The following table provides summary statistics for contract job vacancies advertised in Somerset with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 3 months to 24 April 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.

Test-Driven Development (TDD)
South West / Somerset
3 months to
24 Apr 2017
Same period 2016 Same period 2015
Rank 15 27 51
Rank change year-on-year +12 +24  
Contract jobs citing TDD 17 11 5
As % of all contract IT jobs advertised in Somerset 8.63% 4.15% 1.29%
As % of the Processes & Methodologies category 11.04% 5.12% 1.65%
Number of daily rates quoted 10 10 3
Median daily rate £315 £319 £313
Median daily rate % change year-on-year -1.09% +2.00%  
UK excluding London median daily rate £400 £400 £375
% change year-on-year - +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.25 £44.00 £39.25
% change year-on-year -10.79% +12.10%  

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

Contract Process & Methodology Skills
Somerset
Contract job vacancies with a requirement for process and methodology skills 154 215 303
As % of all contract IT job vacancies advertised in Somerset 78.17% 81.13% 78.09%
Number of daily rates quoted 97 104 199
Median daily rate £385 £400 £413
Median daily rate % change year-on-year -3.75% -3.03%  
90% offered a daily rate of more than £250 £275 £300
10% offered a daily rate of more than £500 £500 £698
UK excluding London median daily rate £413 £400 £393
% change year-on-year +3.12% +1.91%  
Number of hourly rates quoted 24 41 19
Median hourly rate £41.50 £42.25 £37.00
Median hourly rate % change year-on-year -1.77% +14.18%  
90% offered a hourly rate of more than £39.40 £32.50 £29.00
10% offered a hourly rate of more than £52.50 £57.00 £47.00
UK excluding London median hourly rate £36.00 £37.50 £30.35
% change year-on-year -4.00% +23.55%  

TDD
Job Vacancy Trend in Somerset

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

Job vacancy trend for TDD in Somerset

TDD
Contractor Daily Rate Trend in Somerset

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

Contractor daily rate trend for TDD in Somerset

TDD
Contractor Daily Rate Histogram in Somerset

The daily rate distribution of IT jobs citing TDD in Somerset over the 3 months to 24 April 2017.

Contractor daily rate histogram for TDD in Somerset

TDD
Contract Job Locations in Somerset

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Somerset region over the 3 months to 24 April 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
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Taunton 0 5 £240 -
Yeovil - 3 £450 -
Bath 0 2 £425 +36.00% 3
Glastonbury - 1 £458 -
TDD
South West

For the 6 months to 24 April 2017, IT contractor jobs citing TDD 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 Somerset region with a requirement for TDD.

1 30 (88.24%) Agile Software Development
2 20 (58.82%) C#
3 19 (55.88%) .NET
3 19 (55.88%) Selenium
4 18 (52.94%) Java
5 17 (50.00%) BDD
6 16 (47.06%) SQL
7 15 (44.12%) Web Services
7 15 (44.12%) Scrum
7 15 (44.12%) Test Automation
7 15 (44.12%) Continuous Integration
8 14 (41.18%) Unit Testing
8 14 (41.18%) Git (software)
8 14 (41.18%) SpecFlow
8 14 (41.18%) Gherkin
8 14 (41.18%) XML
8 14 (41.18%) Test Planning
9 13 (38.24%) Pair Programming
9 13 (38.24%) MVC
9 13 (38.24%) .NET Framework
10 12 (35.29%) QA
11 11 (32.35%) E-Commerce
11 11 (32.35%) Spring
11 11 (32.35%) SC Cleared
11 11 (32.35%) Security Cleared
11 11 (32.35%) Jenkins
11 11 (32.35%) Team Foundation Server
12 10 (29.41%) SOAP
12 10 (29.41%) CSS
12 10 (29.41%) JavaScript

TDD
Co-occurring IT Skills in Somerset 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 4 (11.76%) NServiceBus
2 2 (5.88%) WebLogic
3 1 (2.94%) Apache
3 1 (2.94%) ATG Dynamo
3 1 (2.94%) IIS
3 1 (2.94%) K2 blackpearl
3 1 (2.94%) nginx
Business Applications
1 1 (2.94%) SAP Oil and Gas
Cloud Services
1 2 (5.88%) GitHub
2 1 (2.94%) Amazon AWS
2 1 (2.94%) Microsoft Azure
Communications & Networking
1 8 (23.53%) Internet
Database & Business Intelligence
1 5 (14.71%) SQL Server
2 1 (2.94%) MySQL
2 1 (2.94%) PostgreSQL
2 1 (2.94%) SQL Server 2012
Development Applications
1 19 (55.88%) Selenium
2 14 (41.18%) Git (software)
2 14 (41.18%) SpecFlow
3 11 (32.35%) Jenkins
3 11 (32.35%) Team Foundation Server
4 10 (29.41%) Subversion
5 9 (26.47%) Ant
5 9 (26.47%) Maven
6 8 (23.53%) Apache Buildr
6 8 (23.53%) Cucumber
6 8 (23.53%) Eclipse
6 8 (23.53%) Gradle
6 8 (23.53%) jMock
6 8 (23.53%) JUnit
6 8 (23.53%) Mercurial
7 7 (20.59%) IntelliJ
8 6 (17.65%) WATIR
9 5 (14.71%) HP UFT
9 5 (14.71%) Sahi
10 2 (5.88%) Bitbucket
General
1 2 (5.88%) Finance
1 2 (5.88%) Retail
2 1 (2.94%) Electronics
2 1 (2.94%) Manufacturing
2 1 (2.94%) Marketing
2 1 (2.94%) Telecoms
Job Titles
1 22 (64.71%) Developer
2 12 (35.29%) C# Developer
3 11 (32.35%) Developer in Test
4 8 (23.53%) Architect
5 7 (20.59%) Technical Architect
6 5 (14.71%) .NET Developer
7 3 (8.82%) SQL Developer
8 2 (5.88%) Senior C# Developer
8 2 (5.88%) Senior Developer
9 1 (2.94%) C# Software Developer
9 1 (2.94%) Java Architect
9 1 (2.94%) Java Developer
9 1 (2.94%) Python Developer
9 1 (2.94%) Senior Software Engineer
9 1 (2.94%) Software Developer
9 1 (2.94%) Software Engineer
9 1 (2.94%) Technical Leader
9 1 (2.94%) Test Leader
9 1 (2.94%) Tester
9 1 (2.94%) WPF Developer
Libraries, Frameworks & Software Standards
1 19 (55.88%) .NET
2 15 (44.12%) Web Services
3 14 (41.18%) Gherkin
3 14 (41.18%) XML
4 13 (38.24%) .NET Framework
5 11 (32.35%) Spring
6 10 (29.41%) CSS
6 10 (29.41%) HTML
6 10 (29.41%) SOAP
7 9 (26.47%) Ajax
7 9 (26.47%) Hibernate
8 8 (23.53%) EJB
8 8 (23.53%) JSF
8 8 (23.53%) JSON
8 8 (23.53%) JSP
8 8 (23.53%) RESTful
8 8 (23.53%) Struts
9 5 (14.71%) WPF
10 4 (11.76%) ASP.NET
10 4 (11.76%) ASP.NET MVC
Miscellaneous
1 7 (20.59%) RIA
1 7 (20.59%) Web 2.0
2 1 (2.94%) N-Tier
2 1 (2.94%) W3C
Operating Systems
1 2 (5.88%) Unix
2 1 (2.94%) Linux
2 1 (2.94%) Windows
Processes & Methodologies
1 30 (88.24%) Agile Software Development
2 17 (50.00%) BDD
3 15 (44.12%) Continuous Integration
3 15 (44.12%) Scrum
3 15 (44.12%) Test Automation
4 14 (41.18%) Test Planning
4 14 (41.18%) Unit Testing
5 13 (38.24%) MVC
5 13 (38.24%) Pair Programming
6 11 (32.35%) E-Commerce
7 8 (23.53%) Automated Testing
7 8 (23.53%) Refactoring
7 8 (23.53%) XML Parsing
8 7 (20.59%) Software Engineering
8 7 (20.59%) Technical Architecture
9 6 (17.65%) Kanban
10 5 (14.71%) Continuous Delivery
10 5 (14.71%) Open Source
11 4 (11.76%) Line Management
11 4 (11.76%) SDLC
Programming Languages
1 20 (58.82%) C#
2 18 (52.94%) Java
3 16 (47.06%) SQL
4 10 (29.41%) JavaScript
5 5 (14.71%) Ruby
6 1 (2.94%) Python
6 1 (2.94%) TypeScript
Qualifications
1 11 (32.35%) SC Cleared
1 11 (32.35%) Security Cleared
2 2 (5.88%) BPSS Clearance
3 1 (2.94%) DV Cleared
3 1 (2.94%) ISEB
Quality Assurance & Compliance
1 12 (35.29%) QA
2 1 (2.94%) PCI DSS
System Software
1 8 (23.53%) Docker
Systems Management
1 8 (23.53%) Ansible
Vendors
1 10 (29.41%) ATG
2 9 (26.47%) Oracle
3 3 (8.82%) hybris
4 1 (2.94%) BEA
4 1 (2.94%) SAP