The table below looks at the statistics for TDD skills in IT contracts advertised for the Chester region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 6 May 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
6 May 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 18 26 15
Rank change year-on-year
+8 -11
Contract jobs citing TDD 15 9 28
As % of all contract IT jobs located in Chester 7.77% 3.72% 11.43%
As % of the Processes & Methodologies category 9.68% 4.35% 13.21%
Number of daily rates quoted 13 7 11
Median daily rate £400 £375 £350
Median daily rate % change year-on-year
+6.66% +7.14%
UK excluding London median daily rate £411 £388 £375
% change year-on-year
+6.12% +3.33%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £43.00 £42.50 £45.00
% change year-on-year
+1.17% -5.55%
TDD
Cheshire

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

Processes & Methodologies Category
Chester
Contract IT job ads with a match in the
Processes & Methodologies category
155 207 212
As % of all contract IT jobs located in Chester 80.31% 85.54% 86.53%
Number of daily rates quoted 126 144 67
Median daily rate £406 £401 £350
Median daily rate % change year-on-year
+1.43% +14.42%
90% offered a daily rate of more than £297 £320 £222
10% offered a daily rate of more than £475 £500 £420
UK excluding London median daily rate £400 £388 £375
% change year-on-year
+3.22% +3.33%
Number of hourly rates quoted 8 12 29
Median hourly rate £24.25 £35.00 £35.00
Median hourly rate % change year-on-year
-30.71% -
90% offered a hourly rate of more than £16.30 £19.32 £31.50
10% offered a hourly rate of more than £34.25 £55.00 £45.00
UK excluding London median hourly rate £36.00 £30.00 £30.50
% change year-on-year
+20.00% -1.63%

TDD
Jobs Demand Trend in Chester

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

TDD Jobs Demand Trend in Chester

TDD
Daily Rate Trend in Chester

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

TDD Daily Rate Trend in Chester

TDD
Top 30 Related IT Skills in Chester

For the 6 months to 6 May 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 Chester region with a requirement for TDD.

1 15 (71.43%) Java
2 14 (66.67%) MVC
2 14 (66.67%) Agile Software Development
3 11 (52.38%) SQL
4 9 (42.86%) Oracle
4 9 (42.86%) XML
4 9 (42.86%) E-Commerce
4 9 (42.86%) Spring
4 9 (42.86%) Selenium
4 9 (42.86%) Jenkins
5 8 (38.10%) Continuous Integration
5 8 (38.10%) Software Engineering
5 8 (38.10%) WebSphere
5 8 (38.10%) XSLT
5 8 (38.10%) J2EE
5 8 (38.10%) JavaScript
5 8 (38.10%) C#
6 7 (33.33%) Finance
6 7 (33.33%) CSS
6 7 (33.33%) JDBC
6 7 (33.33%) IBM
6 7 (33.33%) JIRA
6 7 (33.33%) Cucumber
6 7 (33.33%) System Integration Testing
6 7 (33.33%) Integration Testing
7 6 (28.57%) Spring MVC
7 6 (28.57%) jQuery
7 6 (28.57%) .NET
7 6 (28.57%) SQL Server
8 5 (23.81%) Banking

TDD
Top Related IT Skills in Chester 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 8 (38.10%) WebSphere
2 4 (19.05%) IBM HTTP Server
2 4 (19.05%) Oracle HTTP Server
3 3 (14.29%) WebSphere Application Server
4 1 (4.76%) Tomcat
Cloud Services
1 1 (4.76%) Amazon AWS
Communications & Networking
1 4 (19.05%) HTTP
1 4 (19.05%) Internet
2 1 (4.76%) Network Security
Database & Business Intelligence
1 6 (28.57%) SQL Server
2 4 (19.05%) Oracle Database
3 3 (14.29%) MongoDB
3 3 (14.29%) Redis
4 2 (9.52%) Apache Cassandra
5 1 (4.76%) MySQL
Development Applications
1 9 (42.86%) Jenkins
1 9 (42.86%) Selenium
2 7 (33.33%) Cucumber
2 7 (33.33%) JIRA
3 5 (23.81%) JUnit
3 5 (23.81%) Maven
4 4 (19.05%) Checkstyle
4 4 (19.05%) FindBugs
4 4 (19.05%) Mockito
4 4 (19.05%) SonarQube
5 3 (14.29%) Subversion
6 2 (9.52%) Hudson
General
1 7 (33.33%) Finance
2 5 (23.81%) Banking
3 1 (4.76%) Investment Banking
Job Titles
1 19 (90.48%) Developer
2 12 (57.14%) Java Developer
3 8 (38.10%) Senior Developer
4 6 (28.57%) .NET Developer
4 6 (28.57%) ASP.NET MVC Developer
4 6 (28.57%) C# .NET Developer
4 6 (28.57%) C# Developer
4 6 (28.57%) SQL Developer
5 5 (23.81%) Senior SQL Developer
6 4 (19.05%) Senior .NET Developer
6 4 (19.05%) Senior C# .NET Developer
6 4 (19.05%) Senior C# Developer
6 4 (19.05%) Senior SQL Server Developer
6 4 (19.05%) SQL Server Developer
7 3 (14.29%) J2EE Developer
7 3 (14.29%) Java/J2EE Developer
7 3 (14.29%) Senior Java Developer
8 2 (9.52%) Agile .NET Developer
8 2 (9.52%) Agile C# Developer
8 2 (9.52%) XML Developer
Libraries, Frameworks & Software Standards
1 9 (42.86%) Spring
1 9 (42.86%) XML
2 8 (38.10%) J2EE
2 8 (38.10%) XSLT
3 7 (33.33%) CSS
3 7 (33.33%) JDBC
4 6 (28.57%) .NET
4 6 (28.57%) jQuery
4 6 (28.57%) Spring MVC
5 5 (23.81%) HTML
5 5 (23.81%) JSP
5 5 (23.81%) Servlets
5 5 (23.81%) Web Services
6 4 (19.05%) Java EE
6 4 (19.05%) Spring Security
6 4 (19.05%) WCF
7 3 (14.29%) JAXB
7 3 (14.29%) JAX-WS
7 3 (14.29%) JSON
7 3 (14.29%) WSDL
Miscellaneous
1 4 (19.05%) N-Tier
1 4 (19.05%) Online Banking
2 2 (9.52%) Mobile App
3 1 (4.76%) Digital Media
3 1 (4.76%) Foreign Exchange (FX)
3 1 (4.76%) Wiki
Processes & Methodologies
1 14 (66.67%) Agile Software Development
1 14 (66.67%) MVC
2 9 (42.86%) E-Commerce
3 8 (38.10%) Continuous Integration
3 8 (38.10%) Software Engineering
4 7 (33.33%) Integration Testing
4 7 (33.33%) System Integration Testing
5 4 (19.05%) OOP
5 4 (19.05%) User Acceptance Testing
5 4 (19.05%) Web Application Development
6 3 (14.29%) AOP
6 3 (14.29%) Extreme Programming
6 3 (14.29%) Kanban
6 3 (14.29%) Pair Programming
6 3 (14.29%) Waterfall
6 3 (14.29%) Web Development
7 2 (9.52%) Enterprise Architecture
7 2 (9.52%) Front End Development
8 1 (4.76%) Memory Management
8 1 (4.76%) Microservices
Programming Languages
1 15 (71.43%) Java
2 11 (52.38%) SQL
3 8 (38.10%) C#
3 8 (38.10%) JavaScript
4 4 (19.05%) PL/SQL
5 2 (9.52%) T-SQL
6 1 (4.76%) C++
6 1 (4.76%) PHP
Qualifications
1 4 (19.05%) Degree
2 1 (4.76%) SC Cleared
2 1 (4.76%) Security Cleared
Vendors
1 9 (42.86%) Oracle
2 7 (33.33%) IBM
3 4 (19.05%) Perforce
4 1 (4.76%) ATG
4 1 (4.76%) hybris