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 29 April 2016 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.

3 months to
29 Apr 2016
Same period 2015 Same period 2014
Reactive Extensions (Rx)
Rank 138 191 217
Rank change year-on-year
+53 +26
Contract jobs citing Reactive Extensions 19 9 1
As % of all contract IT jobs located in the City of London 0.54% 0.16% 0.016%
As % of the Libraries, Frameworks & Software Standards category 1.68% 0.55% 0.054%
Number of daily rates quoted 19 6 0
Average daily rate £613 £588 -
Average daily rate % change year-on-year
+4.25% -
UK excluding London average daily rate £475 £350 -
% change year-on-year
+35.71% -
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
1132 1644 1862
As % of all contract IT jobs located in the City of London 32.43% 30.07% 29.95%
Number of daily rates quoted 960 1303 1403
Average daily rate £475 £425 £425
Average daily rate % change year-on-year
+11.76% -
90% offered a daily rate of more than £325 £320 £313
10% offered a daily rate of more than £601 £600 £600
UK excluding London average daily rate £375 £350 £338
% change year-on-year
+7.14% +3.70%
Number of hourly rates quoted 3 9 3
Average hourly rate £22.00 £19.72 £41.00
Average hourly rate % change year-on-year
+11.59% -51.91%
90% offered a hourly rate of more than £16.52 £16.31 £37.30
10% offered a hourly rate of more than £34.94 £60.00 £190.00
UK excluding London average hourly rate £35.00 £37.00 £35.00
% change year-on-year
-5.40% +5.71%

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 29 April 2016.

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 29 April 2016, 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 20 (100.00%) C#
2 19 (95.00%) WPF
3 18 (90.00%) .NET
4 16 (80.00%) Front Office
4 16 (80.00%) MVVM
5 15 (75.00%) Multithreading
6 14 (70.00%) Agile Software Development
7 13 (65.00%) Task Parallel Library
7 13 (65.00%) Banking
8 12 (60.00%) Investment Banking
8 12 (60.00%) TDD
9 11 (55.00%) DevExpress
10 9 (45.00%) Foreign Exchange (FX)
11 8 (40.00%) Equities
12 5 (25.00%) SQL Server
13 4 (20.00%) WCF
14 2 (10.00%) Unit Testing
14 2 (10.00%) Integration Testing
14 2 (10.00%) LINQ
14 2 (10.00%) SQL Server 2008
14 2 (10.00%) BDD
14 2 (10.00%) AngularJS
14 2 (10.00%) SQL
14 2 (10.00%) Microsoft
14 2 (10.00%) SOA
14 2 (10.00%) DataSynapse
14 2 (10.00%) .NET Framework
14 2 (10.00%) RabbitMQ
14 2 (10.00%) Entity Framework
15 1 (5.00%) SpecFlow

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

For the 6 months to 29 April 2016, 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.

Applications
1 1 (5.00%) MS Excel
Cloud Services
1 1 (5.00%) Microsoft Azure
Communications & Networking
1 1 (5.00%) AMQP
Database & Business Intelligence
1 5 (25.00%) SQL Server
2 2 (10.00%) SQL Server 2008
3 1 (5.00%) Apache Cassandra
3 1 (5.00%) Azure SQL Database
3 1 (5.00%) Big Data
3 1 (5.00%) HBase
3 1 (5.00%) NoSQL
3 1 (5.00%) Oracle Database
3 1 (5.00%) RDBMS
3 1 (5.00%) Relational Database
Development Applications
1 1 (5.00%) Git (software)
1 1 (5.00%) MSBuild
1 1 (5.00%) NUnit
1 1 (5.00%) SpecFlow
1 1 (5.00%) Subversion
1 1 (5.00%) Team Foundation Server
1 1 (5.00%) Visual Studio
General
1 16 (80.00%) Front Office
2 13 (65.00%) Banking
3 12 (60.00%) Investment Banking
4 1 (5.00%) Finance
Job Titles
1 20 (100.00%) Developer
2 18 (90.00%) C# Developer
3 16 (80.00%) Senior Developer
4 15 (75.00%) Senior C# Developer
4 15 (75.00%) WPF Developer
5 14 (70.00%) C# WPF Developer
6 13 (65.00%) Front Office Developer
6 13 (65.00%) Senior WPF Developer
7 12 (60.00%) C# Developer - Investment Banking
8 1 (5.00%) .NET Developer
8 1 (5.00%) Angular Developer
8 1 (5.00%) C# .NET Developer
8 1 (5.00%) C# GUI Developer
8 1 (5.00%) Full Stack Developer
8 1 (5.00%) GUI Developer
8 1 (5.00%) Senior GUI Developer
Libraries, Frameworks & Software Standards
1 19 (95.00%) WPF
2 18 (90.00%) .NET
3 13 (65.00%) Task Parallel Library
4 4 (20.00%) WCF
5 2 (10.00%) .NET Framework
5 2 (10.00%) AngularJS
5 2 (10.00%) Entity Framework
5 2 (10.00%) LINQ
5 2 (10.00%) RabbitMQ
6 1 (5.00%) ADO.NET
6 1 (5.00%) ASP.NET Web API
6 1 (5.00%) HTML
6 1 (5.00%) HTML5
6 1 (5.00%) JSON
6 1 (5.00%) Managed Extensibility Framework
6 1 (5.00%) NancyFx
6 1 (5.00%) React
6 1 (5.00%) SignalR
6 1 (5.00%) Unity DI Container
6 1 (5.00%) WebSockets
Miscellaneous
1 9 (45.00%) Foreign Exchange (FX)
2 8 (40.00%) Equities
3 1 (5.00%) Analytical Skills
3 1 (5.00%) Clustering
3 1 (5.00%) User Experience
Processes & Methodologies
1 16 (80.00%) MVVM
2 15 (75.00%) Multithreading
3 14 (70.00%) Agile Software Development
4 12 (60.00%) TDD
5 2 (10.00%) BDD
5 2 (10.00%) Integration Testing
5 2 (10.00%) SOA
5 2 (10.00%) Unit Testing
6 1 (5.00%) Continuous Delivery
6 1 (5.00%) Continuous Integration
6 1 (5.00%) Electronic Trading
6 1 (5.00%) Low Latency
6 1 (5.00%) Microservices
6 1 (5.00%) Migration
6 1 (5.00%) Release Management
6 1 (5.00%) Translating Business Requirements
Programming Languages
1 20 (100.00%) C#
2 2 (10.00%) SQL
3 1 (5.00%) Java
3 1 (5.00%) JavaScript
3 1 (5.00%) XAML
Vendors
1 11 (55.00%) DevExpress
2 2 (10.00%) DataSynapse
2 2 (10.00%) Microsoft
3 1 (5.00%) Oracle