The table below looks at the prevalence of the term Inversion of Control in IT jobs advertised for the City of London region. Included is a guide to the average salaries offered in IT jobs that have cited Inversion of Control over the 3 months to 31 July 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
31 Jul 2015
Same period 2014 Same period 2013
Inversion of Control (IoC)
Rank 306 310 307
Rank change year-on-year
+4 -3
Permanent jobs citing Inversion of Control 2 24 22
As % of all permanent IT jobs located in the City of London 0.019% 0.19% 0.18%
As % of the Miscellaneous category 0.043% 0.42% 0.37%
Number of salaries quoted 2 20 20
Average salary £55,000 £62,500 £59,000
Average salary % change year-on-year
-12.00% +5.93%
UK excluding London average salary £40,000 £42,500 £40,000
% change year-on-year
-5.88% +6.25%
Inversion of Control
London

The following table is for comparison with the above and provides statistics for the entire Miscellaneous category in permanent jobs advertised in the City of London region.

Miscellaneous Category
City of London
Permanent IT job ads with a match in the
Miscellaneous category
4617 5657 5964
As % of all permanent IT jobs located in the City of London 44.31% 45.69% 49.79%
Number of salaries quoted 3775 4598 5208
Average salary £57,500 £57,500 £57,500
90% offered a salary of more than £35,000 £34,000 £35,000
10% offered a salary of more than £85,000 £82,500 £82,500
UK excluding London average salary £40,000 £40,000 £40,000

Inversion of Control
Jobs Demand Trend in the City of London

This chart provides a 3-month moving total of permanent IT 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
Salary Trend in the City of London

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

Inversion of Control Salary Trend in the City of London

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

For the 6 months to 31 July 2015, IT 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 IT job ads sampled that cited Inversion of Control.

1 12 (85.71%) Agile Software Development
2 9 (64.29%) Unit Testing
2 9 (64.29%) Continuous Integration
3 8 (57.14%) TDD
4 7 (50.00%) Java
4 7 (50.00%) SQL
4 7 (50.00%) CSS
4 7 (50.00%) RESTful
4 7 (50.00%) Spring
4 7 (50.00%) jQuery
5 6 (42.86%) Software Engineering
5 6 (42.86%) JavaScript
5 6 (42.86%) C#
5 6 (42.86%) HTML
6 5 (35.71%) .NET
6 5 (35.71%) MVC
6 5 (35.71%) OO
6 5 (35.71%) Refactoring
7 4 (28.57%) Multithreading
7 4 (28.57%) Scrum
7 4 (28.57%) SQL Server
7 4 (28.57%) Web Services
8 3 (21.43%) UML
8 3 (21.43%) E-Commerce
8 3 (21.43%) N-Tier
8 3 (21.43%) ASP.NET
8 3 (21.43%) NUnit
8 3 (21.43%) Tomcat
8 3 (21.43%) Microsoft
8 3 (21.43%) Middleware

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

For the 6 months to 31 July 2015, IT 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 IT job ads sampled that cited Inversion of Control. Up to 20 skills are shown per category.

Application Platforms
1 3 (21.43%) Tomcat
2 1 (7.14%) CMS
2 1 (7.14%) GlassFish
2 1 (7.14%) Umbraco
2 1 (7.14%) WebLogic
2 1 (7.14%) IIS
2 1 (7.14%) JBoss
Cloud Services
1 2 (14.29%) Microsoft Azure
1 2 (14.29%) Amazon AWS
Database & Business Intelligence
1 4 (28.57%) SQL Server
2 2 (14.29%) Hadoop
2 2 (14.29%) MongoDB
2 2 (14.29%) Apache Cassandra
2 2 (14.29%) NoSQL
2 2 (14.29%) MySQL
2 2 (14.29%) Aerospike
3 1 (7.14%) Oracle Database
3 1 (7.14%) Relational Database
3 1 (7.14%) RDBMS
3 1 (7.14%) SQL Server Reporting Services
3 1 (7.14%) SQL Server Integration Services
3 1 (7.14%) SQL Server Analysis Services
Development Applications
1 3 (21.43%) NUnit
1 3 (21.43%) Git (software)
1 3 (21.43%) MSTest
1 3 (21.43%) Rhino Mocks
1 3 (21.43%) Moq
2 2 (14.29%) Jenkins
3 1 (7.14%) Mockito
3 1 (7.14%) Cobertura
3 1 (7.14%) FindBugs
3 1 (7.14%) CruiseControl
3 1 (7.14%) Subversion
3 1 (7.14%) Checkstyle
3 1 (7.14%) jMock
3 1 (7.14%) TeamCity
3 1 (7.14%) Ant
3 1 (7.14%) JUnit
3 1 (7.14%) Visual Studio
3 1 (7.14%) Eclipse
3 1 (7.14%) IntelliJ
General
1 2 (14.29%) Finance
1 2 (14.29%) Advertising
2 1 (7.14%) Banking
2 1 (7.14%) Law
2 1 (7.14%) Front Office
2 1 (7.14%) Telecoms
Job Titles
1 11 (78.57%) Developer
2 6 (42.86%) Java Developer
3 4 (28.57%) C# Developer
4 2 (14.29%) Lead Java Developer
4 2 (14.29%) Mid-Level Java Developer
4 2 (14.29%) Senior Developer
4 2 (14.29%) Lead Developer
4 2 (14.29%) Architect
4 2 (14.29%) Core Java Developer
5 1 (7.14%) Oracle Developer
5 1 (7.14%) .NET Developer
5 1 (7.14%) Technical Architect
5 1 (7.14%) Web Developer
5 1 (7.14%) Solutions Architect
5 1 (7.14%) Lead Solutions Architect
5 1 (7.14%) Java Web Developer
5 1 (7.14%) Lead Architect
5 1 (7.14%) ASP.NET Developer
5 1 (7.14%) Senior Oracle Developer
5 1 (7.14%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 7 (50.00%) CSS
1 7 (50.00%) Spring
1 7 (50.00%) RESTful
1 7 (50.00%) jQuery
2 6 (42.86%) HTML
3 5 (35.71%) .NET
4 4 (28.57%) Web Services
5 3 (21.43%) ASP.NET
5 3 (21.43%) Middleware
5 3 (21.43%) WCF
5 3 (21.43%) WPF
5 3 (21.43%) Unity DI Container
6 2 (14.29%) ASP.NET Web API
6 2 (14.29%) Apache Axis
6 2 (14.29%) Apache CXF
6 2 (14.29%) Castle Windsor
6 2 (14.29%) Ninject
6 2 (14.29%) Autofac
6 2 (14.29%) Kafka
6 2 (14.29%) ActiveMQ
Miscellaneous
1 3 (21.43%) N-Tier
2 2 (14.29%) PMI
3 1 (7.14%) Clustering
3 1 (7.14%) User Experience
Operating Systems
1 1 (7.14%) UNIX
Processes & Methodologies
1 12 (85.71%) Agile Software Development
2 9 (64.29%) Unit Testing
2 9 (64.29%) Continuous Integration
3 8 (57.14%) TDD
4 6 (42.86%) Software Engineering
5 5 (35.71%) OO
5 5 (35.71%) MVC
5 5 (35.71%) Refactoring
6 4 (28.57%) Multithreading
6 4 (28.57%) Scrum
7 3 (21.43%) UML
7 3 (21.43%) E-Commerce
7 3 (21.43%) User Acceptance Testing
7 3 (21.43%) Integration Testing
8 2 (14.29%) Contextual Advertising
8 2 (14.29%) Stress Testing
8 2 (14.29%) Greeks
8 2 (14.29%) MVVM
8 2 (14.29%) BDD
8 2 (14.29%) Progressive Enhancement
Programming Languages
1 7 (50.00%) Java
1 7 (50.00%) SQL
2 6 (42.86%) C#
2 6 (42.86%) JavaScript
3 1 (7.14%) Perl
3 1 (7.14%) PL/SQL
3 1 (7.14%) Shell Script
3 1 (7.14%) R
Qualifications
1 2 (14.29%) PMI Certification
2 1 (7.14%) MCP
Vendors
1 3 (21.43%) Microsoft
2 1 (7.14%) Atlassian
2 1 (7.14%) WorldPay
2 1 (7.14%) Oracle
2 1 (7.14%) IBM