Period
to 25 November 2017

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

Test-Driven Development (TDD)
Hounslow > Isleworth
6 months to
25 Nov 2017
Same period 2016 Same period 2015
Rank 5 5 3
Rank change year-on-year 0 -2 -1
Permanent jobs citing TDD 6 4 5
As % of all permanent IT jobs advertised in Isleworth 33.33% 33.33% 41.67%
As % of the Processes & Methodologies category 33.33% 33.33% 41.67%
Number of salaries quoted 6 3 2
Isleworth median annual salary £50,000 £68,000 £48,750
Median salary % change year-on-year -26.47% +39.49% -11.36%
10th Percentile £45,000 £47,600 £41,875
90th Percentile £55,000 £81,600 £60,625
Hounslow median annual salary £50,000 £67,500 £51,500
% change year-on-year -25.93% +31.07% -6.36%

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 Isleworth with a requirement for process or methodology skills.

All Process and Methodology Skills
Isleworth
Permanent vacancies with a requirement for process or methodology skills 18 12 12
As % of all permanent IT jobs advertised in Isleworth 100.00% 100.00% 100.00%
Number of salaries quoted 16 11 7
Isleworth median annual salary £55,000 £45,000 £55,000
Median salary % change year-on-year +22.22% -18.18% -
10th Percentile £45,000 £19,500 £32,850
90th Percentile £57,500 £68,000 £75,500
Hounslow median annual salary £51,000 £52,500 £47,500
% change year-on-year -2.86% +10.53% -9.52%

TDD
Job Vacancy Trend in Isleworth

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

Job vacancy trend for TDD in Isleworth

TDD
Salary Trend in Isleworth

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

Salary trend for TDD in Isleworth

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

1 6 (100.00%) C#
1 6 (100.00%) .NET
1 6 (100.00%) SQL Server
1 6 (100.00%) ASP.NET
1 6 (100.00%) MVC
1 6 (100.00%) Advertising
1 6 (100.00%) Agile Software Development
1 6 (100.00%) Ruby
1 6 (100.00%) .NET Framework
1 6 (100.00%) WCF
1 6 (100.00%) Git (software)
1 6 (100.00%) RESTful
1 6 (100.00%) ASP.NET MVC
1 6 (100.00%) BDD
1 6 (100.00%) NoSQL
1 6 (100.00%) Entity Framework
1 6 (100.00%) Node.js
1 6 (100.00%) Facebook
1 6 (100.00%) Web Application Development
1 6 (100.00%) Enterprise Software
1 6 (100.00%) ASP.NET Web API
1 6 (100.00%) SQL Server 2016
1 6 (100.00%) ASP.NET MVC 5
1 6 (100.00%) Code First Entity Framework

TDD
Co-occurring IT Skills in Isleworth 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 6 (100.00%) NoSQL
1 6 (100.00%) SQL Server
1 6 (100.00%) SQL Server 2016
Development Applications
1 6 (100.00%) Git (software)
General
1 6 (100.00%) Advertising
Job Titles
1 6 (100.00%) .NET Developer
1 6 (100.00%) Developer
Libraries, Frameworks & Software Standards
1 6 (100.00%) .NET
1 6 (100.00%) .NET Framework
1 6 (100.00%) ASP.NET
1 6 (100.00%) ASP.NET MVC
1 6 (100.00%) ASP.NET MVC 5
1 6 (100.00%) ASP.NET Web API
1 6 (100.00%) Code First Entity Framework
1 6 (100.00%) Entity Framework
1 6 (100.00%) Node.js
1 6 (100.00%) RESTful
1 6 (100.00%) WCF
Miscellaneous
1 6 (100.00%) Enterprise Software
Processes & Methodologies
1 6 (100.00%) Agile Software Development
1 6 (100.00%) BDD
1 6 (100.00%) MVC
1 6 (100.00%) Web Application Development
Programming Languages
1 6 (100.00%) C#
1 6 (100.00%) Ruby
Vendors
1 6 (100.00%) Facebook