The table below looks at the prevalence of the term Inversion of Control in IT contracts advertised across the UK. Included is a guide to the average contractor rates offered in IT contracts that have cited Inversion of Control over the 3 months to 19 September 2014 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
19 Sep 2014
Same period 2013 Same period 2012
Inversion of Control (IoC)
Rank 539 516 532
Rank change year-on-year
-23 +16
Contract jobs citing Inversion of Control 73 70 72
As % of all contract IT jobs located in the UK 0.13% 0.13% 0.12%
As % of the Miscellaneous category 0.42% 0.43% 0.42%
Number of daily rates quoted 56 59 55
Average daily rate
Keep up to 90%
of your Daily Rate
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£425 £435 £361
Average daily rate % change year-on-year
-2.29% +20.41%
90% offered a daily rate of more than £325 £325 £275
10% offered a daily rate of more than £450 £600 £575
UK excluding London average daily rate £355 £388 £309
% change year-on-year
-8.38% +25.40%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -

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

Miscellaneous Category
UK
Contract IT job ads with a match in the
Miscellaneous category
17586 16390 17257
As % of all contract IT jobs located in the UK 30.53% 31.06% 29.93%
Number of daily rates quoted 10697 10107 9986
Average daily rate £400 £413 £400
Average daily rate % change year-on-year
-3.03% +3.12%
90% offered a daily rate of more than £235 £243 £250
10% offered a daily rate of more than £600 £600 £600
UK excluding London average daily rate £350 £350 £345
% change year-on-year
- +1.44%
Number of hourly rates quoted 732 670 874
Average hourly rate £18.73 £18.00 £25.00
Average hourly rate % change year-on-year
+4.02% -28.00%
90% offered a hourly rate of more than £12.00 £12.42 £12.00
10% offered a hourly rate of more than £43.00 £42.50 £45.00
UK excluding London average hourly rate £18.90 £17.50 £26.00
% change year-on-year
+8.00% -32.69%

Inversion of Control
Jobs Demand Trend

This chart provides the 3-month moving total of IT contractor jobs citing Inversion of Control within the UK as a proportion of the total demand within the Miscellaneous category.

Inversion of Control Jobs Demand Trend in the UK

Inversion of Control
Daily Rate Trend

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

Inversion of Control Daily Rate Trend in the UK

Inversion of Control
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing Inversion of Control within the UK over the 3 months to 19 September 2014.

Inversion of Control Daily Rate Histogram in the UK

Inversion of Control
Hourly Rate Trend

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing Inversion of Control within the UK.

Inversion of Control Hourly Rate Trend in the UK

Inversion of Control
Top 30 Contract Locations

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing Inversion of Control within the UK over the 3 months to 19 September 2014. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -11 66 £425 -2.29% 56
London +7 47 £425 -2.29% 13
South East +16 17 £425 +6.25% 12
Reading +22 11 £425 +6.25% 2
Berkshire +15 11 £425 +6.25% 3
City of London +23 7 £458 +29.69% 5
Scotland -11 3 £350 - 1
Hampshire - 3 £325 -
Glasgow - 3 £350 - 1
Basingstoke - 2 £325 -
West Sussex - 2 £350 -
Cambridgeshire +3 1 - - 2
Cambridge -6 1 - - 2
East of England -21 1 - - 4
Wales - 1 £325 - 1
South Wales - 1 £325 - 1
Cardiff - 1 £325 - 1
Chertsey - - - -
Chester - - - - 1
Cobham - - - - 1
Coventry - - - - 2
Daventry - - - - 1
Edinburgh - - - -
Exeter - - - -
Bedford - - - - 1
Bicester - - - -
Birmingham - - - -
Bracknell - - - - 1
Brighton - - - - 2
Bristol - - - - 2

Inversion of Control
Top 30 Related IT Skills

For the 6 months to 19 September 2014, IT contractor jobs within the UK citing Inversion of Control also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited Inversion of Control.

1 95 (75.40%) .NET
2 93 (73.81%) C#
3 88 (69.84%) MVC
4 86 (68.25%) TDD
5 82 (65.08%) Agile Software Development
6 58 (46.03%) Microsoft
7 56 (44.44%) HTML
7 56 (44.44%) JavaScript
7 56 (44.44%) CSS
8 55 (43.65%) ASP.NET
9 53 (42.06%) jQuery
10 52 (41.27%) ASP.NET MVC
11 48 (38.10%) Web Services
12 42 (33.33%) OO
13 41 (32.54%) HTML5
14 40 (31.75%) SQL Server
14 40 (31.75%) WCF
15 39 (30.95%) .NET Framework
16 38 (30.16%) Ajax
16 38 (30.16%) BDD
16 38 (30.16%) KnockoutJS
17 36 (28.57%) MS Excel
18 34 (26.98%) Dependency Injection
19 32 (25.40%) ADO.NET Entity Framework
20 31 (24.60%) SQL
21 28 (22.22%) IIS
21 28 (22.22%) Team Foundation Server
22 27 (21.43%) ASP.NET Web API
23 26 (20.63%) WPF
24 25 (19.84%) NUnit

Inversion of Control
Top Related IT Skills by Category

For the 6 months to 19 September 2014, IT contractor jobs within the UK citing Inversion of Control also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited Inversion of Control. Up to 20 skills are shown per category.

Application Platforms
1 28 (22.22%) IIS
2 10 (7.94%) Node.js
3 6 (4.76%) Apache
4 5 (3.97%) SharePoint
5 3 (2.38%) CMS
5 3 (2.38%) TIBCO EMS
6 2 (1.59%) SharePoint 2010
6 2 (1.59%) GlassFish
6 2 (1.59%) WebSphere Process Server
6 2 (1.59%) WebSphere
6 2 (1.59%) WebSphere Application Server
6 2 (1.59%) WebLogic
6 2 (1.59%) Tomcat
6 2 (1.59%) WebLogic Portal
6 2 (1.59%) WebLogic Integration
7 1 (0.79%) Mule
7 1 (0.79%) Umbraco
7 1 (0.79%) Oracle Coherence
7 1 (0.79%) Apache Solr
7 1 (0.79%) Sitefinity
Applications
1 36 (28.57%) MS Excel
Business Applications
1 3 (2.38%) SAP Oil and Gas
2 2 (1.59%) Markit EDM
2 2 (1.59%) Oracle BPM
Cloud Services
1 11 (8.73%) Amazon EC2
1 11 (8.73%) Microsoft Azure
2 9 (7.14%) PaaS
3 3 (2.38%) SaaS
4 2 (1.59%) Amazon SQS
4 2 (1.59%) Amazon AWS
4 2 (1.59%) GitHub
Communications & Networking
1 4 (3.17%) HTTP
2 3 (2.38%) TCP/IP
3 1 (0.79%) Internet
3 1 (0.79%) FTP
Database & Business Intelligence
1 40 (31.75%) SQL Server
2 10 (7.94%) SQL Server 2008
3 8 (6.35%) Oracle Database
4 5 (3.97%) Relational Database
4 5 (3.97%) SQL Server 2012
5 3 (2.38%) PostgreSQL
5 3 (2.38%) RDBMS
5 3 (2.38%) SQL Server Integration Services
5 3 (2.38%) SQL Server 2005
5 3 (2.38%) MongoDB
5 3 (2.38%) NoSQL
6 2 (1.59%) SimpleDB
6 2 (1.59%) Big Data
6 2 (1.59%) Couchbase
6 2 (1.59%) QlikView
6 2 (1.59%) SQL Server Reporting Services
6 2 (1.59%) MySQL
7 1 (0.79%) Data Warehouse
7 1 (0.79%) DB2
7 1 (0.79%) Sybase ASE
Development Applications
1 28 (22.22%) Team Foundation Server
2 25 (19.84%) NUnit
3 13 (10.32%) MSTest
4 12 (9.52%) Moq
5 8 (6.35%) Jenkins
6 7 (5.56%) Visual Studio
6 7 (5.56%) Subversion
6 7 (5.56%) Maven
6 7 (5.56%) Jasmine
7 6 (4.76%) Rhino Mocks
7 6 (4.76%) Grunt
7 6 (4.76%) Bower
7 6 (4.76%) Karma Test Runner
8 5 (3.97%) CruiseControl
9 4 (3.17%) Hudson
9 4 (3.17%) Git (software)
10 3 (2.38%) JIRA
10 3 (2.38%) ReSharper
10 3 (2.38%) SpecFlow
10 3 (2.38%) Build Forge
General
1 16 (12.70%) Finance
2 6 (4.76%) Marketing
3 4 (3.17%) Electronics
4 3 (2.38%) Telecoms
4 3 (2.38%) Front Office
4 3 (2.38%) Manufacturing
5 2 (1.59%) Banking
5 2 (1.59%) Investment Banking
5 2 (1.59%) Publishing
6 1 (0.79%) Games
6 1 (0.79%) Advertising
6 1 (0.79%) Financial Institution
6 1 (0.79%) Local Government
6 1 (0.79%) Retail
Job Titles
1 108 (85.71%) Developer
2 58 (46.03%) .NET Developer
3 30 (23.81%) Senior Developer
4 28 (22.22%) Agile .NET Developer
5 26 (20.63%) C# Developer
6 25 (19.84%) Senior .NET Developer
7 16 (12.70%) C# .NET Developer
8 6 (4.76%) Android Developer
8 6 (4.76%) Agile C# Developer
8 6 (4.76%) JavaScript Developer
8 6 (4.76%) C++ Developer
8 6 (4.76%) ASP.NET Developer
8 6 (4.76%) Web Developer
8 6 (4.76%) Architect
9 4 (3.17%) WPF Developer
9 4 (3.17%) C# ASP.NET Developer
9 4 (3.17%) Java Developer
9 4 (3.17%) Microsoft Developer
9 4 (3.17%) Software Developer
9 4 (3.17%) Technical Architect
Libraries, Frameworks & Software Standards
1 95 (75.40%) .NET
2 56 (44.44%) HTML
2 56 (44.44%) CSS
3 55 (43.65%) ASP.NET
4 53 (42.06%) jQuery
5 52 (41.27%) ASP.NET MVC
6 48 (38.10%) Web Services
7 41 (32.54%) HTML5
8 40 (31.75%) WCF
9 39 (30.95%) .NET Framework
10 38 (30.16%) Ajax
10 38 (30.16%) KnockoutJS
11 32 (25.40%) ADO.NET Entity Framework
12 27 (21.43%) ASP.NET Web API
13 26 (20.63%) WPF
14 24 (19.05%) Backbone.js
15 23 (18.25%) Underscore.js
15 23 (18.25%) XML
16 18 (14.29%) Unity DI Container
17 16 (12.70%) NHibernate
Miscellaneous
1 7 (5.56%) Mobile App
2 6 (4.76%) Visualisation
2 6 (4.76%) Derivative
3 5 (3.97%) N-Tier
4 3 (2.38%) DTV
4 3 (2.38%) Computer Science
4 3 (2.38%) Blog
4 3 (2.38%) User Experience
4 3 (2.38%) Xbox
5 2 (1.59%) Enterprise Software
5 2 (1.59%) Analytical Skills
5 2 (1.59%) DataPower
5 2 (1.59%) Equities
5 2 (1.59%) Foreign Exchange (FX)
5 2 (1.59%) GIS
5 2 (1.59%) Fixed Income
5 2 (1.59%) Clustering
6 1 (0.79%) NHS
6 1 (0.79%) Client/Server
6 1 (0.79%) PKI
Operating Systems
1 13 (10.32%) Windows
2 7 (5.56%) Android
3 6 (4.76%) Windows Server 2008
3 6 (4.76%) Windows Server 2003
4 5 (3.97%) Windows XP
4 5 (3.97%) Windows 7
5 4 (3.17%) Linux
6 3 (2.38%) Apple iOS
7 2 (1.59%) UNIX
8 1 (0.79%) Red Hat Enterprise Linux
Processes & Methodologies
1 88 (69.84%) MVC
2 86 (68.25%) TDD
3 82 (65.08%) Agile Software Development
4 42 (33.33%) OO
5 38 (30.16%) BDD
6 34 (26.98%) Dependency Injection
7 25 (19.84%) Unit Testing
8 24 (19.05%) Scrum
9 16 (12.70%) MVVM
10 13 (10.32%) Web Development
11 12 (9.52%) Software Engineering
12 9 (7.14%) OOP
12 9 (7.14%) Continuous Integration
13 7 (5.56%) Workflow
13 7 (5.56%) Android Development
13 7 (5.56%) Analytics
14 6 (4.76%) Integration Testing
14 6 (4.76%) E-Commerce
14 6 (4.76%) SOA
15 5 (3.97%) Investment Management
Programming Languages
1 93 (73.81%) C#
2 56 (44.44%) JavaScript
3 31 (24.60%) SQL
4 16 (12.70%) Java
5 10 (7.94%) PL/SQL
6 9 (7.14%) XAML
7 7 (5.56%) C++
7 7 (5.56%) VB.NET
8 6 (4.76%) VC++
9 5 (3.97%) VBA
10 4 (3.17%) PowerShell
10 4 (3.17%) T-SQL
11 3 (2.38%) XQuery
11 3 (2.38%) Python
11 3 (2.38%) Bash Shell
12 2 (1.59%) XPath
12 2 (1.59%) Ruby
13 1 (0.79%) Shell Script
13 1 (0.79%) MATLAB
13 1 (0.79%) C
Qualifications
1 7 (5.56%) Degree
2 4 (3.17%) Security Cleared
3 2 (1.59%) SC Cleared
3 2 (1.59%) Microsoft Certification
4 1 (0.79%) MCP
4 1 (0.79%) PhD
4 1 (0.79%) DV Cleared
Quality Assurance & Compliance
1 2 (1.59%) QA
2 1 (0.79%) SLA
System Software
1 2 (1.59%) Active Directory
Vendors
1 58 (46.03%) Microsoft
2 17 (13.49%) Oracle
3 9 (7.14%) Sybase
3 9 (7.14%) Telerik
4 5 (3.97%) Twitter
5 4 (3.17%) TIBCO
6 3 (2.38%) JBoss
6 3 (2.38%) SAP
6 3 (2.38%) Google
7 2 (1.59%) DevExpress
7 2 (1.59%) Kony
7 2 (1.59%) Syncfusion
7 2 (1.59%) Sitecore
7 2 (1.59%) Yahoo!
7 2 (1.59%) Red Hat
7 2 (1.59%) IBM
8 1 (0.79%) FatWire
8 1 (0.79%) Fidessa
8 1 (0.79%) Murex
8 1 (0.79%) Bloomberg
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