The table below looks at the statistics for TDD skills in IT contracts advertised for the Croydon region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 24 July 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
24 Jul 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 14 22 13
Rank change year-on-year
+8 -9
Contract jobs citing TDD 32 8 4
As % of all contract IT jobs located in Croydon 11.76% 5.80% 4.82%
As % of the Processes & Methodologies category 13.45% 6.35% 7.02%
Number of daily rates quoted 25 6 3
Median daily rate £450 £444 £700
Median daily rate % change year-on-year
+1.40% -36.60%
UK excluding London median daily rate £420 £375 £375
% change year-on-year
+12.00% -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £40.00 £71.00
% change year-on-year
- -43.66%
TDD
London

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

Processes & Methodologies Category
Croydon
Contract IT job ads with a match in the
Processes & Methodologies category
238 126 57
As % of all contract IT jobs located in Croydon 87.50% 91.30% 68.67%
Number of daily rates quoted 153 71 46
Median daily rate £418 £425 £388
Median daily rate % change year-on-year
-1.76% +9.67%
90% offered a daily rate of more than £311 £257 £250
10% offered a daily rate of more than £550 £525 £700
UK excluding London median daily rate £400 £388 £375
% change year-on-year
+3.22% +3.33%
Number of hourly rates quoted 7 3 2
Median hourly rate £22.00 £27.78 £17.00
Median hourly rate % change year-on-year
-20.80% +63.41%
UK excluding London median hourly rate £28.63 £30.50 £26.98
% change year-on-year
-6.14% +13.06%

TDD
Jobs Demand Trend in Croydon

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

TDD Jobs Demand Trend in Croydon

TDD
Daily Rate Trend in Croydon

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

TDD Daily Rate Trend in Croydon

TDD
Daily Rate Histogram in Croydon

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Croydon region over the 3 months to 24 July 2016.

TDD Daily Rate Histogram in Croydon

TDD
Top 30 Related IT Skills in Croydon

For the 6 months to 24 July 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 Croydon region with a requirement for TDD.

1 46 (93.88%) Agile Software Development
2 27 (55.10%) Scrum
3 26 (53.06%) BDD
4 23 (46.94%) Java
5 18 (36.73%) Security Cleared
6 17 (34.69%) Git (software)
7 16 (32.65%) Continuous Integration
7 16 (32.65%) SDLC
8 15 (30.61%) JavaScript
9 14 (28.57%) HTML
9 14 (28.57%) Mentoring
10 12 (24.49%) CSS
11 11 (22.45%) Analytical Skills
11 11 (22.45%) User Stories
12 10 (20.41%) GitHub
12 10 (20.41%) AngularJS
12 10 (20.41%) PostgreSQL
13 9 (18.37%) OO
13 9 (18.37%) SC Cleared
14 8 (16.33%) Data Integration
14 8 (16.33%) Spring
14 8 (16.33%) Project Management
14 8 (16.33%) Agile Project Management
14 8 (16.33%) Enterprise Software
14 8 (16.33%) Front End Development
15 7 (14.29%) API Development
15 7 (14.29%) Node.js
15 7 (14.29%) HTML5
16 6 (12.24%) REST
16 6 (12.24%) RESTful

TDD
Top Related IT Skills in Croydon 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 6 (12.24%) Tomcat
2 3 (6.12%) Elasticsearch
2 3 (6.12%) JBoss
3 2 (4.08%) Mule
4 1 (2.04%) Apache
4 1 (2.04%) WildFly
Cloud Services
1 10 (20.41%) GitHub
2 2 (4.08%) Amazon AWS
2 2 (4.08%) Amazon EC2
3 1 (2.04%) Microsoft Azure
Database & Business Intelligence
1 10 (20.41%) PostgreSQL
2 5 (10.20%) MySQL
3 4 (8.16%) SQL Server
4 2 (4.08%) MongoDB
4 2 (4.08%) NoSQL
5 1 (2.04%) Azure SQL Database
5 1 (2.04%) QlikView
5 1 (2.04%) Relational Database
Development Applications
1 17 (34.69%) Git (software)
2 6 (12.24%) JIRA
3 5 (10.20%) Grunt
4 4 (8.16%) JUnit
5 2 (4.08%) Cucumber
5 2 (4.08%) DbUnit
5 2 (4.08%) Jenkins
5 2 (4.08%) jMock
5 2 (4.08%) Maven
5 2 (4.08%) Mockito
5 2 (4.08%) SonarQube
6 1 (2.04%) Ant
6 1 (2.04%) Gradle
6 1 (2.04%) Jasmine
6 1 (2.04%) MSBuild
6 1 (2.04%) NUnit
6 1 (2.04%) Subversion
6 1 (2.04%) Visual Studio
General
1 2 (4.08%) Finance
1 2 (4.08%) Games
1 2 (4.08%) Telecoms
Job Titles
1 29 (59.18%) Developer
2 13 (26.53%) Java Developer
3 7 (14.29%) Senior Developer
4 6 (12.24%) Architect
4 6 (12.24%) Senior Java Developer
4 6 (12.24%) Technical Architect
5 5 (10.20%) Web Developer
6 4 (8.16%) Agile Developer
6 4 (8.16%) Agile Java Developer
6 4 (8.16%) Front End Developer (Client-Side Developer)
6 4 (8.16%) Front End Web Developer (Client-Side Developer)
6 4 (8.16%) JavaScript Developer
6 4 (8.16%) Node.js Developer
7 3 (6.12%) .NET Developer
7 3 (6.12%) ASP.NET MVC Developer
7 3 (6.12%) Scala Developer
7 3 (6.12%) Technical Leader
8 2 (4.08%) ASP.NET Developer
8 2 (4.08%) C# Developer
8 2 (4.08%) Delivery Manager
Libraries, Frameworks & Software Standards
1 14 (28.57%) HTML
2 12 (24.49%) CSS
3 10 (20.41%) AngularJS
4 8 (16.33%) Spring
5 7 (14.29%) HTML5
5 7 (14.29%) Node.js
6 6 (12.24%) jQuery
6 6 (12.24%) REST
6 6 (12.24%) RESTful
6 6 (12.24%) Web Services
7 5 (10.20%) Apache Camel
7 5 (10.20%) Sass
8 4 (8.16%) .NET
8 4 (8.16%) ActiveMQ
8 4 (8.16%) ASP.NET
8 4 (8.16%) ASP.NET MVC
8 4 (8.16%) J2EE
8 4 (8.16%) SOAP
8 4 (8.16%) Twitter Bootstrap
8 4 (8.16%) XML
Miscellaneous
1 11 (22.45%) Analytical Skills
2 8 (16.33%) Data Integration
2 8 (16.33%) Enterprise Software
3 3 (6.12%) Embedded Systems
3 3 (6.12%) User Experience
4 2 (4.08%) Minimum Viable Product
4 2 (4.08%) Mobile App
Operating Systems
1 4 (8.16%) Linux
2 1 (2.04%) Windows
Processes & Methodologies
1 46 (93.88%) Agile Software Development
2 27 (55.10%) Scrum
3 26 (53.06%) BDD
4 16 (32.65%) Continuous Integration
4 16 (32.65%) SDLC
5 14 (28.57%) Mentoring
6 11 (22.45%) User Stories
7 9 (18.37%) OO
8 8 (16.33%) Agile Project Management
8 8 (16.33%) Front End Development
8 8 (16.33%) Project Management
9 7 (14.29%) API Development
10 6 (12.24%) Continuous Delivery
10 6 (12.24%) Data Modelling
10 6 (12.24%) Information Security
10 6 (12.24%) Pair Programming
11 5 (10.20%) MVC
11 5 (10.20%) Stakeholder Management
11 5 (10.20%) Web Development
12 4 (8.16%) Multithreading
Programming Languages
1 23 (46.94%) Java
2 15 (30.61%) JavaScript
3 6 (12.24%) Scala
4 5 (10.20%) SQL
5 4 (8.16%) C#
6 3 (6.12%) C++
6 3 (6.12%) ES6
7 2 (4.08%) Bash Shell
7 2 (4.08%) PHP
7 2 (4.08%) Shell Script
8 1 (2.04%) Go
8 1 (2.04%) Groovy
8 1 (2.04%) PowerShell
8 1 (2.04%) T-SQL
8 1 (2.04%) TypeScript
Qualifications
1 18 (36.73%) Security Cleared
2 9 (18.37%) SC Cleared
3 3 (6.12%) BC Cleared
Quality Assurance & Compliance
1 5 (10.20%) QA
System Software
1 4 (8.16%) Docker
2 2 (4.08%) VMware Infrastructure
2 2 (4.08%) vSphere
Vendors
1 2 (4.08%) VMware
2 1 (2.04%) Microsoft
2 1 (2.04%) Zend