Period
to 25 November 2017

The following table provides summary statistics for contract job vacancies with a requirement for RDF skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited RDF over the 6 months to 25 November 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.

Resource Description Framework (RDF)
UK
6 months to
25 Nov 2017
Same period 2016 Same period 2015
Rank 852 810 878
Rank change year-on-year -42 +68 -54
Contract jobs citing RDF 21 76 35
As % of all contract IT jobs advertised in the UK 0.021% 0.073% 0.031%
As % of the Processes & Methodologies category 0.024% 0.087% 0.037%
Number of daily rates quoted 20 55 27
UK median daily rate £625 £450 £450
Median daily rate % change year-on-year +38.89% - -
10th Percentile £570 £322 £275
90th Percentile £653 £624 £644
UK excluding London median daily rate - £349 £313
% change year-on-year - +11.60% -37.56%
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

RDF is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for process or methodology skills.

All Process and Methodology Skills
UK
Contract vacancies with a requirement for process or methodology skills 86458 87823 93607
As % of all contract IT jobs advertised in the UK 84.48% 83.90% 81.82%
Number of daily rates quoted 57609 58040 60628
UK median daily rate £450 £425 £415
Median daily rate % change year-on-year +5.88% +2.41% +3.75%
10th Percentile £281 £263 £263
90th Percentile £635 £600 £600
UK excluding London median daily rate £400 £400 £385
% change year-on-year - +3.90% +2.67%
Number of hourly rates quoted 2024 2360 2750
UK median hourly rate £23.63 £23.50 £22.50
Median hourly rate % change year-on-year +0.53% +4.44% +18.42%
10th Percentile £11.35 £11.25 £11.49
90th Percentile £49.75 £48.41 £47.83
UK excluding London median hourly rate £24.00 £24.00 £23.75
% change year-on-year - +1.05% +18.75%

RDF
Job Vacancy Trend

Job postings citing RDF as a percentage of all IT jobs advertised.

Job vacancy trend for RDF in the UK

RDF
Contractor Daily Rate Trend

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

Contractor daily rate trend for RDF in the UK

RDF
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing RDF over the 6 months to 25 November 2017.

Contractor daily rate histogram for RDF in the UK

RDF
Top 2 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 6 months to 25 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -46 21 £625 +38.89% 8
London -53 21 £625 +35.14% 3

For the 6 months to 25 November 2017, 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 (95.24%) SPARQL
1 20 (95.24%) Linked Data
2 19 (90.48%) Machine Learning
3 14 (66.67%) Big Data
3 14 (66.67%) Natural Language Processing
3 14 (66.67%) Information Retrieval
3 14 (66.67%) Apache Spark
4 12 (57.14%) Semantic Web
5 11 (52.38%) Amazon AWS
6 10 (47.62%) Scala
7 9 (42.86%) Hadoop
7 9 (42.86%) Analytics
7 9 (42.86%) QA
8 8 (38.10%) Ontologies
8 8 (38.10%) Content Management
8 8 (38.10%) Information Management
8 8 (38.10%) Management Information System
8 8 (38.10%) Apache
8 8 (38.10%) CRM
8 8 (38.10%) SAS
8 8 (38.10%) IBM
8 8 (38.10%) SPSS
8 8 (38.10%) MATLAB
8 8 (38.10%) Data Analytics
8 8 (38.10%) Business Analytics
8 8 (38.10%) R
8 8 (38.10%) Big Data Analytics
8 8 (38.10%) Mahout
8 8 (38.10%) Open Source
8 8 (38.10%) MLlib

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 14 (66.67%) Apache Spark
2 8 (38.10%) Apache
2 8 (38.10%) SAS
3 5 (23.81%) Elasticsearch
Applications
1 8 (38.10%) SPSS
Cloud Services
1 11 (52.38%) Amazon AWS
2 1 (4.76%) SaaS
Database & Business Intelligence
1 14 (66.67%) Big Data
2 9 (42.86%) Hadoop
3 8 (38.10%) Mahout
4 5 (23.81%) Neo4j
4 5 (23.81%) Sqoop
5 1 (4.76%) Triplestore
Development Applications
1 1 (4.76%) Git (software)
1 1 (4.76%) Jenkins
1 1 (4.76%) JUnit
1 1 (4.76%) Mockito
General
1 5 (23.81%) Finance
2 4 (19.05%) Banking
3 2 (9.52%) Publishing
Job Titles
1 9 (42.86%) Architect
2 6 (28.57%) Data Scientist
2 6 (28.57%) Developer
2 6 (28.57%) Lead Architect
3 4 (19.05%) Big Data Developer
3 4 (19.05%) Scala Developer
4 3 (14.29%) Apache Spark Developer
4 3 (14.29%) Artificial Intelligence Architect
4 3 (14.29%) Big Data Architect
4 3 (14.29%) Data Architect
4 3 (14.29%) Lead Data Architect
5 2 (9.52%) Big Data Engineer
5 2 (9.52%) Big Data Software Engineer
5 2 (9.52%) Data Engineer
5 2 (9.52%) Developer/Software Engineer
5 2 (9.52%) Machine Learning Scientist
5 2 (9.52%) Scala Software Engineer
5 2 (9.52%) Software Engineer
6 1 (4.76%) Java Developer
6 1 (4.76%) Technical Architect
Libraries, Frameworks & Software Standards
1 14 (66.67%) Natural Language Processing
2 8 (38.10%) MLlib
3 5 (23.81%) Akka
3 5 (23.81%) JSON
3 5 (23.81%) Kafka
3 5 (23.81%) REST
4 2 (9.52%) UIMA
5 1 (4.76%) Apache Jena
5 1 (4.76%) Dojo
5 1 (4.76%) XML
Miscellaneous
1 20 (95.24%) Linked Data
2 12 (57.14%) Semantic Web
3 8 (38.10%) Management Information System
4 6 (28.57%) Algorithms
5 5 (23.81%) Computer Science
5 5 (23.81%) Robotics
6 1 (4.76%) Greenfield Project
6 1 (4.76%) IPTV
6 1 (4.76%) Life Science
6 1 (4.76%) MPEG
6 1 (4.76%) Over-the-Top Content
6 1 (4.76%) Video on Demand
Processes & Methodologies
1 19 (90.48%) Machine Learning
2 14 (66.67%) Information Retrieval
3 9 (42.86%) Analytics
4 8 (38.10%) Big Data Analytics
4 8 (38.10%) Business Analytics
4 8 (38.10%) Content Management
4 8 (38.10%) CRM
4 8 (38.10%) Data Analytics
4 8 (38.10%) Information Management
4 8 (38.10%) Ontologies
4 8 (38.10%) Open Source
5 6 (28.57%) Artificial Intelligence
5 6 (28.57%) Data Munging
5 6 (28.57%) Random Forest
5 6 (28.57%) Sentiment Analysis
5 6 (28.57%) Statistical Analysis
5 6 (28.57%) Statistical Learning
5 6 (28.57%) Use Case
6 5 (23.81%) Mentoring
6 5 (23.81%) Performance Tuning
Programming Languages
1 20 (95.24%) SPARQL
2 10 (47.62%) Scala
3 8 (38.10%) MATLAB
3 8 (38.10%) R
4 6 (28.57%) Python
5 1 (4.76%) Java
Qualifications
1 5 (23.81%) Computer Science Degree
1 5 (23.81%) Degree
Quality Assurance & Compliance
1 9 (42.86%) QA
Systems Management
1 5 (23.81%) Hadoop YARN
1 5 (23.81%) Oozie
Vendors
1 8 (38.10%) IBM
2 5 (23.81%) Blue Prism