The table below looks at the statistics for TDD skills in IT contracts advertised for the Cambridge region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 29 September 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
29 Sep 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 16 28 31
Rank change year-on-year
+12 +3
Contract jobs citing TDD 20 29 20
As % of all contract IT jobs located in Cambridge 6.56% 5.99% 4.58%
As % of the Processes & Methodologies category 8.00% 7.46% 6.45%
Number of daily rates quoted 8 22 15
Median daily rate £394 £401 £425
Median daily rate % change year-on-year
-1.86% -5.58%
90% offered a daily rate of more than £350 £341 £333
10% offered a daily rate of more than £465 £495 £500
UK excluding London median daily rate £425 £390 £375
% change year-on-year
+8.97% +4.00%
Number of hourly rates quoted 3 1 0
Median hourly rate £40.00 £45.00 -
Median hourly rate % change year-on-year
-11.11% -
UK excluding London median hourly rate £41.25 £37.45 £36.25
% change year-on-year
+10.14% +3.31%
TDD
Cambridgeshire

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

Processes & Methodologies Category
Cambridge
Contract IT job ads with a match in the
Processes & Methodologies category
250 389 310
As % of all contract IT jobs located in Cambridge 81.97% 80.37% 70.94%
Number of daily rates quoted 124 250 190
Median daily rate £425 £375 £375
Median daily rate % change year-on-year
+13.33% -
90% offered a daily rate of more than £325 £275 £270
10% offered a daily rate of more than £550 £540 £500
UK excluding London median daily rate £400 £400 £375
% change year-on-year
- +6.66%
Number of hourly rates quoted 30 14 28
Median hourly rate £28.00 £47.50 £31.88
Median hourly rate % change year-on-year
-41.05% +49.01%
90% offered a hourly rate of more than £14.65 £14.00 £21.00
10% offered a hourly rate of more than £42.50 £65.00 £60.00
UK excluding London median hourly rate £32.66 £34.00 £26.00
% change year-on-year
-3.95% +30.76%

TDD
Jobs Demand Trend in Cambridge

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

TDD Jobs Demand Trend in Cambridge

TDD
Daily Rate Trend in Cambridge

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

TDD Daily Rate Trend in Cambridge

TDD
Daily Rate Histogram in Cambridge

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Cambridge region over the 3 months to 29 September 2016.

TDD Daily Rate Histogram in Cambridge

TDD
Hourly Rate Trend in Cambridge

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

TDD Hourly Rate Trend in Cambridge

TDD
Top 30 Related IT Skills in Cambridge

For the 6 months to 29 September 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 Cambridge region with a requirement for TDD.

1 30 (78.95%) Agile Software Development
2 18 (47.37%) Java
2 18 (47.37%) JavaScript
3 14 (36.84%) SQL
4 13 (34.21%) Spring
4 13 (34.21%) Continuous Integration
5 12 (31.58%) HTML
6 11 (28.95%) OO
6 11 (28.95%) MVC
6 11 (28.95%) HTML5
7 10 (26.32%) REST
7 10 (26.32%) Scrum
8 9 (23.68%) C
8 9 (23.68%) C#
8 9 (23.68%) BDD
8 9 (23.68%) Open Source
9 8 (21.05%) Git (software)
9 8 (21.05%) CSS
9 8 (21.05%) AngularJS
10 7 (18.42%) Analytics
10 7 (18.42%) Relational Database
10 7 (18.42%) Visual Analytics
10 7 (18.42%) Oracle
10 7 (18.42%) .NET
10 7 (18.42%) Linux
10 7 (18.42%) Degree
11 6 (15.79%) jQuery
11 6 (15.79%) Software Engineering
11 6 (15.79%) JUnit
11 6 (15.79%) Analytical Skills

TDD
Top Related IT Skills in Cambridge 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 5 (13.16%) Tomcat
2 1 (2.63%) Cloud Foundry
2 1 (2.63%) CMS
2 1 (2.63%) OpenStack
Applications
1 1 (2.63%) Adobe Illustrator
1 1 (2.63%) MS Excel
1 1 (2.63%) OmniGraffle
1 1 (2.63%) Photoshop
Business Applications
1 3 (7.89%) Payment Gateway
2 1 (2.63%) Dynamics CRM
2 1 (2.63%) SDL Web 8
Cloud Services
1 5 (13.16%) GitHub
1 5 (13.16%) Microsoft Azure
2 2 (5.26%) Amazon AWS
3 1 (2.63%) Amazon EC2
3 1 (2.63%) Google Cloud Platform
Communications & Networking
1 4 (10.53%) Wireless
2 3 (7.89%) Wi-Fi
3 2 (5.26%) AMQP
4 1 (2.63%) TCP/IP
Database & Business Intelligence
1 7 (18.42%) Relational Database
2 4 (10.53%) MongoDB
2 4 (10.53%) NoSQL
2 4 (10.53%) PostgreSQL
3 3 (7.89%) Oracle Database
4 2 (5.26%) SQL Server
5 1 (2.63%) RDBMS
5 1 (2.63%) SQL Server Reporting Services
Development Applications
1 8 (21.05%) Git (software)
2 6 (15.79%) JUnit
3 5 (13.16%) Atlassian Bamboo
3 5 (13.16%) Mercurial
4 4 (10.53%) Jenkins
4 4 (10.53%) Mockito
5 3 (7.89%) IntelliJ
5 3 (7.89%) Maven
5 3 (7.89%) WebStorm
6 2 (5.26%) gulp
6 2 (5.26%) JMeter
7 1 (2.63%) Bower
7 1 (2.63%) Cucumber
7 1 (2.63%) Grunt
7 1 (2.63%) Jasmine
7 1 (2.63%) Mocha
7 1 (2.63%) Selenium
7 1 (2.63%) Subversion
7 1 (2.63%) Team Foundation Server
7 1 (2.63%) Visual Studio
General
1 5 (13.16%) Pharmaceutical
2 3 (7.89%) Games
3 1 (2.63%) Swedish Language
Job Titles
1 32 (84.21%) Developer
2 13 (34.21%) Java Developer
3 7 (18.42%) Software Developer
4 6 (15.79%) Senior Developer
5 5 (13.16%) JavaScript Developer
5 5 (13.16%) Senior Software Developer
6 4 (10.53%) Angular Developer
6 4 (10.53%) Lead Developer
7 3 (7.89%) C# Developer
7 3 (7.89%) C++ Developer
7 3 (7.89%) Software Engineer
8 2 (5.26%) .NET Developer
8 2 (5.26%) Agile Developer
8 2 (5.26%) Agile Java Developer
8 2 (5.26%) Full Stack Developer
8 2 (5.26%) Lead Java Developer
8 2 (5.26%) Node.js Developer
8 2 (5.26%) Senior Software Engineer
8 2 (5.26%) Technical Developer
8 2 (5.26%) Technical Leader
Libraries, Frameworks & Software Standards
1 13 (34.21%) Spring
2 12 (31.58%) HTML
3 11 (28.95%) HTML5
4 10 (26.32%) REST
5 8 (21.05%) AngularJS
5 8 (21.05%) CSS
6 7 (18.42%) .NET
7 6 (15.79%) jQuery
8 5 (13.16%) ASP.NET
8 5 (13.16%) Spring Boot
9 4 (10.53%) Angular 2
9 4 (10.53%) Hibernate
9 4 (10.53%) JPA
9 4 (10.53%) Node.js
10 3 (7.89%) ASP.NET MVC
10 3 (7.89%) JSON
10 3 (7.89%) RESTful
10 3 (7.89%) XML
10 3 (7.89%) XML Schema
11 2 (5.26%) RabbitMQ
Miscellaneous
1 6 (15.79%) Analytical Skills
2 5 (13.16%) Biology
2 5 (13.16%) Informatics
3 3 (7.89%) Oculus Rift
3 3 (7.89%) PlayStation
4 2 (5.26%) N-Tier
5 1 (2.63%) Graphic Design
5 1 (2.63%) Mobile App
5 1 (2.63%) User Experience
Operating Systems
1 7 (18.42%) Linux
2 5 (13.16%) Unix
3 1 (2.63%) Android
3 1 (2.63%) Windows
Processes & Methodologies
1 30 (78.95%) Agile Software Development
2 13 (34.21%) Continuous Integration
3 11 (28.95%) MVC
3 11 (28.95%) OO
4 10 (26.32%) Scrum
5 9 (23.68%) BDD
5 9 (23.68%) Open Source
6 7 (18.42%) Analytics
6 7 (18.42%) Visual Analytics
7 6 (15.79%) Software Engineering
8 5 (13.16%) DevOps
8 5 (13.16%) Open Source Development
9 4 (10.53%) API Design
9 4 (10.53%) BPMN
9 4 (10.53%) Domain-Driven Design
9 4 (10.53%) Microservices
10 3 (7.89%) API Development
10 3 (7.89%) Information Security
10 3 (7.89%) Service Design
10 3 (7.89%) Unit Testing
Programming Languages
1 18 (47.37%) Java
1 18 (47.37%) JavaScript
2 14 (36.84%) SQL
3 9 (23.68%) C
3 9 (23.68%) C#
4 5 (13.16%) Perl
4 5 (13.16%) Python
5 4 (10.53%) TypeScript
6 3 (7.89%) C++
6 3 (7.89%) Groovy
6 3 (7.89%) Scala
7 1 (2.63%) Embedded C
7 1 (2.63%) ES6
7 1 (2.63%) PHP
Qualifications
1 7 (18.42%) Degree
2 1 (2.63%) MCITP
2 1 (2.63%) Microsoft Certification
Quality Assurance & Compliance
1 1 (2.63%) QA
System Software
1 1 (2.63%) Docker
Vendors
1 7 (18.42%) Oracle
2 2 (5.26%) Microsoft
3 1 (2.63%) CheckPoint
3 1 (2.63%) Google