Period
to 23 September 2018

The following table provides summary statistics for permanent job vacancies advertised in Warrington 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 23 September 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Cheshire > Warrington
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 32 20 12
Rank change year-on-year -12 -8 +10
Permanent jobs citing TDD 52 78 112
As % of all permanent IT jobs advertised in Warrington 7.87% 10.85% 19.79%
As % of the Processes & Methodologies category 8.13% 12.17% 21.01%
Number of salaries quoted 54 77 112
Warrington median annual salary £55,000 £40,000 £40,000
Median salary % change year-on-year +37.50% - +14.29%
10th Percentile £41,000 £35,000 £22,500
90th Percentile £62,500 £68,750 £53,700
Cheshire median annual salary £52,500 £42,500 £40,000
% change year-on-year +23.53% +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 Warrington with a requirement for process or methodology skills.

All Process and Methodology Skills
Warrington
Permanent vacancies with a requirement for process or methodology skills 640 641 533
As % of all permanent IT jobs advertised in Warrington 96.82% 89.15% 94.17%
Number of salaries quoted 504 528 462
Warrington median annual salary £45,000 £40,000 £40,000
Median salary % change year-on-year +12.50% - +2.56%
10th Percentile £28,500 £22,675 £22,500
90th Percentile £65,000 £57,500 £55,000
Cheshire median annual salary £45,000 £40,750 £37,500
% change year-on-year +10.43% +8.67% -6.25%

TDD
Job Vacancy Trend in Warrington

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

Job vacancy trend for TDD in Warrington

TDD
Salary Trend in Warrington

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

Salary trend for TDD in Warrington

TDD
Salary Histogram in Warrington

The salary distribution of IT jobs citing TDD in Warrington over the 6 months to 23 September 2018.

Salary histogram for TDD in Warrington

For the 6 months to 23 September 2018, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Warrington region with a requirement for TDD.

1 50 (96.15%) Agile Software Development
2 46 (88.46%) C#
2 46 (88.46%) .NET
2 46 (88.46%) Continuous Integration
3 42 (80.77%) Scrum
4 40 (76.92%) WCF
5 27 (51.92%) MVC
6 26 (50.00%) ASP.NET
7 25 (48.08%) WPF
8 24 (46.15%) SQL Server
8 24 (46.15%) AngularJS
8 24 (46.15%) ASP.NET Web API
8 24 (46.15%) Problem-Solving
9 23 (44.23%) DevOps
9 23 (44.23%) Kanban
10 22 (42.31%) RESTful
10 22 (42.31%) ASP.NET MVC
10 22 (42.31%) Dependency Injection
10 22 (42.31%) Software Engineering
10 22 (42.31%) WinForms
10 22 (42.31%) Internet
10 22 (42.31%) MVVM
10 22 (42.31%) Hyperconnected
10 22 (42.31%) SQL Server 2016
11 21 (40.38%) Git (software)
12 20 (38.46%) SOLID
13 19 (36.54%) OO
14 18 (34.62%) N-Tier
14 18 (34.62%) SQL
14 18 (34.62%) Unit Testing

TDD
Co-occurring IT Skills in Warrington 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 18 (34.62%) Microsoft Azure
2 17 (32.69%) SaaS
3 1 (1.92%) GitHub
Communications & Networking
1 22 (42.31%) Hyperconnected
1 22 (42.31%) Internet
Database & Business Intelligence
1 24 (46.15%) SQL Server
2 22 (42.31%) SQL Server 2016
Development Applications
1 21 (40.38%) Git (software)
2 17 (32.69%) Jenkins
3 3 (5.77%) Octopus Deploy
3 3 (5.77%) SonarQube
3 3 (5.77%) Team Foundation Server
4 1 (1.92%) GitLab
4 1 (1.92%) MSTest
4 1 (1.92%) NUnit
4 1 (1.92%) webpack
Job Titles
1 25 (48.08%) .NET Developer
1 25 (48.08%) Developer
2 22 (42.31%) Internet Developer
3 21 (40.38%) Software Engineer
4 18 (34.62%) .NET Software Engineer
5 7 (13.46%) Senior Software Engineer
6 4 (7.69%) C# Software Engineer
6 4 (7.69%) Junior
6 4 (7.69%) Junior Software Engineer
6 4 (7.69%) Senior .NET Software Engineer
6 4 (7.69%) Test Manager
7 3 (5.77%) Head of Delivery
7 3 (5.77%) Senior C# Software Engineer
8 2 (3.85%) C# .NET Developer
8 2 (3.85%) C# Developer
8 2 (3.85%) Lead .NET Developer
8 2 (3.85%) Lead Developer
9 1 (1.92%) Lead C# Developer
9 1 (1.92%) Software Tester
9 1 (1.92%) Team Leader
Libraries, Frameworks & Software Standards
1 46 (88.46%) .NET
2 40 (76.92%) WCF
3 26 (50.00%) ASP.NET
4 25 (48.08%) WPF
5 24 (46.15%) AngularJS
5 24 (46.15%) ASP.NET Web API
6 22 (42.31%) ASP.NET MVC
6 22 (42.31%) RESTful
6 22 (42.31%) WinForms
7 4 (7.69%) .NET Core
8 3 (5.77%) .NET Framework
8 3 (5.77%) ASP.NET Core
8 3 (5.77%) Entity Framework
9 1 (1.92%) Ember.js
9 1 (1.92%) HTML
9 1 (1.92%) LESS
9 1 (1.92%) React
9 1 (1.92%) Reactive Extensions
9 1 (1.92%) Sass
9 1 (1.92%) Web Services
Miscellaneous
1 18 (34.62%) N-Tier
2 1 (1.92%) Computer Science
2 1 (1.92%) Enterprise Software
2 1 (1.92%) Greenfield Project
Operating Systems
1 1 (1.92%) Linux
1 1 (1.92%) Windows
Processes & Methodologies
1 50 (96.15%) Agile Software Development
2 46 (88.46%) Continuous Integration
3 42 (80.77%) Scrum
4 27 (51.92%) MVC
5 24 (46.15%) Problem-Solving
6 23 (44.23%) DevOps
6 23 (44.23%) Kanban
7 22 (42.31%) Dependency Injection
7 22 (42.31%) MVVM
7 22 (42.31%) Software Engineering
8 20 (38.46%) SOLID
9 19 (36.54%) OO
10 18 (34.62%) Unit Testing
11 17 (32.69%) Don't repeat yourself (DRY)
11 17 (32.69%) OOP
12 4 (7.69%) BDD
12 4 (7.69%) Waterfall
13 3 (5.77%) Microservices
13 3 (5.77%) SOA
13 3 (5.77%) Software Architecture
Programming Languages
1 46 (88.46%) C#
2 18 (34.62%) SQL
3 2 (3.85%) JavaScript
4 1 (1.92%) ES6
4 1 (1.92%) Java
4 1 (1.92%) Python
4 1 (1.92%) T-SQL
4 1 (1.92%) TypeScript
Qualifications
1 1 (1.92%) Degree
Quality Assurance & Compliance
1 2 (3.85%) QA
Systems Management
1 18 (34.62%) Ansible
2 1 (1.92%) Terraform
Vendors
1 3 (5.77%) Microsoft
1 3 (5.77%) Xamarin
2 1 (1.92%) Unisys