The table below looks at the prevalence of the term Semantic Web in contract job vacancies advertised in London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Semantic Web over the 3 months to 29 March 2017 with a comparison to the same period over 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.

Semantic Web
England / London
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 404 430 397
Rank change year-on-year +26 -33  
Contract jobs citing Semantic Web 4 9 9
As % of all contract IT jobs advertised in London 0.020% 0.040% 0.042%
As % of the Miscellaneous category 0.058% 0.12% 0.12%
Number of daily rates quoted 4 8 7
Median daily rate £370 £470 £320
Median daily rate % change year-on-year -21.27% +46.87%  
UK excluding London median daily rate £475 £550 £328
% change year-on-year -13.63% +67.93%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Semantic Web is in the generic IT 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 generic IT skills.

Generic IT Skills
London
Contract job vacancies with a requirement for generic IT skills 6850 7808 7548
As % of all contract IT job vacancies advertised in London 35.02% 34.79% 35.46%
Number of daily rates quoted 4777 5564 5124
Median daily rate £500 £475 £463
Median daily rate % change year-on-year +5.26% +2.70%  
90% offered a daily rate of more than £313 £293 £290
10% offered a daily rate of more than £650 £650 £641
UK excluding London median daily rate £395 £375 £375
% change year-on-year +5.33% -  
Number of hourly rates quoted 123 125 140
Median hourly rate £27.50 £19.75 £18.70
Median hourly rate % change year-on-year +39.27% +5.58%  
90% offered a hourly rate of more than £13.82 £12.45 £13.25
10% offered a hourly rate of more than £55.00 £41.60 £40.00
UK excluding London median hourly rate £19.50 £26.50 £18.50
% change year-on-year -26.41% +43.24%  

Semantic Web
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing Semantic Web as a proportion of all contract or permanent IT jobs with a match in the Miscellaneous category.

Job vacancy trend for Semantic Web in London

Semantic Web
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Semantic Web in London

For the 6 months to 29 March 2017, IT contractor jobs citing Semantic Web 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 Semantic Web.

1 7 (100.00%) HTML
1 7 (100.00%) RDF
1 7 (100.00%) SPARQL
2 4 (57.14%) Middleware
2 4 (57.14%) Java
2 4 (57.14%) JavaScript
2 4 (57.14%) HTML5
2 4 (57.14%) Linked Data
3 3 (42.86%) Performance Analysis
3 3 (42.86%) Coaching
3 3 (42.86%) Front End Development
3 3 (42.86%) JSON-LD
3 3 (42.86%) Secure Coding
3 3 (42.86%) BDD
3 3 (42.86%) RabbitMQ
3 3 (42.86%) Apache Qpid
3 3 (42.86%) Digital Media
3 3 (42.86%) Shibboleth
3 3 (42.86%) Web Accessibility
3 3 (42.86%) Test Automation
3 3 (42.86%) RESTful
3 3 (42.86%) Agile Software Development
3 3 (42.86%) TDD
3 3 (42.86%) Software Engineering
3 3 (42.86%) C
3 3 (42.86%) JSON
3 3 (42.86%) Web Services
3 3 (42.86%) XML
3 3 (42.86%) W3C
3 3 (42.86%) SAML

Semantic Web
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 3 (42.86%) Apache Qpid
Communications & Networking
1 3 (42.86%) HTTP
1 3 (42.86%) SNMP
Database & Business Intelligence
1 1 (14.29%) Big Data
General
1 3 (42.86%) Pharmaceutical
1 3 (42.86%) Publishing
Job Titles
1 5 (71.43%) Developer
2 3 (42.86%) Java Developer
3 2 (28.57%) Web Developer
4 1 (14.29%) Big Data Developer
4 1 (14.29%) C Developer
4 1 (14.29%) Front End Developer (Client-Side Developer)
4 1 (14.29%) Front End Web Developer (Client-Side Developer)
4 1 (14.29%) Java Web Developer
4 1 (14.29%) Lead Developer
4 1 (14.29%) Semantic Web Developer
4 1 (14.29%) Semantic Web Java Developer
4 1 (14.29%) Team Leader
Libraries, Frameworks & Software Standards
1 7 (100.00%) HTML
2 4 (57.14%) HTML5
2 4 (57.14%) Middleware
3 3 (42.86%) JSON
3 3 (42.86%) JSON-LD
3 3 (42.86%) RabbitMQ
3 3 (42.86%) RESTful
3 3 (42.86%) SAML
3 3 (42.86%) Web Services
3 3 (42.86%) XML
Miscellaneous
1 4 (57.14%) Linked Data
2 3 (42.86%) Digital Media
2 3 (42.86%) W3C
3 2 (28.57%) Embedded Systems
Operating Systems
1 2 (28.57%) Unix
Processes & Methodologies
1 7 (100.00%) RDF
2 3 (42.86%) Agile Software Development
2 3 (42.86%) BDD
2 3 (42.86%) Benchmarking
2 3 (42.86%) Coaching
2 3 (42.86%) Front End Development
2 3 (42.86%) Performance Analysis
2 3 (42.86%) PLM
2 3 (42.86%) Scrum
2 3 (42.86%) Secure Coding
2 3 (42.86%) Software Engineering
2 3 (42.86%) TDD
2 3 (42.86%) Test Automation
2 3 (42.86%) Web Accessibility
3 2 (28.57%) DevOps
3 2 (28.57%) Web Development
Programming Languages
1 7 (100.00%) SPARQL
2 4 (57.14%) Java
2 4 (57.14%) JavaScript
3 3 (42.86%) C
4 2 (28.57%) TypeScript
System Software
1 3 (42.86%) Shibboleth