The following table provides summary statistics for permanent job vacancies with a requirement for RDF skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited RDF over the 3 months to 30 March 2017 with a comparison to the same period in the previous 2 years.

Resource Description Framework (RDF)
UK
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 819 911 943
Rank change year-on-year +92 +32  
Permanent jobs citing RDF 33 39 26
As % of all permanent IT jobs advertised in the UK 0.039% 0.037% 0.024%
As % of the Processes & Methodologies category 0.043% 0.042% 0.028%
Number of salaries quoted 29 27 22
Median salary £50,000 £52,500 £45,000
Median salary % change year-on-year -4.76% +16.66%  
90% offered a salary of more than £45,000 £43,000 £43,000
10% offered a salary of more than £60,000 £63,500 £73,500
UK excluding London median salary £45,000 £43,000 £44,000
% change year-on-year +4.65% -2.27%  

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

Process & Methodology Skills
UK
Permanent job vacancies with a requirement for process and methodology skills 76216 92627 93645
As % of all permanent IT job vacancies advertised in the UK 89.14% 88.57% 86.99%
Number of salaries quoted 62695 76706 75786
Median salary £50,000 £50,000 £50,000
90% offered a salary of more than £32,500 £32,500 £31,500
10% offered a salary of more than £77,500 £75,000 £75,000
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

RDF
Job Vacancy Trend

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

Job vacancy trend for RDF in the UK

RDF
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing RDF.

Salary trend for RDF in the UK

RDF
Salary Histogram

The salary distribution of IT jobs citing RDF over the 3 months to 30 March 2017.

Salary histogram for RDF in the UK

RDF
Top 11 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing RDF within the UK over the 3 months to 30 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
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +74 33 £50,000 -4.76%
South East +72 14 £45,000 +28.57%
Oxfordshire +13 14 £45,000 +28.57%
London +57 13 £55,000 +4.76%
City of London +37 4 £52,500 -17.64%
East of England +36 3 £42,500 -
South West +28 3 £57,500 +33.72%
Norwich - 3 £42,500 -
Devon - 3 £57,500 -
Norfolk - 3 £42,500 -
Oxford +1 2 - -

For the 6 months to 30 March 2017, IT jobs citing RDF also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for RDF.

1 41 (56.94%) Agile Software Development
2 39 (54.17%) Java
2 39 (54.17%) SPARQL
3 37 (51.39%) Semantic Web
4 35 (48.61%) XML
5 29 (40.28%) Triplestore
6 28 (38.89%) XSLT
7 27 (37.50%) HTML
8 24 (33.33%) Ontologies
9 23 (31.94%) PHP
10 22 (30.56%) JavaScript
11 21 (29.17%) Software Engineering
12 20 (27.78%) TDD
12 20 (27.78%) RESTful
13 19 (26.39%) CSS
13 19 (26.39%) XML Schema
14 17 (23.61%) SQL
14 17 (23.61%) Big Data
15 16 (22.22%) Web Development
15 16 (22.22%) Drupal
16 15 (20.83%) Zend
16 15 (20.83%) HTTP
16 15 (20.83%) MVC
16 15 (20.83%) Git (software)
17 14 (19.44%) Machine Learning
17 14 (19.44%) Linked Data
17 14 (19.44%) Degree
18 13 (18.06%) Amazon AWS
18 13 (18.06%) Mentoring
18 13 (18.06%) SDLC

RDF
Co-occurring 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 16 (22.22%) Drupal
2 8 (11.11%) Apache
3 7 (9.72%) Elasticsearch
4 6 (8.33%) SilverStripe
4 6 (8.33%) Tomcat
5 4 (5.56%) Apache Solr
6 1 (1.39%) Apache Spark
6 1 (1.39%) SharePoint
6 1 (1.39%) WordPress
Applications
1 4 (5.56%) XMetaL
2 1 (1.39%) Photoshop
Cloud Services
1 13 (18.06%) Amazon AWS
2 5 (6.94%) Google Cloud Platform
3 1 (1.39%) IaaS
3 1 (1.39%) Microsoft Azure
3 1 (1.39%) PaaS
Communications & Networking
1 15 (20.83%) HTTP
2 3 (4.17%) DNS
2 3 (4.17%) Internet
Database & Business Intelligence
1 29 (40.28%) Triplestore
2 17 (23.61%) Big Data
3 12 (16.67%) PostgreSQL
4 11 (15.28%) NoSQL
5 8 (11.11%) MySQL
6 7 (9.72%) MarkLogic
7 6 (8.33%) Text Mining
8 5 (6.94%) Hadoop
9 4 (5.56%) Redis
10 3 (4.17%) Blockchain
10 3 (4.17%) Mahout
10 3 (4.17%) Neo4j
11 2 (2.78%) Data Lake
12 1 (1.39%) Apache Cassandra
12 1 (1.39%) Data Warehouse
12 1 (1.39%) OLAP
12 1 (1.39%) OLTP
12 1 (1.39%) Oracle OLAP
12 1 (1.39%) Pentaho
12 1 (1.39%) SQL Server
Development Applications
1 15 (20.83%) Git (software)
2 8 (11.11%) Maven
3 3 (4.17%) Subversion
3 3 (4.17%) Team Foundation Server
3 3 (4.17%) Travis CI
4 2 (2.78%) Jenkins
5 1 (1.39%) Ant
5 1 (1.39%) Cucumber
5 1 (1.39%) ERwin
5 1 (1.39%) Hudson
5 1 (1.39%) MagicDraw
5 1 (1.39%) Selenium
General
1 11 (15.28%) Publishing
2 8 (11.11%) Games
3 7 (9.72%) Finance
4 5 (6.94%) Telecoms
5 4 (5.56%) Banking
5 4 (5.56%) Marketing
6 3 (4.17%) Legal
6 3 (4.17%) Multimedia
6 3 (4.17%) Retail
7 2 (2.78%) Financial Institution
8 1 (1.39%) Music Industry
8 1 (1.39%) Wholesale Banking
Job Titles
1 48 (66.67%) Developer
2 13 (18.06%) Java Developer
2 13 (18.06%) PHP Developer
2 13 (18.06%) Software Engineer
3 12 (16.67%) PHP Symfony Developer
3 12 (16.67%) PHP Zend Developer
3 12 (16.67%) Semantic Web Developer
3 12 (16.67%) Symfony Developer
3 12 (16.67%) Web Developer
3 12 (16.67%) XML Developer
4 10 (13.89%) Java Engineer
5 9 (12.50%) Architect
5 9 (12.50%) Java Software Engineer
6 7 (9.72%) Software Developer
7 6 (8.33%) Data Architect
8 5 (6.94%) Solutions Architect
9 4 (5.56%) Java Software Developer
9 4 (5.56%) Scala Software Engineer
9 4 (5.56%) Senior Developer
9 4 (5.56%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 35 (48.61%) XML
2 28 (38.89%) XSLT
3 27 (37.50%) HTML
4 20 (27.78%) RESTful
5 19 (26.39%) CSS
5 19 (26.39%) XML Schema
6 12 (16.67%) Symfony
7 11 (15.28%) Apache Jena
7 11 (15.28%) HTML5
8 10 (13.89%) XHTML
9 8 (11.11%) J2EE
9 8 (11.11%) REST
10 7 (9.72%) .NET
10 7 (9.72%) JSON
10 7 (9.72%) Natural Language Processing
10 7 (9.72%) Web Services
10 7 (9.72%) XSL
11 6 (8.33%) Silverlight
12 4 (5.56%) Lucene
12 4 (5.56%) Spring
Miscellaneous
1 37 (51.39%) Semantic Web
2 14 (19.44%) Linked Data
3 11 (15.28%) Computer Science
4 9 (12.50%) Kindle
5 3 (4.17%) Algorithms
5 3 (4.17%) Digital Media
5 3 (4.17%) New Media
5 3 (4.17%) W3C
6 2 (2.78%) Reference Data
7 1 (1.39%) Client/Server
7 1 (1.39%) Data Structures
7 1 (1.39%) Taxonomies
Operating Systems
1 9 (12.50%) Linux
2 4 (5.56%) Windows
3 2 (2.78%) Ubuntu
3 2 (2.78%) Unix
Processes & Methodologies
1 41 (56.94%) Agile Software Development
2 24 (33.33%) Ontologies
3 21 (29.17%) Software Engineering
4 20 (27.78%) TDD
5 16 (22.22%) Web Development
6 15 (20.83%) MVC
7 14 (19.44%) Machine Learning
8 13 (18.06%) Mentoring
8 13 (18.06%) SDLC
9 12 (16.67%) Continuous Integration
9 12 (16.67%) Microservices
9 12 (16.67%) Secure Coding
10 11 (15.28%) Artificial Intelligence
11 8 (11.11%) Analytics
11 8 (11.11%) Data Modelling
11 8 (11.11%) Scrum
12 7 (9.72%) Content Development
12 7 (9.72%) E-Commerce
12 7 (9.72%) ETL
13 6 (8.33%) Data Ingestion
Programming Languages
1 39 (54.17%) Java
1 39 (54.17%) SPARQL
2 23 (31.94%) PHP
3 22 (30.56%) JavaScript
4 17 (23.61%) SQL
5 12 (16.67%) Perl
5 12 (16.67%) XPath
6 11 (15.28%) Python
7 7 (9.72%) C#
7 7 (9.72%) C++
8 6 (8.33%) Scala
9 4 (5.56%) VBA
10 3 (4.17%) CoffeeScript
10 3 (4.17%) XQuery
11 2 (2.78%) Ruby
12 1 (1.39%) C
Qualifications
1 14 (19.44%) Degree
2 3 (4.17%) SC Cleared
2 3 (4.17%) Security Cleared
Quality Assurance & Compliance
1 9 (12.50%) ISO 9001
2 4 (5.56%) QA
3 3 (4.17%) PMO
4 2 (2.78%) Data Quality
5 1 (1.39%) GCP
System Software
1 4 (5.56%) Docker
Vendors
1 15 (20.83%) Zend
2 8 (11.11%) Google
3 3 (4.17%) IBM
4 2 (2.78%) Oracle
4 2 (2.78%) Red Hat
5 1 (1.39%) Informatica