The table below looks at the statistics for TDD skills in IT jobs advertised for the Croydon region. Included is a guide to the salaries offered in IT jobs that have cited TDD over the 3 months to 29 September 2016 with a comparison to the same period over the previous 2 years.

3 months to
29 Sep 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 30 40 22
Rank change year-on-year
+10 -18
Permanent jobs citing TDD 7 1 22
As % of all permanent IT jobs located in Croydon 3.47% 0.54% 9.09%
As % of the Processes & Methodologies category 4.17% 0.66% 11.52%
Number of salaries quoted 7 1 22
Median salary £45,000 £42,500 £52,500
Median salary % change year-on-year
+5.88% -19.04%
90% offered a salary of more than £43,600 £42,500 £46,600
10% offered a salary of more than £49,500 £42,500 £65,000
UK excluding London median salary £45,000 £42,500 £40,000
% change year-on-year
+5.88% +6.25%
TDD
London

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

Processes & Methodologies Category
Croydon
Permanent IT job ads with a match in the
Processes & Methodologies category
168 151 191
As % of all permanent IT jobs located in Croydon 83.17% 82.07% 78.93%
Number of salaries quoted 148 141 173
Median salary £57,500 £47,500 £46,500
Median salary % change year-on-year
+21.05% +2.15%
90% offered a salary of more than £42,000 £25,050 £29,000
10% offered a salary of more than £80,000 £65,000 £79,500
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year
- +5.88%

TDD
Jobs Demand Trend in Croydon

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

TDD Jobs Demand Trend in Croydon

TDD
Salary Trend in Croydon

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

TDD Salary Trend in Croydon

TDD
Top 30 Related IT Skills in Croydon

For the 6 months to 29 September 2016, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Croydon region with a requirement for TDD.

1 13 (76.47%) HTML
1 13 (76.47%) CSS
2 12 (70.59%) Agile Software Development
3 10 (58.82%) BDD
4 8 (47.06%) Node.js
5 7 (41.18%) Java
5 7 (41.18%) JavaScript
6 6 (35.29%) MVC
6 6 (35.29%) Penetration Testing
6 6 (35.29%) User Stories
6 6 (35.29%) Continuous Integration
6 6 (35.29%) Git (software)
6 6 (35.29%) Scala
7 5 (29.41%) WebDriver
7 5 (29.41%) Selenium
7 5 (29.41%) Performance Testing
7 5 (29.41%) Compatibility Testing
7 5 (29.41%) AngularJS
7 5 (29.41%) JIRA
7 5 (29.41%) .NET
7 5 (29.41%) ASP.NET
7 5 (29.41%) Mentoring
7 5 (29.41%) Coaching
7 5 (29.41%) Defect Management
8 4 (23.53%) C#
8 4 (23.53%) Web Services
8 4 (23.53%) Microsoft
8 4 (23.53%) Scrum
8 4 (23.53%) HTML5
9 3 (17.65%) Microsoft Azure

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 3 (17.65%) CMS
2 2 (11.76%) Drupal
2 2 (11.76%) JBoss
2 2 (11.76%) Tomcat
3 1 (5.88%) Alfresco
3 1 (5.88%) Apache
3 1 (5.88%) Confluence
3 1 (5.88%) Liferay
Applications
1 1 (5.88%) MS Excel
Cloud Services
1 3 (17.65%) Microsoft Azure
2 1 (5.88%) Amazon AWS
2 1 (5.88%) Amazon EC2
Communications & Networking
1 2 (11.76%) HTTP
2 1 (5.88%) DSL
2 1 (5.88%) OpenLDAP
Database & Business Intelligence
1 3 (17.65%) PostgreSQL
1 3 (17.65%) SQL Server
2 1 (5.88%) Azure SQL Database
2 1 (5.88%) CouchDB
2 1 (5.88%) MongoDB
2 1 (5.88%) MySQL
2 1 (5.88%) Neo4j
2 1 (5.88%) NoSQL
2 1 (5.88%) QlikView
2 1 (5.88%) RDBMS
2 1 (5.88%) Relational Database
Development Applications
1 6 (35.29%) Git (software)
2 5 (29.41%) JIRA
2 5 (29.41%) Selenium
2 5 (29.41%) WebDriver
3 3 (17.65%) DbUnit
3 3 (17.65%) Jenkins
3 3 (17.65%) jMock
3 3 (17.65%) JUnit
3 3 (17.65%) Mockito
3 3 (17.65%) NUnit
4 2 (11.76%) Grunt
4 2 (11.76%) gulp
4 2 (11.76%) Maven
4 2 (11.76%) SonarQube
5 1 (5.88%) Ant
5 1 (5.88%) Cucumber
5 1 (5.88%) Jasmine
5 1 (5.88%) Moq
5 1 (5.88%) MSBuild
5 1 (5.88%) Visual Studio
Job Titles
1 9 (52.94%) Developer
2 5 (29.41%) Analyst
3 4 (23.53%) .NET Developer
3 4 (23.53%) Agile Test Analyst
3 4 (23.53%) Digital Analyst
3 4 (23.53%) Selenium Test Analyst
3 4 (23.53%) Test Analyst
4 3 (17.65%) Java Developer
4 3 (17.65%) JavaScript Developer
5 2 (11.76%) C# .NET Developer
5 2 (11.76%) C# Developer
5 2 (11.76%) Digital Developer
5 2 (11.76%) Front End Developer (Client-Side Developer)
5 2 (11.76%) HTML CSS Developer
5 2 (11.76%) HTML Developer
5 2 (11.76%) Test Engineer
5 2 (11.76%) UX Developer
6 1 (5.88%) Agile Delivery Manager
6 1 (5.88%) Embedded Engineer
6 1 (5.88%) T-SQL Developer
Libraries, Frameworks & Software Standards
1 13 (76.47%) CSS
1 13 (76.47%) HTML
2 8 (47.06%) Node.js
3 5 (29.41%) .NET
3 5 (29.41%) AngularJS
3 5 (29.41%) ASP.NET
4 4 (23.53%) HTML5
4 4 (23.53%) Web Services
5 3 (17.65%) .NET Framework
5 3 (17.65%) Apache Camel
5 3 (17.65%) ASP.NET MVC
5 3 (17.65%) ASP.NET Web API
5 3 (17.65%) Backbone.js
5 3 (17.65%) J2EE
5 3 (17.65%) jQuery
5 3 (17.65%) PowerMock
5 3 (17.65%) SOAP
5 3 (17.65%) Spring
5 3 (17.65%) Twitter Bootstrap
6 2 (11.76%) React
Miscellaneous
1 2 (11.76%) User Experience
2 1 (5.88%) Fintech
2 1 (5.88%) Smartcard
Operating Systems
1 1 (5.88%) Linux
Processes & Methodologies
1 12 (70.59%) Agile Software Development
2 10 (58.82%) BDD
3 6 (35.29%) Continuous Integration
3 6 (35.29%) MVC
3 6 (35.29%) Penetration Testing
3 6 (35.29%) User Stories
4 5 (29.41%) Coaching
4 5 (29.41%) Compatibility Testing
4 5 (29.41%) Defect Management
4 5 (29.41%) Mentoring
4 5 (29.41%) Performance Testing
5 4 (23.53%) Scrum
6 3 (17.65%) Automated Testing
6 3 (17.65%) E-Commerce
6 3 (17.65%) Front End Development
6 3 (17.65%) OO
7 2 (11.76%) Case Management
7 2 (11.76%) Kanban
7 2 (11.76%) Migration
7 2 (11.76%) Wireframes
Programming Languages
1 7 (41.18%) Java
1 7 (41.18%) JavaScript
2 6 (35.29%) Scala
3 4 (23.53%) C#
4 2 (11.76%) Groovy
4 2 (11.76%) PHP
4 2 (11.76%) SQL
4 2 (11.76%) T-SQL
5 1 (5.88%) C
5 1 (5.88%) C++
5 1 (5.88%) Embedded C
5 1 (5.88%) Embedded C++
5 1 (5.88%) PowerShell
5 1 (5.88%) Python
5 1 (5.88%) Ruby
5 1 (5.88%) TypeScript
Qualifications
1 1 (5.88%) SC Cleared
1 1 (5.88%) Security Cleared
System Software
1 1 (5.88%) VMware Infrastructure
1 1 (5.88%) vSphere
Vendors
1 4 (23.53%) Microsoft
2 1 (5.88%) Oracle
2 1 (5.88%) VMware