The table below looks at the statistics for TDD skills in IT contracts advertised for the Slough region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 2 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
2 Dec 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 15 26 14
Rank change year-on-year
+11 -12
Contract jobs citing TDD 9 4 25
As % of all contract IT jobs located in Slough 6.43% 1.79% 7.72%
As % of the Processes & Methodologies category 8.49% 2.27% 9.58%
Number of daily rates quoted 7 2 20
Median daily rate £318 £388 £317
Median daily rate % change year-on-year
-17.93% +22.43%
90% offered a daily rate of more than £299 £378 £308
10% offered a daily rate of more than £320 £398 £443
UK excluding London median daily rate £425 £388 £375
% change year-on-year
+9.67% +3.33%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.50 £36.98 £38.25
% change year-on-year
+14.94% -3.33%
TDD
Berkshire

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

Processes & Methodologies Category
Slough
Contract IT job ads with a match in the
Processes & Methodologies category
106 176 261
As % of all contract IT jobs located in Slough 75.71% 78.92% 80.56%
Number of daily rates quoted 71 121 162
Median daily rate £363 £395 £330
Median daily rate % change year-on-year
-8.22% +19.69%
90% offered a daily rate of more than £289 £295 £260
10% offered a daily rate of more than £525 £550 £450
UK excluding London median daily rate £413 £400 £385
% change year-on-year
+3.12% +3.89%
Number of hourly rates quoted 3 4 6
Median hourly rate £38.50 £42.50 £21.00
Median hourly rate % change year-on-year
-9.41% +102.38%
UK excluding London median hourly rate £30.00 £34.95 £25.00
% change year-on-year
-14.16% +39.80%

TDD
Jobs Demand Trend in Slough

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

TDD Jobs Demand Trend in Slough

TDD
Daily Rate Trend in Slough

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

TDD Daily Rate Trend in Slough

TDD
Top 30 Related IT Skills in Slough

For the 6 months to 2 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 Slough region with a requirement for TDD.

1 11 (100.00%) Agile Software Development
2 9 (81.82%) Extreme Programming
2 9 (81.82%) Subversion
2 9 (81.82%) JIRA
2 9 (81.82%) Continuous Integration
2 9 (81.82%) HTML
2 9 (81.82%) Java
2 9 (81.82%) JavaScript
2 9 (81.82%) Tomcat
2 9 (81.82%) Open Source
2 9 (81.82%) MongoDB
2 9 (81.82%) Web Application Development
2 9 (81.82%) GitHub
2 9 (81.82%) Jenkins
3 8 (72.73%) Gradle
3 8 (72.73%) Functional Testing
3 8 (72.73%) Scala
3 8 (72.73%) Groovy
3 8 (72.73%) Servlets
3 8 (72.73%) E-Commerce
3 8 (72.73%) XML
3 8 (72.73%) Velocity
3 8 (72.73%) Spring
3 8 (72.73%) Pair Programming
4 7 (63.64%) Quality Management
4 7 (63.64%) J2EE
5 5 (45.45%) XSLT
5 5 (45.45%) Solaris
5 5 (45.45%) Eclipse
5 5 (45.45%) IntelliJ

TDD
Top Related IT Skills in Slough 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 (81.82%) Tomcat
2 5 (45.45%) Alfresco
2 5 (45.45%) Apache
2 5 (45.45%) Liferay
Cloud Services
1 9 (81.82%) GitHub
Database & Business Intelligence
1 9 (81.82%) MongoDB
Development Applications
1 9 (81.82%) Jenkins
1 9 (81.82%) JIRA
1 9 (81.82%) Subversion
2 8 (72.73%) Gradle
3 5 (45.45%) Eclipse
3 5 (45.45%) IntelliJ
4 1 (9.09%) JIRA Agile
Job Titles
1 10 (90.91%) Developer
2 9 (81.82%) Java Developer
3 5 (45.45%) Agile Developer
3 5 (45.45%) Agile Java Developer
4 1 (9.09%) Front End Developer (Client-Side Developer)
4 1 (9.09%) Scrum Master
Libraries, Frameworks & Software Standards
1 9 (81.82%) HTML
2 8 (72.73%) Servlets
2 8 (72.73%) Spring
2 8 (72.73%) Velocity
2 8 (72.73%) XML
3 7 (63.64%) J2EE
4 5 (45.45%) JSR 168
4 5 (45.45%) Struts
4 5 (45.45%) XHTML
4 5 (45.45%) XSLT
5 4 (36.36%) REST
6 1 (9.09%) CSS
6 1 (9.09%) CSS3
6 1 (9.09%) HTML5
6 1 (9.09%) Meteor
6 1 (9.09%) OOCSS
Operating Systems
1 5 (45.45%) Solaris
2 1 (9.09%) Android
2 1 (9.09%) Apple iOS
Processes & Methodologies
1 11 (100.00%) Agile Software Development
2 9 (81.82%) Continuous Integration
2 9 (81.82%) Extreme Programming
2 9 (81.82%) Open Source
2 9 (81.82%) Web Application Development
3 8 (72.73%) E-Commerce
3 8 (72.73%) Functional Testing
3 8 (72.73%) Pair Programming
4 7 (63.64%) Quality Management
5 5 (45.45%) MVC
6 4 (36.36%) Microservices
7 3 (27.27%) Scrum
8 2 (18.18%) Kanban
9 1 (9.09%) BDD
9 1 (9.09%) BEM - Block Element Modifier
9 1 (9.09%) Continuous Improvement
9 1 (9.09%) Front End Development
9 1 (9.09%) OO
9 1 (9.09%) Project Management
9 1 (9.09%) SMACSS
Programming Languages
1 9 (81.82%) Java
1 9 (81.82%) JavaScript
2 8 (72.73%) Groovy
2 8 (72.73%) Scala
Qualifications
1 1 (9.09%) Degree
Vendors
1 5 (45.45%) GigaSpaces