The table below looks at the statistics for TDD skills in IT contracts advertised for the Cardiff region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 28 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
28 Jul 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 23 37 24
Rank change year-on-year
+14 -13
Contract jobs citing TDD 16 13 24
As % of all contract IT jobs located in Cardiff 5.44% 3.37% 6.11%
As % of the Processes & Methodologies category 6.84% 4.21% 7.25%
Number of daily rates quoted 14 7 19
Median daily rate £475 £375 £425
Median daily rate % change year-on-year
+26.66% -11.76%
90% offered a daily rate of more than £302 £350 £345
10% offered a daily rate of more than £493 £404 £525
UK excluding London median daily rate £425 £375 £375
% change year-on-year
+13.33% -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £40.00 £59.50
% change year-on-year
- -32.77%
TDD
South Wales

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

Processes & Methodologies Category
Cardiff
Contract IT job ads with a match in the
Processes & Methodologies category
234 309 331
As % of all contract IT jobs located in Cardiff 79.59% 80.05% 84.22%
Number of daily rates quoted 183 254 247
Median daily rate £375 £350 £375
Median daily rate % change year-on-year
+7.14% -6.66%
90% offered a daily rate of more than £210 £250 £220
10% offered a daily rate of more than £500 £440 £500
UK excluding London median daily rate £400 £388 £375
% change year-on-year
+3.22% +3.33%
Number of hourly rates quoted 3 8 1
Median hourly rate £15.50 £15.75 £13.50
Median hourly rate % change year-on-year
-1.58% +16.66%
UK excluding London median hourly rate £30.00 £30.00 £26.98
% change year-on-year
- +11.21%

TDD
Jobs Demand Trend in Cardiff

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

TDD Jobs Demand Trend in Cardiff

TDD
Daily Rate Trend in Cardiff

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

TDD Daily Rate Trend in Cardiff

TDD
Daily Rate Histogram in Cardiff

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Cardiff region over the 3 months to 28 July 2016.

TDD Daily Rate Histogram in Cardiff

TDD
Hourly Rate Trend in Cardiff

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

TDD Hourly Rate Trend in Cardiff

TDD
Top 30 Related IT Skills in Cardiff

For the 6 months to 28 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 Cardiff region with a requirement for TDD.

1 84 (93.33%) Agile Software Development
2 72 (80.00%) JavaScript
3 67 (74.44%) jQuery
4 57 (63.33%) Web Development
5 56 (62.22%) Selenium
6 54 (60.00%) CSS
7 49 (54.44%) Java
8 41 (45.56%) OO
9 40 (44.44%) Unix
9 40 (44.44%) Software Engineering
10 38 (42.22%) Scrum
11 37 (41.11%) Perl
12 36 (40.00%) HTML
12 36 (40.00%) Cucumber
13 31 (34.44%) BDD
13 31 (34.44%) .NET
14 30 (33.33%) Visual Studio
14 30 (33.33%) AngularJS
15 29 (32.22%) C#
16 26 (28.89%) MVC
16 26 (28.89%) Legal
16 26 (28.89%) Unit Testing
17 25 (27.78%) WCF
18 23 (25.56%) Test-First Development
18 23 (25.56%) NUnit
18 23 (25.56%) Continuous Integration
18 23 (25.56%) MSTest
18 23 (25.56%) TypeScript
18 23 (25.56%) ATDD
18 23 (25.56%) HTML5

TDD
Top Related IT Skills in Cardiff 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 9 (10.00%) Confluence
1 9 (10.00%) FileNet
1 9 (10.00%) LiveCycle
2 8 (8.89%) Tomcat
3 7 (7.78%) GeoServer
3 7 (7.78%) IIS
3 7 (7.78%) JBoss
4 2 (2.22%) CMS
4 2 (2.22%) Sitecore CMS
4 2 (2.22%) Umbraco
5 1 (1.11%) Apache
5 1 (1.11%) Elasticsearch
Applications
1 7 (7.78%) Gliffy
2 6 (6.67%) MS Excel
Cloud Services
1 1 (1.11%) Google Play
Communications & Networking
1 3 (3.33%) FTP
Database & Business Intelligence
1 18 (20.00%) SQL Server
2 15 (16.67%) MongoDB
2 15 (16.67%) NoSQL
3 9 (10.00%) SQL Server Reporting Services
4 7 (7.78%) BusinessObjects
4 7 (7.78%) Couchbase
4 7 (7.78%) SQL Server 2008
4 7 (7.78%) SQL Server 2012
4 7 (7.78%) SQL Server Integration Services
5 4 (4.44%) Redis
Development Applications
1 56 (62.22%) Selenium
2 36 (40.00%) Cucumber
3 30 (33.33%) Visual Studio
4 23 (25.56%) MbUnit
4 23 (25.56%) MSTest
4 23 (25.56%) NUnit
5 19 (21.11%) Git (software)
6 12 (13.33%) Subversion
7 10 (11.11%) JIRA
8 9 (10.00%) Ant
8 9 (10.00%) Hudson
8 9 (10.00%) Jenkins
8 9 (10.00%) Maven
8 9 (10.00%) SpecFlow
9 8 (8.89%) JUnit
10 7 (7.78%) DbUnit
10 7 (7.78%) Eclipse
10 7 (7.78%) Mercurial
10 7 (7.78%) Spock
10 7 (7.78%) TeamCity
General
1 26 (28.89%) Legal
2 22 (24.44%) Finance
3 3 (3.33%) Publishing
Job Titles
1 81 (90.00%) Developer
2 28 (31.11%) Web Developer
3 18 (20.00%) Agile Developer
4 16 (17.78%) Senior Agile Developer
4 16 (17.78%) Senior Developer
5 14 (15.56%) Website Developer
6 12 (13.33%) Perl Developer
7 10 (11.11%) .NET Developer
7 10 (11.11%) Java Developer
7 10 (11.11%) JavaScript Developer
8 8 (8.89%) SC Cleared Java Developer
9 4 (4.44%) Test Engineer
9 4 (4.44%) Unix Developer
10 3 (3.33%) ASP.NET Developer
11 2 (2.22%) Analyst
11 2 (2.22%) Architect
11 2 (2.22%) C# Developer
11 2 (2.22%) Perl Web Developer
11 2 (2.22%) Technical Architect
11 2 (2.22%) Test Analyst
Libraries, Frameworks & Software Standards
1 67 (74.44%) jQuery
2 54 (60.00%) CSS
3 36 (40.00%) HTML
4 31 (34.44%) .NET
5 30 (33.33%) AngularJS
6 25 (27.78%) WCF
7 23 (25.56%) ASP.NET Web API
7 23 (25.56%) CSS3
7 23 (25.56%) HTML5
7 23 (25.56%) KnockoutJS
8 13 (14.44%) REST
9 12 (13.33%) SOAP
9 12 (13.33%) XML
10 10 (11.11%) ASP.NET
10 10 (11.11%) Spring
11 9 (10.00%) ASP.NET MVC
11 9 (10.00%) JSF
12 8 (8.89%) Gherkin
12 8 (8.89%) Hibernate
12 8 (8.89%) Mojolicious
Miscellaneous
1 7 (7.78%) Replication
2 3 (3.33%) Mobile App
3 1 (1.11%) Enterprise Software
3 1 (1.11%) N-Tier
Operating Systems
1 40 (44.44%) Unix
2 4 (4.44%) Linux
3 1 (1.11%) Android
Processes & Methodologies
1 84 (93.33%) Agile Software Development
2 57 (63.33%) Web Development
3 41 (45.56%) OO
4 40 (44.44%) Software Engineering
5 38 (42.22%) Scrum
6 31 (34.44%) BDD
7 26 (28.89%) MVC
7 26 (28.89%) Unit Testing
8 23 (25.56%) ATDD
8 23 (25.56%) Continuous Integration
8 23 (25.56%) DevOps
8 23 (25.56%) Test-First Development
9 16 (17.78%) Mentoring
10 13 (14.44%) Test Automation
11 8 (8.89%) Document Management
12 6 (6.67%) Dependency Injection
12 6 (6.67%) Service Delivery
13 4 (4.44%) Automated Testing
14 3 (3.33%) Open Source
14 3 (3.33%) Workflow
Programming Languages
1 72 (80.00%) JavaScript
2 49 (54.44%) Java
3 37 (41.11%) Perl
4 29 (32.22%) C#
5 23 (25.56%) TypeScript
6 12 (13.33%) SQL
7 10 (11.11%) T-SQL
8 6 (6.67%) Python
9 4 (4.44%) Go
9 4 (4.44%) PHP
9 4 (4.44%) Scala
10 2 (2.22%) Shell Script
11 1 (1.11%) ANSI SQL
Qualifications
1 14 (15.56%) Security Cleared
2 9 (10.00%) SC Cleared
3 6 (6.67%) BPSS Clearance
4 5 (5.56%) BC Cleared
4 5 (5.56%) DV Cleared
5 2 (2.22%) ISEB
5 2 (2.22%) ISTQB
Quality Assurance & Compliance
1 10 (11.11%) QA
2 5 (5.56%) Disclosure Scotland
3 2 (2.22%) SDET
Vendors
1 9 (10.00%) Adobe
1 9 (10.00%) ILOG
1 9 (10.00%) Splunk
2 7 (7.78%) Kofax
3 5 (5.56%) Microsoft
4 3 (3.33%) Sitecore
5 2 (2.22%) Alterian
6 1 (1.11%) Google