Period
to 25 April 2019

The following table provides summary statistics for permanent job vacancies advertised in Derby 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 25 April 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Derbyshire > Derby
6 months to
25 Apr 2019
Same period 2018 Same period 2017
Rank 39 17 32
Rank change year-on-year -22 +15 +13
Permanent jobs citing TDD 16 57 30
As % of all permanent IT jobs advertised in Derby 4.41% 11.05% 5.81%
As % of the Processes & Methodologies category 4.62% 12.39% 6.40%
Number of salaries quoted 12 55 22
Derby median annual salary £35,500 £42,500 £46,250
Median salary % change year-on-year -16.47% -8.11% +23.33%
10th Percentile £30,000 £32,500 £33,750
90th Percentile £44,000 £55,750 £51,250
Derbyshire median annual salary £35,500 £42,500 £42,500
% change year-on-year -16.47% - +9.68%

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 Derby with a requirement for process or methodology skills.

All Process and Methodology Skills
Derby
Permanent vacancies with a requirement for process or methodology skills 346 460 469
As % of all permanent IT jobs advertised in Derby 95.32% 89.15% 90.89%
Number of salaries quoted 222 382 352
Derby median annual salary £35,750 £40,000 £40,000
Median salary % change year-on-year -10.63% - +12.08%
10th Percentile £22,500 £24,000 £26,250
90th Percentile £58,750 £72,500 £60,000
Derbyshire median annual salary £37,500 £40,000 £40,000
% change year-on-year -6.25% - +12.08%

TDD
Job Vacancy Trend in Derby

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

Job vacancy trend for TDD in Derby

TDD
Salary Trend in Derby

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

Salary trend for TDD in Derby

TDD
Salary Histogram in Derby

The salary distribution of IT jobs citing TDD in Derby over the 6 months to 25 April 2019.

Salary histogram for TDD in Derby

For the 6 months to 25 April 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 Derby region with a requirement for TDD.

1 16 (100.00%) C#
1 16 (100.00%) Degree
2 15 (93.75%) Computer Science
2 15 (93.75%) Visual Studio
2 15 (93.75%) .NET
2 15 (93.75%) Agile Software Development
3 13 (81.25%) Spring
3 13 (81.25%) MVC
4 10 (62.50%) Microsoft
4 10 (62.50%) ASP.NET
4 10 (62.50%) SQL
4 10 (62.50%) Microsoft Azure
5 9 (56.25%) Git (software)
5 9 (56.25%) Subversion
6 8 (50.00%) Software Engineering
6 8 (50.00%) Web Development
6 8 (50.00%) .NET Framework
6 8 (50.00%) T-SQL
6 8 (50.00%) JavaScript
6 8 (50.00%) HTML
6 8 (50.00%) CSS
6 8 (50.00%) ASP.NET MVC
6 8 (50.00%) User Stories
6 8 (50.00%) TypeScript
6 8 (50.00%) Node.js
6 8 (50.00%) React
6 8 (50.00%) webpack
6 8 (50.00%) Visual Studio Code
6 8 (50.00%) Redux
7 7 (43.75%) MVVM

TDD
Co-occurring IT Skills in Derby 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 10 (62.50%) Microsoft Azure
2 6 (37.50%) npm
Database & Business Intelligence
1 4 (25.00%) SQL Server
2 2 (12.50%) SQLite
Development Applications
1 15 (93.75%) Visual Studio
2 9 (56.25%) Git (software)
2 9 (56.25%) Subversion
3 8 (50.00%) Visual Studio Code
3 8 (50.00%) webpack
4 2 (12.50%) ReSharper
4 2 (12.50%) SQL Server Management Studio (SSMS)
5 1 (6.25%) Jenkins
5 1 (6.25%) TeamCity
Job Titles
1 11 (68.75%) Developer
2 5 (31.25%) C# Developer
2 5 (31.25%) Full Stack Developer
2 5 (31.25%) Software Engineer
3 3 (18.75%) C# Software Engineer
3 3 (18.75%) JavaScript Developer
3 3 (18.75%) Software Developer
4 2 (12.50%) C# Software Developer
5 1 (6.25%) Junior
5 1 (6.25%) Junior C# Software Engineer
5 1 (6.25%) Junior Software Engineer
5 1 (6.25%) Senior Developer
5 1 (6.25%) Senior Software Developer
Libraries, Frameworks & Software Standards
1 15 (93.75%) .NET
2 13 (81.25%) Spring
3 10 (62.50%) ASP.NET
4 8 (50.00%) .NET Framework
4 8 (50.00%) ASP.NET MVC
4 8 (50.00%) CSS
4 8 (50.00%) HTML
4 8 (50.00%) Node.js
4 8 (50.00%) React
4 8 (50.00%) Redux
5 2 (12.50%) WPF
6 1 (6.25%) XML
Miscellaneous
1 1 (6.25%) Analytical Skills
Processes & Methodologies
1 15 (93.75%) Agile Software Development
1 15 (93.75%) Computer Science
2 13 (81.25%) MVC
3 8 (50.00%) Software Engineering
3 8 (50.00%) User Stories
3 8 (50.00%) Web Development
4 7 (43.75%) MVVM
4 7 (43.75%) Test Automation
5 5 (31.25%) Dependency Injection
5 5 (31.25%) Mathematics
6 3 (18.75%) Continuous Integration
7 2 (12.50%) Mentoring
8 1 (6.25%) Asset Management
8 1 (6.25%) Problem-Solving
8 1 (6.25%) SDLC
8 1 (6.25%) Unit Testing
Programming Languages
1 16 (100.00%) C#
2 10 (62.50%) SQL
3 8 (50.00%) JavaScript
3 8 (50.00%) T-SQL
3 8 (50.00%) TypeScript
4 7 (43.75%) C++
5 5 (31.25%) C
5 5 (31.25%) Java
5 5 (31.25%) VB.NET
Qualifications
1 16 (100.00%) Degree
2 1 (6.25%) MCP
Quality Assurance & Compliance
1 2 (12.50%) ISO 9001
2 1 (6.25%) QA
2 1 (6.25%) SLA
Vendors
1 10 (62.50%) Microsoft