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 8 December 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
8 Dec 2016
Same period 2015 Same period 2014
Inversion of Control (IoC)
Rank 395 389 391
Rank change year-on-year
-6 +2
Contract jobs citing Inversion of Control 32 35 47
As % of all contract IT jobs located in London 0.15% 0.16% 0.20%
As % of the Miscellaneous category 0.41% 0.42% 0.55%
Number of daily rates quoted 27 28 36
Median daily rate £500 £406 £425
Median daily rate % change year-on-year
+23.07% -4.41%
90% offered a daily rate of more than £340 £327 £400
10% offered a daily rate of more than £550 £538 £663
UK excluding London median daily rate £337 £325 £361
% change year-on-year
+3.69% -9.97%
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
7751 8356 8570
As % of all contract IT jobs located in London 36.03% 37.04% 36.32%
Number of daily rates quoted 5390 5798 6102
Median daily rate £490 £475 £450
Median daily rate % change year-on-year
+3.15% +5.55%
90% offered a daily rate of more than £300 £288 £263
10% offered a daily rate of more than £650 £650 £625
UK excluding London median daily rate £380 £385 £363
% change year-on-year
-1.29% +6.20%
Number of hourly rates quoted 129 144 194
Median hourly rate £21.00 £22.50 £17.00
Median hourly rate % change year-on-year
-6.66% +32.35%
90% offered a hourly rate of more than £14.00 £13.00 £12.50
10% offered a hourly rate of more than £46.00 £43.00 £37.40
UK excluding London median hourly rate £18.53 £19.50 £16.84
% change year-on-year
-5.00% +15.79%

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 8 December 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 8 December 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 -5 8 £538 +51.40% 3
Canary Wharf - 1 £475 -
Inversion of Control
England

Inversion of Control
Top 30 Related IT Skills in London

For the 6 months to 8 December 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 49 (76.56%) .NET
2 43 (67.19%) Agile Software Development
3 38 (59.38%) C#
4 34 (53.13%) TDD
5 33 (51.56%) SQL
6 29 (45.31%) MVC
6 29 (45.31%) Scrum
7 28 (43.75%) SQL Server
8 24 (37.50%) JavaScript
9 23 (35.94%) Dependency Injection
10 22 (34.38%) Continuous Integration
10 22 (34.38%) ASP.NET
10 22 (34.38%) Finance
11 20 (31.25%) Spring
11 20 (31.25%) Java
11 20 (31.25%) Git (software)
11 20 (31.25%) JSON
11 20 (31.25%) WCF
11 20 (31.25%) Jenkins
12 19 (29.69%) AngularJS
12 19 (29.69%) REST
12 19 (29.69%) Web Services
13 18 (28.13%) HTML
14 17 (26.56%) CSS
15 16 (25.00%) T-SQL
15 16 (25.00%) SOLID
16 14 (21.88%) Windows
16 14 (21.88%) .NET Framework
17 13 (20.31%) Degree
17 13 (20.31%) RESTful

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 5 (7.81%) IIS
1 5 (7.81%) Tomcat
2 4 (6.25%) Apache Spark
3 3 (4.69%) Jetty
3 3 (4.69%) NServiceBus
4 2 (3.13%) Confluence
5 1 (1.56%) Apache
5 1 (1.56%) BizTalk Server
5 1 (1.56%) Cloud Foundry
5 1 (1.56%) Elasticsearch
5 1 (1.56%) JBoss
5 1 (1.56%) Oracle SOA Suite
5 1 (1.56%) WebLogic
5 1 (1.56%) WebSphere
5 1 (1.56%) WebSphere Application Server
Business Applications
1 1 (1.56%) RMDS
Cloud Services
1 8 (12.50%) Amazon AWS
2 6 (9.38%) Microsoft Azure
3 1 (1.56%) IaaS
Communications & Networking
1 4 (6.25%) HTTP
2 3 (4.69%) Internet
3 1 (1.56%) SSL
Database & Business Intelligence
1 28 (43.75%) SQL Server
2 11 (17.19%) NoSQL
3 7 (10.94%) MongoDB
4 5 (7.81%) Hadoop
5 4 (6.25%) Data Warehouse
5 4 (6.25%) SQL Server Analysis Services
5 4 (6.25%) SQL Server Integration Services
5 4 (6.25%) SQL Server Reporting Services
6 3 (4.69%) MOLAP
6 3 (4.69%) RavenDB
6 3 (4.69%) SQL Server 2008
7 2 (3.13%) Amazon DynamoDB
7 2 (3.13%) DB2
7 2 (3.13%) SQL Server 2012
8 1 (1.56%) Big Data
8 1 (1.56%) Relational Database
Development Applications
1 20 (31.25%) Git (software)
1 20 (31.25%) Jenkins
2 11 (17.19%) Maven
3 9 (14.06%) Build Forge
3 9 (14.06%) CruiseControl
3 9 (14.06%) Hudson
4 8 (12.50%) Moq
4 8 (12.50%) Team Foundation Server
5 7 (10.94%) Subversion
5 7 (10.94%) Visual Studio
6 6 (9.38%) TeamCity
7 5 (7.81%) Cucumber
7 5 (7.81%) Gradle
7 5 (7.81%) JUnit
8 4 (6.25%) Grunt
8 4 (6.25%) gulp
8 4 (6.25%) JIRA
8 4 (6.25%) Sonatype Nexus
8 4 (6.25%) SpecFlow
9 3 (4.69%) NUnit
General
1 22 (34.38%) Finance
2 11 (17.19%) Banking
3 3 (4.69%) Front Office
3 3 (4.69%) Investment Banking
4 2 (3.13%) Marketing
5 1 (1.56%) Back Office
Job Titles
1 47 (73.44%) Developer
2 25 (39.06%) .NET Developer
3 18 (28.13%) C# Developer
4 17 (26.56%) Java Developer
5 15 (23.44%) C# .NET Developer
6 14 (21.88%) Architect
7 11 (17.19%) Senior Developer
7 11 (17.19%) SQL Developer
8 9 (14.06%) .NET Architect
9 7 (10.94%) ASP.NET MVC Developer
9 7 (10.94%) Senior Java Developer
9 7 (10.94%) Technical Architect
10 6 (9.38%) .NET Technical Architect
10 6 (9.38%) Senior .NET Developer
11 5 (7.81%) Core Java Developer
11 5 (7.81%) Full Stack Developer
11 5 (7.81%) Senior C# Developer
11 5 (7.81%) Solutions Architect
12 4 (6.25%) Business Intelligence Lead
12 4 (6.25%) Senior C# .NET Developer
Libraries, Frameworks & Software Standards
1 49 (76.56%) .NET
2 22 (34.38%) ASP.NET
3 20 (31.25%) JSON
3 20 (31.25%) Spring
3 20 (31.25%) WCF
4 19 (29.69%) AngularJS
4 19 (29.69%) REST
4 19 (29.69%) Web Services
5 18 (28.13%) HTML
6 17 (26.56%) CSS
7 14 (21.88%) .NET Framework
8 13 (20.31%) ASP.NET MVC
8 13 (20.31%) Hibernate
8 13 (20.31%) RESTful
9 12 (18.75%) XML
10 11 (17.19%) J2EE
10 11 (17.19%) JPA
10 11 (17.19%) WPF
11 10 (15.63%) jQuery
11 10 (15.63%) TIBCO EMS
Miscellaneous
1 12 (18.75%) Computer Science
2 9 (14.06%) Mobile App
3 5 (7.81%) Analytical Skills
4 4 (6.25%) Derivative
5 3 (4.69%) N-Tier
6 2 (3.13%) Equities
6 2 (3.13%) User Experience
6 2 (3.13%) Visualisation
7 1 (1.56%) Animation
7 1 (1.56%) Blackberry
7 1 (1.56%) Enterprise Software
7 1 (1.56%) Fintech
7 1 (1.56%) Foreign Exchange (FX)
7 1 (1.56%) iPhone
7 1 (1.56%) Statistics
Operating Systems
1 14 (21.88%) Windows
2 5 (7.81%) Linux
2 5 (7.81%) Unix
3 2 (3.13%) Android
4 1 (1.56%) Apple iOS
4 1 (1.56%) Windows Phone
4 1 (1.56%) Windows Server
Processes & Methodologies
1 43 (67.19%) Agile Software Development
2 34 (53.13%) TDD
3 29 (45.31%) MVC
3 29 (45.31%) Scrum
4 23 (35.94%) Dependency Injection
5 22 (34.38%) Continuous Integration
6 16 (25.00%) SOLID
7 13 (20.31%) BDD
8 9 (14.06%) Mentoring
8 9 (14.06%) Multithreading
8 9 (14.06%) Unit Testing
9 8 (12.50%) Performance Tuning
9 8 (12.50%) SDLC
10 7 (10.94%) Low Latency
11 6 (9.38%) Benchmarking
11 6 (9.38%) Kanban
11 6 (9.38%) MVVM
12 5 (7.81%) Asynchronous Programming
12 5 (7.81%) Translating Business Requirements
13 4 (6.25%) Waterfall
Programming Languages
1 38 (59.38%) C#
2 33 (51.56%) SQL
3 24 (37.50%) JavaScript
4 20 (31.25%) Java
5 16 (25.00%) T-SQL
6 5 (7.81%) TypeScript
7 4 (6.25%) Bash Shell
7 4 (6.25%) C
7 4 (6.25%) PowerShell
7 4 (6.25%) Python
7 4 (6.25%) VBA
8 3 (4.69%) VB
8 3 (4.69%) VB.NET
8 3 (4.69%) VB6
9 2 (3.13%) ES6
10 1 (1.56%) C++
10 1 (1.56%) MATLAB
10 1 (1.56%) Objective-C
10 1 (1.56%) R
10 1 (1.56%) Ruby
Qualifications
1 13 (20.31%) Degree
Quality Assurance & Compliance
1 5 (7.81%) QA
System Software
1 1 (1.56%) Docker
1 1 (1.56%) Virtual Machines
Systems Management
1 3 (4.69%) Opscode Chef
2 1 (1.56%) Ansible
2 1 (1.56%) yum
Vendors
1 11 (17.19%) TIBCO
2 9 (14.06%) Microsoft
3 7 (10.94%) Oracle
4 3 (4.69%) IBM
5 2 (3.13%) Infragistics
5 2 (3.13%) Syncfusion
5 2 (3.13%) Xamarin
6 1 (1.56%) Apple
6 1 (1.56%) Caplin