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 28 May 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
28 May 2017
Same period 2016 Same period 2015
Rank 387 432 419
Rank change year-on-year +45 -13  
Contract jobs citing Ontologies 11 1 1
As % of all contract IT jobs advertised in London 0.055% 0.005% 0.004%
As % of the Processes & Methodologies category 0.064% 0.005% 0.005%
Number of daily rates quoted 11 0 1
Median daily rate £650 - £500
UK excluding London median daily rate £500 - £500
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 17097 18837 18625
As % of all contract IT job vacancies advertised in London 86.17% 85.32% 82.20%
Number of daily rates quoted 12222 13794 13091
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £350 £325 £310
10% offered a daily rate of more than £645 £625 £625
UK excluding London median daily rate £413 £400 £388
% change year-on-year +3.12% +3.22%  
Number of hourly rates quoted 197 164 274
Median hourly rate £25.00 £21.00 £19.00
Median hourly rate % change year-on-year +19.04% +10.52%  
90% offered a hourly rate of more than £14.20 £12.50 £11.00
10% offered a hourly rate of more than £50.00 £45.00 £55.00
UK excluding London median hourly rate £35.00 £32.50 £30.00
% change year-on-year +7.69% +8.33%  

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 28 May 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 28 May 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 +1 2 £688 -
Ontologies
England

For the 6 months to 28 May 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 9 (64.29%) Machine Learning
2 8 (57.14%) Natural Language Processing
3 7 (50.00%) Big Data
3 7 (50.00%) Apache Spark
3 7 (50.00%) SPARQL
3 7 (50.00%) Hadoop
3 7 (50.00%) Banking
4 6 (42.86%) Finance
4 6 (42.86%) Apache
5 5 (35.71%) Stakeholder Management
5 5 (35.71%) Agile Software Development
5 5 (35.71%) Information Retrieval
6 4 (28.57%) Coaching
6 4 (28.57%) Big Data Analytics
6 4 (28.57%) Data Analytics
6 4 (28.57%) Analytics
6 4 (28.57%) Semantic Search
6 4 (28.57%) Cognitive Computing
6 4 (28.57%) Tandem
6 4 (28.57%) Data Modelling
6 4 (28.57%) IBM
6 4 (28.57%) SPSS
6 4 (28.57%) MATLAB
6 4 (28.57%) Apache Cassandra
6 4 (28.57%) Apache Solr
6 4 (28.57%) Artificial Intelligence
6 4 (28.57%) Lucene
7 3 (21.43%) R
7 3 (21.43%) Mahout
7 3 (21.43%) Open Source

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 7 (50.00%) Apache Spark
2 6 (42.86%) Apache
3 4 (28.57%) Apache Solr
4 3 (21.43%) SAS
Applications
1 4 (28.57%) SPSS
2 1 (7.14%) Microsoft Excel
2 1 (7.14%) Microsoft PowerPoint
Cloud Services
1 1 (7.14%) Google Cloud Platform
Database & Business Intelligence
1 7 (50.00%) Big Data
1 7 (50.00%) Hadoop
2 4 (28.57%) Apache Cassandra
3 3 (21.43%) Mahout
4 1 (7.14%) NoSQL
General
1 7 (50.00%) Banking
2 6 (42.86%) Finance
3 2 (14.29%) Investment Banking
4 1 (7.14%) Financial Institution
4 1 (7.14%) Games
Job Titles
1 7 (50.00%) Architect
2 3 (21.43%) Data Architect
2 3 (21.43%) Lead Architect
3 2 (14.29%) Artificial Intelligence Architect
3 2 (14.29%) Development Manager
4 1 (7.14%) Agile Delivery Manager
4 1 (7.14%) Analyst
4 1 (7.14%) Big Data Architect
4 1 (7.14%) Big Data Manager
4 1 (7.14%) Data Modeller
4 1 (7.14%) Delivery Manager
4 1 (7.14%) Developer
4 1 (7.14%) Engineering Manager
4 1 (7.14%) Functional Architect
4 1 (7.14%) IT Director
4 1 (7.14%) Java Development Manager
4 1 (7.14%) Payments Architect
4 1 (7.14%) Python Developer
4 1 (7.14%) Report Analyst
4 1 (7.14%) Senior Data Modeller
Libraries, Frameworks & Software Standards
1 8 (57.14%) Natural Language Processing
2 4 (28.57%) Lucene
3 3 (21.43%) MLlib
3 3 (21.43%) UIMA
4 1 (7.14%) RESTful
4 1 (7.14%) XSD
Miscellaneous
1 4 (28.57%) Tandem
2 3 (21.43%) Management Information System
3 2 (14.29%) Equities
3 2 (14.29%) Foreign Exchange (FX)
3 2 (14.29%) Taxonomies
4 1 (7.14%) Online Banking
4 1 (7.14%) Reference Data
Processes & Methodologies
1 9 (64.29%) Machine Learning
2 5 (35.71%) Agile Software Development
2 5 (35.71%) Information Retrieval
2 5 (35.71%) Stakeholder Management
3 4 (28.57%) Analytics
3 4 (28.57%) Artificial Intelligence
3 4 (28.57%) Big Data Analytics
3 4 (28.57%) Coaching
3 4 (28.57%) Cognitive Computing
3 4 (28.57%) Data Analytics
3 4 (28.57%) Data Modelling
3 4 (28.57%) Semantic Search
4 3 (21.43%) Business Analytics
4 3 (21.43%) Content Management
4 3 (21.43%) CRM
4 3 (21.43%) Data Architecture
4 3 (21.43%) Data Management
4 3 (21.43%) Information Management
4 3 (21.43%) Open Source
4 3 (21.43%) RDF
Programming Languages
1 7 (50.00%) SPARQL
2 4 (28.57%) MATLAB
3 3 (21.43%) R
4 2 (14.29%) Java
5 1 (7.14%) Python
5 1 (7.14%) Scala
Quality Assurance & Compliance
1 2 (14.29%) ISO 20022
1 2 (14.29%) MiFID
2 1 (7.14%) Basel III
2 1 (7.14%) CRD IV
2 1 (7.14%) IFRS
System Software
1 1 (7.14%) Docker
Systems Management
1 1 (7.14%) Kubernetes
Vendors
1 4 (28.57%) IBM
2 1 (7.14%) Google
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