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 3 months to 25 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
25 Mar 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
London / Twickenham
Rank 13 9 16
Rank change year-on-year -4 +7  
Permanent jobs citing TDD 6 11 1
As % of all permanent IT jobs advertised in Twickenham 11.54% 14.29% 1.49%
As % of the Processes & Methodologies category 15.38% 15.71% 1.79%
Number of salaries quoted 6 11 1
Median salary £50,000 £40,000 £50,000
Median salary % change year-on-year +25.00% -20.00%  
UK excluding London median salary £45,000 £45,000 £40,000
% change year-on-year - +12.50%  

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 Twickenham with a requirement for process and methodology skills.

Process & Methodology Skills
Twickenham
Permanent job vacancies with a requirement for process and methodology skills 39 70 56
As % of all permanent IT job vacancies advertised in Twickenham 75.00% 90.91% 83.58%
Number of salaries quoted 34 66 47
Median salary £50,000 £60,000 £42,500
Median salary % change year-on-year -16.66% +41.17%  
90% offered a salary of more than £35,000 £40,000 £30,000
10% offered a salary of more than £55,000 £60,000 £77,500
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

TDD
Job Vacancy Trend in Twickenham

The job posting trend of jobs advertised in Twickenham citing TDD as a proportion of all permanent or contract IT jobs with a match in the Processes & Methodologies category.

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

TDD
Top 30 Related IT Skills in Twickenham

For the 6 months to 25 March 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 10 (100.00%) C#
1 10 (100.00%) .NET
1 10 (100.00%) ASP.NET
1 10 (100.00%) MVC
1 10 (100.00%) ASP.NET MVC
1 10 (100.00%) BDD
2 9 (90.00%) Web Application Development
2 9 (90.00%) WCF
2 9 (90.00%) SQL Server
2 9 (90.00%) Agile Software Development
2 9 (90.00%) ASP.NET MVC 5
3 6 (60.00%) SQL Server 2016
3 6 (60.00%) OO
3 6 (60.00%) Internet
3 6 (60.00%) Domain-Driven Design
3 6 (60.00%) Games
3 6 (60.00%) CQRS
4 4 (40.00%) ASP.NET Web API
5 3 (30.00%) SQL Server 2014
5 3 (30.00%) Code First Entity Framework
5 3 (30.00%) NoSQL
5 3 (30.00%) Entity Framework
5 3 (30.00%) Node.js
5 3 (30.00%) RESTful
5 3 (30.00%) Git (software)
5 3 (30.00%) Ruby
5 3 (30.00%) Marketing
5 3 (30.00%) .NET Framework
6 1 (10.00%) Degree
6 1 (10.00%) JSON

TDD
Top Related 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:

Cloud Services
1 1 (10.00%) Amazon AWS
1 1 (10.00%) GitHub
Communications & Networking
1 6 (60.00%) Internet
Database & Business Intelligence
1 9 (90.00%) SQL Server
2 6 (60.00%) SQL Server 2016
3 3 (30.00%) NoSQL
3 3 (30.00%) SQL Server 2014
4 1 (10.00%) MySQL
Development Applications
1 3 (30.00%) Git (software)
General
1 6 (60.00%) Games
2 3 (30.00%) Marketing
Job Titles
1 10 (100.00%) .NET Developer
1 10 (100.00%) Developer
2 3 (30.00%) .NET Software Developer
3 1 (10.00%) Digital Developer
Libraries, Frameworks & Software Standards
1 10 (100.00%) .NET
1 10 (100.00%) ASP.NET
1 10 (100.00%) ASP.NET MVC
2 9 (90.00%) ASP.NET MVC 5
2 9 (90.00%) WCF
3 4 (40.00%) ASP.NET Web API
4 3 (30.00%) .NET Framework
4 3 (30.00%) Code First Entity Framework
4 3 (30.00%) Entity Framework
4 3 (30.00%) Node.js
4 3 (30.00%) RESTful
5 1 (10.00%) CSS
5 1 (10.00%) HTML
5 1 (10.00%) JSON
Miscellaneous
1 1 (10.00%) Computer Science
1 1 (10.00%) Digital Media
Processes & Methodologies
1 10 (100.00%) BDD
1 10 (100.00%) MVC
2 9 (90.00%) Agile Software Development
2 9 (90.00%) Web Application Development
3 6 (60.00%) CQRS
3 6 (60.00%) Domain-Driven Design
3 6 (60.00%) OO
4 1 (10.00%) Mathematics
4 1 (10.00%) SOLID
4 1 (10.00%) Unit Testing
Programming Languages
1 10 (100.00%) C#
2 3 (30.00%) Ruby
3 1 (10.00%) JavaScript
Qualifications
1 1 (10.00%) Degree
Twickenham, Middlesex
Digitech Resourcing Ltd
Salary: From £55,000 to £70,000 per annum + Package
Posted: Yesterday
Twickenham, Middlesex
Dawson & Walsh
Salary: £45000 - £55000 per annum + Bonus + Pension + Benefits
Posted: 5 days ago
Twickenham, Middlesex
Dawson & Walsh
Salary: £55000 - £65000 per annum + Bonus + Pension + Benefits
Posted: 4 days ago