The following table provides summary statistics for contract job vacancies advertised in Peterborough with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 3 months to 22 June 2017 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)
Cambridgeshire / Peterborough
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 12 18 21
Rank change year-on-year +6 +3  
Contract jobs citing TDD 6 2 4
As % of all contract IT jobs advertised in Peterborough 6.52% 2.04% 3.31%
As % of the Processes & Methodologies category 8.33% 2.86% 4.21%
Number of daily rates quoted 6 2 4
Median daily rate £300 £325 £450
Median daily rate % change year-on-year -7.69% -27.77%  
UK excluding London median daily rate £420 £413 £375
% change year-on-year +1.81% +10.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £41.50 £40.00 £42.50
% change year-on-year +3.75% -5.88%  

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

Contract Process & Methodology Skills
Peterborough
Contract job vacancies with a requirement for process and methodology skills 72 70 95
As % of all contract IT job vacancies advertised in Peterborough 78.26% 71.43% 78.51%
Number of daily rates quoted 40 39 49
Median daily rate £370 £350 £375
Median daily rate % change year-on-year +5.71% -6.66%  
90% offered a daily rate of more than £241 £257 £225
10% offered a daily rate of more than £438 £500 £500
UK excluding London median daily rate £415 £400 £385
% change year-on-year +3.75% +3.89%  
Number of hourly rates quoted 14 10 27
Median hourly rate £17.50 £15.75 £12.25
Median hourly rate % change year-on-year +11.11% +28.57%  
90% offered a hourly rate of more than £11.99 £10.00 £12.00
10% offered a hourly rate of more than £20.50 £31.00 £23.30
UK excluding London median hourly rate £33.50 £28.50 £30.00
% change year-on-year +17.54% -5.00%  

TDD
Job Vacancy Trend in Peterborough

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

Job vacancy trend for TDD in Peterborough

TDD
Contractor Daily Rate Trend in Peterborough

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

Contractor daily rate trend for TDD in Peterborough

For the 6 months to 22 June 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Peterborough region with a requirement for TDD.

1 12 (92.31%) Agile Software Development
2 8 (61.54%) C#
2 8 (61.54%) .NET
3 7 (53.85%) SQL Server
4 6 (46.15%) Microsoft
4 6 (46.15%) WCF
4 6 (46.15%) SDLC
5 5 (38.46%) Performance Tuning
5 5 (38.46%) Selenium
5 5 (38.46%) Git (software)
5 5 (38.46%) Team Foundation Server
5 5 (38.46%) SQL
5 5 (38.46%) NHibernate
6 4 (30.77%) Eclipse
6 4 (30.77%) Java
6 4 (30.77%) Test Automation
6 4 (30.77%) JBehave
6 4 (30.77%) WebDriver
6 4 (30.77%) Atlassian Bamboo
6 4 (30.77%) Jenkins
6 4 (30.77%) Appium
7 3 (23.08%) Manual Testing
7 3 (23.08%) JavaScript
8 2 (15.38%) JUnit
8 2 (15.38%) Regression Testing
8 2 (15.38%) Back Office
8 2 (15.38%) MVC
8 2 (15.38%) CSS
8 2 (15.38%) OO
8 2 (15.38%) Test Scripting

TDD
Co-occurring IT Skills in Peterborough 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 7 (53.85%) SQL Server
Development Applications
1 5 (38.46%) Git (software)
1 5 (38.46%) Selenium
1 5 (38.46%) Team Foundation Server
2 4 (30.77%) Appium
2 4 (30.77%) Atlassian Bamboo
2 4 (30.77%) Eclipse
2 4 (30.77%) JBehave
2 4 (30.77%) Jenkins
2 4 (30.77%) WebDriver
3 2 (15.38%) Cucumber
3 2 (15.38%) JUnit
4 1 (7.69%) Grunt
4 1 (7.69%) gulp
4 1 (7.69%) Karma Test Runner
4 1 (7.69%) Mocha
4 1 (7.69%) Moq
4 1 (7.69%) NUnit
General
1 2 (15.38%) Back Office
2 1 (7.69%) Finance
Job Titles
1 9 (69.23%) Developer
2 8 (61.54%) .NET Developer
3 7 (53.85%) C# .NET Developer
3 7 (53.85%) C# Developer
4 6 (46.15%) C# WCF Developer
4 6 (46.15%) SQL Developer
4 6 (46.15%) SQL Server Developer
4 6 (46.15%) WCF Developer
5 4 (30.77%) Analyst
5 4 (30.77%) Test Analyst
6 2 (15.38%) Automation Test Analyst
6 2 (15.38%) JavaScript Developer
7 1 (7.69%) ASP.NET MVC Developer
7 1 (7.69%) QA Analyst
7 1 (7.69%) QA Automation Analyst
7 1 (7.69%) QA Test Analyst
7 1 (7.69%) XML Developer
7 1 (7.69%) XML XSLT Developer
Libraries, Frameworks & Software Standards
1 8 (61.54%) .NET
2 6 (46.15%) WCF
3 5 (38.46%) NHibernate
4 2 (15.38%) AngularJS
4 2 (15.38%) CSS
5 1 (7.69%) .NET Framework
5 1 (7.69%) Angular 2
5 1 (7.69%) ASP.NET
5 1 (7.69%) ASP.NET Web API
5 1 (7.69%) Backbone.js
5 1 (7.69%) CSS3
5 1 (7.69%) Highcharts JS
5 1 (7.69%) HTML
5 1 (7.69%) HTML5
5 1 (7.69%) KnockoutJS
5 1 (7.69%) Node.js
5 1 (7.69%) RESTful
5 1 (7.69%) XML
5 1 (7.69%) XSLT
Miscellaneous
1 1 (7.69%) Analytical Skills
1 1 (7.69%) Greenfield Project
Processes & Methodologies
1 12 (92.31%) Agile Software Development
2 6 (46.15%) SDLC
3 5 (38.46%) Performance Tuning
4 4 (30.77%) Test Automation
5 3 (23.08%) Manual Testing
6 2 (15.38%) MVC
6 2 (15.38%) OO
6 2 (15.38%) Regression Testing
6 2 (15.38%) Test Scripting
7 1 (7.69%) Continuous Improvement
7 1 (7.69%) Defect Management
7 1 (7.69%) E-Commerce
7 1 (7.69%) Front End Development
7 1 (7.69%) Inversion of Control
7 1 (7.69%) Responsive Web Design
7 1 (7.69%) SOLID
7 1 (7.69%) Web Design
Programming Languages
1 8 (61.54%) C#
2 5 (38.46%) SQL
3 4 (30.77%) Java
4 3 (23.08%) JavaScript
5 1 (7.69%) PHP
Qualifications
1 2 (15.38%) Degree
Quality Assurance & Compliance
1 2 (15.38%) QA
Vendors
1 6 (46.15%) Microsoft