The table below looks at the statistics for Reactive Extensions skills in IT contracts advertised for the 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 27 February 2015 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
27 Feb 2015
Same period 2014 Same period 2013
Reactive Extensions (Rx)
Rank 382 374 363
Rank change year-on-year
-8 -11
Contract jobs citing Reactive Extensions 17 10 8
As % of all contract IT jobs located in London 0.080% 0.046% 0.040%
As % of the Libraries, Frameworks & Software Standards category 0.27% 0.16% 0.14%
Number of daily rates quoted 11 9 8
Average daily rate
Keep up to 90%
of your Daily Rate
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£575 £450 £600
Average daily rate % change year-on-year
+27.77% -25.00%
90% offered a daily rate of more than £450 £300 £570
10% offered a daily rate of more than £650 £615 £658
UK excluding London average daily rate £344 £400 £294
% change year-on-year
-14.06% +36.17%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -
Reactive Extensions
England

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 London region.

Libraries, Frameworks & Software Standards Category
London
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
6284 6396 5891
As % of all contract IT jobs located in London 29.60% 29.43% 29.76%
Number of daily rates quoted 4620 4495 4286
Average daily rate £425 £400 £400
Average daily rate % change year-on-year
+6.25% -
90% offered a daily rate of more than £313 £295 £288
10% offered a daily rate of more than £575 £550 £575
UK excluding London average daily rate £350 £325 £325
% change year-on-year
+7.69% -
Number of hourly rates quoted 22 56 52
Average hourly rate £29.00 £35.00 £19.80
Average hourly rate % change year-on-year
-17.14% +76.81%
90% offered a hourly rate of more than £20.00 £27.50 £17.00
10% offered a hourly rate of more than £55.00 £82.25 £84.30
UK excluding London average hourly rate £35.00 £34.00 £35.00
% change year-on-year
+2.94% -2.85%

Reactive Extensions
Jobs Demand Trend in London

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

Reactive Extensions Jobs Demand Trend in London

Reactive Extensions
Daily Rate Trend in London

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

Reactive Extensions Daily Rate Trend in London

Reactive Extensions
Daily Rate Histogram in London

This chart provides a histogram of daily rates quoted in contract IT jobs citing Reactive Extensions across the London region over the 3 months to 27 February 2015.

Reactive Extensions Daily Rate Histogram in London

Reactive Extensions
Contract Job Locations in London

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing Reactive Extensions within the London region over the 3 months to 27 February 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +18 4 £625 -19.35% 1
Reactive Extensions
England

Reactive Extensions
Top 30 Related IT Skills in London

For the 6 months to 27 February 2015, IT contractor jobs across the 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 38 (95.00%) C#
2 34 (85.00%) WPF
3 29 (72.50%) .NET
4 26 (65.00%) MVVM
5 20 (50.00%) Front Office
6 17 (42.50%) Agile Software Development
6 17 (42.50%) Banking
7 16 (40.00%) TDD
8 15 (37.50%) Finance
9 14 (35.00%) Multithreading
9 14 (35.00%) Investment Banking
10 13 (32.50%) HTML
10 13 (32.50%) JavaScript
11 12 (30.00%) HTML5
12 11 (27.50%) Microsoft
12 11 (27.50%) Foreign Exchange (FX)
13 10 (25.00%) OO
13 10 (25.00%) User Experience
14 9 (22.50%) AngularJS
14 9 (22.50%) XAML
15 8 (20.00%) Web Services
15 8 (20.00%) SQL
15 8 (20.00%) Task Parallel Library
15 8 (20.00%) WCF
16 7 (17.50%) Degree
16 7 (17.50%) Low Latency
16 7 (17.50%) Managed Extensibility Framework
16 7 (17.50%) MS Excel
17 5 (12.50%) Windows
17 5 (12.50%) SQL Server Reporting Services

Reactive Extensions
Top Related IT Skills in London by Category

For the 6 months to 27 February 2015, IT contractor jobs across the 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 3 (7.50%) SharePoint
2 2 (5.00%) Node.js
3 1 (2.50%) Oracle Coherence
Applications
1 7 (17.50%) MS Excel
Business Applications
1 3 (7.50%) Dynamics CRM
2 1 (2.50%) Summit
Communications & Networking
1 2 (5.00%) SMTP
Database & Business Intelligence
1 5 (12.50%) SQL Server Reporting Services
2 4 (10.00%) Relational Database
3 3 (7.50%) SQL Server
3 3 (7.50%) Data Mining
4 2 (5.00%) SQL Server Integration Services
Development Applications
1 4 (10.00%) NUnit
1 4 (10.00%) Subversion
2 3 (7.50%) Git (software)
2 3 (7.50%) Team Foundation Server
2 3 (7.50%) Jenkins
3 2 (5.00%) NSubstitute
3 2 (5.00%) SpecFlow
4 1 (2.50%) Visual Studio
4 1 (2.50%) FxCop
4 1 (2.50%) StyleCop
4 1 (2.50%) JIRA
4 1 (2.50%) ReSharper
4 1 (2.50%) TeamCity
General
1 20 (50.00%) Front Office
2 17 (42.50%) Banking
3 15 (37.50%) Finance
4 14 (35.00%) Investment Banking
Job Titles
1 39 (97.50%) Developer
2 24 (60.00%) C# Developer
3 19 (47.50%) WPF Developer
4 11 (27.50%) Senior Developer
5 8 (20.00%) UI Developer
6 5 (12.50%) UI Programmer
6 5 (12.50%) .NET Developer
6 5 (12.50%) Senior C# Developer
6 5 (12.50%) Senior .NET Developer
7 3 (7.50%) Front Office Developer
7 3 (7.50%) Senior WPF Developer
7 3 (7.50%) GUI Developer
7 3 (7.50%) Dynamics CRM Developer
7 3 (7.50%) Agile .NET Developer
7 3 (7.50%) Agile C# Developer
7 3 (7.50%) CRM Developer
7 3 (7.50%) C# .NET Developer
8 1 (2.50%) Technical Leader
8 1 (2.50%) Software Developer
Libraries, Frameworks & Software Standards
1 34 (85.00%) WPF
2 29 (72.50%) .NET
3 13 (32.50%) HTML
4 12 (30.00%) HTML5
5 9 (22.50%) AngularJS
6 8 (20.00%) WCF
6 8 (20.00%) Task Parallel Library
6 8 (20.00%) Web Services
7 7 (17.50%) Managed Extensibility Framework
8 5 (12.50%) LINQ
9 4 (10.00%) Silverlight
9 4 (10.00%) .NET Framework
9 4 (10.00%) XML
10 3 (7.50%) JMS
10 3 (7.50%) SOAP
10 3 (7.50%) JSON
11 2 (5.00%) DCOM
11 2 (5.00%) CSS
11 2 (5.00%) Rendezvous
11 2 (5.00%) ActiveX
Miscellaneous
1 11 (27.50%) Foreign Exchange (FX)
2 10 (25.00%) User Experience
3 5 (12.50%) Data Structures
3 5 (12.50%) Algorithms
3 5 (12.50%) Derivative
3 5 (12.50%) Mathematics
4 4 (10.00%) Physics
4 4 (10.00%) Computer Science
4 4 (10.00%) Fixed Income
4 4 (10.00%) Analytical Skills
5 3 (7.50%) Credit Derivative
5 3 (7.50%) Client/Server
5 3 (7.50%) Mobile App
6 2 (5.00%) Enterprise Software
6 2 (5.00%) CUDA
7 1 (2.50%) Inversion of Control
7 1 (2.50%) Economics
7 1 (2.50%) Equity Derivative
7 1 (2.50%) Equities
7 1 (2.50%) Management Information System
Operating Systems
1 5 (12.50%) Windows
Processes & Methodologies
1 26 (65.00%) MVVM
2 17 (42.50%) Agile Software Development
3 16 (40.00%) TDD
4 14 (35.00%) Multithreading
5 10 (25.00%) OO
6 7 (17.50%) Low Latency
7 5 (12.50%) Algorithmic Trading
8 4 (10.00%) Software Engineering
8 4 (10.00%) Continuous Integration
8 4 (10.00%) Pair Programming
8 4 (10.00%) OOD
8 4 (10.00%) Scrum
8 4 (10.00%) Technical Analysis
8 4 (10.00%) BDD
8 4 (10.00%) Continuous Improvement
9 3 (7.50%) Software Architecture
9 3 (7.50%) Workflow
9 3 (7.50%) CRM
9 3 (7.50%) OOP
9 3 (7.50%) Data Modelling
Programming Languages
1 38 (95.00%) C#
2 13 (32.50%) JavaScript
3 9 (22.50%) XAML
4 8 (20.00%) SQL
5 2 (5.00%) VB
5 2 (5.00%) C++
5 2 (5.00%) VBA
5 2 (5.00%) VB6
5 2 (5.00%) F#
6 1 (2.50%) Python
6 1 (2.50%) Java
6 1 (2.50%) VB.NET
Qualifications
1 7 (17.50%) Degree
2 3 (7.50%) Microsoft Certification
2 3 (7.50%) MCITP
3 1 (2.50%) PhD
System Software
1 2 (5.00%) Active Directory
Vendors
1 11 (27.50%) Microsoft
2 3 (7.50%) Sybase
2 3 (7.50%) DevExpress
3 2 (5.00%) TIBCO
3 2 (5.00%) Oracle
4 1 (2.50%) Calypso
4 1 (2.50%) Bloomberg
4 1 (2.50%) Syncfusion