Period
to 17 November 2017

The following table provides summary statistics for contract job vacancies with a requirement for Inversion of Control skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Inversion of Control over the 6 months to 17 November 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Inversion of Control (IoC)
UK
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 760 764 771
Rank change year-on-year +4 +7 -29
Contract jobs citing Inversion of Control 118 130 122
As % of all contract IT jobs advertised in the UK 0.11% 0.12% 0.11%
As % of the Processes & Methodologies category 0.14% 0.15% 0.13%
Number of daily rates quoted 103 99 109
UK median daily rate £483 £380 £388
Median daily rate % change year-on-year +26.97% -1.94% -8.82%
10th Percentile £333 £313 £285
90th Percentile £625 £563 £575
UK excluding London median daily rate £345 £350 £325
% change year-on-year -1.29% +7.54% -7.14%
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

Inversion of Control is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for process or methodology skills.

All Process and Methodology Skills
UK
Contract vacancies with a requirement for process or methodology skills 86890 88941 94016
As % of all contract IT jobs advertised in the UK 84.52% 83.93% 81.79%
Number of daily rates quoted 57867 58786 60918
UK median daily rate £450 £425 £413
Median daily rate % change year-on-year +5.88% +3.03% +3.13%
10th Percentile £281 £263 £263
90th Percentile £626 £600 £600
UK excluding London median daily rate £400 £400 £385
% change year-on-year - +3.90% +2.67%
Number of hourly rates quoted 2052 2351 2749
UK median hourly rate £23.75 £24.00 £22.50
Median hourly rate % change year-on-year -1.04% +6.67% +18.42%
10th Percentile £11.43 £11.25 £11.50
90th Percentile £49.75 £48.75 £47.71
UK excluding London median hourly rate £24.02 £24.37 £23.35
% change year-on-year -1.42% +4.35% +16.75%

Inversion of Control
Job Vacancy Trend

Job postings citing Inversion of Control as a percentage of all IT jobs advertised.

Job vacancy trend for Inversion of Control in the UK

Inversion of Control
Contractor Daily Rate Trend

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

Contractor daily rate trend for Inversion of Control in the UK

Inversion of Control
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Inversion of Control over the 6 months to 17 November 2017.

Contractor daily rate histogram for Inversion of Control in the UK

Inversion of Control
Contractor Hourly Rate Trend

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

Contractor hourly rate trend for Inversion of Control in the UK

Inversion of Control
Top 11 Contract Locations

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 UK over the 6 months to 17 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +5 114 £483 +24.92% 28
London +15 96 £500 +5.26% 10
UK excluding London -1 21 £345 -1.29% 19
North of England +35 8 £348 -0.71% 6
North West +24 8 £348 -4.14% 3
Midlands +28 4 £350 +21.74% 3
West Midlands +23 4 £350 +21.74% 2
South East 0 3 - - 7
East of England -20 3 £325 - 2
Northern Ireland - 2 £369 -
Scotland -9 1 £550 -

For the 6 months to 17 November 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 with a requirement for Inversion of Control.

1 98 (83.05%) .NET
2 79 (66.95%) C#
3 78 (66.10%) TDD
4 76 (64.41%) MVC
5 74 (62.71%) Agile Software Development
6 52 (44.07%) SQL
7 48 (40.68%) SQL Server
7 48 (40.68%) Dependency Injection
8 44 (37.29%) ASP.NET Web API
9 41 (34.75%) ASP.NET
10 39 (33.05%) JavaScript
10 39 (33.05%) Scrum
11 36 (30.51%) SOLID
12 35 (29.66%) WCF
12 35 (29.66%) WPF
13 30 (25.42%) RESTful
14 28 (23.73%) ASP.NET MVC
14 28 (23.73%) .NET Framework
14 28 (23.73%) HTML
14 28 (23.73%) Web Services
15 27 (22.88%) AngularJS
16 26 (22.03%) Microsoft
16 26 (22.03%) Git (software)
17 25 (21.19%) Continuous Integration
18 24 (20.34%) Java
18 24 (20.34%) Greenfield Project
19 23 (19.49%) CSS
19 23 (19.49%) Unit Testing
20 22 (18.64%) Microsoft Azure
21 21 (17.80%) Test Automation

Inversion of Control
Co-occurring IT Skills 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 (10.17%) Elasticsearch
2 11 (9.32%) CMS
2 11 (9.32%) Tomcat
3 10 (8.47%) EPiServer
4 2 (1.69%) Anypoint
4 2 (1.69%) Apache
4 2 (1.69%) MQSeries
4 2 (1.69%) Oracle SOA Suite
4 2 (1.69%) Sitecore CMS
5 1 (0.85%) IIS
5 1 (0.85%) JBoss
5 1 (0.85%) SharePoint
5 1 (0.85%) WebLogic
Business Applications
1 1 (0.85%) Dynamics CRM
1 1 (0.85%) RMDS
Cloud Services
1 22 (18.64%) Microsoft Azure
2 18 (15.25%) Amazon AWS
3 3 (2.54%) Cloud Computing
4 2 (1.69%) GitHub
4 2 (1.69%) npm
4 2 (1.69%) SaaS
5 1 (0.85%) Amazon EC2
5 1 (0.85%) Amazon ElastiCache
5 1 (0.85%) Amazon S3
5 1 (0.85%) Amazon SQS
5 1 (0.85%) AWS CloudFormation
5 1 (0.85%) Dynamics 365
Communications & Networking
1 3 (2.54%) HTTP
2 2 (1.69%) FTP
3 1 (0.85%) DHCP
3 1 (0.85%) DNS
3 1 (0.85%) HTTPS
3 1 (0.85%) Internet
3 1 (0.85%) SSL
3 1 (0.85%) TCP/IP
Database & Business Intelligence
1 48 (40.68%) SQL Server
2 19 (16.10%) NoSQL
3 5 (4.24%) MongoDB
3 5 (4.24%) SQL Server Analysis Services
3 5 (4.24%) SQL Server Integration Services
4 4 (3.39%) Oracle Database
4 4 (3.39%) Relational Database
5 3 (2.54%) Oracle Database 12c
6 2 (1.69%) Big Data
6 2 (1.69%) SSDT
7 1 (0.85%) Couchbase
7 1 (0.85%) Data Warehouse
7 1 (0.85%) Hadoop
7 1 (0.85%) SQL Server 2008
7 1 (0.85%) SQL Server 2012
Development Applications
1 26 (22.03%) Git (software)
2 15 (12.71%) JIRA
3 11 (9.32%) JUnit
3 11 (9.32%) Team Foundation Server
3 11 (9.32%) Visual Studio
4 10 (8.47%) TeamCity
5 9 (7.63%) Jenkins
6 8 (6.78%) Cucumber
6 8 (6.78%) Mockito
6 8 (6.78%) NUnit
7 7 (5.93%) Jasmine
7 7 (5.93%) ProC
8 6 (5.08%) Eclipse
8 6 (5.08%) Karma Test Runner
8 6 (5.08%) Maven
8 6 (5.08%) Mocha
8 6 (5.08%) Selenium
9 5 (4.24%) dotCover
9 5 (4.24%) JBehave
9 5 (4.24%) NDepend
General
1 19 (16.10%) Finance
2 18 (15.25%) Front Office
3 16 (13.56%) Banking
4 11 (9.32%) Investment Banking
5 3 (2.54%) Law
6 2 (1.69%) Prime Brokerage
7 1 (0.85%) Advertising
7 1 (0.85%) Aerospace
7 1 (0.85%) Automotive
7 1 (0.85%) Electronics
7 1 (0.85%) Retail
Job Titles
1 104 (88.14%) Developer
2 53 (44.92%) .NET Developer
3 38 (32.20%) C# Developer
4 24 (20.34%) C# .NET Developer
5 16 (13.56%) ASP.NET MVC Developer
6 13 (11.02%) Senior Developer
7 12 (10.17%) Java Developer
8 10 (8.47%) SQL Developer
8 10 (8.47%) WPF Developer
9 9 (7.63%) EPiServer Developer
9 9 (7.63%) Senior C# Developer
9 9 (7.63%) Software Engineer
10 8 (6.78%) C# WPF Developer
10 8 (6.78%) Senior .NET Developer
11 7 (5.93%) ASP.NET Developer
11 7 (5.93%) Lead Developer
11 7 (5.93%) Senior C# .NET Developer
12 6 (5.08%) DevOps Engineer
13 5 (4.24%) JavaScript Developer
13 5 (4.24%) Software Developer
Libraries, Frameworks & Software Standards
1 98 (83.05%) .NET
2 44 (37.29%) ASP.NET Web API
3 41 (34.75%) ASP.NET
4 35 (29.66%) WCF
4 35 (29.66%) WPF
5 30 (25.42%) RESTful
6 28 (23.73%) .NET Framework
6 28 (23.73%) ASP.NET MVC
6 28 (23.73%) HTML
6 28 (23.73%) Web Services
7 27 (22.88%) AngularJS
8 23 (19.49%) CSS
9 21 (17.80%) XML
10 20 (16.95%) jQuery
10 20 (16.95%) REST
11 18 (15.25%) .NET Core
12 17 (14.41%) Unity DI Container
13 16 (13.56%) Spring
14 14 (11.86%) HTML5
14 14 (11.86%) JMS
Miscellaneous
1 24 (20.34%) Greenfield Project
2 15 (12.71%) Foreign Exchange (FX)
3 12 (10.17%) Fixed Income
4 11 (9.32%) Equities
5 9 (7.63%) Market Risk
6 8 (6.78%) Derivative
6 8 (6.78%) User Experience
7 6 (5.08%) Enterprise Software
8 3 (2.54%) Analytical Skills
9 2 (1.69%) Client/Server
9 2 (1.69%) Computer Science
9 2 (1.69%) Management Information System
10 1 (0.85%) Hedge funds
Operating Systems
1 14 (11.86%) Windows
2 10 (8.47%) Linux
3 8 (6.78%) Unix
4 2 (1.69%) Windows Server 2008
4 2 (1.69%) Windows Server 2012
5 1 (0.85%) Android
Processes & Methodologies
1 78 (66.10%) TDD
2 76 (64.41%) MVC
3 74 (62.71%) Agile Software Development
4 48 (40.68%) Dependency Injection
5 39 (33.05%) Scrum
6 36 (30.51%) SOLID
7 25 (21.19%) Continuous Integration
8 23 (19.49%) Unit Testing
9 21 (17.80%) Test Automation
10 20 (16.95%) Software Engineering
11 17 (14.41%) BDD
11 17 (14.41%) Pair Programming
12 16 (13.56%) SOA
13 13 (11.02%) E-Commerce
13 13 (11.02%) Multithreading
13 13 (11.02%) Open Source
13 13 (11.02%) Web Development
14 12 (10.17%) Domain-Driven Design
14 12 (10.17%) Microservices
14 12 (10.17%) Planning Poker
Programming Languages
1 79 (66.95%) C#
2 52 (44.07%) SQL
3 39 (33.05%) JavaScript
4 24 (20.34%) Java
5 20 (16.95%) T-SQL
6 13 (11.02%) TypeScript
7 8 (6.78%) PowerShell
8 7 (5.93%) PL/SQL
9 6 (5.08%) Python
10 5 (4.24%) Bash Shell
11 3 (2.54%) Elixir
11 3 (2.54%) Erlang
11 3 (2.54%) Go
12 2 (1.69%) ES6
13 1 (0.85%) Perl
13 1 (0.85%) Scala
13 1 (0.85%) Shell Script
13 1 (0.85%) XPath
Qualifications
1 2 (1.69%) Degree
1 2 (1.69%) SC Cleared
1 2 (1.69%) Security Cleared
2 1 (0.85%) DV Cleared
Quality Assurance & Compliance
1 11 (9.32%) QA
2 1 (0.85%) Government Security Classifications
2 1 (0.85%) HMG Security Policy Framework
System Software
1 2 (1.69%) Active Directory
1 2 (1.69%) Docker
2 1 (0.85%) VMware ESXi
Systems Management
1 5 (4.24%) Ansible
1 5 (4.24%) Opscode Chef
1 5 (4.24%) Puppet
1 5 (4.24%) Terraform
2 1 (0.85%) yum
Vendors
1 26 (22.03%) Microsoft
2 15 (12.71%) Oracle
3 10 (8.47%) Infragistics
4 6 (5.08%) MuleSoft
5 4 (3.39%) IBM
6 3 (2.54%) DevExpress
6 3 (2.54%) Facebook
6 3 (2.54%) Sybase
6 3 (2.54%) TIBCO
7 2 (1.69%) Sitecore
8 1 (0.85%) Atlassian
8 1 (0.85%) Barracuda Networks
8 1 (0.85%) Bloomberg
8 1 (0.85%) Currenex
8 1 (0.85%) GigaSpaces
8 1 (0.85%) Reuters
8 1 (0.85%) Sencha
8 1 (0.85%) Splunk
8 1 (0.85%) Telerik
8 1 (0.85%) VMware