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 contractor rates offered in IT contracts that have cited Reactive Extensions over the 3 months to 3 May 2016 with a comparison to the same period over 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
3 May 2016
Same period 2015 Same period 2014
Reactive Extensions (Rx)
Rank 413 393 430
Rank change year-on-year
-20 +37
Contract jobs citing Reactive Extensions 31 27 4
As % of all contract IT jobs located in London 0.14% 0.12% 0.017%
As % of the Libraries, Frameworks & Software Standards category 0.43% 0.40% 0.056%
Number of daily rates quoted 29 22 3
Median daily rate £613 £625 £300
Median daily rate % change year-on-year
-2.00% +108.33%
UK excluding London median daily rate £475 £350 -
% change year-on-year
+35.71% -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median 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
7204 6800 7089
As % of all contract IT jobs located in London 31.54% 30.45% 29.91%
Number of daily rates quoted 5467 4827 5146
Median daily rate £450 £425 £400
Median daily rate % change year-on-year
+5.88% +6.25%
90% offered a daily rate of more than £325 £310 £300
10% offered a daily rate of more than £600 £575 £550
UK excluding London median daily rate £375 £350 £336
% change year-on-year
+7.14% +4.16%
Number of hourly rates quoted 25 34 30
Median hourly rate £22.00 £22.18 £43.00
Median hourly rate % change year-on-year
-0.81% -48.41%
90% offered a hourly rate of more than £15.91 £19.00 £30.00
10% offered a hourly rate of more than £50.63 £55.00 £175.00
UK excluding London median hourly rate £34.50 £37.00 £35.00
% change year-on-year
-6.75% +5.71%

Reactive Extensions
Jobs Demand Trend in London

The demand trend of contract jobs across the London region citing Reactive Extensions as a proportion of all IT contracts with a match in 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 3 May 2016.

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 median contractor rates quoted in IT jobs citing Reactive Extensions within the London region over the 3 months to 3 May 2016. 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
(Click see detailed
statistics and trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +43 18 £613 +4.25%
Reactive Extensions
England

Reactive Extensions
Top 30 Related IT Skills in London

For the 6 months to 3 May 2016, IT contractor jobs citing Reactive Extensions 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 Reactive Extensions.

1 61 (92.42%) C#
2 55 (83.33%) .NET
3 46 (69.70%) WPF
4 38 (57.58%) MVVM
5 33 (50.00%) Front Office
6 31 (46.97%) Agile Software Development
7 25 (37.88%) Multithreading
8 23 (34.85%) BDD
8 23 (34.85%) Foreign Exchange (FX)
9 22 (33.33%) TDD
10 20 (30.30%) SQL
10 20 (30.30%) AngularJS
11 19 (28.79%) Electronic Trading
11 19 (28.79%) JavaScript
11 19 (28.79%) Banking
12 18 (27.27%) Microsoft Azure
13 17 (25.76%) Task Parallel Library
13 17 (25.76%) SpecFlow
13 17 (25.76%) React
13 17 (25.76%) Microsoft
13 17 (25.76%) ASP.NET
14 16 (24.24%) MVC
14 16 (24.24%) Investment Banking
14 16 (24.24%) SignalR
14 16 (24.24%) ASP.NET Web API
14 16 (24.24%) Azure SQL Database
14 16 (24.24%) MongoDB
15 15 (22.73%) Complex Event Processing
15 15 (22.73%) Finance
16 13 (19.70%) ASP.NET MVC

Reactive Extensions
Top Related 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:

Applications
1 3 (4.55%) MS Excel
Business Applications
1 3 (4.55%) RMDS
2 2 (3.03%) ION MarketView
Cloud Services
1 18 (27.27%) Microsoft Azure
2 9 (13.64%) GitHub
Communications & Networking
1 1 (1.52%) AMQP
Database & Business Intelligence
1 16 (24.24%) Azure SQL Database
1 16 (24.24%) MongoDB
2 13 (19.70%) SQL Server
3 5 (7.58%) Apache Cassandra
3 5 (7.58%) Big Data
3 5 (7.58%) HBase
3 5 (7.58%) Oracle Database
3 5 (7.58%) RDBMS
3 5 (7.58%) Relational Database
4 3 (4.55%) SQL Server 2008
5 2 (3.03%) NoSQL
6 1 (1.52%) SQL Server 2012
Development Applications
1 17 (25.76%) SpecFlow
2 13 (19.70%) Git (software)
3 10 (15.15%) NUnit
4 9 (13.64%) Subversion
5 6 (9.09%) Visual Studio
6 5 (7.58%) MSBuild
6 5 (7.58%) Team Foundation Server
7 4 (6.06%) TeamCity
General
1 33 (50.00%) Front Office
2 19 (28.79%) Banking
3 16 (24.24%) Investment Banking
4 15 (22.73%) Finance
Job Titles
1 65 (98.48%) Developer
2 56 (84.85%) C# Developer
3 35 (53.03%) WPF Developer
4 30 (45.45%) C# WPF Developer
5 19 (28.79%) Front Office Developer
6 17 (25.76%) Senior Developer
7 16 (24.24%) Senior C# Developer
8 14 (21.21%) Senior WPF Developer
9 13 (19.70%) JavaScript Developer
10 12 (18.18%) C# Developer - Investment Banking
10 12 (18.18%) C# GUI Developer
10 12 (18.18%) Full Stack Developer
10 12 (18.18%) GUI Developer
11 10 (15.15%) .NET Developer
12 9 (13.64%) Azure Developer
12 9 (13.64%) C# .NET Developer
13 8 (12.12%) C# Developer - Electronic Trading
13 8 (12.12%) Electronic Trading Developer
14 7 (10.61%) ASP.NET Developer
14 7 (10.61%) C# ASP.NET Developer
Libraries, Frameworks & Software Standards
1 55 (83.33%) .NET
2 46 (69.70%) WPF
3 20 (30.30%) AngularJS
4 17 (25.76%) ASP.NET
4 17 (25.76%) React
4 17 (25.76%) Task Parallel Library
5 16 (24.24%) ASP.NET Web API
5 16 (24.24%) SignalR
6 13 (19.70%) ASP.NET MVC
7 11 (16.67%) .NET Framework
8 10 (15.15%) WCF
9 9 (13.64%) Unity DI Container
10 6 (9.09%) LINQ
11 5 (7.58%) ADO.NET
11 5 (7.58%) JSON
11 5 (7.58%) Managed Extensibility Framework
11 5 (7.58%) SOAP
12 4 (6.06%) Protocol Buffers
13 3 (4.55%) Rendezvous
14 2 (3.03%) HTML
Miscellaneous
1 23 (34.85%) Foreign Exchange (FX)
2 10 (15.15%) Fixed Income
3 9 (13.64%) Blog
3 9 (13.64%) Equities
4 8 (12.12%) User Experience
5 5 (7.58%) Analytical Skills
5 5 (7.58%) Clustering
6 4 (6.06%) Derivative
6 4 (6.06%) Fintech
7 1 (1.52%) Animation
7 1 (1.52%) Computer Science
Operating Systems
1 1 (1.52%) Android
Processes & Methodologies
1 38 (57.58%) MVVM
2 31 (46.97%) Agile Software Development
3 25 (37.88%) Multithreading
4 23 (34.85%) BDD
5 22 (33.33%) TDD
6 19 (28.79%) Electronic Trading
7 16 (24.24%) MVC
8 15 (22.73%) Complex Event Processing
9 13 (19.70%) OO
10 10 (15.15%) Unit Testing
11 8 (12.12%) OOD
11 8 (12.12%) Scrum
12 7 (10.61%) CQRS
13 5 (7.58%) Continuous Delivery
13 5 (7.58%) Continuous Integration
13 5 (7.58%) Release Management
14 4 (6.06%) E-Commerce
14 4 (6.06%) Open Source
15 3 (4.55%) Translating Business Requirements
16 2 (3.03%) Microservices
Programming Languages
1 61 (92.42%) C#
2 20 (30.30%) SQL
3 19 (28.79%) JavaScript
4 12 (18.18%) XAML
5 7 (10.61%) Java
6 2 (3.03%) PHP
7 1 (1.52%) R
7 1 (1.52%) VBA
Qualifications
1 5 (7.58%) Degree
Vendors
1 17 (25.76%) Microsoft
2 11 (16.67%) DevExpress
3 8 (12.12%) Oracle
4 3 (4.55%) ION Trading
4 3 (4.55%) Reuters
4 3 (4.55%) TIBCO
5 2 (3.03%) DataSynapse