The table below looks at the statistics for TDD skills in IT contracts advertised for the Welwyn Garden City region. Included is a guide to the average contractor rates offered in IT contracts that have cited TDD over the 3 months to 20 April 2015 with a comparison to the same period in the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

Location
3 months to
20 Apr 2015
Same period 2014 Same period 2013
Test-Driven Development (TDD)
Rank - 15 8
Contract jobs citing TDD 0 2 1
As % of all contract IT jobs located in Welwyn Garden City - 2.70% 3.57%
As % of the Processes & Methodologies category - 3.64% 4.35%
Number of daily rates quoted 0 2 0
Average daily rate
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- £425 -
UK excluding London average daily rate £375 £375 £350
% change year-on-year
- +7.14%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate £39.25 £45.00 £37.50
% change year-on-year
-12.77% +20.00%
TDD
Hertfordshire

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Welwyn Garden City region.

Processes & Methodologies Category
Welwyn Garden City
Contract IT job ads with a match in the
Processes & Methodologies category
18 55 23
As % of all contract IT jobs located in Welwyn Garden City 50.00% 74.32% 82.14%
Number of daily rates quoted 4 37 9
Average daily rate £375 £400 £400
Average daily rate % change year-on-year
-6.25% -
UK excluding London average daily rate £393 £375 £363
% change year-on-year
+4.66% +3.44%
Number of hourly rates quoted 0 0 1
Average hourly rate - - £14.50
UK excluding London average hourly rate £31.44 £30.00 £32.00
% change year-on-year
+4.80% -6.25%

TDD
Jobs Demand Trend in Welwyn Garden City

This chart provides a 3-month moving total of IT contractor jobs citing TDD across the Welwyn Garden City region as a proportion of the total demand within the Processes & Methodologies category.

TDD Jobs Demand Trend in Welwyn Garden City

TDD
Daily Rate Trend in Welwyn Garden City

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing TDD across the Welwyn Garden City region.

TDD Daily Rate Trend in Welwyn Garden City