Period
to 19 January 2018

The following table provides summary statistics for permanent job vacancies advertised in Wigan with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 19 January 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Manchester > Wigan
6 months to
19 Jan 2018
Same period 2017 Same period 2016
Rank 10 15 21
Rank change year-on-year +5 +6 +17
Permanent jobs citing TDD 25 20 1
As % of all permanent IT jobs advertised in Wigan 23.58% 20.62% 1.03%
As % of the Processes & Methodologies category 24.75% 23.26% 1.32%
Number of salaries quoted 24 20 1
Wigan median annual salary £40,500 £40,000 £37,500
Median salary % change year-on-year +1.25% +6.67% +7.14%
10th Percentile £32,500 £29,625 £33,750
90th Percentile £71,250 £48,625 £41,250
Manchester median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% +6.25%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Wigan with a requirement for process or methodology skills.

All Process and Methodology Skills
Wigan
Permanent vacancies with a requirement for process or methodology skills 101 86 76
As % of all permanent IT jobs advertised in Wigan 95.28% 88.66% 78.35%
Number of salaries quoted 88 82 69
Wigan median annual salary £37,500 £37,500 £31,000
Median salary % change year-on-year - +20.97% -4.62%
10th Percentile £21,425 £22,500 £21,250
90th Percentile £58,750 £47,500 £45,000
Manchester median annual salary £45,000 £42,500 £40,500
% change year-on-year +5.88% +4.94% +5.19%

TDD
Job Vacancy Trend in Wigan

Job postings citing TDD as a percentage of all IT jobs advertised in Wigan.

Job vacancy trend for TDD in Wigan

TDD
Salary Trend in Wigan

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

Salary trend for TDD in Wigan

TDD
Salary Histogram in Wigan

The salary distribution of IT jobs citing TDD in Wigan over the 6 months to 19 January 2018.

Salary histogram for TDD in Wigan

For the 6 months to 19 January 2018, 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 Wigan region with a requirement for TDD.

1 18 (72.00%) Git (software)
2 17 (68.00%) Agile Software Development
3 15 (60.00%) MVC
4 11 (44.00%) C#
4 11 (44.00%) .NET
5 10 (40.00%) Node.js
6 9 (36.00%) Web Application Development
6 9 (36.00%) ASP.NET Web API
6 9 (36.00%) SQL Server
6 9 (36.00%) ASP.NET
6 9 (36.00%) ASP.NET MVC
7 8 (32.00%) RESTful
7 8 (32.00%) Continuous Integration
7 8 (32.00%) Ruby
7 8 (32.00%) .NET Framework
7 8 (32.00%) WCF
7 8 (32.00%) Entity Framework
7 8 (32.00%) DevOps
7 8 (32.00%) BDD
7 8 (32.00%) NoSQL
7 8 (32.00%) SQL Server 2016
7 8 (32.00%) ASP.NET MVC 5
7 8 (32.00%) Code First Entity Framework
8 7 (28.00%) JavaScript
9 6 (24.00%) VMware
9 6 (24.00%) PHP
9 6 (24.00%) MySQL
9 6 (24.00%) Microsoft
9 6 (24.00%) Windows
9 6 (24.00%) Linux

TDD
Co-occurring IT Skills in Wigan 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:

Cloud Services
1 5 (20.00%) Microsoft Azure
2 4 (16.00%) Amazon AWS
3 3 (12.00%) GitHub
4 2 (8.00%) SaaS
Database & Business Intelligence
1 9 (36.00%) SQL Server
2 8 (32.00%) NoSQL
2 8 (32.00%) SQL Server 2016
3 6 (24.00%) MySQL
Development Applications
1 18 (72.00%) Git (software)
2 6 (24.00%) NuGet
3 1 (4.00%) Selenium
3 1 (4.00%) Subversion
General
1 1 (4.00%) Retail
Job Titles
1 19 (76.00%) Developer
2 11 (44.00%) .NET Developer
3 7 (28.00%) Senior Developer
4 6 (24.00%) PHP Developer
4 6 (24.00%) Team Leader
5 5 (20.00%) Senior PHP Developer
6 4 (16.00%) DevOps Engineer
6 4 (16.00%) Lead DevOps
6 4 (16.00%) Lead DevOps Engineer
7 2 (8.00%) .NET Software Developer
7 2 (8.00%) Android Developer
7 2 (8.00%) Artificial Intelligence Developer
7 2 (8.00%) iOS Android Developer
7 2 (8.00%) iOS Developer
7 2 (8.00%) Lead Systems Engineer
7 2 (8.00%) Senior .NET Developer
7 2 (8.00%) Senior .NET Software Developer
7 2 (8.00%) Senior DevOps
7 2 (8.00%) Senior DevOps Engineer
7 2 (8.00%) Senior Software Developer
Libraries, Frameworks & Software Standards
1 11 (44.00%) .NET
2 10 (40.00%) Node.js
3 9 (36.00%) ASP.NET
3 9 (36.00%) ASP.NET MVC
3 9 (36.00%) ASP.NET Web API
4 8 (32.00%) .NET Framework
4 8 (32.00%) ASP.NET MVC 5
4 8 (32.00%) Code First Entity Framework
4 8 (32.00%) Entity Framework
4 8 (32.00%) RESTful
4 8 (32.00%) WCF
5 6 (24.00%) Symfony
6 5 (20.00%) jQuery
7 4 (16.00%) AngularJS
7 4 (16.00%) CSS
7 4 (16.00%) HTML
8 3 (12.00%) Ajax
9 2 (8.00%) LAMP
10 1 (4.00%) Twitter Bootstrap
10 1 (4.00%) Web Services
Miscellaneous
1 3 (12.00%) Greenfield Project
2 2 (8.00%) Analytical Skills
3 1 (4.00%) iPad
3 1 (4.00%) Mobile App
Operating Systems
1 6 (24.00%) Linux
1 6 (24.00%) Windows
2 2 (8.00%) Android
2 2 (8.00%) Apple iOS
Processes & Methodologies
1 17 (68.00%) Agile Software Development
2 15 (60.00%) MVC
3 9 (36.00%) Web Application Development
4 8 (32.00%) BDD
4 8 (32.00%) Continuous Integration
4 8 (32.00%) DevOps
5 6 (24.00%) Continuous Delivery
6 5 (20.00%) OOP
7 3 (12.00%) OO PHP
7 3 (12.00%) Unit Testing
8 2 (8.00%) Android Development
8 2 (8.00%) Don't repeat yourself (DRY)
8 2 (8.00%) iOS Development
8 2 (8.00%) Kanban
8 2 (8.00%) Machine Learning
8 2 (8.00%) Multithreading
8 2 (8.00%) OO
8 2 (8.00%) OOA/OOD
8 2 (8.00%) OOD
8 2 (8.00%) SEO
Programming Languages
1 11 (44.00%) C#
2 8 (32.00%) Ruby
3 7 (28.00%) JavaScript
4 6 (24.00%) PHP
5 2 (8.00%) C++
5 2 (8.00%) PowerShell
5 2 (8.00%) VB.NET
6 1 (4.00%) Objective-C
System Software
1 6 (24.00%) Hyper-V
1 6 (24.00%) VirtualBox
1 6 (24.00%) VMware Infrastructure
1 6 (24.00%) Xen
2 2 (8.00%) Virtual Machines
Systems Management
1 6 (24.00%) Ansible
1 6 (24.00%) Opscode Chef
1 6 (24.00%) Puppet
Vendors
1 6 (24.00%) Microsoft
1 6 (24.00%) VMware
2 1 (4.00%) Xamarin
2 1 (4.00%) Zend