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 11 December 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
11 Dec 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 12 20 17
Rank change year-on-year
+8 -3
Contract jobs citing TDD 8 3 6
As % of all contract IT jobs located in Chester 7.48% 2.36% 4.96%
As % of the Processes & Methodologies category 9.20% 2.68% 5.94%
Number of daily rates quoted 8 3 4
Median daily rate £395 £425 £356
Median daily rate % change year-on-year
-7.05% +19.29%
90% offered a daily rate of more than £311 £385 £320
10% offered a daily rate of more than £427 £473 £375
UK excluding London median daily rate £425 £400 £375
% change year-on-year
+6.25% +6.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.76 £36.50 £38.25
% change year-on-year
+8.93% -4.57%
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
87 112 101
As % of all contract IT jobs located in Chester 81.31% 88.19% 83.47%
Number of daily rates quoted 79 88 45
Median daily rate £403 £475 £376
Median daily rate % change year-on-year
-15.26% +26.49%
90% offered a daily rate of more than £243 £356 £300
10% offered a daily rate of more than £520 £505 £500
UK excluding London median daily rate £413 £400 £387
% change year-on-year
+3.12% +3.35%
Number of hourly rates quoted 0 11 17
Median hourly rate - £22.50 £28.00
Median hourly rate % change year-on-year
- -19.64%
UK excluding London median hourly rate £30.00 £33.00 £25.00
% change year-on-year
-9.09% +32.00%

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 11 December 2016.

TDD Daily Rate Histogram in Chester

TDD
Top 30 Related IT Skills in Chester

For the 6 months to 11 December 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 14 (77.78%) Java
1 14 (77.78%) Agile Software Development
2 8 (44.44%) OO
3 7 (38.89%) J2EE
3 7 (38.89%) Continuous Integration
4 6 (33.33%) RESTful
4 6 (33.33%) Web Services
4 6 (33.33%) XML
4 6 (33.33%) E-Commerce
4 6 (33.33%) Scrum
4 6 (33.33%) JSON
5 5 (27.78%) Spring
5 5 (27.78%) HTML
5 5 (27.78%) CSS
5 5 (27.78%) JavaScript
5 5 (27.78%) Git (software)
5 5 (27.78%) MongoDB
6 4 (22.22%) Waterfall
6 4 (22.22%) REST
6 4 (22.22%) DevOps
6 4 (22.22%) BDD
6 4 (22.22%) JBoss
6 4 (22.22%) Software Engineering
7 3 (16.67%) WebSphere
7 3 (16.67%) Degree
7 3 (16.67%) Tomcat
7 3 (16.67%) SOAP
7 3 (16.67%) C#
7 3 (16.67%) SQL
7 3 (16.67%) SDLC

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 4 (22.22%) JBoss
2 3 (16.67%) Tomcat
2 3 (16.67%) WebSphere
3 2 (11.11%) GlassFish
3 2 (11.11%) WebLogic
4 1 (5.56%) Oracle SOA Suite
4 1 (5.56%) WebSphere Application Server
Cloud Services
1 2 (11.11%) Amazon AWS
Communications & Networking
1 2 (11.11%) Internet
Database & Business Intelligence
1 5 (27.78%) MongoDB
2 2 (11.11%) Apache Cassandra
2 2 (11.11%) MySQL
2 2 (11.11%) NoSQL
3 1 (5.56%) Neo4j
3 1 (5.56%) Oracle Database
3 1 (5.56%) Redis
3 1 (5.56%) Relational Database
Development Applications
1 5 (27.78%) Git (software)
2 3 (16.67%) Selenium
3 2 (11.11%) Cucumber
3 2 (11.11%) Jenkins
3 2 (11.11%) JIRA
3 2 (11.11%) Subversion
4 1 (5.56%) Ant
4 1 (5.56%) Gradle
4 1 (5.56%) Jasmine
4 1 (5.56%) JUnit
4 1 (5.56%) LoadRunner
4 1 (5.56%) Maven
4 1 (5.56%) PHPUnit
4 1 (5.56%) QUnit
General
1 2 (11.11%) Finance
2 1 (5.56%) Banking
Job Titles
1 10 (55.56%) Developer
2 6 (33.33%) Java Developer
3 3 (16.67%) Front End Developer (Client-Side Developer)
3 3 (16.67%) JavaScript Developer
3 3 (16.67%) Software Engineer
4 2 (11.11%) Agile Developer
4 2 (11.11%) Angular Developer
4 2 (11.11%) Technical Leader
5 1 (5.56%) Analyst
5 1 (5.56%) C# Software Engineer
5 1 (5.56%) C++ Software Engineer
5 1 (5.56%) MongoDB Developer
5 1 (5.56%) PHP Developer
5 1 (5.56%) PHP Web Developer
5 1 (5.56%) Senior C# Software Engineer
5 1 (5.56%) Senior C++ Software Engineer
5 1 (5.56%) Senior Data Warehouse Specialist
5 1 (5.56%) Senior Java Developer
5 1 (5.56%) Senior Software Engineer
5 1 (5.56%) SOA Specialist
Libraries, Frameworks & Software Standards
1 7 (38.89%) J2EE
2 6 (33.33%) JSON
2 6 (33.33%) RESTful
2 6 (33.33%) Web Services
2 6 (33.33%) XML
3 5 (27.78%) CSS
3 5 (27.78%) HTML
3 5 (27.78%) Spring
4 4 (22.22%) REST
5 3 (16.67%) AngularJS
5 3 (16.67%) CSS3
5 3 (16.67%) HTML5
5 3 (16.67%) SOAP
6 2 (11.11%) jQuery
6 2 (11.11%) JSTL
6 2 (11.11%) Node.js
6 2 (11.11%) Struts
7 1 (5.56%) OSGi
7 1 (5.56%) POJO
7 1 (5.56%) Sass
Miscellaneous
1 3 (16.67%) Computer Science
2 2 (11.11%) Mathematics
2 2 (11.11%) User Experience
3 1 (5.56%) Analytical Skills
3 1 (5.56%) Data Structures
3 1 (5.56%) Enterprise Software
3 1 (5.56%) RIA
3 1 (5.56%) Wiki
Processes & Methodologies
1 14 (77.78%) Agile Software Development
2 8 (44.44%) OO
3 7 (38.89%) Continuous Integration
4 6 (33.33%) E-Commerce
4 6 (33.33%) Scrum
5 4 (22.22%) BDD
5 4 (22.22%) DevOps
5 4 (22.22%) Software Engineering
5 4 (22.22%) Waterfall
6 3 (16.67%) Front End Development
6 3 (16.67%) Microservices
6 3 (16.67%) Open Source
6 3 (16.67%) SDLC
7 2 (11.11%) High Availability
7 2 (11.11%) Kanban
7 2 (11.11%) MVC
7 2 (11.11%) Test Scripting
7 2 (11.11%) User Acceptance Testing
7 2 (11.11%) Validation
7 2 (11.11%) Web Development
Programming Languages
1 14 (77.78%) Java
2 5 (27.78%) JavaScript
3 3 (16.67%) C#
3 3 (16.67%) SQL
4 2 (11.11%) Groovy
5 1 (5.56%) C++
5 1 (5.56%) PHP
5 1 (5.56%) PL/SQL
5 1 (5.56%) T-SQL
Qualifications
1 3 (16.67%) Degree
2 1 (5.56%) SC Cleared
2 1 (5.56%) Security Cleared
Quality Assurance & Compliance
1 2 (11.11%) QA
Vendors
1 2 (11.11%) hybris
2 1 (5.56%) IBM
2 1 (5.56%) Oracle
2 1 (5.56%) Telerik