The table below looks at the prevalence of the term Inversion of Control in IT contracts advertised for the England 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 546 566 523
Rank change year-on-year
+20 -43
Contract jobs citing Inversion of Control 52 55 91
As % of all contract IT jobs located in England 0.11% 0.11% 0.18%
As % of the Miscellaneous category 0.35% 0.33% 0.55%
Number of daily rates quoted 43 44 68
Median daily rate £380 £350 £425
Median daily rate % change year-on-year
+8.57% -17.64%
90% offered a daily rate of more than £305 £300 £325
10% offered a daily rate of more than £545 £493 £535
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
UK

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

Miscellaneous Category
England
Contract IT job ads with a match in the
Miscellaneous category
14996 16904 16619
As % of all contract IT jobs located in England 32.58% 33.44% 32.21%
Number of daily rates quoted 9763 10773 10704
Median daily rate £450 £425 £415
Median daily rate % change year-on-year
+5.88% +2.40%
90% offered a daily rate of more than £250 £250 £238
10% offered a daily rate of more than £638 £625 £600
UK excluding London median daily rate £380 £385 £363
% change year-on-year
-1.29% +6.20%
Number of hourly rates quoted 537 721 701
Median hourly rate £19.14 £20.00 £17.00
Median hourly rate % change year-on-year
-4.30% +17.64%
90% offered a hourly rate of more than £12.00 £12.02 £11.00
10% offered a hourly rate of more than £45.00 £45.00 £42.50
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 England

The demand trend of contract jobs across the England 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 England

Inversion of Control
Daily Rate Trend in England

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

Inversion of Control Daily Rate Trend in England

Inversion of Control
Daily Rate Histogram in England

This chart provides a histogram of daily rates quoted in contract IT jobs citing Inversion of Control across the England region over the 3 months to 8 December 2016.

Inversion of Control Daily Rate Histogram in England

Inversion of Control
Hourly Rate Trend in England

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing Inversion of Control across the England region.

Inversion of Control Hourly Rate Trend in England

Inversion of Control
Contract Job Locations in England

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 England 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
London -6 32 £500 +23.07% 13
South East +39 8 £300 - 8
Yorkshire +15 4 £350 +7.69% 1
North West - 4 £375 - 8
West Midlands - 2 - - 4
East of England - 2 £325 - 4
Inversion of Control
UK

Inversion of Control
Top 30 Related IT Skills in England

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 England region with a requirement for Inversion of Control.

1 77 (68.14%) C#
2 75 (66.37%) .NET
2 75 (66.37%) MVC
3 64 (56.64%) SQL
4 58 (51.33%) SQL Server
5 55 (48.67%) Agile Software Development
6 49 (43.36%) Finance
7 43 (38.05%) T-SQL
8 40 (35.40%) TDD
9 39 (34.51%) jQuery
10 37 (32.74%) JavaScript
11 34 (30.09%) ASP.NET
11 34 (30.09%) Scrum
11 34 (30.09%) Entity Framework
12 32 (28.32%) Git (software)
13 30 (26.55%) Java
13 30 (26.55%) Spring
13 30 (26.55%) .NET Framework
13 30 (26.55%) Twitter Bootstrap
13 30 (26.55%) Unity DI Container
14 29 (25.66%) Dependency Injection
15 27 (23.89%) Razor View Engine
15 27 (23.89%) ASP.NET MVC 5
16 26 (23.01%) REST
17 25 (22.12%) VBA
17 25 (22.12%) Continuous Integration
17 25 (22.12%) SQL Server Analysis Services
18 24 (21.24%) ASP.NET MVC
18 24 (21.24%) SQL Server Reporting Services
18 24 (21.24%) SQL Server Integration Services

Inversion of Control
Top Related IT Skills in England 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 12 (10.62%) Tomcat
2 10 (8.85%) Jetty
3 5 (4.42%) IIS
4 4 (3.54%) Apache Spark
5 3 (2.65%) NServiceBus
6 2 (1.77%) Apache
6 2 (1.77%) Confluence
6 2 (1.77%) JBoss
6 2 (1.77%) WebLogic
6 2 (1.77%) WebSphere
6 2 (1.77%) WebSphere Application Server
7 1 (0.88%) BizTalk Server
7 1 (0.88%) Cloud Foundry
7 1 (0.88%) Elasticsearch
7 1 (0.88%) GlassFish
7 1 (0.88%) Oracle SOA Suite
7 1 (0.88%) Umbraco
7 1 (0.88%) WebLogic Integration
7 1 (0.88%) WebLogic Portal
7 1 (0.88%) WebSphere Process Server
Business Applications
1 1 (0.88%) Oracle BPM
1 1 (0.88%) RMDS
Cloud Services
1 14 (12.39%) Amazon AWS
2 11 (9.73%) Microsoft Azure
3 4 (3.54%) Amazon EC2
3 4 (3.54%) Amazon S3
3 4 (3.54%) AWS CloudFormation
4 1 (0.88%) IaaS
Communications & Networking
1 5 (4.42%) HTTP
2 3 (2.65%) Internet
3 1 (0.88%) SSL
Database & Business Intelligence
1 58 (51.33%) SQL Server
2 25 (22.12%) SQL Server Analysis Services
3 24 (21.24%) SQL Server Integration Services
3 24 (21.24%) SQL Server Reporting Services
4 20 (17.70%) NoSQL
5 11 (9.73%) MongoDB
6 6 (5.31%) MySQL
6 6 (5.31%) PostgreSQL
6 6 (5.31%) SQLite
7 5 (4.42%) Hadoop
8 4 (3.54%) Amazon DynamoDB
8 4 (3.54%) Data Warehouse
8 4 (3.54%) Relational Database
9 3 (2.65%) MOLAP
9 3 (2.65%) RavenDB
9 3 (2.65%) RDBMS
9 3 (2.65%) SQL Server 2008
10 2 (1.77%) DB2
10 2 (1.77%) SQL Server 2012
11 1 (0.88%) Oracle Database
Development Applications
1 32 (28.32%) Git (software)
2 20 (17.70%) Jenkins
3 19 (16.81%) Maven
4 11 (9.73%) JUnit
5 9 (7.96%) Build Forge
5 9 (7.96%) CruiseControl
5 9 (7.96%) Hudson
5 9 (7.96%) Moq
5 9 (7.96%) Subversion
5 9 (7.96%) Team Foundation Server
6 7 (6.19%) Gradle
6 7 (6.19%) Visual Studio
7 6 (5.31%) NUnit
7 6 (5.31%) TeamCity
7 6 (5.31%) TestNG
8 5 (4.42%) Cucumber
8 5 (4.42%) JIRA
8 5 (4.42%) SpecFlow
9 4 (3.54%) gulp
9 4 (3.54%) Sonatype Nexus
General
1 49 (43.36%) Finance
2 11 (9.73%) Banking
3 9 (7.96%) Back Office
4 3 (2.65%) Front Office
4 3 (2.65%) Investment Banking
5 2 (1.77%) Games
5 2 (1.77%) Marketing
Job Titles
1 96 (84.96%) Developer
2 47 (41.59%) .NET Developer
3 31 (27.43%) C# Developer
3 31 (27.43%) SQL Developer
4 27 (23.89%) Java Developer
5 19 (16.81%) C# .NET Developer
6 14 (12.39%) Architect
7 12 (10.62%) Senior Developer
8 9 (7.96%) .NET Architect
8 9 (7.96%) ASP.NET MVC Developer
9 8 (7.08%) Front End Developer (Client-Side Developer)
9 8 (7.08%) Senior Java Developer
10 7 (6.19%) J2EE Developer
10 7 (6.19%) Java/J2EE Developer
10 7 (6.19%) Technical Architect
11 6 (5.31%) .NET Technical Architect
11 6 (5.31%) Full Stack Developer
11 6 (5.31%) Senior .NET Developer
12 5 (4.42%) ASP.NET Developer
12 5 (4.42%) SQL Server Developer
Libraries, Frameworks & Software Standards
1 75 (66.37%) .NET
2 39 (34.51%) jQuery
3 34 (30.09%) ASP.NET
3 34 (30.09%) Entity Framework
4 30 (26.55%) .NET Framework
4 30 (26.55%) Spring
4 30 (26.55%) Twitter Bootstrap
4 30 (26.55%) Unity DI Container
5 27 (23.89%) ASP.NET MVC 5
5 27 (23.89%) Razor View Engine
6 26 (23.01%) REST
7 24 (21.24%) ASP.NET MVC
7 24 (21.24%) HTML
8 23 (20.35%) AngularJS
8 23 (20.35%) Web Services
9 22 (19.47%) CSS
9 22 (19.47%) WCF
10 21 (18.58%) Hibernate
10 21 (18.58%) JSON
11 19 (16.81%) JPA
Miscellaneous
1 17 (15.04%) Visualisation
2 12 (10.62%) Computer Science
3 10 (8.85%) Mobile App
4 5 (4.42%) Analytical Skills
5 4 (3.54%) Derivative
6 3 (2.65%) N-Tier
7 2 (1.77%) Equities
7 2 (1.77%) User Experience
8 1 (0.88%) Animation
8 1 (0.88%) Blackberry
8 1 (0.88%) DataPower
8 1 (0.88%) Enterprise Software
8 1 (0.88%) Fintech
8 1 (0.88%) Foreign Exchange (FX)
8 1 (0.88%) iPhone
8 1 (0.88%) Statistics
8 1 (0.88%) W3C
Operating Systems
1 19 (16.81%) Windows
2 11 (9.73%) Linux
2 11 (9.73%) Unix
3 2 (1.77%) Android
4 1 (0.88%) Apple iOS
4 1 (0.88%) Windows Phone
4 1 (0.88%) Windows Server
Processes & Methodologies
1 75 (66.37%) MVC
2 55 (48.67%) Agile Software Development
3 40 (35.40%) TDD
4 34 (30.09%) Scrum
5 29 (25.66%) Dependency Injection
6 25 (22.12%) Continuous Integration
7 18 (15.93%) SOLID
8 16 (14.16%) BDD
9 15 (13.27%) Data Validation
9 15 (13.27%) Data Visualisation
9 15 (13.27%) Validation
9 15 (13.27%) Web Development
10 12 (10.62%) Unit Testing
11 11 (9.73%) Mentoring
12 10 (8.85%) Multithreading
13 9 (7.96%) Budgeting and Forecasting
13 9 (7.96%) OO
13 9 (7.96%) SDLC
14 8 (7.08%) Kanban
14 8 (7.08%) Performance Tuning
Programming Languages
1 77 (68.14%) C#
2 64 (56.64%) SQL
3 43 (38.05%) T-SQL
4 37 (32.74%) JavaScript
5 30 (26.55%) Java
6 25 (22.12%) VBA
7 8 (7.08%) PowerShell
8 5 (4.42%) TypeScript
9 4 (3.54%) Bash Shell
9 4 (3.54%) C
9 4 (3.54%) Python
10 3 (2.65%) VB
10 3 (2.65%) VB.NET
10 3 (2.65%) VB6
11 2 (1.77%) ES6
12 1 (0.88%) PL/SQL
12 1 (0.88%) R
12 1 (0.88%) Ruby
12 1 (0.88%) XPath
12 1 (0.88%) XQuery
Qualifications
1 14 (12.39%) Degree
2 4 (3.54%) Security Cleared
3 3 (2.65%) BPSS Clearance
Quality Assurance & Compliance
1 6 (5.31%) QA
2 5 (4.42%) Disclosure Scotland
System Software
1 3 (2.65%) Docker
2 1 (0.88%) Virtual Machines
Systems Management
1 3 (2.65%) Opscode Chef
2 1 (0.88%) Ansible
2 1 (0.88%) yum
Vendors
1 14 (12.39%) Oracle
2 11 (9.73%) TIBCO
3 10 (8.85%) Microsoft
4 4 (3.54%) IBM
5 2 (1.77%) Infragistics
5 2 (1.77%) Syncfusion
5 2 (1.77%) Telerik
5 2 (1.77%) Xamarin
6 1 (0.88%) Apple
6 1 (0.88%) Caplin
6 1 (0.88%) Kony
6 1 (0.88%) MuleSoft
6 1 (0.88%) Sitecore