The following table provides summary statistics for contract job vacancies advertised in the East of England with a requirement for Inversion of Control skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Inversion of Control over the 3 months to 28 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.

Inversion of Control (IoC)
England / East of England
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 129 128 -
Rank change year-on-year -1 -  
Contract jobs citing Inversion of Control 1 1 0
As % of all contract IT jobs advertised in the East of England 0.042% 0.039% -
As % of the Processes & Methodologies category 0.051% 0.049% -
Number of daily rates quoted 1 1 0
Median daily rate £338 £228 -
Median daily rate % change year-on-year +48.35% -  
UK excluding London median daily rate £345 £355 £325
% change year-on-year -2.81% +9.23%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Inversion of Control 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 the East of England with a requirement for process and methodology skills.

Contract Process & Methodology Skills
East of England
Contract job vacancies with a requirement for process and methodology skills 1979 2044 2420
As % of all contract IT job vacancies advertised in the East of England 83.78% 80.13% 80.00%
Number of daily rates quoted 1136 1177 1441
Median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25%  
90% offered a daily rate of more than £288 £260 £275
10% offered a daily rate of more than £575 £575 £525
UK excluding London median daily rate £415 £400 £385
% change year-on-year +3.75% +3.89%  
Number of hourly rates quoted 137 162 179
Median hourly rate £35.00 £31.00 £33.00
Median hourly rate % change year-on-year +12.90% -6.06%  
90% offered a hourly rate of more than £13.72 £16.50 £12.00
10% offered a hourly rate of more than £62.50 £47.00 £50.00
UK excluding London median hourly rate £34.75 £28.50 £30.00
% change year-on-year +21.92% -5.00%  

Inversion of Control
Job Vacancy Trend in the East of England

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

Job vacancy trend for Inversion of Control in the East of England

Inversion of Control
Contractor Daily Rate Trend in the East of England

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Inversion of Control in the East of England.

Contractor daily rate trend for Inversion of Control in the East of England

Inversion of Control
Contract Job Locations in the East of England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Inversion of Control within the East of England region over the 3 months to 28 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Cambridgeshire - 1 £338 - 2
Inversion of Control
England

For the 6 months to 28 June 2017, 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 East of England region with a requirement for Inversion of Control.

1 3 (100.00%) C#
2 2 (66.67%) SQL Server
2 2 (66.67%) Agile Software Development
2 2 (66.67%) TDD
2 2 (66.67%) MVC
2 2 (66.67%) .NET
2 2 (66.67%) WCF
2 2 (66.67%) WPF
2 2 (66.67%) Microsoft
3 1 (33.33%) Greenfield Project
3 1 (33.33%) KnockoutJS
3 1 (33.33%) SQL Server 2012
3 1 (33.33%) AngularJS
3 1 (33.33%) SDLC
3 1 (33.33%) Unit Testing
3 1 (33.33%) SQL Server 2008
3 1 (33.33%) Git (software)
3 1 (33.33%) RESTful
3 1 (33.33%) ASP.NET MVC
3 1 (33.33%) Software Architecture
3 1 (33.33%) MVVM
3 1 (33.33%) Moq
3 1 (33.33%) BDD
3 1 (33.33%) Oracle
3 1 (33.33%) JavaScript
3 1 (33.33%) SQL
3 1 (33.33%) Scrum
3 1 (33.33%) Banking
3 1 (33.33%) .NET Framework
3 1 (33.33%) ASP.NET

Inversion of Control
Co-occurring IT Skills in the East of England 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 2 (66.67%) SQL Server
2 1 (33.33%) SQL Server 2008
2 1 (33.33%) SQL Server 2012
Development Applications
1 1 (33.33%) Git (software)
1 1 (33.33%) Moq
General
1 1 (33.33%) Banking
Job Titles
1 3 (100.00%) C# Developer
1 3 (100.00%) Developer
2 2 (66.67%) C# WPF Developer
2 2 (66.67%) SQL Developer
2 2 (66.67%) WPF Developer
3 1 (33.33%) .NET Developer
3 1 (33.33%) ASP.NET MVC Developer
3 1 (33.33%) C# .NET Developer
3 1 (33.33%) C# WCF Developer
3 1 (33.33%) JavaScript Developer
3 1 (33.33%) SQL Server Developer
3 1 (33.33%) WCF Developer
Libraries, Frameworks & Software Standards
1 2 (66.67%) .NET
1 2 (66.67%) WCF
1 2 (66.67%) WPF
2 1 (33.33%) .NET Framework
2 1 (33.33%) AngularJS
2 1 (33.33%) ASP.NET
2 1 (33.33%) ASP.NET MVC
2 1 (33.33%) KnockoutJS
2 1 (33.33%) RESTful
Miscellaneous
1 1 (33.33%) Greenfield Project
Processes & Methodologies
1 2 (66.67%) Agile Software Development
1 2 (66.67%) MVC
1 2 (66.67%) TDD
2 1 (33.33%) BDD
2 1 (33.33%) MVVM
2 1 (33.33%) OO
2 1 (33.33%) Scrum
2 1 (33.33%) SDLC
2 1 (33.33%) Software Architecture
2 1 (33.33%) Unit Testing
Programming Languages
1 3 (100.00%) C#
2 1 (33.33%) JavaScript
2 1 (33.33%) SQL
Vendors
1 2 (66.67%) Microsoft
2 1 (33.33%) Oracle