Period
to 19 November 2017

The following table provides summary statistics for contract job vacancies advertised in Wiltshire with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 19 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.

Test-Driven Development (TDD)
South West > Wiltshire
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 58 63 59
Rank change year-on-year +5 -4 +9
Contract jobs citing TDD 29 25 35
As % of all contract IT jobs advertised in Wiltshire 2.36% 1.92% 2.28%
As % of the Processes & Methodologies category 2.78% 2.35% 2.88%
Number of daily rates quoted 21 17 29
Wiltshire median daily rate £388 £345 £325
Median daily rate % change year-on-year +12.32% +6.15% +1.56%
10th Percentile £310 £312 £293
90th Percentile £430 £438 £388
South West median daily rate £400 £375 £375
% change year-on-year +6.67% - +7.14%
Number of hourly rates quoted 0 0 2
Wiltshire median hourly rate - - £29.00
South West median hourly rate - £37.50 £29.00
% change year-on-year - +29.31% -25.64%

TDD 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 advertised in Wiltshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Wiltshire
Contract vacancies with a requirement for process or methodology skills 1045 1063 1217
As % of all contract IT jobs advertised in Wiltshire 85.10% 81.83% 79.23%
Number of daily rates quoted 702 759 834
Wiltshire median daily rate £425 £400 £385
Median daily rate % change year-on-year +6.25% +3.90% -3.75%
10th Percentile £290 £257 £255
90th Percentile £599 £575 £542
South West median daily rate £400 £375 £375
% change year-on-year +6.67% - -
Number of hourly rates quoted 16 23 33
Wiltshire median hourly rate £33.50 £38.50 £34.00
Median hourly rate % change year-on-year -12.99% +13.24% +21.43%
10th Percentile £13.00 £13.30 £13.83
90th Percentile £40.75 £47.50 £45.65
South West median hourly rate £35.00 £31.50 £38.77
% change year-on-year +11.11% -18.75% +47.70%

TDD
Job Vacancy Trend in Wiltshire

Job postings citing TDD as a percentage of all IT jobs advertised in Wiltshire.

Job vacancy trend for TDD in Wiltshire

TDD
Contractor Daily Rate Trend in Wiltshire

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

Contractor daily rate trend for TDD in Wiltshire

TDD
Contractor Daily Rate Histogram in Wiltshire

The daily rate distribution of IT jobs citing TDD in Wiltshire over the 6 months to 19 November 2017.

Contractor daily rate histogram for TDD in Wiltshire

TDD
Contract Job Locations in Wiltshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Wiltshire region over the 6 months to 19 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
Swindon +6 20 £384 +11.23% 1
Malmesbury - 2 £348 -
Corsham - 1 - -
TDD
South West

For the 6 months to 19 November 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 Wiltshire region with a requirement for TDD.

1 23 (79.31%) Agile Software Development
2 17 (58.62%) BDD
3 14 (48.28%) MVC
3 14 (48.28%) JavaScript
4 13 (44.83%) Scrum
5 11 (37.93%) MVVM
5 11 (37.93%) Jasmine
5 11 (37.93%) AngularJS
5 11 (37.93%) React
6 10 (34.48%) Cucumber
6 10 (34.48%) OO
7 9 (31.03%) Gherkin
7 9 (31.03%) Selenium
7 9 (31.03%) Continuous Integration
7 9 (31.03%) Ext JS
8 7 (24.14%) jQuery
9 6 (20.69%) Unit Testing
9 6 (20.69%) Git (software)
9 6 (20.69%) Node.js
9 6 (20.69%) Sencha
10 5 (17.24%) Finance
10 5 (17.24%) Service Design
10 5 (17.24%) Redux
10 5 (17.24%) Digital Transformation Programme
11 4 (13.79%) Front End Development
11 4 (13.79%) E-Commerce
11 4 (13.79%) HTML
11 4 (13.79%) iPad
11 4 (13.79%) Kanban
12 3 (10.34%) Test Automation

TDD
Co-occurring IT Skills in Wiltshire 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 2 (6.90%) Confluence
2 1 (3.45%) CMS
2 1 (3.45%) Liferay
Cloud Services
1 1 (3.45%) Sauce Labs
Database & Business Intelligence
1 1 (3.45%) MongoDB
1 1 (3.45%) Redis
1 1 (3.45%) SQL Server
Development Applications
1 11 (37.93%) Jasmine
2 10 (34.48%) Cucumber
3 9 (31.03%) Selenium
4 6 (20.69%) Git (software)
5 3 (10.34%) JIRA
6 2 (6.90%) Bitbucket
7 1 (3.45%) Atlassian Bamboo
7 1 (3.45%) Gradle
7 1 (3.45%) HP UFT
7 1 (3.45%) Jenkins
7 1 (3.45%) JMeter
7 1 (3.45%) Maven
7 1 (3.45%) SpecFlow
7 1 (3.45%) Team Foundation Server
7 1 (3.45%) WebDriver
General
1 5 (17.24%) Finance
2 1 (3.45%) Banking
2 1 (3.45%) Military
Job Titles
1 22 (75.86%) Developer
2 4 (13.79%) Node.js Developer
2 4 (13.79%) Sencha Developer
2 4 (13.79%) Web Developer
3 3 (10.34%) Front End Developer (Client-Side Developer)
3 3 (10.34%) iOS Developer
3 3 (10.34%) JavaScript Developer
3 3 (10.34%) UI Developer
4 2 (6.90%) Agile Business Analyst
4 2 (6.90%) Analyst
4 2 (6.90%) Business Analyst
4 2 (6.90%) Digital Analyst
4 2 (6.90%) Digital Business Analyst
4 2 (6.90%) Java Developer
4 2 (6.90%) Lead Business Analyst
5 1 (3.45%) ASP.NET MVC Developer
5 1 (3.45%) Head of Design
5 1 (3.45%) Head of Information
5 1 (3.45%) Head of Information Systems
5 1 (3.45%) Web UI Developer
Libraries, Frameworks & Software Standards
1 11 (37.93%) AngularJS
1 11 (37.93%) React
2 9 (31.03%) Ext JS
2 9 (31.03%) Gherkin
3 7 (24.14%) jQuery
4 6 (20.69%) Node.js
5 5 (17.24%) Redux
6 4 (13.79%) HTML
7 3 (10.34%) Angular 2
7 3 (10.34%) CSS
8 2 (6.90%) .NET
8 2 (6.90%) .NET Framework
8 2 (6.90%) HTML5
8 2 (6.90%) REST
8 2 (6.90%) Sass
8 2 (6.90%) Spring
8 2 (6.90%) Spring MVC
9 1 (3.45%) ASP.NET MVC
9 1 (3.45%) Ember.js
9 1 (3.45%) LESS
Miscellaneous
1 4 (13.79%) iPad
2 2 (6.90%) Mobile App
3 1 (3.45%) Greenfield Project
3 1 (3.45%) PMI
Operating Systems
1 3 (10.34%) Apple iOS
Processes & Methodologies
1 23 (79.31%) Agile Software Development
2 17 (58.62%) BDD
3 14 (48.28%) MVC
4 13 (44.83%) Scrum
5 11 (37.93%) MVVM
6 10 (34.48%) OO
7 9 (31.03%) Continuous Integration
8 6 (20.69%) Unit Testing
9 5 (17.24%) Digital Transformation Programme
9 5 (17.24%) Service Design
10 4 (13.79%) E-Commerce
10 4 (13.79%) Front End Development
10 4 (13.79%) Kanban
11 3 (10.34%) iOS Development
11 3 (10.34%) Test Automation
11 3 (10.34%) Web Development
12 2 (6.90%) Configuration Management
12 2 (6.90%) DevOps
12 2 (6.90%) Software Engineering
12 2 (6.90%) Validation
Programming Languages
1 14 (48.28%) JavaScript
2 3 (10.34%) Java
2 3 (10.34%) Objective-C
3 2 (6.90%) C#
4 1 (3.45%) SQL
Qualifications
1 1 (3.45%) Chartered Engineer
1 1 (3.45%) CISSP
1 1 (3.45%) CITP
1 1 (3.45%) Computer Science Degree
1 1 (3.45%) Degree
1 1 (3.45%) DV Cleared
1 1 (3.45%) ITIL Certification
1 1 (3.45%) ITIL Foundation Certificate
1 1 (3.45%) Master's Degree
1 1 (3.45%) PMI Certification
1 1 (3.45%) PRINCE2 Practitioner
1 1 (3.45%) SC Cleared
1 1 (3.45%) Security Cleared
Quality Assurance & Compliance
1 1 (3.45%) ISO/IEC 27001
1 1 (3.45%) QA
System Software
1 2 (6.90%) Docker
Vendors
1 6 (20.69%) Sencha
2 2 (6.90%) Atlassian
3 1 (3.45%) Oracle
3 1 (3.45%) Veracode