The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Ontologies skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Ontologies over the 3 months to 29 March 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Ontology
England / London
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 403 436 402
Rank change year-on-year +33 -34  
Contract jobs citing Ontologies 5 3 4
As % of all contract IT jobs advertised in London 0.026% 0.013% 0.019%
As % of the Processes & Methodologies category 0.030% 0.016% 0.023%
Number of daily rates quoted 5 3 4
Median daily rate £725 £600 £600
Median daily rate % change year-on-year +20.83% -  
90% offered a daily rate of more than £520 £480 £375
10% offered a daily rate of more than £740 £920 £703
UK excluding London median daily rate £465 £600 £330
% change year-on-year -22.50% +81.81%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Ontologies is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for process and methodology skills.

Contract Process & Methodology Skills
London
Contract job vacancies with a requirement for process and methodology skills 16653 19113 17455
As % of all contract IT job vacancies advertised in London 85.13% 85.16% 82.01%
Number of daily rates quoted 11983 13825 12271
Median daily rate £485 £475 £450
Median daily rate % change year-on-year +2.10% +5.55%  
90% offered a daily rate of more than £345 £325 £310
10% offered a daily rate of more than £650 £625 £613
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 167 195 244
Median hourly rate £31.92 £22.12 £20.00
Median hourly rate % change year-on-year +44.33% +10.57%  
90% offered a hourly rate of more than £14.19 £12.50 £11.00
10% offered a hourly rate of more than £55.00 £52.50 £55.00
UK excluding London median hourly rate £35.75 £38.50 £30.00
% change year-on-year -7.14% +28.33%  

Ontologies
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing Ontologies as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for Ontologies in London

Ontologies
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Ontologies in London.

Contractor daily rate trend for Ontologies in London

Ontologies
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Ontologies in London over the 3 months to 29 March 2017.

Contractor daily rate histogram for Ontologies in London

Ontologies
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Ontologies within the London region over the 3 months to 29 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London -3 1 £725 +61.11%
Ontologies
England

For the 6 months to 29 March 2017, IT contractor jobs citing Ontologies also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for Ontologies.

1 5 (62.50%) Banking
2 3 (37.50%) Python
2 3 (37.50%) RDF
2 3 (37.50%) Finance
2 3 (37.50%) Agile Software Development
2 3 (37.50%) RESTful
2 3 (37.50%) SPARQL
3 2 (25.00%) MiFID
3 2 (25.00%) Investment Banking
3 2 (25.00%) Automated Testing
3 2 (25.00%) Software Engineering
3 2 (25.00%) Digital Media
3 2 (25.00%) Machine Learning
3 2 (25.00%) BDD
3 2 (25.00%) Triplestore
3 2 (25.00%) TDD
3 2 (25.00%) Equities
3 2 (25.00%) Content Management
3 2 (25.00%) Foreign Exchange (FX)
3 2 (25.00%) Data Modelling
3 2 (25.00%) Web Services
3 2 (25.00%) C++
3 2 (25.00%) Java
3 2 (25.00%) Conceptual Models
3 2 (25.00%) Information Retrieval
3 2 (25.00%) Line Management
3 2 (25.00%) Coaching
4 1 (12.50%) User Experience
4 1 (12.50%) Apache Spark
4 1 (12.50%) Google Cloud Platform

Ontologies
Co-occurring IT Skills in London by Category

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

Application Platforms
1 1 (12.50%) Apache
1 1 (12.50%) Apache Spark
1 1 (12.50%) CMS
1 1 (12.50%) SAS
Applications
1 1 (12.50%) SPSS
Cloud Services
1 1 (12.50%) Google Cloud Platform
Database & Business Intelligence
1 2 (25.00%) Triplestore
2 1 (12.50%) Big Data
2 1 (12.50%) Hadoop
2 1 (12.50%) Mahout
2 1 (12.50%) NoSQL
General
1 5 (62.50%) Banking
2 3 (37.50%) Finance
3 2 (25.00%) Investment Banking
4 1 (12.50%) Advertising
4 1 (12.50%) Games
4 1 (12.50%) Legal
4 1 (12.50%) Marketing
Job Titles
1 3 (37.50%) Developer
2 2 (25.00%) Architect
2 2 (25.00%) Lead Developer
3 1 (12.50%) Analyst
3 1 (12.50%) Big Data Architect
3 1 (12.50%) Content Manager
3 1 (12.50%) Data Architect
3 1 (12.50%) Data Modeller
3 1 (12.50%) Functional Architect
3 1 (12.50%) Lead Software Developer
3 1 (12.50%) Python Developer
3 1 (12.50%) Report Analyst
3 1 (12.50%) Senior Data Modeller
3 1 (12.50%) Software Developer
3 1 (12.50%) Web Content Manager
3 1 (12.50%) Web Manager
Libraries, Frameworks & Software Standards
1 3 (37.50%) RESTful
2 2 (25.00%) Web Services
3 1 (12.50%) CSS
3 1 (12.50%) HTML
3 1 (12.50%) MLlib
3 1 (12.50%) Natural Language Processing
Miscellaneous
1 2 (25.00%) Digital Media
1 2 (25.00%) Equities
1 2 (25.00%) Foreign Exchange (FX)
2 1 (12.50%) Management Information System
2 1 (12.50%) Online Banking
2 1 (12.50%) Reference Data
2 1 (12.50%) Taxonomies
2 1 (12.50%) User Experience
Processes & Methodologies
1 3 (37.50%) Agile Software Development
1 3 (37.50%) RDF
2 2 (25.00%) Automated Testing
2 2 (25.00%) BDD
2 2 (25.00%) Coaching
2 2 (25.00%) Conceptual Models
2 2 (25.00%) Content Management
2 2 (25.00%) Data Modelling
2 2 (25.00%) Information Retrieval
2 2 (25.00%) Line Management
2 2 (25.00%) Machine Learning
2 2 (25.00%) Software Engineering
2 2 (25.00%) TDD
3 1 (12.50%) Business Analysis
3 1 (12.50%) Business Development
3 1 (12.50%) Copywriting
3 1 (12.50%) Data Architecture
3 1 (12.50%) Enterprise Content Management
3 1 (12.50%) Statistics
3 1 (12.50%) Use Case
Programming Languages
1 3 (37.50%) Python
1 3 (37.50%) SPARQL
2 2 (25.00%) C++
2 2 (25.00%) Java
3 1 (12.50%) C
3 1 (12.50%) MATLAB
3 1 (12.50%) R
Quality Assurance & Compliance
1 2 (25.00%) MiFID
2 1 (12.50%) Basel III
2 1 (12.50%) CRD IV
2 1 (12.50%) IFRS
System Software
1 1 (12.50%) Docker
Systems Management
1 1 (12.50%) Kubernetes
Vendors
1 1 (12.50%) Google
1 1 (12.50%) IBM