The table below looks at the statistics for TDD skills in IT contracts advertised for the Gatwick region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 23 July 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
23 Jul 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 17 14 -
Rank change year-on-year
-3 -
Contract jobs citing TDD 4 3 0
As % of all contract IT jobs located in Gatwick 5.41% 5.66% -
As % of the Processes & Methodologies category 5.63% 6.38% -
Number of daily rates quoted 4 0 0
Median daily rate £330 - -
UK excluding London median daily rate £420 £375 £375
% change year-on-year
+12.00% -
Number of hourly rates quoted 0 3 0
Median hourly rate - £50.00 -
UK excluding London median hourly rate £40.00 £40.00 £71.00
% change year-on-year
- -43.66%
TDD
West Sussex

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Gatwick region.

Processes & Methodologies Category
Gatwick
Contract IT job ads with a match in the
Processes & Methodologies category
71 47 36
As % of all contract IT jobs located in Gatwick 95.95% 88.68% 83.72%
Number of daily rates quoted 45 29 29
Median daily rate £365 £343 £363
Median daily rate % change year-on-year
+6.56% -5.51%
90% offered a daily rate of more than £295 £300 £210
10% offered a daily rate of more than £500 £450 £440
UK excluding London median daily rate £400 £385 £375
% change year-on-year
+3.89% +2.66%
Number of hourly rates quoted 8 5 1
Median hourly rate £51.50 £50.00 £16.00
Median hourly rate % change year-on-year
+3.00% +212.50%
UK excluding London median hourly rate £28.50 £30.00 £27.50
% change year-on-year
-5.00% +9.09%

TDD
Jobs Demand Trend in Gatwick

The demand trend of contract jobs across the Gatwick region citing TDD as a proportion of all IT contracts with a match in the Processes & Methodologies category.

TDD Jobs Demand Trend in Gatwick

TDD
Daily Rate Trend in Gatwick

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing TDD across the Gatwick region.

TDD Daily Rate Trend in Gatwick

TDD
Daily Rate Histogram in Gatwick

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Gatwick region over the 3 months to 23 July 2016.

TDD Daily Rate Histogram in Gatwick

TDD
Hourly Rate Trend in Gatwick

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

TDD Hourly Rate Trend in Gatwick

TDD
Top 30 Related IT Skills in Gatwick

For the 6 months to 23 July 2016, 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 Gatwick region with a requirement for TDD.

1 7 (100.00%) Agile Software Development
2 5 (71.43%) Software Engineering
3 4 (57.14%) Linux
3 4 (57.14%) Scrum
3 4 (57.14%) BDD
4 3 (42.86%) Automated Testing
4 3 (42.86%) Embedded Systems
4 3 (42.86%) Mobile App
4 3 (42.86%) C++
4 3 (42.86%) Degree
4 3 (42.86%) Computer Science
4 3 (42.86%) Continuous Integration
4 3 (42.86%) Multithreading
5 2 (28.57%) QMS
5 2 (28.57%) Android
5 2 (28.57%) Git (software)
5 2 (28.57%) Windows
5 2 (28.57%) Shell Script
5 2 (28.57%) Configuration Management
5 2 (28.57%) Quality Management
5 2 (28.57%) Android SDK
5 2 (28.57%) Android Development
5 2 (28.57%) User Experience
5 2 (28.57%) Mobile Development
5 2 (28.57%) Test Strategy
5 2 (28.57%) Jenkins
5 2 (28.57%) Exploratory Testing
6 1 (14.29%) Cocoa Touch
6 1 (14.29%) DO-178B
6 1 (14.29%) Rational DOORS

TDD
Top Related IT Skills in Gatwick 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:

Cloud Services
1 1 (14.29%) Google Play
Communications & Networking
1 1 (14.29%) Broadband
1 1 (14.29%) Ethernet
1 1 (14.29%) LTE
Development Applications
1 2 (28.57%) Git (software)
1 2 (28.57%) Jenkins
2 1 (14.29%) Hudson
2 1 (14.29%) JIRA
2 1 (14.29%) Rational DOORS
2 1 (14.29%) Subversion
2 1 (14.29%) VectorCAST
General
1 1 (14.29%) Avionics
Job Titles
1 3 (42.86%) Developer
2 2 (28.57%) Android Developer
2 2 (28.57%) Software Engineer
3 1 (14.29%) Agile Tester
3 1 (14.29%) C++ Software Engineer
3 1 (14.29%) Embedded C++ Engineer
3 1 (14.29%) Embedded Engineer
3 1 (14.29%) iOS Developer
3 1 (14.29%) Software Test Engineer
3 1 (14.29%) Software Tester
3 1 (14.29%) Test Engineer
3 1 (14.29%) Tester
Libraries, Frameworks & Software Standards
1 2 (28.57%) Android SDK
2 1 (14.29%) Cocoa
2 1 (14.29%) Cocoa Touch
2 1 (14.29%) Core Animation
Miscellaneous
1 3 (42.86%) Computer Science
1 3 (42.86%) Embedded Systems
1 3 (42.86%) Mobile App
2 2 (28.57%) User Experience
3 1 (14.29%) Animation
Operating Systems
1 4 (57.14%) Linux
2 2 (28.57%) Android
2 2 (28.57%) Windows
3 1 (14.29%) Apple iOS
Processes & Methodologies
1 7 (100.00%) Agile Software Development
2 5 (71.43%) Software Engineering
3 4 (57.14%) BDD
3 4 (57.14%) Scrum
4 3 (42.86%) Automated Testing
4 3 (42.86%) Continuous Integration
4 3 (42.86%) Multithreading
5 2 (28.57%) Android Development
5 2 (28.57%) Configuration Management
5 2 (28.57%) Exploratory Testing
5 2 (28.57%) Mobile Development
5 2 (28.57%) QMS
5 2 (28.57%) Quality Management
5 2 (28.57%) Test Strategy
6 1 (14.29%) Change Management
6 1 (14.29%) Cross-Platform Development
6 1 (14.29%) iOS Development
6 1 (14.29%) SOLID
6 1 (14.29%) Systems Analysis
6 1 (14.29%) UML
Programming Languages
1 3 (42.86%) C++
2 2 (28.57%) Shell Script
3 1 (14.29%) ANSI C
3 1 (14.29%) C
3 1 (14.29%) Embedded C
3 1 (14.29%) Objective-C
Qualifications
1 3 (42.86%) Degree
Quality Assurance & Compliance
1 1 (14.29%) DO-178B
Vendors
1 1 (14.29%) Apple
1 1 (14.29%) ION Trading