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 24 May 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
24 May 2016
Same period 2015 Same period 2014
Resource Description Framework (RDF)
Rank 644 606 585
Rank change year-on-year
-38 -21
Contract jobs citing RDF 7 18 26
As % of all contract IT jobs located in the UK 0.013% 0.033% 0.049%
As % of the Processes & Methodologies category 0.016% 0.042% 0.062%
Number of daily rates quoted 7 14 19
Median daily rate £670 £506 £425
Median daily rate % change year-on-year
+32.34% +19.11%
90% offered a daily rate of more than £580 £375 £300
10% offered a daily rate of more than £690 £626 £501
UK excluding London median daily rate £656 £638 £488
% change year-on-year
+2.94% +30.70%
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
43851 42877 41677
As % of all contract IT jobs located in the UK 81.90% 79.19% 77.79%
Number of daily rates quoted 29046 27097 26309
Median daily rate £438 £413 £400
Median daily rate % change year-on-year
+6.06% +3.12%
90% offered a daily rate of more than £300 £280 £275
10% offered a daily rate of more than £600 £575 £550
UK excluding London median daily rate £400 £385 £375
% change year-on-year
+3.89% +2.66%
Number of hourly rates quoted 1017 1228 1245
Median hourly rate £29.00 £30.00 £28.83
Median hourly rate % change year-on-year
-3.33% +4.07%
90% offered a hourly rate of more than £12.50 £12.35 £12.50
10% offered a hourly rate of more than £47.50 £47.83 £50.00
UK excluding London median hourly rate £35.00 £31.00 £30.00
% change year-on-year
+12.90% +3.33%

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 24 May 2016.

RDF Daily Rate Histogram in the UK

RDF
Top 8 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 24 May 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 -19 7 £670 +32.34% 3
London -19 5 £670 +34.00% 3
South West -2 1 £713 +11.76%
Swindon -3 1 £713 +11.76%
Wiltshire -9 1 £713 +11.76%
South East - 1 £600 -
Berkshire - 1 £600 -
Canary Wharf - 1 £550 -

RDF
Top 30 Related IT Skills

For the 6 months to 24 May 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 20 (71.43%) SQL
2 18 (64.29%) Agile Software Development
3 16 (57.14%) JSON
3 16 (57.14%) Java
3 16 (57.14%) XML
3 16 (57.14%) Big Data
4 13 (46.43%) SPARQL
4 13 (46.43%) NoSQL
5 12 (42.86%) Data Modelling
6 10 (35.71%) ETL
6 10 (35.71%) Talend Open Studio
6 10 (35.71%) Talend
7 9 (32.14%) Scala
7 9 (32.14%) Dublin Core
8 8 (28.57%) Hadoop
8 8 (28.57%) Semantic Web
8 8 (28.57%) Reference Data
8 8 (28.57%) Apache Solr
8 8 (28.57%) HBase
8 8 (28.57%) Elasticsearch
8 8 (28.57%) Relational Database
8 8 (28.57%) Apache Spark
8 8 (28.57%) Apache
8 8 (28.57%) Lucene
9 7 (25.00%) Unit Testing
9 7 (25.00%) Data Quality
9 7 (25.00%) Apache Hive
10 6 (21.43%) SDLC
10 6 (21.43%) Functional Programming
10 6 (21.43%) Finance

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 8 (28.57%) Apache
1 8 (28.57%) Apache Solr
1 8 (28.57%) Apache Spark
1 8 (28.57%) Elasticsearch
2 1 (3.57%) Apache Pig
2 1 (3.57%) Jetty
2 1 (3.57%) Tomcat
Cloud Services
1 1 (3.57%) SaaS
Communications & Networking
1 3 (10.71%) HTTP
1 3 (10.71%) HTTPS
2 1 (3.57%) AMQP
2 1 (3.57%) Internet
2 1 (3.57%) MQTT
Database & Business Intelligence
1 16 (57.14%) Big Data
2 13 (46.43%) NoSQL
3 8 (28.57%) Hadoop
3 8 (28.57%) HBase
3 8 (28.57%) Relational Database
4 7 (25.00%) Apache Hive
5 6 (21.43%) RDBMS
6 4 (14.29%) MarkLogic
6 4 (14.29%) MongoDB
7 3 (10.71%) CouchDB
7 3 (10.71%) Triplestore
8 1 (3.57%) Apache Cassandra
8 1 (3.57%) Couchbase
8 1 (3.57%) Data Warehouse
8 1 (3.57%) DB2
8 1 (3.57%) Pentaho
8 1 (3.57%) Star Schema
Development Applications
1 10 (35.71%) Talend Open Studio
2 6 (21.43%) Ant
3 4 (14.29%) Maven
4 3 (10.71%) Git (software)
5 2 (7.14%) Hudson
5 2 (7.14%) Jenkins
5 2 (7.14%) Subversion
General
1 6 (21.43%) Finance
2 4 (14.29%) Banking
2 4 (14.29%) Publishing
3 1 (3.57%) Investment Banking
3 1 (3.57%) Pharmaceutical
Job Titles
1 13 (46.43%) Developer
2 10 (35.71%) Data Engineer
3 9 (32.14%) Scala Developer
4 6 (21.43%) Big Data Engineer
4 6 (21.43%) Java Developer
5 5 (17.86%) NoSQL Engineer
6 4 (14.29%) Hadoop Developer
7 3 (10.71%) Architect
7 3 (10.71%) Big Data Developer
7 3 (10.71%) Data Architect
8 2 (7.14%) Information Architect
8 2 (7.14%) Java Scala Developer
8 2 (7.14%) Lead Developer
8 2 (7.14%) Lead Java Developer
9 1 (3.57%) Data Consultant
9 1 (3.57%) IoT Architect
9 1 (3.57%) Java Hadoop Developer
9 1 (3.57%) Senior Developer
9 1 (3.57%) Senior Java Scala Developer
9 1 (3.57%) Senior Scala Developer
Libraries, Frameworks & Software Standards
1 16 (57.14%) JSON
1 16 (57.14%) XML
2 8 (28.57%) Lucene
3 5 (17.86%) REST
4 3 (10.71%) .NET
4 3 (10.71%) AngularJS
4 3 (10.71%) CSS
4 3 (10.71%) HTML
4 3 (10.71%) jQuery
4 3 (10.71%) RESTful
4 3 (10.71%) Spring
4 3 (10.71%) Web Services
5 2 (7.14%) Akka
5 2 (7.14%) spray
6 1 (3.57%) JAX-RS
6 1 (3.57%) JSON-LD
6 1 (3.57%) Kafka
6 1 (3.57%) Natural Language Processing
6 1 (3.57%) XML Schema
Miscellaneous
1 8 (28.57%) Reference Data
1 8 (28.57%) Semantic Web
2 3 (10.71%) Linked Data
3 2 (7.14%) Computer Science
3 2 (7.14%) Ontologies
3 2 (7.14%) W3C
4 1 (3.57%) Hedge funds
4 1 (3.57%) Internet of Things
4 1 (3.57%) Machine to Machine
4 1 (3.57%) Smart Energy
Operating Systems
1 2 (7.14%) Linux
Processes & Methodologies
1 18 (64.29%) Agile Software Development
2 12 (42.86%) Data Modelling
3 10 (35.71%) ETL
4 7 (25.00%) Unit Testing
5 6 (21.43%) Functional Programming
5 6 (21.43%) SDLC
6 4 (14.29%) Analytics
7 3 (10.71%) SOA
8 2 (7.14%) BDD
8 2 (7.14%) Continuous Delivery
8 2 (7.14%) Data Management
8 2 (7.14%) High Availability
8 2 (7.14%) Information Architecture
8 2 (7.14%) Machine Learning
8 2 (7.14%) OO
8 2 (7.14%) Pair Programming
8 2 (7.14%) Refactoring
8 2 (7.14%) TDD
8 2 (7.14%) Technical Architecture
9 1 (3.57%) Open Source
Programming Languages
1 20 (71.43%) SQL
2 16 (57.14%) Java
3 13 (46.43%) SPARQL
4 9 (32.14%) Scala
5 6 (21.43%) JavaScript
6 3 (10.71%) Python
6 3 (10.71%) Ruby
6 3 (10.71%) XPath
6 3 (10.71%) XQuery
7 2 (7.14%) Clojure
7 2 (7.14%) Groovy
7 2 (7.14%) Perl
7 2 (7.14%) PHP
8 1 (3.57%) C++
Qualifications
1 2 (7.14%) Degree
Quality Assurance & Compliance
1 9 (32.14%) Dublin Core
2 7 (25.00%) Data Quality
3 1 (3.57%) QA
Vendors
1 10 (35.71%) Talend
2 5 (17.86%) Oracle
3 1 (3.57%) Cloudera
3 1 (3.57%) Hortonworks
3 1 (3.57%) MapR
3 1 (3.57%) OpenLink
3 1 (3.57%) Teradata