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 4 September 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
4 Sep 2015
Same period 2014 Same period 2013
Reactive Extensions (Rx)
Rank 182 193 219
Rank change year-on-year
+11 +26
Contract jobs citing Reactive Extensions 14 11 7
As % of all contract IT jobs located in the City of London 0.27% 0.19% 0.098%
As % of the Libraries, Frameworks & Software Standards category 0.87% 0.63% 0.32%
Number of daily rates quoted 13 9 6
Average daily rate
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£625 £600 £650
Average daily rate % change year-on-year
+4.16% -7.69%
90% offered a daily rate of more than £605 £528 £625
10% offered a daily rate of more than £675 £655 £700
UK excluding London average daily rate £399 £400 £300
% change year-on-year
-0.25% +33.33%
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
1604 1735 2171
As % of all contract IT jobs located in the City of London 30.49% 29.87% 30.38%
Number of daily rates quoted 1318 1291 1627
Average daily rate £450 £425 £425
Average daily rate % change year-on-year
+5.88% -
90% offered a daily rate of more than £325 £308 £296
10% offered a daily rate of more than £625 £600 £600
UK excluding London average daily rate £365 £350 £325
% change year-on-year
+4.28% +7.69%
Number of hourly rates quoted 8 12 14
Average hourly rate £40.00 £45.00 £35.00
Average hourly rate % change year-on-year
-11.11% +28.57%
90% offered a hourly rate of more than £18.70 £16.00 £25.00
10% offered a hourly rate of more than £187.50 £45.00 £58.20
UK excluding London average hourly rate £39.50 £35.00 £35.00
% change year-on-year
+12.85% -

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
Daily Rate Histogram in the City of London

This chart provides a histogram of daily rates quoted in contract IT jobs citing Reactive Extensions across the City of London region over the 3 months to 4 September 2015.

Reactive Extensions Daily Rate Histogram in the City of London

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

For the 6 months to 4 September 2015, 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 22 (95.65%) C#
1 22 (95.65%) WPF
2 19 (82.61%) Front Office
3 16 (69.57%) Foreign Exchange (FX)
4 13 (56.52%) MVVM
5 12 (52.17%) Agile Software Development
6 10 (43.48%) .NET
7 9 (39.13%) TDD
8 8 (34.78%) Multithreading
9 7 (30.43%) Banking
9 7 (30.43%) Low Latency
10 6 (26.09%) DevExpress
10 6 (26.09%) LINQ
11 5 (21.74%) Mathematics
11 5 (21.74%) Physics
11 5 (21.74%) Finance
11 5 (21.74%) SQL
12 4 (17.39%) Unit Testing
12 4 (17.39%) Algorithmic Trading
12 4 (17.39%) Investment Banking
12 4 (17.39%) FX Algorithmic Trading
13 3 (13.04%) TIBCO
13 3 (13.04%) SQL Server
14 2 (8.70%) Rendezvous
14 2 (8.70%) Electronic Trading
14 2 (8.70%) Git (software)
14 2 (8.70%) Enterprise Software
14 2 (8.70%) Managed Extensibility Framework
15 1 (4.35%) SpecFlow
15 1 (4.35%) AngularJS

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

For the 6 months to 4 September 2015, 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.

Business Applications
1 1 (4.35%) RMDS
Cloud Services
1 1 (4.35%) Microsoft Azure
Database & Business Intelligence
1 3 (13.04%) SQL Server
2 1 (4.35%) MongoDB
2 1 (4.35%) Azure SQL Database
Development Applications
1 2 (8.70%) Git (software)
2 1 (4.35%) Moq
2 1 (4.35%) SpecFlow
2 1 (4.35%) NUnit
2 1 (4.35%) Subversion
General
1 19 (82.61%) Front Office
2 7 (30.43%) Banking
3 5 (21.74%) Finance
4 4 (17.39%) Investment Banking
Job Titles
1 23 (100.00%) Developer
2 16 (69.57%) C# Developer
3 15 (65.22%) Senior Developer
4 10 (43.48%) WPF Developer
5 8 (34.78%) Senior C# Developer
6 7 (30.43%) Senior WPF Developer
7 4 (17.39%) GUI Developer
8 1 (4.35%) C# .NET Developer
8 1 (4.35%) Full Stack Developer
8 1 (4.35%) Senior .NET Developer
8 1 (4.35%) .NET Developer
Libraries, Frameworks & Software Standards
1 22 (95.65%) WPF
2 10 (43.48%) .NET
3 6 (26.09%) LINQ
4 2 (8.70%) Rendezvous
4 2 (8.70%) Managed Extensibility Framework
5 1 (4.35%) AngularJS
5 1 (4.35%) SignalR
5 1 (4.35%) ASP.NET Web API
5 1 (4.35%) React
5 1 (4.35%) ASP.NET
5 1 (4.35%) HTML
5 1 (4.35%) Middleware
5 1 (4.35%) WinForms
5 1 (4.35%) FIX Protocol
5 1 (4.35%) ASP.NET MVC
5 1 (4.35%) HTML5
Miscellaneous
1 16 (69.57%) Foreign Exchange (FX)
2 5 (21.74%) Mathematics
2 5 (21.74%) Physics
3 2 (8.70%) Enterprise Software
4 1 (4.35%) Hedge funds
4 1 (4.35%) Management Information System
4 1 (4.35%) Credit Derivative
4 1 (4.35%) Derivative
Processes & Methodologies
1 13 (56.52%) MVVM
2 12 (52.17%) Agile Software Development
3 9 (39.13%) TDD
4 8 (34.78%) Multithreading
5 7 (30.43%) Low Latency
6 4 (17.39%) FX Algorithmic Trading
6 4 (17.39%) Algorithmic Trading
6 4 (17.39%) Unit Testing
7 2 (8.70%) Electronic Trading
8 1 (4.35%) Reverse Engineering
8 1 (4.35%) Risk Analysis
8 1 (4.35%) Complex Event Processing
8 1 (4.35%) BDD
8 1 (4.35%) Software Engineering
8 1 (4.35%) Business Analysis
8 1 (4.35%) OO
8 1 (4.35%) E-Commerce
8 1 (4.35%) MVC
8 1 (4.35%) Risk Management
8 1 (4.35%) Workflow
Programming Languages
1 22 (95.65%) C#
2 5 (21.74%) SQL
3 1 (4.35%) T-SQL
3 1 (4.35%) XAML
3 1 (4.35%) Java
3 1 (4.35%) JavaScript
Vendors
1 6 (26.09%) DevExpress
2 3 (13.04%) TIBCO
3 1 (4.35%) ION Trading
3 1 (4.35%) Typemock
3 1 (4.35%) Oracle
City, London
TEKsystems
Rate: £650 - £700 per day
Posted: 2 days ago
City of London
Huxley Banking & Financial Services
Rate: £350 - £450 per day + competitive
Posted: 18 days ago