The table below looks at the statistics for RDF skills in IT contracts advertised across the UK. Included is a guide to the contractor rates offered in IT contracts that have cited RDF over the 3 months to 30 September 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
30 Sep 2016
Same period 2015 Same period 2014
Resource Description Framework (RDF)
Rank 602 649 625
Rank change year-on-year
+47 -24
Contract jobs citing RDF 50 24 16
As % of all contract IT jobs located in the UK 0.094% 0.041% 0.027%
As % of the Processes & Methodologies category 0.11% 0.051% 0.036%
Number of daily rates quoted 36 19 14
Median daily rate £425 £425 £419
Median daily rate % change year-on-year
- +1.49%
90% offered a daily rate of more than £341 £300 £400
10% offered a daily rate of more than £598 £625 £543
UK excluding London median daily rate £365 £306 £501
% change year-on-year
+19.18% -38.81%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised across the UK.

Processes & Methodologies Category
UK
Contract IT job ads with a match in the
Processes & Methodologies category
44299 46946 44879
As % of all contract IT jobs located in the UK 83.12% 81.11% 77.00%
Number of daily rates quoted 29375 30672 28106
Median daily rate £438 £425 £410
Median daily rate % change year-on-year
+2.94% +3.54%
90% offered a daily rate of more than £300 £288 £275
10% offered a daily rate of more than £590 £583 £575
UK excluding London median daily rate £400 £400 £375
% change year-on-year
- +6.66%
Number of hourly rates quoted 1162 1305 1228
Median hourly rate £31.00 £32.50 £23.75
Median hourly rate % change year-on-year
-4.61% +36.84%
90% offered a hourly rate of more than £12.54 £12.50 £12.50
10% offered a hourly rate of more than £50.00 £50.00 £52.50
UK excluding London median hourly rate £32.50 £34.00 £25.75
% change year-on-year
-4.41% +32.03%

RDF
Jobs Demand Trend

The demand trend of contract jobs citing RDF as a proportion of all IT contracts with a match in the Processes & Methodologies category.

RDF Jobs Demand Trend in the UK

RDF
Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing RDF within the UK.

RDF Daily Rate Trend in the UK

RDF
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing RDF within the UK over the 3 months to 30 September 2016.

RDF Daily Rate Histogram in the UK

RDF
Top 14 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing RDF within the UK over the 3 months to 30 September 2016. 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
(Click see detailed
statistics and trends)
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
England +26 50 £425 - 13
London +44 39 £463 -2.63% 11
Wiltshire +19 4 £349 -45.82%
South West +17 4 £349 -45.82%
South East +16 4 £375 +20.00% 2
Berkshire +7 4 £375 -
City of London +16 3 £388 -26.19% 3
East of England +7 3 £550 -
Cambridgeshire - 3 £550 -
Cambridge - 2 £550 -
Salisbury - 2 £349 -
Bracknell - 2 £450 -
Newbury - 2 £300 -
Huntingdon - 1 - -

RDF
Top 30 Related IT Skills

For the 6 months to 30 September 2016, IT contractor jobs citing RDF also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for RDF.

1 49 (79.03%) SPARQL
2 39 (62.90%) Agile Software Development
3 32 (51.61%) Web Services
4 31 (50.00%) SQL
5 29 (46.77%) Java
5 29 (46.77%) XML
6 28 (45.16%) REST
7 27 (43.55%) HTTP
8 24 (38.71%) NoSQL
9 22 (35.48%) Scrum
10 21 (33.87%) RESTful
11 20 (32.26%) Ontologies
12 19 (30.65%) Software Engineering
13 18 (29.03%) JSON
14 15 (24.19%) TDD
14 15 (24.19%) C
14 15 (24.19%) Triplestore
15 14 (22.58%) C++
16 13 (20.97%) Data Modelling
16 13 (20.97%) Linux
16 13 (20.97%) Python
16 13 (20.97%) BDD
17 12 (19.35%) W3C
18 11 (17.74%) MySQL
18 11 (17.74%) JUnit
18 11 (17.74%) Maven
19 10 (16.13%) HTML
19 10 (16.13%) Linked Data
20 9 (14.52%) Machine Learning
20 9 (14.52%) Big Data

RDF
Top Related IT Skills 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 (11.29%) Apache Spark
2 3 (4.84%) GlassFish
2 3 (4.84%) Tomcat
3 2 (3.23%) Apache
3 2 (3.23%) CMS
3 2 (3.23%) Drupal
3 2 (3.23%) SilverStripe
4 1 (1.61%) Apache Qpid
4 1 (1.61%) ArcGIS
4 1 (1.61%) GeoServer
4 1 (1.61%) Perch
4 1 (1.61%) SAS
Applications
1 3 (4.84%) MS Excel
1 3 (4.84%) MS PowerPoint
2 1 (1.61%) SPSS
Cloud Services
1 5 (8.06%) Amazon AWS
2 1 (1.61%) Microsoft Azure
2 1 (1.61%) SaaS
Communications & Networking
1 27 (43.55%) HTTP
2 2 (3.23%) HTTPS
3 1 (1.61%) AMQP
3 1 (1.61%) Internet
3 1 (1.61%) MQTT
3 1 (1.61%) SNMP
Database & Business Intelligence
1 24 (38.71%) NoSQL
2 15 (24.19%) Triplestore
3 11 (17.74%) MySQL
4 9 (14.52%) Big Data
5 7 (11.29%) Hadoop
6 6 (9.68%) Apache Hive
6 6 (9.68%) HBase
6 6 (9.68%) MongoDB
7 5 (8.06%) MarkLogic
7 5 (8.06%) RDBMS
7 5 (8.06%) Relational Database
8 4 (6.45%) GIS
8 4 (6.45%) SQL Server
9 3 (4.84%) Data Mining
10 2 (3.23%) CouchDB
10 2 (3.23%) PostgreSQL
11 1 (1.61%) Mahout
11 1 (1.61%) Pentaho
11 1 (1.61%) Text Mining
Development Applications
1 11 (17.74%) JUnit
1 11 (17.74%) Maven
2 7 (11.29%) Git (software)
3 5 (8.06%) Ant
3 5 (8.06%) GoCD
3 5 (8.06%) Mercurial
3 5 (8.06%) Mockito
3 5 (8.06%) Subversion
3 5 (8.06%) Wercker
General
1 9 (14.52%) Publishing
2 7 (11.29%) Banking
3 6 (9.68%) Finance
3 6 (9.68%) Investment Banking
4 2 (3.23%) Military
5 1 (1.61%) Advertising
Job Titles
1 25 (40.32%) Developer
2 13 (20.97%) Software Engineer
3 12 (19.35%) Architect
3 12 (19.35%) Java Developer
4 11 (17.74%) Data Architect
5 6 (9.68%) Scala Developer
5 6 (9.68%) Senior Developer
6 5 (8.06%) Lead Developer
6 5 (8.06%) Senior Java Developer
7 4 (6.45%) AWS Developer
8 3 (4.84%) C Software Engineer
8 3 (4.84%) Consultant
8 3 (4.84%) Data Scientist
8 3 (4.84%) Java Scala Developer
8 3 (4.84%) SQL Developer
8 3 (4.84%) Web Developer
9 2 (3.23%) Big Data Developer
9 2 (3.23%) C++ Developer
9 2 (3.23%) Solutions Architect
9 2 (3.23%) XML Consultant
Libraries, Frameworks & Software Standards
1 32 (51.61%) Web Services
2 29 (46.77%) XML
3 28 (45.16%) REST
4 21 (33.87%) RESTful
5 18 (29.03%) JSON
6 10 (16.13%) HTML
7 9 (14.52%) CSS
7 9 (14.52%) JSON-LD
8 5 (8.06%) ActiveMQ
8 5 (8.06%) JAX-RS
8 5 (8.06%) JMS
8 5 (8.06%) Natural Language Processing
8 5 (8.06%) Servlets
8 5 (8.06%) Spring
8 5 (8.06%) XSD
9 4 (6.45%) AngularJS
9 4 (6.45%) Django
9 4 (6.45%) GWT
9 4 (6.45%) Vaadin
9 4 (6.45%) XSLT
Miscellaneous
1 20 (32.26%) Ontologies
2 12 (19.35%) W3C
3 10 (16.13%) Linked Data
4 8 (12.90%) Semantic Web
5 7 (11.29%) Reference Data
6 4 (6.45%) Digital Media
6 4 (6.45%) Neural Network
6 4 (6.45%) Remote Sensing
6 4 (6.45%) Statistics
6 4 (6.45%) Visualisation
7 3 (4.84%) Analytical Skills
7 3 (4.84%) Applied Mathematics
7 3 (4.84%) Computer Science
7 3 (4.84%) Mathematics
7 3 (4.84%) Taxonomies
8 2 (3.23%) Data Extraction
9 1 (1.61%) Algorithms
9 1 (1.61%) Data Structures
9 1 (1.61%) Smart Energy
9 1 (1.61%) Smart Home
Operating Systems
1 13 (20.97%) Linux
Processes & Methodologies
1 39 (62.90%) Agile Software Development
2 22 (35.48%) Scrum
3 19 (30.65%) Software Engineering
4 15 (24.19%) TDD
5 13 (20.97%) BDD
5 13 (20.97%) Data Modelling
6 9 (14.52%) Machine Learning
6 9 (14.52%) Performance Tuning
7 8 (12.90%) Coaching
7 8 (12.90%) High Availability
7 8 (12.90%) Release Management
8 7 (11.29%) Analytics
9 6 (9.68%) Continuous Deployment
9 6 (9.68%) Unit Testing
10 5 (8.06%) API Development
10 5 (8.06%) API Testing
10 5 (8.06%) Data Architecture
10 5 (8.06%) Functional Programming
10 5 (8.06%) Microservices
10 5 (8.06%) Web Development
Programming Languages
1 49 (79.03%) SPARQL
2 31 (50.00%) SQL
3 29 (46.77%) Java
4 15 (24.19%) C
5 14 (22.58%) C++
6 13 (20.97%) Python
7 9 (14.52%) XPath
8 7 (11.29%) Objective-C
8 7 (11.29%) XQuery
9 5 (8.06%) Scala
10 4 (6.45%) JavaScript
10 4 (6.45%) Perl
10 4 (6.45%) PHP
11 3 (4.84%) ANSI C
12 2 (3.23%) C#
13 1 (1.61%) MATLAB
13 1 (1.61%) R
13 1 (1.61%) Ruby
Qualifications
1 6 (9.68%) DV Cleared
1 6 (9.68%) Security Cleared
2 3 (4.84%) Degree
3 2 (3.23%) SC Cleared
Quality Assurance & Compliance
1 6 (9.68%) Dublin Core
2 1 (1.61%) Data Quality
System Software
1 8 (12.90%) Docker
2 1 (1.61%) Shibboleth
Systems Management
1 4 (6.45%) Kibana
2 3 (4.84%) Ansible
2 3 (4.84%) Consul
2 3 (4.84%) Packer
2 3 (4.84%) Terraform
Vendors
1 8 (12.90%) Oracle
2 5 (8.06%) Google
3 4 (6.45%) Facebook
4 3 (4.84%) Microsoft
5 2 (3.23%) i2
6 1 (1.61%) IBM
6 1 (1.61%) Zend
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