Period
to 27 July 2017

The following table provides summary statistics for contract job vacancies advertised in Crawley 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 27 July 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)
West Sussex > Crawley
6 months to
27 Jul 2017
Same period 2016 Same period 2015
Rank 36 21 33
Rank change year-on-year -15 +12 +1
Contract jobs citing TDD 4 22 7
As % of all contract IT jobs advertised in Crawley 1.55% 5.77% 2.48%
As % of the Processes & Methodologies category 1.80% 6.36% 2.97%
Number of daily rates quoted 1 16 6
Crawley median daily rate £350 £400 £350
Median daily rate % change year-on-year -12.50% +14.29% -50.00%
West Sussex median daily rate £343 £445 £425
% change year-on-year -23.03% +4.71% -39.29%
Number of hourly rates quoted 0 2 0
Crawley median hourly rate - £45.75 -
West Sussex median hourly rate £45.00 £44.00 £50.00
% change year-on-year +2.27% -12.00% -

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 Crawley with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Crawley
Contract job vacancies with a requirement for process and methodology skills 222 346 236
As % of all contract IT job vacancies advertised in Crawley 86.05% 90.81% 83.69%
Number of daily rates quoted 150 261 168
Crawley median daily rate £395 £403 £375
Median daily rate % change year-on-year -1.86% +7.33% -
10th Percentile £275 £250 £275
90th Percentile £500 £500 £500
West Sussex median daily rate £420 £410 £385
% change year-on-year +2.44% +6.49% +10.00%
Number of hourly rates quoted 4 5 1
Crawley median hourly rate £14.75 £45.00 £15.50
Median hourly rate % change year-on-year -67.22% +190.32% +10.71%
10th Percentile £13.01 £35.35 £15.25
90th Percentile £42.13 £48.15 £15.75
West Sussex median hourly rate £47.50 £40.00 £22.85
% change year-on-year +18.75% +75.05% +36.42%

TDD
Job Vacancy Trend in Crawley

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

Job vacancy trend for TDD in Crawley

TDD
Contractor Daily Rate Trend in Crawley

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

Contractor daily rate trend for TDD in Crawley

TDD
Contractor Hourly Rate Trend in Crawley

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Crawley.

Contractor hourly rate trend for TDD in Crawley

For the 6 months to 27 July 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 Crawley region with a requirement for TDD.

1 4 (100.00%) Agile Software Development
1 4 (100.00%) BDD
2 3 (75.00%) REST
2 3 (75.00%) Microservices
2 3 (75.00%) SDLC
2 3 (75.00%) API Integration
2 3 (75.00%) Java EE
2 3 (75.00%) Refactoring
2 3 (75.00%) Selenium
2 3 (75.00%) Continuous Integration
2 3 (75.00%) Domain-Driven Design
2 3 (75.00%) Spring
2 3 (75.00%) Maven
2 3 (75.00%) Hibernate
2 3 (75.00%) SOAP
2 3 (75.00%) Web Services
2 3 (75.00%) Java
2 3 (75.00%) JUnit
2 3 (75.00%) Cucumber
3 1 (25.00%) ASP.NET
3 1 (25.00%) .NET
3 1 (25.00%) SQL Server
3 1 (25.00%) OO
3 1 (25.00%) MVC
3 1 (25.00%) C#
3 1 (25.00%) Ruby
3 1 (25.00%) RESTful
3 1 (25.00%) ASP.NET MVC
3 1 (25.00%) Git (software)
3 1 (25.00%) WCF

TDD
Co-occurring IT Skills in Crawley 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:

Database & Business Intelligence
1 1 (25.00%) NoSQL
1 1 (25.00%) SQL Server
1 1 (25.00%) SQL Server 2014
Development Applications
1 3 (75.00%) Cucumber
1 3 (75.00%) JUnit
1 3 (75.00%) Maven
1 3 (75.00%) Selenium
2 1 (25.00%) Git (software)
Job Titles
1 4 (100.00%) Developer
2 3 (75.00%) Java Developer
2 3 (75.00%) Senior Developer
2 3 (75.00%) Senior Java Developer
3 1 (25.00%) .NET Developer
Libraries, Frameworks & Software Standards
1 3 (75.00%) Hibernate
1 3 (75.00%) Java EE
1 3 (75.00%) REST
1 3 (75.00%) SOAP
1 3 (75.00%) Spring
1 3 (75.00%) Web Services
2 1 (25.00%) .NET
2 1 (25.00%) ASP.NET
2 1 (25.00%) ASP.NET MVC
2 1 (25.00%) ASP.NET MVC 5
2 1 (25.00%) ASP.NET Web API
2 1 (25.00%) Node.js
2 1 (25.00%) RESTful
2 1 (25.00%) WCF
Miscellaneous
1 1 (25.00%) Greenfield Project
Processes & Methodologies
1 4 (100.00%) Agile Software Development
1 4 (100.00%) BDD
2 3 (75.00%) API Integration
2 3 (75.00%) Continuous Integration
2 3 (75.00%) Domain-Driven Design
2 3 (75.00%) Microservices
2 3 (75.00%) Refactoring
2 3 (75.00%) SDLC
3 1 (25.00%) MVC
3 1 (25.00%) OO
3 1 (25.00%) Web Application Development
Programming Languages
1 3 (75.00%) Java
2 1 (25.00%) C#
2 1 (25.00%) Ruby