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 20 October 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
20 Oct 2014
Same period 2013 Same period 2012
Inversion of Control (IoC)
Rank 524 520 516
Rank change year-on-year
-4 -4
Contract jobs citing Inversion of Control 105 61 63
As % of all contract IT jobs located in the UK 0.18% 0.12% 0.11%
As % of the Miscellaneous category 0.59% 0.37% 0.37%
Number of daily rates quoted 83 53 48
Average daily rate
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of your Daily Rate
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£425 £425 £360
Average daily rate % change year-on-year
- +18.05%
90% offered a daily rate of more than £326 £308 £262
10% offered a daily rate of more than £528 £600 £550
UK excluding London average daily rate £361 £400 £307
% change year-on-year
-9.87% +30.29%
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
17928 16602 17065
As % of all contract IT jobs located in the UK 30.77% 31.52% 30.47%
Number of daily rates quoted 11189 10381 9991
Average daily rate £413 £410 £413
Average daily rate % change year-on-year
+0.60% -0.60%
90% offered a daily rate of more than £238 £240 £250
10% offered a daily rate of more than £600 £600 £600
UK excluding London average daily rate £350 £350 £350
Number of hourly rates quoted 734 670 845
Average hourly rate £17.50 £18.00 £22.50
Average hourly rate % change year-on-year
-2.77% -20.00%
90% offered a hourly rate of more than £11.00 £12.00 £12.00
10% offered a hourly rate of more than £42.50 £40.00 £45.00
UK excluding London average hourly rate £17.50 £17.50 £22.50
% change year-on-year
- -22.22%

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 20 October 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 20 October 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 +12 98 £425 - 51
London +24 58 £425 - 10
South East +7 26 £350 -30.00% 20
Reading +28 15 £425 +21.42%
Berkshire +25 15 £425 +21.42% 2
West Midlands - 11 £525 - 4
City of London +21 8 £485 +24.35% 1
Coventry - 7 £550 - 1
Hampshire - 4 £338 - 1
Wales - 3 £300 -
South Wales - 3 £300 -
Buckinghamshire - 3 £361 - 2
Basingstoke - 3 £338 -
Cardiff - 3 £300 -
Milton Keynes - 3 £361 - 2
Scotland -7 2 £350 - 1
Glasgow -12 2 £350 -
East of England -26 2 £400 +3.22% 4
West Sussex - 2 £350 -
Docklands, London +16 1 £555 -6.72% 1
Cambridgeshire -4 1 - - 2
Kent -4 1 £300 -40.00% 12
Cambridge -5 1 - - 2
Bedfordshire - 1 £400 - 1
Basildon - - - - 1
Canterbury - - - - 1
Lincolnshire - - - -
Northamptonshire - - - - 1
Oxfordshire - - - -
South Yorkshire - - - -

Inversion of Control
Top 30 Related IT Skills

For the 6 months to 20 October 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.

1 107 (74.31%) .NET
2 104 (72.22%) C#
3 101 (70.14%) TDD
4 95 (65.97%) Agile Software Development
5 91 (63.19%) MVC
6 74 (51.39%) Microsoft
7 69 (47.92%) Web Services
8 61 (42.36%) JavaScript
9 60 (41.67%) CSS
10 58 (40.28%) ASP.NET
11 57 (39.58%) HTML
12 55 (38.19%) ASP.NET MVC
13 54 (37.50%) WCF
14 52 (36.11%) jQuery
15 50 (34.72%) BDD
16 48 (33.33%) .NET Framework
16 48 (33.33%) SQL Server
17 45 (31.25%) OO
18 43 (29.86%) Ajax
19 42 (29.17%) HTML5
20 40 (27.78%) KnockoutJS
21 39 (27.08%) MS Excel
21 39 (27.08%) SQL
22 38 (26.39%) ADO.NET Entity Framework
23 35 (24.31%) Dependency Injection
24 34 (23.61%) NUnit
25 30 (20.83%) Team Foundation Server
25 30 (20.83%) IIS
25 30 (20.83%) ASP.NET Web API
26 28 (19.44%) Scrum

Inversion of Control
Top Related IT Skills by Category

For the 6 months to 20 October 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 30 (20.83%) IIS
2 9 (6.25%) SharePoint
2 9 (6.25%) Node.js
3 6 (4.17%) Apache
4 4 (2.78%) BizTalk Server
5 3 (2.08%) JBoss
5 3 (2.08%) TIBCO EMS
5 3 (2.08%) Apache Solr
6 2 (1.39%) Sitecore CMS
6 2 (1.39%) GlassFish
6 2 (1.39%) Umbraco
6 2 (1.39%) Tomcat
6 2 (1.39%) WebSphere Process Server
6 2 (1.39%) WebSphere
6 2 (1.39%) WebSphere Application Server
6 2 (1.39%) WebLogic
6 2 (1.39%) WebLogic Portal
6 2 (1.39%) WebLogic Integration
7 1 (0.69%) CMS
7 1 (0.69%) Mule
Applications
1 39 (27.08%) MS Excel
Business Applications
1 11 (7.64%) Dynamics CRM
2 2 (1.39%) Oracle BPM
3 1 (0.69%) Markit EDM
3 1 (0.69%) SAP Oil and Gas
Cloud Services
1 22 (15.28%) Microsoft Azure
2 9 (6.25%) PaaS
2 9 (6.25%) Amazon EC2
3 2 (1.39%) Amazon SQS
3 2 (1.39%) GitHub
3 2 (1.39%) Amazon AWS
4 1 (0.69%) SaaS
Communications & Networking
1 4 (2.78%) HTTP
2 3 (2.08%) TCP/IP
3 1 (0.69%) Internet
3 1 (0.69%) FTP
Database & Business Intelligence
1 48 (33.33%) SQL Server
2 11 (7.64%) Oracle Database
3 8 (5.56%) SQL Server 2008
4 6 (4.17%) Relational Database
5 5 (3.47%) SQL Server 2012
6 4 (2.78%) SQL Server Integration Services
7 3 (2.08%) SQL Server Reporting Services
7 3 (2.08%) SQL Server Analysis Services
8 2 (1.39%) RDBMS
8 2 (1.39%) PostgreSQL
8 2 (1.39%) SimpleDB
9 1 (0.69%) MongoDB
9 1 (0.69%) NoSQL
9 1 (0.69%) Big Data
9 1 (0.69%) MarkLogic
9 1 (0.69%) Data Warehouse
9 1 (0.69%) Sybase ASE
9 1 (0.69%) SQL Server 2005
9 1 (0.69%) QlikView
9 1 (0.69%) Oracle Database 11g
Development Applications
1 34 (23.61%) NUnit
2 30 (20.83%) Team Foundation Server
3 27 (18.75%) MSTest
4 15 (10.42%) MSBuild
4 15 (10.42%) SpecFlow
4 15 (10.42%) ReSharper
5 14 (9.72%) StyleCop
6 12 (8.33%) NCover
6 12 (8.33%) NDepend
6 12 (8.33%) Moq
7 10 (6.94%) Visual Studio
8 8 (5.56%) Maven
9 7 (4.86%) Jasmine
9 7 (4.86%) Jenkins
10 6 (4.17%) Grunt
10 6 (4.17%) Karma Test Runner
10 6 (4.17%) Bower
10 6 (4.17%) NuGet
10 6 (4.17%) CruiseControl
10 6 (4.17%) TeamCity
General
1 25 (17.36%) Finance
2 5 (3.47%) Banking
2 5 (3.47%) Investment Banking
3 4 (2.78%) Marketing
3 4 (2.78%) Financial Institution
4 3 (2.08%) Front Office
5 2 (1.39%) Electronics
5 2 (1.39%) Publishing
6 1 (0.69%) Games
6 1 (0.69%) Manufacturing
6 1 (0.69%) Advertising
6 1 (0.69%) Telecoms
6 1 (0.69%) Local Government
Job Titles
1 116 (80.56%) Developer
2 57 (39.58%) .NET Developer
3 36 (25.00%) Senior Developer
4 31 (21.53%) C# Developer
5 29 (20.14%) Senior .NET Developer
6 28 (19.44%) Agile .NET Developer
7 16 (11.11%) C# .NET Developer
8 15 (10.42%) Architect
9 9 (6.25%) Web Developer
10 6 (4.17%) C++ Developer
10 6 (4.17%) Android Developer
10 6 (4.17%) JavaScript Developer
11 5 (3.47%) CRM Architect
11 5 (3.47%) WPF Developer
11 5 (3.47%) Software Developer
11 5 (3.47%) Technical Architect
11 5 (3.47%) ASP.NET Developer
11 5 (3.47%) Development Manager
12 4 (2.78%) Solutions Architect
12 4 (2.78%) Microsoft Developer
Libraries, Frameworks & Software Standards
1 107 (74.31%) .NET
2 69 (47.92%) Web Services
3 60 (41.67%) CSS
4 58 (40.28%) ASP.NET
5 57 (39.58%) HTML
6 55 (38.19%) ASP.NET MVC
7 54 (37.50%) WCF
8 52 (36.11%) jQuery
9 48 (33.33%) .NET Framework
10 43 (29.86%) Ajax
11 42 (29.17%) HTML5
12 40 (27.78%) KnockoutJS
13 38 (26.39%) ADO.NET Entity Framework
14 30 (20.83%) ASP.NET Web API
15 26 (18.06%) Backbone.js
16 25 (17.36%) Underscore.js
17 24 (16.67%) WPF
18 21 (14.58%) NHibernate
19 20 (13.89%) XML
19 20 (13.89%) Unity DI Container
Miscellaneous
1 11 (7.64%) Derivative
2 8 (5.56%) Mobile App
3 7 (4.86%) Enterprise Software
4 6 (4.17%) Visualisation
4 6 (4.17%) Open Source
4 6 (4.17%) N-Tier
5 5 (3.47%) Foreign Exchange (FX)
5 5 (3.47%) Equities
6 4 (2.78%) User Experience
7 3 (2.08%) Computer Science
7 3 (2.08%) Fixed Income
8 2 (1.39%) Clustering
8 2 (1.39%) GIS
8 2 (1.39%) Tandem
8 2 (1.39%) DataPower
8 2 (1.39%) Hedge funds
9 1 (0.69%) Digital Media
9 1 (0.69%) Xbox
9 1 (0.69%) Equity Derivative
9 1 (0.69%) Analytical Skills
Operating Systems
1 18 (12.50%) Windows
2 6 (4.17%) Windows Server 2003
2 6 (4.17%) Android
2 6 (4.17%) Windows Server 2008
3 5 (3.47%) UNIX
3 5 (3.47%) Windows XP
3 5 (3.47%) Windows 7
4 3 (2.08%) Apple iOS
4 3 (2.08%) Linux
5 1 (0.69%) Red Hat Enterprise Linux
Processes & Methodologies
1 101 (70.14%) TDD
2 95 (65.97%) Agile Software Development
3 91 (63.19%) MVC
4 50 (34.72%) BDD
5 45 (31.25%) OO
6 35 (24.31%) Dependency Injection
7 28 (19.44%) Scrum
8 19 (13.19%) Domain-Driven Design
9 18 (12.50%) MVVM
10 16 (11.11%) Unit Testing
11 14 (9.72%) ATDD
11 14 (9.72%) CRM
12 13 (9.03%) OOP
12 13 (9.03%) Continuous Integration
13 11 (7.64%) Software Engineering
14 10 (6.94%) Workflow
14 10 (6.94%) SOA
14 10 (6.94%) Web Development
15 8 (5.56%) Technical Architecture
16 7 (4.86%) Pair Programming
Programming Languages
1 104 (72.22%) C#
2 61 (42.36%) JavaScript
3 39 (27.08%) SQL
4 20 (13.89%) Java
5 16 (11.11%) PowerShell
6 14 (9.72%) PL/SQL
7 10 (6.94%) XAML
8 7 (4.86%) C++
9 6 (4.17%) VC++
10 5 (3.47%) Groovy
10 5 (3.47%) Scala
11 4 (2.78%) Shell Script
11 4 (2.78%) C
11 4 (2.78%) T-SQL
11 4 (2.78%) VBA
12 3 (2.08%) PHP
12 3 (2.08%) Python
12 3 (2.08%) XQuery
12 3 (2.08%) PHP5
12 3 (2.08%) Bash Shell
Qualifications
1 8 (5.56%) Degree
2 4 (2.78%) Security Cleared
3 3 (2.08%) SC Cleared
4 1 (0.69%) CTC Cleared
4 1 (0.69%) Microsoft Certification
Quality Assurance & Compliance
1 2 (1.39%) QA
2 1 (0.69%) SLA
System Software
1 1 (0.69%) Active Directory
Vendors
1 74 (51.39%) Microsoft
2 24 (16.67%) Oracle
3 9 (6.25%) Telerik
4 4 (2.78%) TIBCO
5 3 (2.08%) Google
5 3 (2.08%) Siebel
5 3 (2.08%) EPiServer
5 3 (2.08%) Sitecore
5 3 (2.08%) Red Gate
5 3 (2.08%) Twitter
6 2 (1.39%) Kony
6 2 (1.39%) DevExpress
6 2 (1.39%) IBM
6 2 (1.39%) Red Hat
6 2 (1.39%) Syncfusion
6 2 (1.39%) Yahoo!
6 2 (1.39%) Reuters
7 1 (0.69%) Bloomberg
7 1 (0.69%) Infragistics
7 1 (0.69%) FatWire
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