The first table below looks at the prevalence of the term Inversion of Control in IT contracts advertised for the City of London region. Included is a guide to the average contractor rates offered in IT contracts that have cited Inversion of Control over the 3 months to 16 April 2014 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all terms in our Miscellaneous category for the City of London region.

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
16 Apr 2014
Same period 2013 Same period 2012
Inversion of Control (IoC)
Rank 206 193 214
Rank change year-on-year
-13 +21
Contract jobs citing Inversion of Control 9 12 7
As % of all contract IT jobs located in the City of London 0.14% 0.19% 0.086%
As % of the Miscellaneous category 0.41% 0.61% 0.26%
Number of daily rates quoted 6 11 7
Average daily rate £375 £500 £520
Average daily rate % change year-on-year
-25.00% -3.84%
UK excluding London average daily rate £388 £300 £350
% change year-on-year
+29.16% -14.28%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -
Miscellaneous Category
City of London
Contract IT job ads with a match in the
Miscellaneous category
2174 1975 2667
As % of all contract IT jobs located in the City of London 32.81% 31.30% 32.94%
Number of daily rates quoted 1624 1461 1990
Average daily rate £500 £475 £500
Average daily rate % change year-on-year
+5.26% -5.00%
90% offered a daily rate of more than £290 £300 £300
10% offered a daily rate of more than £675 £625 £650
UK excluding London average daily rate £350 £345 £348
% change year-on-year
+1.44% -0.71%
Number of hourly rates quoted 34 55 81
Average hourly rate £22.50 £22.00 £22.00
Average hourly rate % change year-on-year
+2.27% -
90% offered a hourly rate of more than £11.50 £15.75 £12.50
10% offered a hourly rate of more than £41.00 £135.00 £46.20
UK excluding London average hourly rate £17.50 £22.50 £25.00
% change year-on-year
-22.22% -10.00%
Inversion of Control
London

Inversion of Control
Jobs Demand Trend in the City of London

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

Inversion of Control Jobs Demand Trend in the City of London

Inversion of Control
Daily Rate Trend in the City of London

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

Inversion of Control Daily Rate Trend in the City of London

Inversion of Control
Daily Rate Histogram in the City of London

This chart provides a histogram of daily rates quoted in contract IT jobs citing Inversion of Control across the City of London region over the 3 months to 16 April 2014.

Inversion of Control Daily Rate Histogram in the City of London

Inversion of Control
Top 30 Related IT Skills in the City of London

For the 6 months to 16 April 2014, IT contractor jobs across the City of London region 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 15 (88.24%) TDD
2 9 (52.94%) Scrum
2 9 (52.94%) .NET
2 9 (52.94%) Agile Software Development
3 8 (47.06%) HTML5
3 8 (47.06%) HTML
3 8 (47.06%) Java
4 7 (41.18%) JavaScript
5 6 (35.29%) MVC
5 6 (35.29%) .NET Framework
6 5 (29.41%) Analytics
6 5 (29.41%) Dependency Injection
6 5 (29.41%) Team Foundation Server
6 5 (29.41%) Microsoft
6 5 (29.41%) C#
6 5 (29.41%) SQL
6 5 (29.41%) SQL Server
7 4 (23.53%) ASP.NET
7 4 (23.53%) CSS
7 4 (23.53%) Servlets
7 4 (23.53%) XML
7 4 (23.53%) Tomcat
7 4 (23.53%) E-Commerce
7 4 (23.53%) Foreign Exchange (FX)
7 4 (23.53%) Finance
7 4 (23.53%) NUnit
7 4 (23.53%) Lucene
7 4 (23.53%) Spring
7 4 (23.53%) Apache Solr
7 4 (23.53%) ASP.NET MVC

Inversion of Control
Top Related IT Skills in the City of London by Category

For the 6 months to 16 April 2014, IT contractor jobs across the City of London region 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 4 (23.53%) Tomcat
1 4 (23.53%) Apache Solr
2 3 (17.65%) WebLogic Portal
2 3 (17.65%) WebLogic
3 1 (5.88%) Mule
3 1 (5.88%) TIBCO EMS
Communications & Networking
1 3 (17.65%) HTTP
1 3 (17.65%) SSL
2 1 (5.88%) Internet
Database & Business Intelligence
1 5 (29.41%) SQL Server
2 4 (23.53%) SQL Server 2005
2 4 (23.53%) SQL Server 2008
3 3 (17.65%) Relational Database
4 1 (5.88%) MongoDB
4 1 (5.88%) NoSQL
4 1 (5.88%) Hazelcast
4 1 (5.88%) MySQL
4 1 (5.88%) OLAP
Development Applications
1 5 (29.41%) Team Foundation Server
2 4 (23.53%) NUnit
2 4 (23.53%) Rhino Mocks
2 4 (23.53%) Cucumber
3 3 (17.65%) Selenium
3 3 (17.65%) Maven
4 2 (11.76%) Git (software)
5 1 (5.88%) Subversion
5 1 (5.88%) Spring Roo
5 1 (5.88%) Jenkins
5 1 (5.88%) JUnit
General
1 4 (23.53%) Finance
2 1 (5.88%) Front Office
2 1 (5.88%) Legal
2 1 (5.88%) Banking
Job Titles
1 14 (82.35%) Developer
2 4 (23.53%) .NET Developer
2 4 (23.53%) C# Developer
2 4 (23.53%) ASP.NET Developer
2 4 (23.53%) WPF Developer
3 3 (17.65%) Java Engineer
3 3 (17.65%) Java Developer
3 3 (17.65%) Senior Developer
4 2 (11.76%) Agile .NET Developer
4 2 (11.76%) JavaScript Developer
5 1 (5.88%) C# ASP.NET Developer
5 1 (5.88%) C# .NET Developer
5 1 (5.88%) Web Developer
5 1 (5.88%) Front Office Developer
5 1 (5.88%) Senior C# Developer
5 1 (5.88%) Senior Web Developer
Libraries, Frameworks & Software Standards
1 9 (52.94%) .NET
2 8 (47.06%) HTML5
2 8 (47.06%) HTML
3 6 (35.29%) .NET Framework
4 4 (23.53%) ASP.NET
4 4 (23.53%) CSS
4 4 (23.53%) Servlets
4 4 (23.53%) XML
4 4 (23.53%) Lucene
4 4 (23.53%) Spring
4 4 (23.53%) ASP.NET MVC
4 4 (23.53%) Castle Windsor
4 4 (23.53%) REST
4 4 (23.53%) CSS3
4 4 (23.53%) Java EE
4 4 (23.53%) JSON
4 4 (23.53%) NHibernate
4 4 (23.53%) WPF
4 4 (23.53%) jQuery
5 3 (17.65%) Grails
Miscellaneous
1 4 (23.53%) Foreign Exchange (FX)
2 3 (17.65%) Fixed Income
3 2 (11.76%) W3C
4 1 (5.88%) Computer Science
4 1 (5.88%) Digital Media
Operating Systems
1 1 (5.88%) Windows
Processes & Methodologies
1 15 (88.24%) TDD
2 9 (52.94%) Scrum
2 9 (52.94%) Agile Software Development
3 6 (35.29%) MVC
4 5 (29.41%) Analytics
4 5 (29.41%) Dependency Injection
5 4 (23.53%) E-Commerce
5 4 (23.53%) MVVM
5 4 (23.53%) Unit Testing
5 4 (23.53%) Continuous Integration
6 3 (17.65%) Kanban
6 3 (17.65%) Test Scripting
6 3 (17.65%) Load Balancing
6 3 (17.65%) BDD
6 3 (17.65%) SOA
6 3 (17.65%) OO
7 1 (5.88%) Multithreading
7 1 (5.88%) Electronic Trading
7 1 (5.88%) Web Application Development
7 1 (5.88%) Software Engineering
Programming Languages
1 8 (47.06%) Java
2 7 (41.18%) JavaScript
3 5 (29.41%) C#
3 5 (29.41%) SQL
4 4 (23.53%) Ruby
4 4 (23.53%) Groovy
5 3 (17.65%) Python
5 3 (17.65%) PHP
6 1 (5.88%) PL/SQL
Qualifications
1 1 (5.88%) Degree
Quality Assurance & Compliance
1 1 (5.88%) PCI DSS
Systems Management
1 1 (5.88%) Opscode Chef
Vendors
1 5 (29.41%) Microsoft
2 4 (23.53%) Telerik
2 4 (23.53%) Google
3 3 (17.65%) JBoss
4 1 (5.88%) Elastic Path
4 1 (5.88%) TIBCO
4 1 (5.88%) Oracle