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 26 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
26 May 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 19 25 17
Rank change year-on-year
+6 -8
Contract jobs citing TDD 16 11 20
As % of all contract IT jobs located in Chester 8.04% 4.56% 9.35%
As % of the Processes & Methodologies category 10.19% 5.24% 10.70%
Number of daily rates quoted 15 7 8
Median daily rate £388 £375 £350
Median daily rate % change year-on-year
+3.33% +7.14%
90% offered a daily rate of more than £325 £302 £347
10% offered a daily rate of more than £425 £405 £422
UK excluding London median daily rate £413 £380 £375
% change year-on-year
+8.55% +1.33%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.40 £42.50 £52.25
% change year-on-year
-0.24% -18.66%
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
157 210 187
As % of all contract IT jobs located in Chester 78.89% 87.14% 87.38%
Number of daily rates quoted 135 141 60
Median daily rate £413 £400 £340
Median daily rate % change year-on-year
+3.12% +17.64%
90% offered a daily rate of more than £290 £320 £230
10% offered a daily rate of more than £490 £475 £420
UK excluding London median daily rate £400 £385 £375
% change year-on-year
+3.89% +2.66%
Number of hourly rates quoted 4 10 18
Median hourly rate £20.78 £35.00 £35.00
Median hourly rate % change year-on-year
-40.62% -
UK excluding London median hourly rate £33.00 £30.00 £30.00
% change year-on-year
+10.00% -

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
Daily Rate Histogram in Chester

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Chester region over the 3 months to 26 May 2016.

TDD Daily Rate Histogram in Chester

TDD
Top 30 Related IT Skills in Chester

For the 6 months to 26 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 17 (73.91%) Java
2 16 (69.57%) Agile Software Development
3 14 (60.87%) MVC
4 13 (56.52%) SQL
5 11 (47.83%) Oracle
5 11 (47.83%) XML
6 10 (43.48%) E-Commerce
6 10 (43.48%) Spring
6 10 (43.48%) Selenium
6 10 (43.48%) Jenkins
7 9 (39.13%) WebSphere
7 9 (39.13%) Software Engineering
7 9 (39.13%) Continuous Integration
7 9 (39.13%) XSLT
7 9 (39.13%) J2EE
7 9 (39.13%) Finance
8 8 (34.78%) JavaScript
8 8 (34.78%) C#
8 8 (34.78%) JDBC
8 8 (34.78%) IBM
8 8 (34.78%) Integration Testing
8 8 (34.78%) JIRA
8 8 (34.78%) System Integration Testing
9 7 (30.43%) Cucumber
9 7 (30.43%) CSS
10 6 (26.09%) .NET
10 6 (26.09%) SQL Server
10 6 (26.09%) JUnit
10 6 (26.09%) PL/SQL
10 6 (26.09%) Web Services

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 9 (39.13%) WebSphere
2 4 (17.39%) IBM HTTP Server
2 4 (17.39%) Oracle HTTP Server
2 4 (17.39%) WebSphere Application Server
3 1 (4.35%) Tomcat
Cloud Services
1 1 (4.35%) Amazon AWS
Communications & Networking
1 4 (17.39%) HTTP
1 4 (17.39%) Internet
2 1 (4.35%) Network Security
Database & Business Intelligence
1 6 (26.09%) SQL Server
2 5 (21.74%) Oracle Database
3 3 (13.04%) MongoDB
3 3 (13.04%) Redis
4 2 (8.70%) Apache Cassandra
5 1 (4.35%) MySQL
Development Applications
1 10 (43.48%) Jenkins
1 10 (43.48%) Selenium
2 8 (34.78%) JIRA
3 7 (30.43%) Cucumber
4 6 (26.09%) JUnit
5 5 (21.74%) Maven
6 4 (17.39%) Checkstyle
6 4 (17.39%) FindBugs
6 4 (17.39%) Mockito
6 4 (17.39%) SonarQube
6 4 (17.39%) Subversion
7 2 (8.70%) Hudson
General
1 9 (39.13%) Finance
2 5 (21.74%) Banking
3 1 (4.35%) Investment Banking
Job Titles
1 20 (86.96%) Developer
2 13 (56.52%) Java Developer
3 8 (34.78%) Senior Developer
4 6 (26.09%) .NET Developer
4 6 (26.09%) ASP.NET MVC Developer
4 6 (26.09%) C# .NET Developer
4 6 (26.09%) C# Developer
4 6 (26.09%) SQL Developer
5 5 (21.74%) Senior SQL Developer
6 4 (17.39%) Senior .NET Developer
6 4 (17.39%) Senior C# .NET Developer
6 4 (17.39%) Senior C# Developer
6 4 (17.39%) Senior SQL Server Developer
6 4 (17.39%) SQL Server Developer
7 3 (13.04%) J2EE Developer
7 3 (13.04%) Java/J2EE Developer
7 3 (13.04%) Senior Java Developer
8 2 (8.70%) Agile .NET Developer
8 2 (8.70%) Agile C# Developer
8 2 (8.70%) XML Developer
Libraries, Frameworks & Software Standards
1 11 (47.83%) XML
2 10 (43.48%) Spring
3 9 (39.13%) J2EE
3 9 (39.13%) XSLT
4 8 (34.78%) JDBC
5 7 (30.43%) CSS
6 6 (26.09%) .NET
6 6 (26.09%) jQuery
6 6 (26.09%) Spring MVC
6 6 (26.09%) Web Services
7 5 (21.74%) HTML
7 5 (21.74%) JSP
7 5 (21.74%) Servlets
8 4 (17.39%) Java EE
8 4 (17.39%) JAXB
8 4 (17.39%) JAX-WS
8 4 (17.39%) SOAP
8 4 (17.39%) Spring Security
8 4 (17.39%) WCF
8 4 (17.39%) WSDL
Miscellaneous
1 4 (17.39%) N-Tier
1 4 (17.39%) Online Banking
2 2 (8.70%) Mobile App
3 1 (4.35%) Digital Media
3 1 (4.35%) Foreign Exchange (FX)
3 1 (4.35%) Wiki
Processes & Methodologies
1 16 (69.57%) Agile Software Development
2 14 (60.87%) MVC
3 10 (43.48%) E-Commerce
4 9 (39.13%) Continuous Integration
4 9 (39.13%) Software Engineering
5 8 (34.78%) Integration Testing
5 8 (34.78%) System Integration Testing
6 5 (21.74%) User Acceptance Testing
7 4 (17.39%) AOP
7 4 (17.39%) Extreme Programming
7 4 (17.39%) Kanban
7 4 (17.39%) OOP
7 4 (17.39%) Waterfall
7 4 (17.39%) Web Application Development
8 3 (13.04%) Pair Programming
8 3 (13.04%) Web Development
9 2 (8.70%) Enterprise Architecture
9 2 (8.70%) Front End Development
10 1 (4.35%) High Availability
10 1 (4.35%) Memory Management
Programming Languages
1 17 (73.91%) Java
2 13 (56.52%) SQL
3 8 (34.78%) C#
3 8 (34.78%) JavaScript
4 6 (26.09%) PL/SQL
5 2 (8.70%) T-SQL
6 1 (4.35%) C++
6 1 (4.35%) PHP
Qualifications
1 4 (17.39%) Degree
2 1 (4.35%) SC Cleared
2 1 (4.35%) Security Cleared
Vendors
1 11 (47.83%) Oracle
2 8 (34.78%) IBM
3 4 (17.39%) Perforce
4 1 (4.35%) ATG
4 1 (4.35%) hybris