Period
to 20 November 2017

The following table provides summary statistics for contract job vacancies advertised in London 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 20 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)
England > London
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 537 539 539
Rank change year-on-year +2 0 -7
Contract jobs citing Inversion of Control 95 77 79
As % of all contract IT jobs advertised in London 0.20% 0.17% 0.17%
As % of the Processes & Methodologies category 0.23% 0.20% 0.20%
Number of daily rates quoted 82 57 70
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £407 £363 £325
90th Percentile £625 £570 £596
England median daily rate £479 £380 £400
% change year-on-year +25.99% -5.00% -5.88%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England 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 advertised in London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Contract vacancies with a requirement for process or methodology skills 40583 38438 39314
As % of all contract IT jobs advertised in London 86.96% 86.23% 83.83%
Number of daily rates quoted 29509 27575 28097
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £305 £288
90th Percentile £675 £642 £638
England median daily rate £450 £425 £423
% change year-on-year +5.88% +0.59% +5.63%
Number of hourly rates quoted 378 398 474
London median hourly rate £22.50 £22.00 £20.00
Median hourly rate % change year-on-year +2.27% +10.00% +11.11%
10th Percentile £13.31 £12.25 £11.25
90th Percentile £52.15 £50.84 £50.69
England median hourly rate £24.00 £24.42 £22.50
% change year-on-year -1.72% +8.53% +18.42%

Inversion of Control
Job Vacancy Trend in London

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

Job vacancy trend for Inversion of Control in London

Inversion of Control
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Inversion of Control in London

Inversion of Control
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Inversion of Control in London over the 6 months to 20 November 2017.

Contractor daily rate histogram for Inversion of Control 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 6 months to 20 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
Central London -9 14 £519 -1.19% 4
East London -4 1 £525 +10.53%
Inversion of Control
England

For the 6 months to 20 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 across the London region with a requirement for Inversion of Control.

1 79 (83.16%) .NET
2 70 (73.68%) TDD
3 66 (69.47%) Agile Software Development
4 65 (68.42%) C#
5 58 (61.05%) MVC
6 42 (44.21%) SQL
7 39 (41.05%) ASP.NET Web API
8 38 (40.00%) Dependency Injection
9 37 (38.95%) SQL Server
10 36 (37.89%) Scrum
11 35 (36.84%) ASP.NET
12 32 (33.68%) JavaScript
13 31 (32.63%) WPF
14 30 (31.58%) WCF
15 27 (28.42%) RESTful
16 25 (26.32%) ASP.NET MVC
16 25 (26.32%) Web Services
16 25 (26.32%) SOLID
17 24 (25.26%) Git (software)
18 23 (24.21%) Continuous Integration
19 22 (23.16%) .NET Framework
19 22 (23.16%) Microsoft Azure
20 21 (22.11%) AngularJS
20 21 (22.11%) Java
21 20 (21.05%) XML
21 20 (21.05%) Software Engineering
22 19 (20.00%) Microsoft
23 18 (18.95%) T-SQL
23 18 (18.95%) Amazon AWS
23 18 (18.95%) Test Automation

Inversion of Control
Co-occurring 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 12 (12.63%) Elasticsearch
2 11 (11.58%) CMS
3 10 (10.53%) EPiServer
3 10 (10.53%) Tomcat
4 2 (2.11%) MQSeries
4 2 (2.11%) Sitecore CMS
5 1 (1.05%) Apache
5 1 (1.05%) IIS
5 1 (1.05%) JBoss
5 1 (1.05%) Oracle SOA Suite
5 1 (1.05%) SharePoint
5 1 (1.05%) WebLogic
Business Applications
1 1 (1.05%) Dynamics CRM
1 1 (1.05%) RMDS
Cloud Services
1 22 (23.16%) Microsoft Azure
2 18 (18.95%) Amazon AWS
3 3 (3.16%) Cloud Computing
4 2 (2.11%) SaaS
5 1 (1.05%) Amazon EC2
5 1 (1.05%) Amazon ElastiCache
5 1 (1.05%) Amazon S3
5 1 (1.05%) Amazon SQS
5 1 (1.05%) AWS CloudFormation
5 1 (1.05%) Dynamics 365
Communications & Networking
1 1 (1.05%) DHCP
1 1 (1.05%) DNS
1 1 (1.05%) HTTP
1 1 (1.05%) Internet
1 1 (1.05%) TCP/IP
Database & Business Intelligence
1 37 (38.95%) SQL Server
2 15 (15.79%) NoSQL
3 5 (5.26%) MongoDB
3 5 (5.26%) SQL Server Analysis Services
4 4 (4.21%) SQL Server Integration Services
5 3 (3.16%) Oracle Database
5 3 (3.16%) Oracle Database 12c
5 3 (3.16%) Relational Database
6 2 (2.11%) Big Data
7 1 (1.05%) Couchbase
7 1 (1.05%) SQL Server 2008
7 1 (1.05%) SSDT
Development Applications
1 24 (25.26%) Git (software)
2 10 (10.53%) JUnit
2 10 (10.53%) Visual Studio
3 9 (9.47%) JIRA
4 8 (8.42%) Mockito
4 8 (8.42%) TeamCity
5 7 (7.37%) Jenkins
5 7 (7.37%) Team Foundation Server
6 6 (6.32%) Eclipse
6 6 (6.32%) Jasmine
6 6 (6.32%) Karma Test Runner
6 6 (6.32%) Mocha
6 6 (6.32%) ProC
7 5 (5.26%) Cucumber
7 5 (5.26%) dotCover
7 5 (5.26%) JBehave
7 5 (5.26%) Maven
7 5 (5.26%) NDepend
7 5 (5.26%) Selenium
8 4 (4.21%) Octopus Deploy
General
1 17 (17.89%) Front Office
2 16 (16.84%) Finance
3 15 (15.79%) Banking
4 10 (10.53%) Investment Banking
5 3 (3.16%) Law
6 2 (2.11%) Prime Brokerage
7 1 (1.05%) Advertising
7 1 (1.05%) Electronics
7 1 (1.05%) Retail
Job Titles
1 83 (87.37%) Developer
2 41 (43.16%) .NET Developer
3 30 (31.58%) C# Developer
4 17 (17.89%) C# .NET Developer
5 12 (12.63%) Java Developer
6 11 (11.58%) ASP.NET MVC Developer
6 11 (11.58%) Senior Developer
7 9 (9.47%) EPiServer Developer
7 9 (9.47%) Software Engineer
8 8 (8.42%) SQL Developer
8 8 (8.42%) WPF Developer
9 7 (7.37%) C# WPF Developer
9 7 (7.37%) Senior C# Developer
10 6 (6.32%) ASP.NET Developer
10 6 (6.32%) Lead Developer
10 6 (6.32%) Senior .NET Developer
11 5 (5.26%) DevOps Engineer
11 5 (5.26%) JavaScript Developer
11 5 (5.26%) Senior C# .NET Developer
11 5 (5.26%) Software Developer
Libraries, Frameworks & Software Standards
1 79 (83.16%) .NET
2 39 (41.05%) ASP.NET Web API
3 35 (36.84%) ASP.NET
4 31 (32.63%) WPF
5 30 (31.58%) WCF
6 27 (28.42%) RESTful
7 25 (26.32%) ASP.NET MVC
7 25 (26.32%) Web Services
8 22 (23.16%) .NET Framework
9 21 (22.11%) AngularJS
10 20 (21.05%) XML
11 17 (17.89%) .NET Core
12 16 (16.84%) HTML
12 16 (16.84%) REST
13 14 (14.74%) Unity DI Container
14 13 (13.68%) Spring
15 12 (12.63%) Hibernate
15 12 (12.63%) JMS
15 12 (12.63%) React
16 11 (11.58%) CSS
Miscellaneous
1 15 (15.79%) Foreign Exchange (FX)
1 15 (15.79%) Greenfield Project
2 11 (11.58%) Equities
2 11 (11.58%) Fixed Income
3 9 (9.47%) Market Risk
4 8 (8.42%) User Experience
5 7 (7.37%) Derivative
6 5 (5.26%) Enterprise Software
7 2 (2.11%) Analytical Skills
7 2 (2.11%) Management Information System
8 1 (1.05%) Client/Server
8 1 (1.05%) Hedge funds
Operating Systems
1 14 (14.74%) Windows
2 10 (10.53%) Linux
3 8 (8.42%) Unix
4 2 (2.11%) Windows Server 2008
4 2 (2.11%) Windows Server 2012
5 1 (1.05%) Android
Processes & Methodologies
1 70 (73.68%) TDD
2 66 (69.47%) Agile Software Development
3 58 (61.05%) MVC
4 38 (40.00%) Dependency Injection
5 36 (37.89%) Scrum
6 25 (26.32%) SOLID
7 23 (24.21%) Continuous Integration
8 20 (21.05%) Software Engineering
9 18 (18.95%) Test Automation
9 18 (18.95%) Unit Testing
10 17 (17.89%) Pair Programming
11 14 (14.74%) SOA
12 13 (13.68%) BDD
12 13 (13.68%) Multithreading
12 13 (13.68%) Open Source
13 12 (12.63%) E-Commerce
13 12 (12.63%) Planning Poker
14 11 (11.58%) Domain-Driven Design
15 10 (10.53%) Microservices
15 10 (10.53%) MVVM
Programming Languages
1 65 (68.42%) C#
2 42 (44.21%) SQL
3 32 (33.68%) JavaScript
4 21 (22.11%) Java
5 18 (18.95%) T-SQL
6 8 (8.42%) PowerShell
7 6 (6.32%) Python
8 5 (5.26%) PL/SQL
9 4 (4.21%) Bash Shell
10 3 (3.16%) TypeScript
11 2 (2.11%) ES6
12 1 (1.05%) Perl
12 1 (1.05%) Scala
12 1 (1.05%) Shell Script
12 1 (1.05%) XPath
Qualifications
1 2 (2.11%) SC Cleared
1 2 (2.11%) Security Cleared
2 1 (1.05%) DV Cleared
Quality Assurance & Compliance
1 11 (11.58%) QA
2 1 (1.05%) Government Security Classifications
2 1 (1.05%) HMG Security Policy Framework
System Software
1 2 (2.11%) Active Directory
1 2 (2.11%) Docker
2 1 (1.05%) VMware ESXi
Systems Management
1 5 (5.26%) Ansible
1 5 (5.26%) Opscode Chef
1 5 (5.26%) Puppet
1 5 (5.26%) Terraform
2 1 (1.05%) yum
Vendors
1 19 (20.00%) Microsoft
2 13 (13.68%) Oracle
3 8 (8.42%) Infragistics
4 4 (4.21%) IBM
4 4 (4.21%) MuleSoft
5 3 (3.16%) Facebook
5 3 (3.16%) Sybase
5 3 (3.16%) TIBCO
6 2 (2.11%) DevExpress
6 2 (2.11%) Sitecore
7 1 (1.05%) Atlassian
7 1 (1.05%) Barracuda Networks
7 1 (1.05%) Bloomberg
7 1 (1.05%) Currenex
7 1 (1.05%) FXall
7 1 (1.05%) GigaSpaces
7 1 (1.05%) Reuters
7 1 (1.05%) Sencha
7 1 (1.05%) Splunk
7 1 (1.05%) VMware