The table below looks at the statistics for Reactive Extensions skills in IT contracts advertised for the City of London region. Included is a guide to the average contractor rates offered in IT contracts that have cited Reactive Extensions over the 3 months to 26 November 2014 with a comparison to the same period in 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.

Location
3 months to
26 Nov 2014
Same period 2013 Same period 2012
Reactive Extensions (Rx)
Rank 189 222 210
Rank change year-on-year
+33 -12
Contract jobs citing Reactive Extensions 14 6 2
As % of all contract IT jobs located in the City of London 0.25% 0.085% 0.031%
As % of the Libraries, Frameworks & Software Standards category 0.83% 0.28% 0.10%
Number of daily rates quoted 11 6 2
Average daily rate
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of your Daily Rate
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£650 £625 £650
Average daily rate % change year-on-year
+4.00% -3.84%
90% offered a daily rate of more than £600 £544 £590
10% offered a daily rate of more than £700 £700 £710
UK excluding London average daily rate £375 £320 -
% change year-on-year
+17.18% -
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -
Reactive Extensions
London

The following table is for comparison with the above and provides statistics for the entire Libraries, Frameworks & Software Standards category in contract jobs advertised in the City of London region.

Libraries, Frameworks & Software Standards Category
City of London
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
1685 2126 1910
As % of all contract IT jobs located in the City of London 29.56% 30.02% 29.45%
Number of daily rates quoted 1344 1630 1477
Average daily rate £425 £425 £425
90% offered a daily rate of more than £300 £300 £275
10% offered a daily rate of more than £600 £600 £600
UK excluding London average daily rate £350 £325 £325
% change year-on-year
+7.69% -
Number of hourly rates quoted 5 10 19
Average hourly rate £30.00 £40.00 £22.50
Average hourly rate % change year-on-year
-25.00% +77.77%
90% offered a hourly rate of more than £19.50 £19.00 £13.32
10% offered a hourly rate of more than £50.00 £46.23 £49.02
UK excluding London average hourly rate £35.00 £33.00 £32.50
% change year-on-year
+6.06% +1.53%

Reactive Extensions
Jobs Demand Trend in the City of London

This chart provides a 3-month moving total of IT contractor jobs citing Reactive Extensions across the City of London region as a proportion of the total demand within the Libraries, Frameworks & Software Standards category.

Reactive Extensions Jobs Demand Trend in the City of London

Reactive Extensions
Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing Reactive Extensions across the City of London region.

Reactive Extensions Daily Rate Trend in the City of London

Reactive Extensions
Top 30 Related IT Skills in the City of London

For the 6 months to 26 November 2014, IT contractor jobs across the City of London region citing Reactive Extensions also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited Reactive Extensions.

1 23 (95.83%) WPF
2 21 (87.50%) C#
3 13 (54.17%) .NET
3 13 (54.17%) MVVM
4 12 (50.00%) Multithreading
5 10 (41.67%) Agile Software Development
5 10 (41.67%) Banking
6 9 (37.50%) Investment Banking
7 8 (33.33%) Front Office
7 8 (33.33%) Task Parallel Library
8 7 (29.17%) Web Services
8 7 (29.17%) TDD
9 6 (25.00%) HTML
9 6 (25.00%) JavaScript
9 6 (25.00%) Microsoft
10 5 (20.83%) User Experience
10 5 (20.83%) Foreign Exchange (FX)
10 5 (20.83%) Finance
10 5 (20.83%) OO
10 5 (20.83%) .NET Framework
10 5 (20.83%) Degree
10 5 (20.83%) Computer Science
11 4 (16.67%) BDD
11 4 (16.67%) HTML5
11 4 (16.67%) LINQ
11 4 (16.67%) Mathematics
11 4 (16.67%) MS Excel
11 4 (16.67%) Client/Server
11 4 (16.67%) Analytical Skills
11 4 (16.67%) Mobile App

Reactive Extensions
Top Related IT Skills in the City of London by Category

For the 6 months to 26 November 2014, IT contractor jobs across the City of London region citing Reactive Extensions also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited Reactive Extensions. Up to 20 skills are shown per category.

Application Platforms
1 1 (4.17%) Apache
Applications
1 4 (16.67%) MS Excel
Business Applications
1 1 (4.17%) Dynamics CRM
Database & Business Intelligence
1 2 (8.33%) SQL Server
2 1 (4.17%) SQL Server Reporting Services
Development Applications
1 1 (4.17%) Visual Studio
1 1 (4.17%) Subversion
1 1 (4.17%) ReSharper
1 1 (4.17%) TeamCity
General
1 10 (41.67%) Banking
2 9 (37.50%) Investment Banking
3 8 (33.33%) Front Office
4 5 (20.83%) Finance
5 1 (4.17%) Advertising
Job Titles
1 24 (100.00%) Developer
2 12 (50.00%) C# Developer
3 11 (45.83%) WPF Developer
4 8 (33.33%) Senior Developer
5 6 (25.00%) Senior WPF Developer
6 5 (20.83%) UI Developer
7 4 (16.67%) GUI Developer
8 2 (8.33%) Senior C# Developer
8 2 (8.33%) Front Office Developer
9 1 (4.17%) Microsoft Developer
9 1 (4.17%) CRM Developer
9 1 (4.17%) Agile C# Developer
9 1 (4.17%) Dynamics CRM Developer
9 1 (4.17%) UI Programmer
Libraries, Frameworks & Software Standards
1 23 (95.83%) WPF
2 13 (54.17%) .NET
3 8 (33.33%) Task Parallel Library
4 7 (29.17%) Web Services
5 6 (25.00%) HTML
6 5 (20.83%) .NET Framework
7 4 (16.67%) HTML5
7 4 (16.67%) LINQ
7 4 (16.67%) AngularJS
8 3 (12.50%) Managed Extensibility Framework
8 3 (12.50%) JMS
8 3 (12.50%) WCF
9 2 (8.33%) Rendezvous
10 1 (4.17%) SOAP
10 1 (4.17%) XML
10 1 (4.17%) WinForms
10 1 (4.17%) Esper
10 1 (4.17%) NEsper
Miscellaneous
1 5 (20.83%) User Experience
1 5 (20.83%) Foreign Exchange (FX)
1 5 (20.83%) Computer Science
2 4 (16.67%) Mathematics
2 4 (16.67%) Client/Server
2 4 (16.67%) Analytical Skills
2 4 (16.67%) Mobile App
3 3 (12.50%) Data Structures
3 3 (12.50%) Algorithms
3 3 (12.50%) Fixed Income
3 3 (12.50%) Physics
4 1 (4.17%) Management Information System
4 1 (4.17%) Derivative
4 1 (4.17%) Enterprise Software
Operating Systems
1 1 (4.17%) Windows
Processes & Methodologies
1 13 (54.17%) MVVM
2 12 (50.00%) Multithreading
3 10 (41.67%) Agile Software Development
4 7 (29.17%) TDD
5 5 (20.83%) OO
6 4 (16.67%) BDD
6 4 (16.67%) Low Latency
7 3 (12.50%) OOD
7 3 (12.50%) Algorithmic Trading
7 3 (12.50%) Unit Testing
7 3 (12.50%) OOP
7 3 (12.50%) Dependency Injection
7 3 (12.50%) Software Architecture
8 1 (4.17%) CRM
8 1 (4.17%) Workflow
8 1 (4.17%) Scrum
8 1 (4.17%) Data Management
8 1 (4.17%) Mentoring
8 1 (4.17%) Continuous Improvement
Programming Languages
1 21 (87.50%) C#
2 6 (25.00%) JavaScript
3 3 (12.50%) XAML
4 2 (8.33%) Java
5 1 (4.17%) SQL
5 1 (4.17%) Python
Qualifications
1 5 (20.83%) Degree
2 1 (4.17%) PhD
Vendors
1 6 (25.00%) Microsoft
2 2 (8.33%) TIBCO
2 2 (8.33%) Sybase
3 1 (4.17%) Oracle