The table below looks at the statistics for TDD skills in IT jobs advertised for the Preston region. Included is a guide to the salaries offered in IT jobs that have cited TDD over the 3 months to 16 January 2017 with a comparison to the same period over the previous 2 years.

3 months to
16 Jan 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
Lancashire / Preston
Rank 32 12 33
Rank change year-on-year
-20 +21
Permanent jobs citing TDD 2 11 1
As % of all permanent IT jobs located in Preston 1.50% 14.86% 0.71%
As % of the Processes & Methodologies category 1.75% 16.92% 0.76%
Number of salaries quoted 2 11 1
Median salary £22,500 £40,000 £33,000
Median salary % change year-on-year
-43.75% +21.21%
UK excluding London median salary £45,000 £45,000 £40,000
% change year-on-year
- +12.50%

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

Processes & Methodologies Category
Preston
Permanent IT job ads with a match in the
Processes & Methodologies category
114 65 132
As % of all permanent IT jobs located in Preston 85.71% 87.84% 94.29%
Number of salaries quoted 105 63 117
Median salary £39,000 £37,500 £32,500
Median salary % change year-on-year
+4.00% +15.38%
90% offered a salary of more than £23,496 £27,500 £22,500
10% offered a salary of more than £52,500 £51,900 £42,500
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year
- +5.88%

TDD
Jobs Demand Trend in Preston

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

TDD Jobs Demand Trend in Preston

TDD
Salary Trend in Preston

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

TDD Salary Trend in Preston

TDD
Top 30 Related IT Skills in Preston

For the 6 months to 16 January 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 Preston region with a requirement for TDD.

1 7 (100.00%) C#
1 7 (100.00%) .NET
1 7 (100.00%) ASP.NET
1 7 (100.00%) MVC
1 7 (100.00%) Agile Software Development
1 7 (100.00%) BDD
1 7 (100.00%) ASP.NET MVC
2 5 (71.43%) Web Application Development
2 5 (71.43%) ASP.NET Web API
2 5 (71.43%) SQL Server 2014
2 5 (71.43%) ASP.NET MVC 5
2 5 (71.43%) RESTful
2 5 (71.43%) SQL Server
3 4 (57.14%) Business Intelligence
3 4 (57.14%) WinForms
3 4 (57.14%) Windows
3 4 (57.14%) Ruby
3 4 (57.14%) WCF
3 4 (57.14%) WPF
3 4 (57.14%) .NET Framework
3 4 (57.14%) Git (software)
3 4 (57.14%) Code First Entity Framework
3 4 (57.14%) MVVM
3 4 (57.14%) NoSQL
3 4 (57.14%) Entity Framework
3 4 (57.14%) Node.js
4 2 (28.57%) Degree
4 2 (28.57%) Marketing
4 2 (28.57%) Linux
4 2 (28.57%) Python

TDD
Top Related IT Skills in Preston 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:

Database & Business Intelligence
1 5 (71.43%) SQL Server
1 5 (71.43%) SQL Server 2014
2 4 (57.14%) NoSQL
Development Applications
1 4 (57.14%) Git (software)
General
1 2 (28.57%) Marketing
Job Titles
1 7 (100.00%) Developer
2 5 (71.43%) .NET Developer
3 2 (28.57%) C# Developer
3 2 (28.57%) Graduate
3 2 (28.57%) Graduate C# Developer
3 2 (28.57%) Graduate Developer
3 2 (28.57%) Graduate Java Developer
3 2 (28.57%) Graduate Python Developer
3 2 (28.57%) Java Developer
3 2 (28.57%) Junior
3 2 (28.57%) Junior C# Developer
3 2 (28.57%) Junior Developer
3 2 (28.57%) Junior Java Developer
3 2 (28.57%) Junior Python Developer
3 2 (28.57%) Linux Developer
3 2 (28.57%) Python Developer
Libraries, Frameworks & Software Standards
1 7 (100.00%) .NET
1 7 (100.00%) ASP.NET
1 7 (100.00%) ASP.NET MVC
2 5 (71.43%) ASP.NET MVC 5
2 5 (71.43%) ASP.NET Web API
2 5 (71.43%) RESTful
3 4 (57.14%) .NET Framework
3 4 (57.14%) Code First Entity Framework
3 4 (57.14%) Entity Framework
3 4 (57.14%) Node.js
3 4 (57.14%) WCF
3 4 (57.14%) WinForms
3 4 (57.14%) WPF
4 2 (28.57%) J2EE
5 1 (14.29%) AngularJS
5 1 (14.29%) KnockoutJS
5 1 (14.29%) Twitter Bootstrap
Miscellaneous
1 1 (14.29%) Tandem
Operating Systems
1 4 (57.14%) Windows
2 2 (28.57%) Linux
Processes & Methodologies
1 7 (100.00%) Agile Software Development
1 7 (100.00%) BDD
1 7 (100.00%) MVC
2 5 (71.43%) Web Application Development
3 4 (57.14%) Business Intelligence
3 4 (57.14%) MVVM
Programming Languages
1 7 (100.00%) C#
2 4 (57.14%) Ruby
3 2 (28.57%) Java
3 2 (28.57%) Python
Qualifications
1 2 (28.57%) Degree
Vendors
1 1 (14.29%) Microsoft