The table below looks at the prevalence of the term Inversion of Control in IT contracts advertised for the Hertfordshire region. Included is a guide to the contractor rates offered in IT contracts that have cited Inversion of Control over the 3 months to 27 May 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
27 May 2016
Same period 2015 Same period 2014
Inversion of Control (IoC)
Rank - - -
Contract jobs citing Inversion of Control 0 0 0
As % of all contract IT jobs located in Hertfordshire - - -
As % of the Miscellaneous category - - -
Number of daily rates quoted 0 0 0
Median daily rate - - -
UK excluding London median daily rate £375 £331 £350
% change year-on-year
+13.20% -5.35%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -
Inversion of Control
East of England

The following table is for comparison with the above and provides statistics for the entire Miscellaneous category in contract jobs advertised in the Hertfordshire region.

Miscellaneous Category
Hertfordshire
Contract IT job ads with a match in the
Miscellaneous category
228 278 205
As % of all contract IT jobs located in Hertfordshire 33.43% 36.92% 30.33%
Number of daily rates quoted 105 136 101
Median daily rate £400 £375 £375
Median daily rate % change year-on-year
+6.66% -
90% offered a daily rate of more than £245 £246 £190
10% offered a daily rate of more than £501 £493 £475
UK excluding London median daily rate £390 £375 £350
% change year-on-year
+4.00% +7.14%
Number of hourly rates quoted 10 26 14
Median hourly rate £16.00 £32.50 £34.75
Median hourly rate % change year-on-year
-50.76% -6.47%
90% offered a hourly rate of more than £10.21 £13.25 £17.50
10% offered a hourly rate of more than £24.50 £40.00 £37.05
UK excluding London median hourly rate £21.50 £18.00 £20.50
% change year-on-year
+19.44% -12.19%

Inversion of Control
Jobs Demand Trend in Hertfordshire

The demand trend of contract jobs across the Hertfordshire region citing Inversion of Control as a proportion of all IT contracts with a match in the Miscellaneous category.

Inversion of Control Jobs Demand Trend in Hertfordshire

Inversion of Control
Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing Inversion of Control across the Hertfordshire region.

Inversion of Control Daily Rate Trend in Hertfordshire

Inversion of Control
Top 24 Related IT Skills in Hertfordshire

For the 6 months to 27 May 2016, IT contractor jobs citing Inversion of Control 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 Hertfordshire region with a requirement for Inversion of Control.

1 2 (100.00%) C#
1 2 (100.00%) SQL
1 2 (100.00%) .NET
1 2 (100.00%) OOP
1 2 (100.00%) SOA
1 2 (100.00%) FitNesse
1 2 (100.00%) Continuous Integration
1 2 (100.00%) PowerShell
1 2 (100.00%) OWASP
1 2 (100.00%) TeamCity
1 2 (100.00%) Git (software)
1 2 (100.00%) Team Foundation Server
1 2 (100.00%) Domain-Driven Design
1 2 (100.00%) MSTest
1 2 (100.00%) Splunk
1 2 (100.00%) SpecFlow
1 2 (100.00%) Jenkins
1 2 (100.00%) Agile Software Development
1 2 (100.00%) TDD
1 2 (100.00%) NUnit
1 2 (100.00%) CruiseControl
1 2 (100.00%) Penetration Testing
1 2 (100.00%) Software Engineering
1 2 (100.00%) SOLID

Inversion of Control
Top Related IT Skills in Hertfordshire 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:

Development Applications
1 2 (100.00%) CruiseControl
1 2 (100.00%) FitNesse
1 2 (100.00%) Git (software)
1 2 (100.00%) Jenkins
1 2 (100.00%) MSTest
1 2 (100.00%) NUnit
1 2 (100.00%) SpecFlow
1 2 (100.00%) Team Foundation Server
1 2 (100.00%) TeamCity
Job Titles
1 1 (50.00%) .NET Developer
1 1 (50.00%) .NET Software Engineer
1 1 (50.00%) C# .NET Developer
1 1 (50.00%) C# Developer
1 1 (50.00%) C# Software Engineer
1 1 (50.00%) Developer
1 1 (50.00%) Software Engineer
Libraries, Frameworks & Software Standards
1 2 (100.00%) .NET
Processes & Methodologies
1 2 (100.00%) Agile Software Development
1 2 (100.00%) Continuous Integration
1 2 (100.00%) Domain-Driven Design
1 2 (100.00%) OOP
1 2 (100.00%) OWASP
1 2 (100.00%) Penetration Testing
1 2 (100.00%) SOA
1 2 (100.00%) Software Engineering
1 2 (100.00%) SOLID
1 2 (100.00%) TDD
Programming Languages
1 2 (100.00%) C#
1 2 (100.00%) PowerShell
1 2 (100.00%) SQL
Vendors
1 2 (100.00%) Splunk