The table below looks at the statistics for TDD skills in IT contracts advertised for the Hounslow region. Included is a guide to the average contractor rates offered in IT contracts that have cited TDD over the 3 months to 24 December 2014 with a comparison to the same period in 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.

Location
3 months to
24 Dec 2014
Same period 2013 Same period 2012
Test-Driven Development (TDD)
Rank 8 5 6
Rank change year-on-year
-3 +1
Contract jobs citing TDD 4 9 10
As % of all contract IT jobs located in Hounslow 9.76% 16.07% 21.28%
As % of the Processes & Methodologies category 12.90% 20.00% 22.73%
Number of daily rates quoted 1 9 9
Average daily rate
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£450 £488 £450
Average daily rate % change year-on-year
-7.69% +8.33%
UK excluding London average daily rate £375 £350 £365
% change year-on-year
+7.14% -4.10%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate £39.50 £33.00 £39.00
% change year-on-year
+19.69% -15.38%
TDD
London

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

Processes & Methodologies Category
Hounslow
Contract IT job ads with a match in the
Processes & Methodologies category
31 45 44
As % of all contract IT jobs located in Hounslow 75.61% 80.36% 93.62%
Number of daily rates quoted 14 39 37
Average daily rate £400 £423 £425
Average daily rate % change year-on-year
-5.32% -0.58%
90% offered a daily rate of more than £334 £284 £140
10% offered a daily rate of more than £500 £495 £450
UK excluding London average daily rate £388 £370 £365
% change year-on-year
+4.72% +1.36%
Number of hourly rates quoted 0 1 0
Average hourly rate - £11.50 -
UK excluding London average hourly rate £25.00 £27.00 £30.00
% change year-on-year
-7.40% -10.00%

TDD
Jobs Demand Trend in Hounslow

This chart provides a 3-month moving total of IT contractor jobs citing TDD across the Hounslow region as a proportion of the total demand within the Processes & Methodologies category.

TDD Jobs Demand Trend in Hounslow

TDD
Daily Rate Trend in Hounslow

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

TDD Daily Rate Trend in Hounslow

TDD
Top 30 Related IT Skills in Hounslow

For the 6 months to 24 December 2014, IT contractor jobs across the Hounslow region citing TDD also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited TDD.

1 5 (83.33%) Java
2 4 (66.67%) BDD
3 3 (50.00%) REST
3 3 (50.00%) OO
3 3 (50.00%) SOA
3 3 (50.00%) Stakeholder Management
4 2 (33.33%) Groovy
4 2 (33.33%) Agile Software Development
4 2 (33.33%) Grails
4 2 (33.33%) Scrum
4 2 (33.33%) HTML
4 2 (33.33%) JUnit
4 2 (33.33%) CSS
4 2 (33.33%) CSS3
4 2 (33.33%) MongoDB
4 2 (33.33%) NoSQL
4 2 (33.33%) HTML5
5 1 (16.67%) Mocha
5 1 (16.67%) Hudson
5 1 (16.67%) QUnit
5 1 (16.67%) Jasmine
5 1 (16.67%) AngularJS
5 1 (16.67%) DevOps
5 1 (16.67%) Spock
5 1 (16.67%) SOAP
5 1 (16.67%) Web Services
5 1 (16.67%) XML
5 1 (16.67%) Windows
5 1 (16.67%) Linux
5 1 (16.67%) JavaScript

TDD
Top Related IT Skills in Hounslow by Category

For the 6 months to 24 December 2014, IT contractor jobs across the Hounslow region citing TDD also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited TDD. Up to 20 skills are shown per category.

Communications & Networking
1 1 (16.67%) HTTP
Database & Business Intelligence
1 2 (33.33%) MongoDB
1 2 (33.33%) NoSQL
2 1 (16.67%) SQL Server
Development Applications
1 2 (33.33%) JUnit
2 1 (16.67%) Subversion
2 1 (16.67%) Git (software)
2 1 (16.67%) Mocha
2 1 (16.67%) Hudson
2 1 (16.67%) QUnit
2 1 (16.67%) Jasmine
2 1 (16.67%) Spock
Job Titles
1 3 (50.00%) Developer
2 2 (33.33%) Senior Developer
2 2 (33.33%) Java Developer
2 2 (33.33%) SOA Architect
2 2 (33.33%) Designer
2 2 (33.33%) SOA Designer
2 2 (33.33%) Architect
3 1 (16.67%) DevOps Engineer
3 1 (16.67%) SOA Developer
3 1 (16.67%) Front-End Developer
3 1 (16.67%) Senior Front-End Developer
3 1 (16.67%) Senior Java Developer
3 1 (16.67%) Java Architect
Libraries, Frameworks & Software Standards
1 3 (50.00%) REST
2 2 (33.33%) CSS3
2 2 (33.33%) HTML5
2 2 (33.33%) CSS
2 2 (33.33%) HTML
2 2 (33.33%) Grails
3 1 (16.67%) RESTful
3 1 (16.67%) .NET
3 1 (16.67%) SOAP
3 1 (16.67%) Web Services
3 1 (16.67%) XML
3 1 (16.67%) Spring
3 1 (16.67%) JSON
3 1 (16.67%) Spring MVC
3 1 (16.67%) AngularJS
Operating Systems
1 1 (16.67%) Windows
1 1 (16.67%) Linux
Processes & Methodologies
1 4 (66.67%) BDD
2 3 (50.00%) OO
2 3 (50.00%) SOA
2 3 (50.00%) Stakeholder Management
3 2 (33.33%) Scrum
3 2 (33.33%) Agile Software Development
4 1 (16.67%) Pair Programming
4 1 (16.67%) Continuous Integration
4 1 (16.67%) Kanban
4 1 (16.67%) Test Automation
4 1 (16.67%) MVC
4 1 (16.67%) DevOps
Programming Languages
1 5 (83.33%) Java
2 2 (33.33%) Groovy
3 1 (16.67%) Bash Shell
3 1 (16.67%) JavaScript
3 1 (16.67%) SQL