Period
to 19 February 2019

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 19 February 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Cheshire > Warrington
6 months to
19 Feb 2019
Same period 2018 Same period 2017
Rank 21 15 14
Rank change year-on-year -6 -1 +1
Permanent jobs citing TDD 55 88 89
As % of all permanent IT jobs advertised in Warrington 10.72% 14.38% 14.78%
As % of the Processes & Methodologies category 11.25% 16.27% 15.84%
Number of salaries quoted 55 86 89
Warrington median annual salary £55,000 £53,750 £40,000
Median salary % change year-on-year +2.33% +34.38% +6.67%
10th Percentile £43,910 £35,000 £22,500
90th Percentile £62,500 £68,750 £61,750
Cheshire median annual salary £52,500 £47,500 £42,500
% change year-on-year +10.53% +11.76% +8.97%

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 489 541 562
As % of all permanent IT jobs advertised in Warrington 95.32% 88.40% 93.36%
Number of salaries quoted 356 437 478
Warrington median annual salary £45,000 £43,000 £37,500
Median salary % change year-on-year +4.65% +14.67% -6.25%
10th Percentile £30,750 £26,250 £21,875
90th Percentile £65,000 £65,000 £55,000
Cheshire median annual salary £45,000 £45,000 £40,000
% change year-on-year - +12.50% -

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 19 February 2019.

Salary histogram for TDD in Warrington

For the 6 months to 19 February 2019, 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 38 (69.09%) Agile Software Development
2 32 (58.18%) C#
2 32 (58.18%) .NET
3 29 (52.73%) RESTful
4 25 (45.45%) SQL
5 24 (43.64%) Software Engineering
6 21 (38.18%) Java
7 20 (36.36%) SQL Server
8 19 (34.55%) AngularJS
8 19 (34.55%) ASP.NET Web API
9 18 (32.73%) Problem-Solving
9 18 (32.73%) Continuous Integration
10 17 (30.91%) WCF
10 17 (30.91%) Scrum
11 16 (29.09%) WinForms
11 16 (29.09%) Internet
11 16 (29.09%) ASP.NET
11 16 (29.09%) MVC
11 16 (29.09%) WPF
11 16 (29.09%) Kanban
11 16 (29.09%) ASP.NET MVC
11 16 (29.09%) Dependency Injection
11 16 (29.09%) Hyperconnected
11 16 (29.09%) SQL Server 2016
11 16 (29.09%) Continuous Deployment
11 16 (29.09%) MVVM
12 14 (25.45%) SDLC
13 13 (23.64%) Test Automation
13 13 (23.64%) Spring
13 13 (23.64%) Refactoring

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:

Business Applications
1 3 (5.45%) Dynamics CRM
Cloud Services
1 5 (9.09%) Microsoft Azure
2 3 (5.45%) IaaS
3 1 (1.82%) Amazon AWS
3 1 (1.82%) SaaS
Communications & Networking
1 16 (29.09%) Hyperconnected
1 16 (29.09%) Internet
Database & Business Intelligence
1 20 (36.36%) SQL Server
2 16 (29.09%) SQL Server 2016
3 3 (5.45%) Power BI
Development Applications
1 4 (7.27%) Git (software)
2 3 (5.45%) Bitbucket
2 3 (5.45%) Octopus Deploy
2 3 (5.45%) TeamCity
3 1 (1.82%) Jenkins
3 1 (1.82%) LoadRunner
Job Titles
1 47 (85.45%) Developer
2 17 (30.91%) .NET Developer
3 16 (29.09%) Internet Developer
4 13 (23.64%) Java Developer
5 8 (14.55%) Senior Developer
6 6 (10.91%) Lead Developer
7 4 (7.27%) Applications Developer
7 4 (7.27%) Test Manager
7 4 (7.27%) Web Developer
8 2 (3.64%) Principal Developer
8 2 (3.64%) Senior Applications Developer
8 2 (3.64%) User Researcher
9 1 (1.82%) .NET Software Engineer
9 1 (1.82%) Lead .NET Developer
9 1 (1.82%) Lead Web Developer
9 1 (1.82%) Performance Test Leader
9 1 (1.82%) Senior User Researcher
9 1 (1.82%) Senior Web Developer
9 1 (1.82%) Software Engineer
9 1 (1.82%) Test Leader
Libraries, Frameworks & Software Standards
1 32 (58.18%) .NET
2 29 (52.73%) RESTful
3 19 (34.55%) AngularJS
3 19 (34.55%) ASP.NET Web API
4 17 (30.91%) WCF
5 16 (29.09%) ASP.NET
5 16 (29.09%) ASP.NET MVC
5 16 (29.09%) WinForms
5 16 (29.09%) WPF
6 13 (23.64%) Spring
6 13 (23.64%) Web Services
7 4 (7.27%) CSS
7 4 (7.27%) HTML
7 4 (7.27%) Node.js
8 3 (5.45%) .NET Framework
8 3 (5.45%) Entity Framework
9 1 (1.82%) Reactive Extensions
Miscellaneous
1 3 (5.45%) User Experience
2 2 (3.64%) Analytical Skills
3 1 (1.82%) Greenfield Project
3 1 (1.82%) N-Tier
Operating Systems
1 3 (5.45%) Linux
1 3 (5.45%) Windows
1 3 (5.45%) Windows Server
Processes & Methodologies
1 38 (69.09%) Agile Software Development
2 24 (43.64%) Software Engineering
3 18 (32.73%) Continuous Integration
3 18 (32.73%) Problem-Solving
4 17 (30.91%) Scrum
5 16 (29.09%) Continuous Deployment
5 16 (29.09%) Dependency Injection
5 16 (29.09%) Kanban
5 16 (29.09%) MVC
5 16 (29.09%) MVVM
6 14 (25.45%) SDLC
7 13 (23.64%) Data Modelling
7 13 (23.64%) Refactoring
7 13 (23.64%) SOA
7 13 (23.64%) Test Automation
8 5 (9.09%) BDD
8 5 (9.09%) Strategic Thinking
8 5 (9.09%) Technical Leadership
9 4 (7.27%) Creative Thinking
9 4 (7.27%) SOLID
Programming Languages
1 32 (58.18%) C#
2 25 (45.45%) SQL
3 21 (38.18%) Java
4 4 (7.27%) C++
4 4 (7.27%) JavaScript
4 4 (7.27%) Ruby
Systems Management
1 1 (1.82%) Ansible
Vendors
1 10 (18.18%) Microsoft
2 3 (5.45%) Software AG
2 3 (5.45%) webMethods
3 1 (1.82%) Unisys