Period
to 23 September 2018

The following table provides summary statistics for contract job vacancies advertised in Kingston Upon Thames with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 23 September 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
South London > Kingston Upon Thames
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 19 25 -
Rank change year-on-year +6 - +25
Contract jobs citing TDD 3 10 0
As % of all contract IT jobs advertised in Kingston Upon Thames 2.80% 6.85% -
As % of the Processes & Methodologies category 3.49% 7.46% -
Number of daily rates quoted 3 9 0
Kingston Upon Thames median daily rate £450 £350 -
Median daily rate % change year-on-year +28.57% - -
South London median daily rate £525 £525 £431
% change year-on-year - +21.74% +9.52%
Number of hourly rates quoted 0 0 0
Kingston Upon Thames median hourly rate - - -
South London median hourly rate - - -

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Kingston Upon Thames with a requirement for process or methodology skills.

All Process and Methodology Skills
Kingston Upon Thames
Contract vacancies with a requirement for process or methodology skills 86 134 115
As % of all contract IT jobs advertised in Kingston Upon Thames 80.37% 91.78% 92.00%
Number of daily rates quoted 43 72 66
Kingston Upon Thames median daily rate £400 £425 £393
Median daily rate % change year-on-year -5.88% +8.28% +12.14%
10th Percentile £237 £315 £285
90th Percentile £565 £788 £525
South London median daily rate £513 £475 £425
% change year-on-year +7.89% +11.76% +13.33%
Number of hourly rates quoted 18 40 6
Kingston Upon Thames median hourly rate £44.46 £47.83 £28.67
Median hourly rate % change year-on-year -7.05% +66.86% -45.05%
10th Percentile £35.04 £19.88 £14.00
90th Percentile £47.83 £53.14 £50.00
South London median hourly rate £43.75 £47.00 £18.75
% change year-on-year -6.91% +150.67% -54.17%

TDD
Job Vacancy Trend in Kingston Upon Thames

Job postings citing TDD as a percentage of all IT jobs advertised in Kingston Upon Thames.

Job vacancy trend for TDD in Kingston Upon Thames

TDD
Contractor Daily Rate Trend in Kingston Upon Thames

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Kingston Upon Thames.

Contractor daily rate trend for TDD in Kingston Upon Thames

TDD
Contractor Daily Rate Histogram in Kingston Upon Thames

The daily rate distribution of IT jobs citing TDD in Kingston Upon Thames over the 6 months to 23 September 2018.

Contractor daily rate histogram for TDD in Kingston Upon Thames

For the 6 months to 23 September 2018, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Kingston Upon Thames region with a requirement for TDD.

1 3 (100.00%) AngularJS
2 2 (66.67%) Twitter Bootstrap
2 2 (66.67%) Enterprise Software
2 2 (66.67%) Scrum
2 2 (66.67%) ASP.NET Web API
2 2 (66.67%) Client/Server
2 2 (66.67%) Microsoft
2 2 (66.67%) C#
2 2 (66.67%) Web Services
2 2 (66.67%) Windows
2 2 (66.67%) SQL
2 2 (66.67%) T-SQL
2 2 (66.67%) VB
2 2 (66.67%) VB.NET
2 2 (66.67%) .NET
2 2 (66.67%) SQL Server
2 2 (66.67%) ASP.NET
2 2 (66.67%) Agile Software Development
2 2 (66.67%) VB6
2 2 (66.67%) SQL Server Reporting Services
2 2 (66.67%) Ajax
2 2 (66.67%) JSON
2 2 (66.67%) JIRA
2 2 (66.67%) jQuery
2 2 (66.67%) Team Foundation Server
2 2 (66.67%) RESTful
3 1 (33.33%) Open Source
3 1 (33.33%) HTML5
3 1 (33.33%) BDD
3 1 (33.33%) REST

TDD
Co-occurring IT Skills in Kingston Upon Thames 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 2 (66.67%) SQL Server
1 2 (66.67%) SQL Server Reporting Services
Development Applications
1 2 (66.67%) JIRA
1 2 (66.67%) Team Foundation Server
2 1 (33.33%) CircleCI
2 1 (33.33%) Jenkins
Job Titles
1 3 (100.00%) Developer
2 2 (66.67%) .NET Developer
2 2 (66.67%) C# .NET Developer
2 2 (66.67%) C# Developer
2 2 (66.67%) SQL Developer
3 1 (33.33%) Angular Developer
3 1 (33.33%) Full Stack Developer
3 1 (33.33%) Senior .NET Developer
3 1 (33.33%) Senior C# .NET Developer
3 1 (33.33%) Senior C# Developer
3 1 (33.33%) Senior Developer
3 1 (33.33%) Senior SQL Developer
Libraries, Frameworks & Software Standards
1 3 (100.00%) AngularJS
2 2 (66.67%) .NET
2 2 (66.67%) Ajax
2 2 (66.67%) ASP.NET
2 2 (66.67%) ASP.NET Web API
2 2 (66.67%) jQuery
2 2 (66.67%) JSON
2 2 (66.67%) RESTful
2 2 (66.67%) Twitter Bootstrap
2 2 (66.67%) Web Services
3 1 (33.33%) CSS
3 1 (33.33%) CSS3
3 1 (33.33%) HTML
3 1 (33.33%) HTML5
3 1 (33.33%) REST
3 1 (33.33%) Sass
Miscellaneous
1 2 (66.67%) Client/Server
1 2 (66.67%) Enterprise Software
2 1 (33.33%) User Experience
Operating Systems
1 2 (66.67%) Windows
Processes & Methodologies
1 2 (66.67%) Agile Software Development
1 2 (66.67%) Scrum
2 1 (33.33%) API Design
2 1 (33.33%) BDD
2 1 (33.33%) BEM - Block Element Modifier
2 1 (33.33%) Integration Testing
2 1 (33.33%) Low Latency
2 1 (33.33%) Microservices
2 1 (33.33%) OO
2 1 (33.33%) Open Source
2 1 (33.33%) Secure Coding
2 1 (33.33%) Unit Testing
2 1 (33.33%) Wireframes
Programming Languages
1 2 (66.67%) C#
1 2 (66.67%) SQL
1 2 (66.67%) T-SQL
1 2 (66.67%) VB
1 2 (66.67%) VB.NET
1 2 (66.67%) VB6
2 1 (33.33%) ES6
2 1 (33.33%) JavaScript
Vendors
1 2 (66.67%) Microsoft