The following table provides summary statistics for permanent job vacancies advertised in Ipswich with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 3 months to 26 May 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Suffolk / Ipswich
3 months to
26 May 2017
Same period 2016 Same period 2015
Rank 34 12 26
Rank change year-on-year -22 +14  
Permanent jobs citing TDD 2 45 50
As % of all permanent IT jobs advertised in Ipswich 1.03% 12.82% 10.37%
As % of the Processes & Methodologies category 1.09% 14.38% 12.17%
Number of salaries quoted 2 45 50
Median salary £52,500 £37,500 £40,000
Median salary % change year-on-year +40.00% -6.25%  
90% offered a salary of more than £38,500 £35,000 £25,000
10% offered a salary of more than £66,500 £55,000 £47,500
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year - +5.88%  

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Ipswich with a requirement for process and methodology skills.

Process & Methodology Skills
Ipswich
Permanent job vacancies with a requirement for process and methodology skills 183 313 411
As % of all permanent IT job vacancies advertised in Ipswich 93.85% 89.17% 85.27%
Number of salaries quoted 171 292 366
Median salary £42,500 £37,500 £40,000
Median salary % change year-on-year +13.33% -6.25%  
90% offered a salary of more than £31,800 £27,500 £26,000
10% offered a salary of more than £60,000 £50,000 £60,000
UK excluding London median salary £45,000 £45,000 £44,000
% change year-on-year - +2.27%  

TDD
Job Vacancy Trend in Ipswich

The job posting trend of jobs advertised in Ipswich citing TDD as a proportion of all permanent or contract IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for TDD in Ipswich

TDD
Salary Trend in Ipswich

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

Salary trend for TDD in Ipswich

TDD
Salary Histogram in Ipswich

The salary distribution of IT jobs citing TDD in Ipswich over the 3 months to 26 May 2017.

Salary histogram for TDD in Ipswich

For the 6 months to 26 May 2017, 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 Ipswich region with a requirement for TDD.

1 10 (71.43%) Agile Software Development
2 6 (42.86%) Java
3 5 (35.71%) C#
3 5 (35.71%) SQL Server
3 5 (35.71%) Java EE
4 4 (28.57%) Finance
4 4 (28.57%) HTML
4 4 (28.57%) .NET
4 4 (28.57%) JavaScript
4 4 (28.57%) Windows
4 4 (28.57%) AngularJS
4 4 (28.57%) Enterprise Software
5 3 (21.43%) SQL Server 2014
5 3 (21.43%) Unity DI Container
5 3 (21.43%) Facebook
5 3 (21.43%) Twitter
5 3 (21.43%) Dependency Injection
5 3 (21.43%) Inversion of Control
5 3 (21.43%) MSTest
5 3 (21.43%) Castle Windsor
5 3 (21.43%) Ninject
5 3 (21.43%) REST
5 3 (21.43%) Spring.NET
5 3 (21.43%) MVVM
5 3 (21.43%) Rhino Mocks
5 3 (21.43%) Moq
5 3 (21.43%) UML
5 3 (21.43%) E-Commerce
5 3 (21.43%) MVC
5 3 (21.43%) J2EE

TDD
Co-occurring IT Skills in Ipswich 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 1 (7.14%) Apache Pig
1 1 (7.14%) BizTalk Server
1 1 (7.14%) IIS
Database & Business Intelligence
1 5 (35.71%) SQL Server
2 3 (21.43%) SQL Server 2014
3 1 (7.14%) Amazon DynamoDB
3 1 (7.14%) Apache Hive
3 1 (7.14%) Big Data
3 1 (7.14%) Hadoop
3 1 (7.14%) MongoDB
3 1 (7.14%) Neo4j
3 1 (7.14%) NoSQL
Development Applications
1 3 (21.43%) Moq
1 3 (21.43%) MSTest
1 3 (21.43%) NUnit
1 3 (21.43%) Rhino Mocks
2 2 (14.29%) jMock
2 2 (14.29%) JUnit
2 2 (14.29%) Mockito
2 2 (14.29%) PostCSS
General
1 4 (28.57%) Finance
2 2 (14.29%) Advertising
2 2 (14.29%) Retail
3 1 (7.14%) Games
Job Titles
1 13 (92.86%) Developer
2 6 (42.86%) Java Developer
3 5 (35.71%) C# Developer
4 4 (28.57%) .NET Developer
4 4 (28.57%) C# .NET Developer
5 3 (21.43%) C# WPF Developer
5 3 (21.43%) Front End Developer (Client-Side Developer)
5 3 (21.43%) WPF Developer
6 2 (14.29%) Architect
6 2 (14.29%) J2EE Developer
6 2 (14.29%) Java/J2EE Developer
7 1 (7.14%) .NET Web Developer
7 1 (7.14%) Angular Developer
7 1 (7.14%) ASP.NET Developer
7 1 (7.14%) ASP.NET MVC Developer
7 1 (7.14%) C# Web Developer
7 1 (7.14%) Graduate Developer
7 1 (7.14%) Graduate Front End Developer (Client-Side Developer)
7 1 (7.14%) Java Architect
7 1 (7.14%) Java Technical Architect
Libraries, Frameworks & Software Standards
1 5 (35.71%) Java EE
2 4 (28.57%) .NET
2 4 (28.57%) AngularJS
2 4 (28.57%) HTML
3 3 (21.43%) Castle Windsor
3 3 (21.43%) J2EE
3 3 (21.43%) Ninject
3 3 (21.43%) REST
3 3 (21.43%) SOAP
3 3 (21.43%) Spring.NET
3 3 (21.43%) Unity DI Container
3 3 (21.43%) Web Services
3 3 (21.43%) WinForms
3 3 (21.43%) WPF
3 3 (21.43%) XML
4 2 (14.29%) Hibernate
4 2 (14.29%) jQuery
4 2 (14.29%) RESTful
4 2 (14.29%) Spring
4 2 (14.29%) Spring MVC
Miscellaneous
1 4 (28.57%) Enterprise Software
2 3 (21.43%) Social Network
3 2 (14.29%) DataPower
3 2 (14.29%) Greenfield Project
4 1 (7.14%) Analytical Skills
4 1 (7.14%) Xbox
Operating Systems
1 4 (28.57%) Windows
2 2 (14.29%) Unix
3 1 (7.14%) Linux
Processes & Methodologies
1 10 (71.43%) Agile Software Development
2 3 (21.43%) Continuous Integration
2 3 (21.43%) Dependency Injection
2 3 (21.43%) E-Commerce
2 3 (21.43%) Inversion of Control
2 3 (21.43%) Kanban
2 3 (21.43%) MVC
2 3 (21.43%) MVVM
2 3 (21.43%) Scrum
2 3 (21.43%) UML
2 3 (21.43%) Web Development
3 2 (14.29%) Dependency Management
3 2 (14.29%) Front End Development
3 2 (14.29%) SOA
4 1 (7.14%) OO
4 1 (7.14%) OOP
4 1 (7.14%) Process Improvement
4 1 (7.14%) TOGAF
4 1 (7.14%) Web Application Development
Programming Languages
1 6 (42.86%) Java
2 5 (35.71%) C#
3 4 (28.57%) JavaScript
4 2 (14.29%) PHP
5 1 (7.14%) Bash Shell
5 1 (7.14%) Groovy
5 1 (7.14%) Python
5 1 (7.14%) Scala
5 1 (7.14%) SQL
System Software
1 1 (7.14%) iptables
Vendors
1 3 (21.43%) Facebook
1 3 (21.43%) Twitter