The following table provides summary statistics for contract job vacancies advertised in the West Midlands with a requirement for ATDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ATDD over the 3 months to 27 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.

Acceptance Test-Driven Development (ATDD)
England / West Midlands
3 months to
27 Apr 2017
Same period 2016 Same period 2015
Rank - 136 122
Contract jobs citing ATDD 0 1 2
As % of all contract IT jobs advertised in the West Midlands - 0.035% 0.074%
As % of the Processes & Methodologies category - 0.042% 0.097%
Number of daily rates quoted 0 1 2
Median daily rate - £525 £325
Median daily rate % change year-on-year - +61.53%  
UK excluding London median daily rate £450 £388 £338
% change year-on-year +16.12% +14.81%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

ATDD 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 the West Midlands with a requirement for process and methodology skills.

Contract Process & Methodology Skills
West Midlands
Contract job vacancies with a requirement for process and methodology skills 1713 2357 2052
As % of all contract IT job vacancies advertised in the West Midlands 80.01% 82.15% 76.08%
Number of daily rates quoted 1075 1311 1216
Median daily rate £413 £400 £380
Median daily rate % change year-on-year +3.12% +5.40%  
90% offered a daily rate of more than £275 £260 £260
10% offered a daily rate of more than £510 £540 £525
UK excluding London median daily rate £415 £400 £393
% change year-on-year +3.75% +1.91%  
Number of hourly rates quoted 64 49 109
Median hourly rate £21.00 £19.61 £29.00
Median hourly rate % change year-on-year +7.08% -32.37%  
90% offered a hourly rate of more than £12.50 £10.81 £14.00
10% offered a hourly rate of more than £51.00 £42.50 £39.50
UK excluding London median hourly rate £37.24 £36.00 £30.50
% change year-on-year +3.43% +18.03%  

ATDD
Job Vacancy Trend in the West Midlands

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

Job vacancy trend for ATDD in the West Midlands

ATDD
Contractor Daily Rate Trend in the West Midlands

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

Contractor daily rate trend for ATDD in the West Midlands

For the 6 months to 27 April 2017, IT contractor jobs citing ATDD 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 West Midlands region with a requirement for ATDD.

1 3 (100.00%) NUnit
1 3 (100.00%) NHibernate
1 3 (100.00%) .NET Framework
1 3 (100.00%) ReSharper
1 3 (100.00%) WCF
1 3 (100.00%) Continuous Integration
1 3 (100.00%) PowerShell
1 3 (100.00%) Domain-Driven Design
1 3 (100.00%) Microsoft Azure
1 3 (100.00%) Inversion of Control
1 3 (100.00%) NCover
1 3 (100.00%) StyleCop
1 3 (100.00%) MSTest
1 3 (100.00%) NDepend
1 3 (100.00%) BDD
1 3 (100.00%) Entity Framework
1 3 (100.00%) MSBuild
1 3 (100.00%) NServiceBus
1 3 (100.00%) SpecFlow
1 3 (100.00%) NuGet
1 3 (100.00%) C#
1 3 (100.00%) .NET
1 3 (100.00%) Web Services
1 3 (100.00%) Microsoft
1 3 (100.00%) Agile Software Development
1 3 (100.00%) TDD
1 3 (100.00%) Don't repeat yourself (DRY)
1 3 (100.00%) SOLID
1 3 (100.00%) YAGNI
2 2 (66.67%) Mentoring

ATDD
Co-occurring IT Skills in the West Midlands 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 3 (100.00%) NServiceBus
Cloud Services
1 3 (100.00%) Microsoft Azure
Development Applications
1 3 (100.00%) MSBuild
1 3 (100.00%) MSTest
1 3 (100.00%) NCover
1 3 (100.00%) NDepend
1 3 (100.00%) NuGet
1 3 (100.00%) NUnit
1 3 (100.00%) ReSharper
1 3 (100.00%) SpecFlow
1 3 (100.00%) StyleCop
Job Titles
1 3 (100.00%) .NET Developer
1 3 (100.00%) Developer
1 3 (100.00%) Senior .NET Developer
1 3 (100.00%) Senior Developer
2 2 (66.67%) Azure Developer
Libraries, Frameworks & Software Standards
1 3 (100.00%) .NET
1 3 (100.00%) .NET Framework
1 3 (100.00%) Entity Framework
1 3 (100.00%) NHibernate
1 3 (100.00%) WCF
1 3 (100.00%) Web Services
Miscellaneous
1 2 (66.67%) User Experience
Processes & Methodologies
1 3 (100.00%) Agile Software Development
1 3 (100.00%) BDD
1 3 (100.00%) Continuous Integration
1 3 (100.00%) Domain-Driven Design
1 3 (100.00%) Don't repeat yourself (DRY)
1 3 (100.00%) Inversion of Control
1 3 (100.00%) SOLID
1 3 (100.00%) TDD
1 3 (100.00%) YAGNI
2 2 (66.67%) Mentoring
2 2 (66.67%) Pair Programming
3 1 (33.33%) User Stories
Programming Languages
1 3 (100.00%) C#
1 3 (100.00%) PowerShell
Vendors
1 3 (100.00%) Microsoft