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 contractor rates offered in IT contracts that have cited TDD over the 3 months to 28 June 2016 with a comparison to the same period over 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.

3 months to
28 Jun 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 16 22 -
Rank change year-on-year
+6 -
Contract jobs citing TDD 1 1 0
As % of all contract IT jobs located in Welwyn Garden City 1.52% 0.80% -
As % of the Processes & Methodologies category 1.92% 0.96% -
Number of daily rates quoted 1 1 0
Median daily rate £430 £550 -
Median daily rate % change year-on-year
-21.81% -
UK excluding London median daily rate £413 £375 £375
% change year-on-year
+10.00% -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £43.75 £59.50
% change year-on-year
-8.57% -26.47%
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
52 104 43
As % of all contract IT jobs located in Welwyn Garden City 78.79% 83.20% 71.67%
Number of daily rates quoted 23 52 32
Median daily rate £413 £324 £325
Median daily rate % change year-on-year
+27.28% -0.28%
90% offered a daily rate of more than £288 £273 £110
10% offered a daily rate of more than £430 £406 £425
UK excluding London median daily rate £400 £385 £375
% change year-on-year
+3.89% +2.66%
Number of hourly rates quoted 4 1 0
Median hourly rate £18.25 £47.50 -
Median hourly rate % change year-on-year
-61.57% -
UK excluding London median hourly rate £28.50 £30.00 £30.00
% change year-on-year
-5.00% -

TDD
Jobs Demand Trend in Welwyn Garden City

The demand trend of contract jobs across the Welwyn Garden City region citing TDD as a proportion of all IT contracts with a match in 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

TDD
Top 30 Related IT Skills in Welwyn Garden City

For the 6 months to 28 June 2016, 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 Welwyn Garden City region with a requirement for TDD.

1 1 (50.00%) C#
1 1 (50.00%) Java
1 1 (50.00%) SQL
1 1 (50.00%) .NET
1 1 (50.00%) OOP
1 1 (50.00%) E-Commerce
1 1 (50.00%) SOA
1 1 (50.00%) Agile Software Development
1 1 (50.00%) NUnit
1 1 (50.00%) CruiseControl
1 1 (50.00%) Penetration Testing
1 1 (50.00%) Spring
1 1 (50.00%) Software Engineering
1 1 (50.00%) FitNesse
1 1 (50.00%) Unit Testing
1 1 (50.00%) Continuous Integration
1 1 (50.00%) PowerShell
1 1 (50.00%) OWASP
1 1 (50.00%) TeamCity
1 1 (50.00%) Git (software)
1 1 (50.00%) Team Foundation Server
1 1 (50.00%) Domain-Driven Design
1 1 (50.00%) Microsoft Azure
1 1 (50.00%) Amazon AWS
1 1 (50.00%) Inversion of Control
1 1 (50.00%) MSTest
1 1 (50.00%) NoSQL
1 1 (50.00%) Splunk
1 1 (50.00%) SpecFlow
1 1 (50.00%) Couchbase

TDD
Top Related IT Skills in Welwyn Garden City 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 (50.00%) Amazon AWS
1 1 (50.00%) Microsoft Azure
Database & Business Intelligence
1 1 (50.00%) Couchbase
1 1 (50.00%) NoSQL
Development Applications
1 1 (50.00%) CruiseControl
1 1 (50.00%) FitNesse
1 1 (50.00%) Git (software)
1 1 (50.00%) Jenkins
1 1 (50.00%) MSTest
1 1 (50.00%) NUnit
1 1 (50.00%) SpecFlow
1 1 (50.00%) Team Foundation Server
1 1 (50.00%) TeamCity
Job Titles
1 1 (50.00%) .NET Software Engineer
1 1 (50.00%) AWS Developer
1 1 (50.00%) C# Software Engineer
1 1 (50.00%) Developer
1 1 (50.00%) E-Commerce Developer
1 1 (50.00%) Java Developer
1 1 (50.00%) Java E-Commerce Developer
1 1 (50.00%) NoSQL Developer
1 1 (50.00%) Software Engineer
Libraries, Frameworks & Software Standards
1 1 (50.00%) .NET
1 1 (50.00%) Spring
Miscellaneous
1 1 (50.00%) Inversion of Control
Processes & Methodologies
1 1 (50.00%) Agile Software Development
1 1 (50.00%) Continuous Integration
1 1 (50.00%) Domain-Driven Design
1 1 (50.00%) E-Commerce
1 1 (50.00%) Mentoring
1 1 (50.00%) OOP
1 1 (50.00%) OWASP
1 1 (50.00%) Penetration Testing
1 1 (50.00%) SOA
1 1 (50.00%) Software Engineering
1 1 (50.00%) SOLID
1 1 (50.00%) Unit Testing
Programming Languages
1 1 (50.00%) C#
1 1 (50.00%) Java
1 1 (50.00%) PowerShell
1 1 (50.00%) SQL
Vendors
1 1 (50.00%) Splunk