Period
to 23 November 2017

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

Test-Driven Development (TDD)
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 18 23 21
Rank change year-on-year +5 -2 -13
Permanent jobs citing TDD 15 7 22
As % of all permanent IT jobs advertised in Twickenham 9.38% 5.19% 13.10%
As % of the Processes & Methodologies category 11.72% 5.88% 13.75%
Number of salaries quoted 14 7 54
Twickenham median annual salary £50,000 £45,000 £50,000
Median salary % change year-on-year +11.11% -10.00% +25.00%
10th Percentile £47,500 £35,000 £41,250
90th Percentile £52,500 £56,500 £65,000
Richmond upon Thames median annual salary £50,000 £55,000 £47,500
% change year-on-year -9.09% +15.79% -5.00%

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 Twickenham with a requirement for process or methodology skills.

All Process and Methodology Skills
Twickenham
Permanent vacancies with a requirement for process or methodology skills 128 119 160
As % of all permanent IT jobs advertised in Twickenham 80.00% 88.15% 95.24%
Number of salaries quoted 115 107 154
Twickenham median annual salary £50,000 £42,500 £47,500
Median salary % change year-on-year +17.65% -10.53% +5.56%
10th Percentile £30,400 £28,750 £27,500
90th Percentile £67,500 £61,250 £70,650
Richmond upon Thames median annual salary £52,500 £45,000 £47,500
% change year-on-year +16.67% -5.26% +5.56%

TDD
Job Vacancy Trend in Twickenham

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

Job vacancy trend for TDD in Twickenham

TDD
Salary Trend in Twickenham

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

Salary trend for TDD in Twickenham

For the 6 months to 23 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 Twickenham region with a requirement for TDD.

1 15 (100.00%) C#
1 15 (100.00%) .NET
1 15 (100.00%) SQL Server
1 15 (100.00%) ASP.NET
1 15 (100.00%) OO
1 15 (100.00%) Internet
1 15 (100.00%) MVC
1 15 (100.00%) Games
1 15 (100.00%) Agile Software Development
1 15 (100.00%) WCF
1 15 (100.00%) Domain-Driven Design
1 15 (100.00%) ASP.NET MVC
1 15 (100.00%) BDD
1 15 (100.00%) CQRS
1 15 (100.00%) Web Application Development
1 15 (100.00%) SQL Server 2016
1 15 (100.00%) ASP.NET MVC 5
1 15 (100.00%) Greenfield Project

TDD
Co-occurring IT Skills in Twickenham 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:

Communications & Networking
1 15 (100.00%) Internet
Database & Business Intelligence
1 15 (100.00%) SQL Server
1 15 (100.00%) SQL Server 2016
General
1 15 (100.00%) Games
Job Titles
1 15 (100.00%) .NET Developer
1 15 (100.00%) Developer
Libraries, Frameworks & Software Standards
1 15 (100.00%) .NET
1 15 (100.00%) ASP.NET
1 15 (100.00%) ASP.NET MVC
1 15 (100.00%) ASP.NET MVC 5
1 15 (100.00%) WCF
Miscellaneous
1 15 (100.00%) Greenfield Project
Processes & Methodologies
1 15 (100.00%) Agile Software Development
1 15 (100.00%) BDD
1 15 (100.00%) CQRS
1 15 (100.00%) Domain-Driven Design
1 15 (100.00%) MVC
1 15 (100.00%) OO
1 15 (100.00%) Web Application Development
Programming Languages
1 15 (100.00%) C#