The table below looks at the prevalence of the term Inversion of Control in IT contracts advertised for the London region. Included is a guide to the contractor rates offered in IT contracts that have cited Inversion of Control over the 3 months to 23 January 2017 with a comparison to the same period over 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.

3 months to
23 Jan 2017
Same period 2016 Same period 2015
Inversion of Control (IoC)
England / London
Rank 369 376 376
Rank change year-on-year
+7 0
Contract jobs citing Inversion of Control 31 36 39
As % of all contract IT jobs located in London 0.16% 0.17% 0.19%
As % of the Miscellaneous category 0.44% 0.48% 0.51%
Number of daily rates quoted 23 29 26
Median daily rate £358 £425 £425
Median daily rate % change year-on-year
-15.88% -
90% offered a daily rate of more than £338 £316 £388
10% offered a daily rate of more than £520 £540 £505
UK excluding London median daily rate £350 £323 £350
% change year-on-year
+8.37% -7.85%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.50 - -

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

Miscellaneous Category
London
Contract IT job ads with a match in the
Miscellaneous category
7031 7446 7585
As % of all contract IT jobs located in London 36.07% 36.07% 35.99%
Number of daily rates quoted 4853 5157 5321
Median daily rate £500 £475 £450
Median daily rate % change year-on-year
+5.26% +5.55%
90% offered a daily rate of more than £313 £275 £275
10% offered a daily rate of more than £650 £650 £625
UK excluding London median daily rate £390 £375 £365
% change year-on-year
+4.00% +2.73%
Number of hourly rates quoted 110 138 153
Median hourly rate £27.50 £22.06 £18.00
Median hourly rate % change year-on-year
+24.67% +22.54%
90% offered a hourly rate of more than £14.02 £13.00 £13.25
10% offered a hourly rate of more than £55.00 £42.50 £37.00
UK excluding London median hourly rate £19.00 £21.50 £17.50
% change year-on-year
-11.62% +22.85%

Inversion of Control
Jobs Demand Trend in London

The demand trend of contract jobs across the London region citing Inversion of Control as a proportion of all IT contracts with a match in the Miscellaneous category.

Inversion of Control Jobs Demand Trend in London

Inversion of Control
Daily Rate Trend in London

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

Inversion of Control Daily Rate Trend in London

Inversion of Control
Daily Rate Histogram in London

This chart provides a histogram of daily rates quoted in contract IT jobs citing Inversion of Control across the London region over the 3 months to 23 January 2017.

Inversion of Control Daily Rate Histogram in London

Inversion of Control
Contract Job Locations in London

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 London region over the 3 months to 23 January 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
City of London -3 4 £345 +4.54% 3
Inversion of Control
England

Inversion of Control
Top 30 Related IT Skills in London

For the 6 months to 23 January 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 London region with a requirement for Inversion of Control.

1 47 (74.60%) .NET
2 44 (69.84%) Agile Software Development
3 40 (63.49%) C#
4 34 (53.97%) TDD
5 31 (49.21%) SQL
6 30 (47.62%) SQL Server
7 27 (42.86%) MVC
8 25 (39.68%) Finance
8 25 (39.68%) WCF
9 24 (38.10%) Dependency Injection
9 24 (38.10%) Scrum
10 21 (33.33%) JavaScript
10 21 (33.33%) REST
11 20 (31.75%) Java
11 20 (31.75%) T-SQL
11 20 (31.75%) Spring
12 18 (28.57%) ASP.NET
12 18 (28.57%) Team Foundation Server
12 18 (28.57%) JSON
12 18 (28.57%) SOLID
13 17 (26.98%) Web Services
14 16 (25.40%) HTML
14 16 (25.40%) Microsoft
14 16 (25.40%) BDD
14 16 (25.40%) AngularJS
15 15 (23.81%) RESTful
15 15 (23.81%) .NET Framework
15 15 (23.81%) Continuous Integration
15 15 (23.81%) Git (software)
15 15 (23.81%) CSS

Inversion of Control
Top Related IT Skills in London 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:

Application Platforms
1 6 (9.52%) IIS
2 5 (7.94%) Tomcat
3 4 (6.35%) Apache Spark
4 3 (4.76%) Jetty
4 3 (4.76%) MS Project Server
4 3 (4.76%) SharePoint
4 3 (4.76%) SharePoint 2010
4 3 (4.76%) SharePoint 2013
5 2 (3.17%) Apache
5 2 (3.17%) JBoss
5 2 (3.17%) NServiceBus
5 2 (3.17%) Oracle SOA Suite
5 2 (3.17%) WebLogic
5 2 (3.17%) WebSphere
5 2 (3.17%) WebSphere Application Server
6 1 (1.59%) BizTalk Server
6 1 (1.59%) GlassFish
6 1 (1.59%) WebLogic Integration
6 1 (1.59%) WebLogic Portal
6 1 (1.59%) WebSphere Process Server
Applications
1 4 (6.35%) MS Excel
2 3 (4.76%) MS Project
Business Applications
1 1 (1.59%) Oracle BPM
1 1 (1.59%) Unit4 Business World
Cloud Services
1 11 (17.46%) Microsoft Azure
2 5 (7.94%) Amazon AWS
3 1 (1.59%) IaaS
Communications & Networking
1 4 (6.35%) HTTP
2 2 (3.17%) Internet
3 1 (1.59%) SSL
Database & Business Intelligence
1 30 (47.62%) SQL Server
2 7 (11.11%) SQL Server Analysis Services
2 7 (11.11%) SQL Server Integration Services
2 7 (11.11%) SQL Server Reporting Services
3 6 (9.52%) NoSQL
4 5 (7.94%) Hadoop
4 5 (7.94%) SQL Server 2008
4 5 (7.94%) SQL Server 2012
5 4 (6.35%) Data Warehouse
5 4 (6.35%) MongoDB
6 3 (4.76%) MOLAP
7 2 (3.17%) RavenDB
8 1 (1.59%) Big Data
8 1 (1.59%) DB2
8 1 (1.59%) MySQL
8 1 (1.59%) Oracle Database
8 1 (1.59%) RDBMS
8 1 (1.59%) Relational Database
Development Applications
1 18 (28.57%) Team Foundation Server
2 15 (23.81%) Git (software)
3 14 (22.22%) Jenkins
4 10 (15.87%) Visual Studio
5 9 (14.29%) Build Forge
5 9 (14.29%) CruiseControl
5 9 (14.29%) Hudson
6 7 (11.11%) Maven
7 6 (9.52%) Moq
8 4 (6.35%) JUnit
8 4 (6.35%) NUnit
9 3 (4.76%) Cucumber
9 3 (4.76%) Mercurial
9 3 (4.76%) MSBuild
10 2 (3.17%) Artifactory
10 2 (3.17%) Eclipse
10 2 (3.17%) Gradle
10 2 (3.17%) NuGet
10 2 (3.17%) SpecFlow
10 2 (3.17%) TeamCity
General
1 25 (39.68%) Finance
2 9 (14.29%) Banking
3 3 (4.76%) Front Office
4 1 (1.59%) Investment Banking
4 1 (1.59%) Prime Brokerage
Job Titles
1 43 (68.25%) Developer
2 22 (34.92%) .NET Developer
3 20 (31.75%) C# Developer
4 18 (28.57%) C# .NET Developer
5 17 (26.98%) Java Developer
6 14 (22.22%) Architect
7 13 (20.63%) SQL Developer
8 10 (15.87%) Senior Developer
9 9 (14.29%) .NET Architect
10 8 (12.70%) Senior Java Developer
10 8 (12.70%) SQL Server Developer
11 7 (11.11%) ASP.NET MVC Developer
11 7 (11.11%) Technical Architect
12 6 (9.52%) .NET Technical Architect
13 5 (7.94%) Applications Developer
13 5 (7.94%) ASP.NET Developer
13 5 (7.94%) C# ASP.NET Developer
13 5 (7.94%) Senior .NET Developer
13 5 (7.94%) Senior C# .NET Developer
13 5 (7.94%) Senior C# Developer
Libraries, Frameworks & Software Standards
1 47 (74.60%) .NET
2 25 (39.68%) WCF
3 21 (33.33%) REST
4 20 (31.75%) Spring
5 18 (28.57%) ASP.NET
5 18 (28.57%) JSON
6 17 (26.98%) Web Services
7 16 (25.40%) AngularJS
7 16 (25.40%) HTML
8 15 (23.81%) .NET Framework
8 15 (23.81%) CSS
8 15 (23.81%) RESTful
9 12 (19.05%) Hibernate
10 11 (17.46%) ASP.NET Web API
10 11 (17.46%) J2EE
10 11 (17.46%) JPA
10 11 (17.46%) JSP
11 10 (15.87%) ASP.NET MVC
11 10 (15.87%) Spring Boot
12 9 (14.29%) jQuery
Miscellaneous
1 11 (17.46%) Analytical Skills
1 11 (17.46%) Computer Science
2 9 (14.29%) Mobile App
3 5 (7.94%) Derivative
4 1 (1.59%) Animation
4 1 (1.59%) Clustering
4 1 (1.59%) DataPower
4 1 (1.59%) Enterprise Software
4 1 (1.59%) Fintech
4 1 (1.59%) N-Tier
4 1 (1.59%) Statistics
Operating Systems
1 14 (22.22%) Windows
2 8 (12.70%) Linux
3 5 (7.94%) Ubuntu
4 3 (4.76%) Unix
5 1 (1.59%) Android
5 1 (1.59%) Apple iOS
5 1 (1.59%) Windows Server
Processes & Methodologies
1 44 (69.84%) Agile Software Development
2 34 (53.97%) TDD
3 27 (42.86%) MVC
4 24 (38.10%) Dependency Injection
4 24 (38.10%) Scrum
5 18 (28.57%) SOLID
6 16 (25.40%) BDD
7 15 (23.81%) Continuous Integration
8 12 (19.05%) SDLC
9 7 (11.11%) Business Intelligence
9 7 (11.11%) Mentoring
9 7 (11.11%) Migration
9 7 (11.11%) Performance Tuning
9 7 (11.11%) Unit Testing
10 6 (9.52%) Multithreading
10 6 (9.52%) Test Automation
11 5 (7.94%) Benchmarking
11 5 (7.94%) Load Balancing
11 5 (7.94%) MVVM
11 5 (7.94%) Software Engineering
Programming Languages
1 40 (63.49%) C#
2 31 (49.21%) SQL
3 21 (33.33%) JavaScript
4 20 (31.75%) Java
4 20 (31.75%) T-SQL
5 9 (14.29%) PowerShell
6 5 (7.94%) TypeScript
7 4 (6.35%) Bash Shell
7 4 (6.35%) C
7 4 (6.35%) Python
7 4 (6.35%) VB
7 4 (6.35%) VB.NET
7 4 (6.35%) VB6
7 4 (6.35%) VBA
8 1 (1.59%) C++
8 1 (1.59%) MATLAB
8 1 (1.59%) Objective-C
8 1 (1.59%) Perl
8 1 (1.59%) PL/SQL
8 1 (1.59%) R
Qualifications
1 12 (19.05%) Degree
Quality Assurance & Compliance
1 5 (7.94%) QA
System Software
1 2 (3.17%) Docker
2 1 (1.59%) Virtual Machines
Systems Management
1 2 (3.17%) Opscode Chef
2 1 (1.59%) Ansible
2 1 (1.59%) Kubernetes
2 1 (1.59%) Marathon
2 1 (1.59%) Mesos
Vendors
1 16 (25.40%) Microsoft
2 9 (14.29%) TIBCO
3 5 (7.94%) Oracle
4 3 (4.76%) IBM
5 1 (1.59%) Apple
5 1 (1.59%) Google
5 1 (1.59%) Kony
5 1 (1.59%) Sybase
5 1 (1.59%) Xamarin
5 1 (1.59%) Yahoo!