5 7 (25.93%) Agile
5 7 (25.93%) Business Intelligence
5 7 (25.93%) Conceptual Models
5 7 (25.93%) Data Architecture
5 7 (25.93%) Data Strategy
5 7 (25.93%) Logical Data Model
6 6 (22.22%) Data Visualisation
6 6 (22.22%) ETL
6 6 (22.22%) Visualisation
7 5 (18.52%) Data Migration
7 5 (18.52%) Domain-Driven Design
7 5 (18.52%) Migration
7 5 (18.52%) Physical Data Model
7 5 (18.52%) Stakeholder Management
7 5 (18.52%) Use Case
Programming Languages
1 12 (44.44%) Python
2 8 (29.63%) SQL
3 2 (7.41%) MATLAB
4 1 (3.70%) Java
Qualifications
1 3 (11.11%) Degree
1 3 (11.11%) Security Cleared
2 2 (7.41%) PhD
2 2 (7.41%) SC Cleared
3 1 (3.70%) DV Cleared
Quality Assurance & Compliance
1 12 (44.44%) Data Quality
2 3 (11.11%) California Consumer Privacy Act
2 3 (11.11%) GDPR
Vendors
1 6 (22.22%) SAP
2 4 (14.81%) IBM
3 3 (11.11%) Ab Initio
3 3 (11.11%) Informatica
3 3 (11.11%) Sparx
4 2 (7.41%) Foundry
4 2 (7.41%) Palantir
5 1 (3.70%) Ariba
5 1 (3.70%) Google
5 1 (3.70%) Microsoft
5 1 (3.70%) Talend