The following table provides summary statistics for contract job vacancies advertised in Hounslow 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 29 March 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)
London / Hounslow
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank - 5 7
Contract jobs citing TDD 0 1 1
As % of all contract IT jobs advertised in Hounslow - 4.55% 2.86%
As % of the Processes & Methodologies category - 5.26% 4.35%
Number of daily rates quoted 0 1 1
Median daily rate - £488 £500
Median daily rate % change year-on-year - -2.50%  
UK excluding London median daily rate £400 £400 £375
% change year-on-year - +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £45.75 £36.00
% change year-on-year -14.75% +27.08%  

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 Hounslow with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Hounslow
Contract job vacancies with a requirement for process and methodology skills 11 19 23
As % of all contract IT job vacancies advertised in Hounslow 55.00% 86.36% 65.71%
Number of daily rates quoted 2 13 22
Median daily rate £450 £450 £340
Median daily rate % change year-on-year - +32.35%  
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £35.75 £38.50 £30.00
% change year-on-year -7.14% +28.33%  

TDD
Job Vacancy Trend in Hounslow

The job posting trend of jobs advertised in Hounslow 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 Hounslow

TDD
Contractor Daily Rate Trend in Hounslow

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

Contractor daily rate trend for TDD in Hounslow