The following table provides summary statistics for permanent job vacancies advertised in Brentwood with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 3 months to 29 June 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Essex / Brentwood
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 15 - -
Rank change year-on-year - 0  
Permanent jobs citing TDD 5 0 0
As % of all permanent IT jobs advertised in Brentwood 11.11% - -
As % of the Processes & Methodologies category 11.36% - -
Number of salaries quoted 5 0 0
Median salary £55,000 - -
UK excluding London median salary £45,000 £44,000 £42,500
% change year-on-year +2.27% +3.52%  

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Brentwood with a requirement for process and methodology skills.

Process & Methodology Skills
Brentwood
Permanent job vacancies with a requirement for process and methodology skills 44 99 168
As % of all permanent IT job vacancies advertised in Brentwood 97.78% 83.90% 97.11%
Number of salaries quoted 127 180 325
Median salary £55,000 £55,000 £47,500
Median salary % change year-on-year - +15.78%  
90% offered a salary of more than £41,250 £36,250 £37,000
10% offered a salary of more than £72,500 £82,500 £97,500
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

TDD
Job Vacancy Trend in Brentwood

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

Job vacancy trend for TDD in Brentwood

TDD
Salary Trend in Brentwood

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

Salary trend for TDD in Brentwood

For the 6 months to 29 June 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 Brentwood region with a requirement for TDD.

1 8 (100.00%) C#
1 8 (100.00%) .NET
1 8 (100.00%) Agile Software Development
1 8 (100.00%) .NET Framework
1 8 (100.00%) Team Foundation Server
2 7 (87.50%) RESTful
2 7 (87.50%) Microsoft Azure
2 7 (87.50%) Amazon AWS
2 7 (87.50%) Continuous Integration
2 7 (87.50%) Kanban
2 7 (87.50%) Cloud Computing
2 7 (87.50%) Git (software)
2 7 (87.50%) NHibernate
2 7 (87.50%) Business Development
2 7 (87.50%) SQL Server
2 7 (87.50%) MVC
2 7 (87.50%) Scrum
2 7 (87.50%) HTML
2 7 (87.50%) JavaScript
2 7 (87.50%) CSS
2 7 (87.50%) OOP
2 7 (87.50%) OO
2 7 (87.50%) Entity Framework
2 7 (87.50%) Node.js
2 7 (87.50%) AngularJS
2 7 (87.50%) Twitter Bootstrap
2 7 (87.50%) ASP.NET Web API
2 7 (87.50%) DevOps
2 7 (87.50%) Don't repeat yourself (DRY)
2 7 (87.50%) SOLID

TDD
Co-occurring IT Skills in Brentwood 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 7 (87.50%) Amazon AWS
1 7 (87.50%) Cloud Computing
1 7 (87.50%) Microsoft Azure
Database & Business Intelligence
1 7 (87.50%) SQL Server
2 1 (12.50%) Data Warehouse
2 1 (12.50%) SQL Server Integration Services
2 1 (12.50%) SQL Server Reporting Services
Development Applications
1 8 (100.00%) Team Foundation Server
2 7 (87.50%) Git (software)
3 1 (12.50%) Subversion
General
1 1 (12.50%) Finance
Job Titles
1 8 (100.00%) Developer
2 7 (87.50%) .NET Developer
2 7 (87.50%) Agile .NET Developer
2 7 (87.50%) Agile Developer
3 6 (75.00%) Senior Developer
4 5 (62.50%) Senior .NET Developer
4 5 (62.50%) Senior Agile Developer
5 3 (37.50%) Digital Developer
6 1 (12.50%) Senior SQL Developer
6 1 (12.50%) SQL Developer
Libraries, Frameworks & Software Standards
1 8 (100.00%) .NET
1 8 (100.00%) .NET Framework
2 7 (87.50%) AngularJS
2 7 (87.50%) ASP.NET Web API
2 7 (87.50%) CSS
2 7 (87.50%) Entity Framework
2 7 (87.50%) HTML
2 7 (87.50%) NHibernate
2 7 (87.50%) Node.js
2 7 (87.50%) RESTful
2 7 (87.50%) Twitter Bootstrap
3 4 (50.00%) ASP.NET
3 4 (50.00%) ASP.NET MVC
4 3 (37.50%) CSS3
4 3 (37.50%) HTML5
Miscellaneous
1 7 (87.50%) Greenfield Project
2 1 (12.50%) Analytical Skills
Processes & Methodologies
1 8 (100.00%) Agile Software Development
2 7 (87.50%) Business Development
2 7 (87.50%) Continuous Integration
2 7 (87.50%) DevOps
2 7 (87.50%) Don't repeat yourself (DRY)
2 7 (87.50%) Kanban
2 7 (87.50%) MVC
2 7 (87.50%) OO
2 7 (87.50%) OOP
2 7 (87.50%) Scrum
2 7 (87.50%) SOLID
3 4 (50.00%) Machine Learning
4 1 (12.50%) Software Testing
4 1 (12.50%) Unit Testing
Programming Languages
1 8 (100.00%) C#
2 7 (87.50%) JavaScript
3 1 (12.50%) SQL
3 1 (12.50%) T-SQL
3 1 (12.50%) VB.NET
Qualifications
1 1 (12.50%) Degree