Period
to 17 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Epsom 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 17 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Surrey > Epsom
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 20 31 26
Rank change year-on-year +11 -5 +7
Permanent jobs citing TDD 13 4 13
As % of all permanent IT jobs advertised in Epsom 8.72% 2.61% 7.14%
As % of the Processes & Methodologies category 11.02% 3.48% 8.23%
Number of salaries quoted 13 2 42
Epsom median annual salary £37,500 £72,500 £55,000
Median salary % change year-on-year -48.28% +31.82% -4.35%
10th Percentile £31,250 £67,750 £47,500
90th Percentile £57,500 £79,250 £62,500
Surrey median annual salary £50,000 £50,000 £52,500
% change year-on-year - -4.76% +12.90%

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 Epsom with a requirement for process or methodology skills.

All Process and Methodology Skills
Epsom
Permanent vacancies with a requirement for process or methodology skills 118 115 158
As % of all permanent IT jobs advertised in Epsom 79.19% 75.16% 86.81%
Number of salaries quoted 103 109 126
Epsom median annual salary £40,000 £44,500 £42,500
Median salary % change year-on-year -10.11% +4.71% -5.56%
10th Percentile £26,250 £25,750 £26,250
90th Percentile £57,500 £76,000 £62,500
Surrey median annual salary £50,000 £47,500 £45,000
% change year-on-year +5.26% +5.56% -

TDD
Job Vacancy Trend in Epsom

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

Job vacancy trend for TDD in Epsom

TDD
Salary Trend in Epsom

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

Salary trend for TDD in Epsom

TDD
Salary Histogram in Epsom

The salary distribution of IT jobs citing TDD in Epsom over the 6 months to 17 November 2017.

Salary histogram for TDD in Epsom

For the 6 months to 17 November 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 Epsom region with a requirement for TDD.

1 13 (100.00%) C#
1 13 (100.00%) .NET
1 13 (100.00%) SQL Server
1 13 (100.00%) Agile Software Development
2 12 (92.31%) WPF
3 9 (69.23%) Continuous Integration
3 9 (69.23%) NUnit
4 8 (61.54%) Music Industry
4 8 (61.54%) Scrum
4 8 (61.54%) WinForms
4 8 (61.54%) Kanban
4 8 (61.54%) Spring.NET
4 8 (61.54%) Windows
4 8 (61.54%) VB
4 8 (61.54%) VB.NET
4 8 (61.54%) Dependency Injection
4 8 (61.54%) MSTest
4 8 (61.54%) MVVM
4 8 (61.54%) Ninject
4 8 (61.54%) SQL Server 2016
5 5 (38.46%) SQL
5 5 (38.46%) ASP.NET
5 5 (38.46%) MVC
5 5 (38.46%) Team Foundation Server
5 5 (38.46%) .NET Framework
5 5 (38.46%) WCF
5 5 (38.46%) ASP.NET MVC
6 4 (30.77%) Web Development
6 4 (30.77%) Finance
6 4 (30.77%) CSS

TDD
Co-occurring IT Skills in Epsom 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 13 (100.00%) SQL Server
2 8 (61.54%) SQL Server 2016
3 1 (7.69%) SQL Server 2012
Development Applications
1 9 (69.23%) NUnit
2 8 (61.54%) MSTest
3 5 (38.46%) Team Foundation Server
4 4 (30.77%) Visual Studio
5 1 (7.69%) Selenium
General
1 8 (61.54%) Music Industry
2 4 (30.77%) Finance
Job Titles
1 13 (100.00%) .NET Developer
1 13 (100.00%) Developer
2 4 (30.77%) Agile .NET Developer
2 4 (30.77%) Agile Developer
2 4 (30.77%) ASP.NET MVC Developer
2 4 (30.77%) Senior .NET Developer
2 4 (30.77%) Senior Agile Developer
2 4 (30.77%) Senior Developer
2 4 (30.77%) WCF Developer
3 1 (7.69%) Lead .NET Developer
3 1 (7.69%) Lead Developer
Libraries, Frameworks & Software Standards
1 13 (100.00%) .NET
2 12 (92.31%) WPF
3 8 (61.54%) Ninject
3 8 (61.54%) Spring.NET
3 8 (61.54%) WinForms
4 5 (38.46%) .NET Framework
4 5 (38.46%) ASP.NET
4 5 (38.46%) ASP.NET MVC
4 5 (38.46%) WCF
5 4 (30.77%) CSS
5 4 (30.77%) HTML
6 1 (7.69%) AngularJS
6 1 (7.69%) ASP.NET Web API
6 1 (7.69%) Entity Framework
6 1 (7.69%) Twitter Bootstrap
6 1 (7.69%) Web Services
Operating Systems
1 8 (61.54%) Windows
Processes & Methodologies
1 13 (100.00%) Agile Software Development
2 9 (69.23%) Continuous Integration
3 8 (61.54%) Dependency Injection
3 8 (61.54%) Kanban
3 8 (61.54%) MVVM
3 8 (61.54%) Scrum
4 5 (38.46%) MVC
5 4 (30.77%) OO
5 4 (30.77%) SOLID
5 4 (30.77%) Web Development
6 1 (7.69%) BDD
6 1 (7.69%) Translating Business Requirements
Programming Languages
1 13 (100.00%) C#
2 8 (61.54%) VB
2 8 (61.54%) VB.NET
3 5 (38.46%) SQL
4 4 (30.77%) JavaScript
5 1 (7.69%) T-SQL