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 July 2016 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 Jul 2016
Same period 2015 Same period 2014
Inversion of Control (IoC)
Rank 395 386 392
Rank change year-on-year
-9 +6
Contract jobs citing Inversion of Control 36 40 29
As % of all contract IT jobs located in London 0.16% 0.17% 0.13%
As % of the Miscellaneous category 0.44% 0.46% 0.33%
Number of daily rates quoted 25 37 25
Median daily rate £475 £495 £425
Median daily rate % change year-on-year
-4.04% +16.47%
90% offered a daily rate of more than £375 £350 £395
10% offered a daily rate of more than £620 £585 £534
UK excluding London median daily rate £363 £315 £321
% change year-on-year
+15.07% -1.94%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -
Inversion of Control
England

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
8155 8671 8698
As % of all contract IT jobs located in London 36.80% 36.74% 37.97%
Number of daily rates quoted 5743 6086 5881
Median daily rate £475 £475 £450
Median daily rate % change year-on-year
- +5.55%
90% offered a daily rate of more than £300 £275 £280
10% offered a daily rate of more than £650 £650 £650
UK excluding London median daily rate £388 £375 £350
% change year-on-year
+3.33% +7.14%
Number of hourly rates quoted 109 172 165
Median hourly rate £17.88 £18.71 £20.00
Median hourly rate % change year-on-year
-4.46% -6.45%
90% offered a hourly rate of more than £11.75 £13.50 £14.04
10% offered a hourly rate of more than £45.13 £52.17 £45.00
UK excluding London median hourly rate £21.36 £18.00 £20.50
% change year-on-year
+18.63% -12.19%

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 July 2016.

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 July 2016. 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
(Click see detailed
statistics and trends)
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 +36 2 £488 +18.18% 4
Inversion of Control
England

Inversion of Control
Top 30 Related IT Skills in London

For the 6 months to 23 July 2016, 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 60 (81.08%) Agile Software Development
2 59 (79.73%) .NET
3 57 (77.03%) TDD
4 55 (74.32%) C#
5 49 (66.22%) MVC
6 43 (58.11%) SQL
7 41 (55.41%) JavaScript
8 38 (51.35%) ASP.NET
9 35 (47.30%) ASP.NET MVC
10 34 (45.95%) HTML
11 33 (44.59%) jQuery
11 33 (44.59%) Continuous Integration
12 32 (43.24%) SQL Server
12 32 (43.24%) OO
13 30 (40.54%) CSS
13 30 (40.54%) Web Services
13 30 (40.54%) BDD
14 28 (37.84%) .NET Framework
15 27 (36.49%) WCF
16 26 (35.14%) Microsoft
17 25 (33.78%) T-SQL
18 22 (29.73%) Scrum
18 22 (29.73%) HTML5
18 22 (29.73%) KnockoutJS
18 22 (29.73%) AngularJS
19 21 (28.38%) Finance
20 19 (25.68%) Banking
20 19 (25.68%) Git (software)
21 18 (24.32%) Subversion
21 18 (24.32%) Ajax

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 17 (22.97%) IIS
2 4 (5.41%) NServiceBus
3 3 (4.05%) Confluence
4 2 (2.70%) Elasticsearch
4 2 (2.70%) Tomcat
5 1 (1.35%) Apache
5 1 (1.35%) Apache TomEE
5 1 (1.35%) JBoss
5 1 (1.35%) Jetty
5 1 (1.35%) WebSphere
Applications
1 17 (22.97%) MS Excel
2 2 (2.70%) MS PowerPoint
Business Applications
1 7 (9.46%) Dynamics CRM
2 6 (8.11%) Beauchamp
3 1 (1.35%) RMDS
Cloud Services
1 8 (10.81%) Amazon AWS
2 3 (4.05%) Microsoft Azure
3 2 (2.70%) Amazon EC2
3 2 (2.70%) GitHub
3 2 (2.70%) Virtual Private Cloud
Communications & Networking
1 2 (2.70%) HTTP
1 2 (2.70%) Internet
Database & Business Intelligence
1 32 (43.24%) SQL Server
2 12 (16.22%) Relational Database
3 8 (10.81%) SQL Server Reporting Services
4 7 (9.46%) NoSQL
5 6 (8.11%) MongoDB
6 5 (6.76%) Amazon DynamoDB
6 5 (6.76%) SQL Server 2012
7 3 (4.05%) SQL Server Integration Services
8 2 (2.70%) Amazon RDS
8 2 (2.70%) Amazon Redshift
8 2 (2.70%) DB2
8 2 (2.70%) MySQL
8 2 (2.70%) PostgreSQL
9 1 (1.35%) Big Data
9 1 (1.35%) Crystal Reports
9 1 (1.35%) RavenDB
9 1 (1.35%) SQL Server 2008
9 1 (1.35%) SQL Server Analysis Services
Development Applications
1 19 (25.68%) Git (software)
2 18 (24.32%) Subversion
3 14 (18.92%) SpecFlow
4 13 (17.57%) NUnit
5 12 (16.22%) Jenkins
6 11 (14.86%) Moq
6 11 (14.86%) Team Foundation Server
6 11 (14.86%) TeamCity
7 10 (13.51%) JIRA
8 9 (12.16%) Maven
8 9 (12.16%) Visual Studio
9 8 (10.81%) Rhino Mocks
10 6 (8.11%) Cucumber
10 6 (8.11%) MSBuild
10 6 (8.11%) MSTest
11 5 (6.76%) Jasmine
11 5 (6.76%) Mockito
11 5 (6.76%) Selenium
12 4 (5.41%) JBehave
12 4 (5.41%) jMock
General
1 21 (28.38%) Finance
2 19 (25.68%) Banking
3 10 (13.51%) Investment Banking
4 6 (8.11%) Back Office
5 3 (4.05%) Front Office
6 2 (2.70%) Marketing
7 1 (1.35%) Retail
Job Titles
1 70 (94.59%) Developer
2 39 (52.70%) C# Developer
3 38 (51.35%) .NET Developer
4 26 (35.14%) C# .NET Developer
5 16 (21.62%) ASP.NET Developer
5 16 (21.62%) C# ASP.NET Developer
6 15 (20.27%) ASP.NET MVC Developer
7 13 (17.57%) Agile Developer
8 11 (14.86%) Agile .NET Developer
8 11 (14.86%) Agile C# Developer
8 11 (14.86%) C# WCF Developer
8 11 (14.86%) WCF Developer
9 10 (13.51%) SQL Developer
10 9 (12.16%) Java Developer
11 7 (9.46%) CRM Developer
11 7 (9.46%) Senior Developer
12 5 (6.76%) Full Stack Developer
12 5 (6.76%) Senior .NET Developer
12 5 (6.76%) Web Developer
13 4 (5.41%) Senior C# Developer
Libraries, Frameworks & Software Standards
1 59 (79.73%) .NET
2 38 (51.35%) ASP.NET
3 35 (47.30%) ASP.NET MVC
4 34 (45.95%) HTML
5 33 (44.59%) jQuery
6 30 (40.54%) CSS
6 30 (40.54%) Web Services
7 28 (37.84%) .NET Framework
8 27 (36.49%) WCF
9 22 (29.73%) AngularJS
9 22 (29.73%) HTML5
9 22 (29.73%) KnockoutJS
10 18 (24.32%) Ajax
11 16 (21.62%) Autofac
12 15 (20.27%) Ninject
12 15 (20.27%) WPF
13 14 (18.92%) Backbone.js
14 13 (17.57%) Entity Framework
14 13 (17.57%) NHibernate
14 13 (17.57%) RequireJS
Miscellaneous
1 9 (12.16%) N-Tier
2 7 (9.46%) User Experience
3 6 (8.11%) Foreign Exchange (FX)
4 5 (6.76%) Hedge funds
5 3 (4.05%) Analytical Skills
5 3 (4.05%) Computer Science
6 2 (2.70%) Equities
6 2 (2.70%) Visualisation
6 2 (2.70%) Wiki
7 1 (1.35%) Blackberry
7 1 (1.35%) Data Integration
7 1 (1.35%) iPhone
7 1 (1.35%) Mobile App
Operating Systems
1 11 (14.86%) Windows Server
2 7 (9.46%) Linux
2 7 (9.46%) Unix
3 6 (8.11%) Windows
4 2 (2.70%) Android
5 1 (1.35%) Windows Phone
Processes & Methodologies
1 60 (81.08%) Agile Software Development
2 57 (77.03%) TDD
3 49 (66.22%) MVC
4 33 (44.59%) Continuous Integration
5 32 (43.24%) OO
6 30 (40.54%) BDD
7 22 (29.73%) Scrum
8 15 (20.27%) Web Development
9 12 (16.22%) Multithreading
9 12 (16.22%) SDLC
10 11 (14.86%) Dependency Injection
10 11 (14.86%) Unit Testing
11 10 (13.51%) MVVM
11 10 (13.51%) OOD
11 10 (13.51%) Software Engineering
12 9 (12.16%) Software Testing
13 8 (10.81%) Performance Tuning
13 8 (10.81%) SOLID
13 8 (10.81%) Test Automation
14 7 (9.46%) Mentoring
Programming Languages
1 55 (74.32%) C#
2 43 (58.11%) SQL
3 41 (55.41%) JavaScript
4 25 (33.78%) T-SQL
5 10 (13.51%) Java
6 6 (8.11%) PL/SQL
7 3 (4.05%) PowerShell
7 3 (4.05%) TypeScript
8 2 (2.70%) C++
8 2 (2.70%) ES6
8 2 (2.70%) Python
9 1 (1.35%) CoffeeScript
9 1 (1.35%) Ruby
9 1 (1.35%) Scala
9 1 (1.35%) XPath
Qualifications
1 10 (13.51%) Degree
2 7 (9.46%) MCPD
2 7 (9.46%) MCSD
2 7 (9.46%) Microsoft Certification
Quality Assurance & Compliance
1 4 (5.41%) QA
2 1 (1.35%) Dodd-Frank
2 1 (1.35%) EMIR
Systems Management
1 5 (6.76%) yum
2 1 (1.35%) Opscode Chef
2 1 (1.35%) Puppet
Vendors
1 26 (35.14%) Microsoft
2 15 (20.27%) Oracle
3 7 (9.46%) TIBCO
4 5 (6.76%) IBM
5 4 (5.41%) Caplin
6 2 (2.70%) Currenex
6 2 (2.70%) FXall
6 2 (2.70%) Infragistics
6 2 (2.70%) Syncfusion
6 2 (2.70%) Twitter
7 1 (1.35%) Sitecore
7 1 (1.35%) Xamarin
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