The following table provides summary statistics for permanent job vacancies advertised in Preston 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 29 March 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Lancashire / Preston
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 30 14 18
Rank change year-on-year -16 +4  
Permanent jobs citing TDD 1 6 4
As % of all permanent IT jobs advertised in Preston 0.82% 10.53% 5.41%
As % of the Processes & Methodologies category 0.96% 12.00% 6.56%
Number of salaries quoted 1 6 4
Median salary £32,500 £38,750 £27,500
Median salary % change year-on-year -16.12% +40.90%  
UK excluding London median salary £45,000 £45,000 £41,500
% change year-on-year - +8.43%  

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 Preston with a requirement for process and methodology skills.

Process & Methodology Skills
Preston
Permanent job vacancies with a requirement for process and methodology skills 104 50 61
As % of all permanent IT job vacancies advertised in Preston 85.25% 87.72% 82.43%
Number of salaries quoted 98 41 50
Median salary £40,000 £37,500 £35,000
Median salary % change year-on-year +6.66% +7.14%  
90% offered a salary of more than £27,500 £22,000 £27,500
10% offered a salary of more than £45,500 £45,000 £53,750
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

TDD
Job Vacancy Trend in Preston

The job posting trend of jobs advertised in Preston 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 Preston

TDD
Salary Trend in Preston

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

Salary trend for TDD in Preston

For the 6 months to 29 March 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 3 (100.00%) C#
1 3 (100.00%) .NET
1 3 (100.00%) ASP.NET
1 3 (100.00%) MVC
1 3 (100.00%) Agile Software Development
1 3 (100.00%) ASP.NET MVC
1 3 (100.00%) BDD
2 2 (66.67%) Marketing
2 2 (66.67%) Linux
2 2 (66.67%) Python
2 2 (66.67%) J2EE
2 2 (66.67%) Java
2 2 (66.67%) Degree
3 1 (33.33%) Code First Entity Framework
3 1 (33.33%) SQL Server 2016
3 1 (33.33%) ASP.NET MVC 5
3 1 (33.33%) WCF
3 1 (33.33%) JavaScript
3 1 (33.33%) SQL Server
3 1 (33.33%) Games
3 1 (33.33%) Git (software)
3 1 (33.33%) RESTful
3 1 (33.33%) .NET Framework
3 1 (33.33%) Ruby
3 1 (33.33%) NoSQL
3 1 (33.33%) Entity Framework
3 1 (33.33%) Node.js
3 1 (33.33%) KnockoutJS
3 1 (33.33%) Web Application Development
3 1 (33.33%) AngularJS

TDD
Co-occurring 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 1 (33.33%) NoSQL
1 1 (33.33%) SQL Server
1 1 (33.33%) SQL Server 2016
Development Applications
1 1 (33.33%) Git (software)
General
1 2 (66.67%) Marketing
2 1 (33.33%) Games
Job Titles
1 3 (100.00%) Developer
2 2 (66.67%) C# Developer
2 2 (66.67%) Graduate
2 2 (66.67%) Graduate C# Developer
2 2 (66.67%) Graduate Developer
2 2 (66.67%) Graduate Java Developer
2 2 (66.67%) Graduate Python Developer
2 2 (66.67%) Java Developer
2 2 (66.67%) Junior
2 2 (66.67%) Junior C# Developer
2 2 (66.67%) Junior Developer
2 2 (66.67%) Junior Java Developer
2 2 (66.67%) Junior Python Developer
2 2 (66.67%) Linux Developer
2 2 (66.67%) Python Developer
3 1 (33.33%) .NET Developer
Libraries, Frameworks & Software Standards
1 3 (100.00%) .NET
1 3 (100.00%) ASP.NET
1 3 (100.00%) ASP.NET MVC
2 2 (66.67%) J2EE
3 1 (33.33%) .NET Framework
3 1 (33.33%) AngularJS
3 1 (33.33%) ASP.NET MVC 5
3 1 (33.33%) ASP.NET Web API
3 1 (33.33%) Code First Entity Framework
3 1 (33.33%) Entity Framework
3 1 (33.33%) KnockoutJS
3 1 (33.33%) Node.js
3 1 (33.33%) RESTful
3 1 (33.33%) Twitter Bootstrap
3 1 (33.33%) WCF
Operating Systems
1 2 (66.67%) Linux
Processes & Methodologies
1 3 (100.00%) Agile Software Development
1 3 (100.00%) BDD
1 3 (100.00%) MVC
2 1 (33.33%) Web Application Development
Programming Languages
1 3 (100.00%) C#
2 2 (66.67%) Java
2 2 (66.67%) Python
3 1 (33.33%) JavaScript
3 1 (33.33%) Ruby
Qualifications
1 2 (66.67%) Degree
Preston, Lancashire
Dawson & Walsh
Salary: £30000 - £35000 per annum + Bonus + Pension + Benefits
Posted: 2 days ago
Preston, Lancashire
Cegedimrx
Salary: Up to £50,000 per annum Plus Company Benefits
Posted: 19 days ago