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 29 September 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
29 Sep 2016
Same period 2015 Same period 2014
Reactive Extensions (Rx)
Rank 432 411 415
Rank change year-on-year
-21 +4
Contract jobs citing Reactive Extensions 11 28 26
As % of all contract IT jobs located in London 0.048% 0.12% 0.11%
As % of the Libraries, Frameworks & Software Standards category 0.14% 0.37% 0.34%
Number of daily rates quoted 10 25 21
Median daily rate £650 £500 £600
Median daily rate % change year-on-year
+30.00% -16.66%
90% offered a daily rate of more than £489 £360 £525
10% offered a daily rate of more than £664 £665 £700
UK excluding London median daily rate £425 £398 £410
% change year-on-year
+6.78% -2.92%
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
7940 7501 7555
As % of all contract IT jobs located in London 34.78% 32.06% 30.69%
Number of daily rates quoted 5882 5583 5482
Median daily rate £450 £438 £424
Median daily rate % change year-on-year
+2.85% +3.18%
90% offered a daily rate of more than £325 £313 £300
10% offered a daily rate of more than £575 £600 £575
UK excluding London median daily rate £375 £375 £350
% change year-on-year
- +7.14%
Number of hourly rates quoted 38 50 40
Median hourly rate £46.50 £22.12 £40.00
Median hourly rate % change year-on-year
+110.26% -44.71%
90% offered a hourly rate of more than £29.55 £19.17 £15.00
10% offered a hourly rate of more than £80.50 £44.40 £137.50
UK excluding London median hourly rate £40.00 £37.50 £34.50
% change year-on-year
+6.66% +8.69%

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 29 September 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 29 September 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 +3 4 £650 +4.00%
Reactive Extensions
England

Reactive Extensions
Top 30 Related IT Skills in London

For the 6 months to 29 September 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 27 (93.10%) C#
2 24 (82.76%) .NET
3 21 (72.41%) WPF
4 18 (62.07%) MVVM
5 15 (51.72%) Agile Software Development
5 15 (51.72%) Front Office
6 14 (48.28%) Multithreading
7 13 (44.83%) Banking
8 10 (34.48%) TDD
8 10 (34.48%) Finance
9 9 (31.03%) Investment Banking
9 9 (31.03%) SQL
10 8 (27.59%) OO
10 8 (27.59%) OOD
10 8 (27.59%) BDD
11 7 (24.14%) Task Parallel Library
11 7 (24.14%) AngularJS
11 7 (24.14%) Electronic Trading
11 7 (24.14%) Foreign Exchange (FX)
11 7 (24.14%) ASP.NET
11 7 (24.14%) JavaScript
11 7 (24.14%) .NET Framework
11 7 (24.14%) Scrum
11 7 (24.14%) React
12 6 (20.69%) Equities
12 6 (20.69%) Microsoft
12 6 (20.69%) MVC
12 6 (20.69%) Unit Testing
12 6 (20.69%) ASP.NET MVC
12 6 (20.69%) ASP.NET Web API

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:

Application Platforms
1 2 (6.90%) Confluence
Applications
1 2 (6.90%) MS Excel
Cloud Services
1 4 (13.79%) Microsoft Azure
Database & Business Intelligence
1 5 (17.24%) MongoDB
1 5 (17.24%) SQL Server
2 3 (10.34%) Azure SQL Database
2 3 (10.34%) NoSQL
3 2 (6.90%) DB2
3 2 (6.90%) Relational Database
4 1 (3.45%) RDBMS
4 1 (3.45%) SQL Server 2008
Development Applications
1 6 (20.69%) SpecFlow
2 4 (13.79%) Git (software)
2 4 (13.79%) Subversion
3 3 (10.34%) JIRA
3 3 (10.34%) NUnit
3 3 (10.34%) TeamCity
3 3 (10.34%) Visual Studio
4 2 (6.90%) Babel
4 2 (6.90%) Bower
4 2 (6.90%) Grunt
4 2 (6.90%) gulp
4 2 (6.90%) Jasmine
4 2 (6.90%) Jenkins
4 2 (6.90%) JSUnit
4 2 (6.90%) Mocha
4 2 (6.90%) Moq
4 2 (6.90%) QUnit
4 2 (6.90%) Rhino Mocks
4 2 (6.90%) Sinon.JS
4 2 (6.90%) Toad
General
1 15 (51.72%) Front Office
2 13 (44.83%) Banking
3 10 (34.48%) Finance
4 9 (31.03%) Investment Banking
Job Titles
1 28 (96.55%) Developer
2 22 (75.86%) C# Developer
3 11 (37.93%) WPF Developer
4 10 (34.48%) C# WPF Developer
5 6 (20.69%) .NET Developer
5 6 (20.69%) C# GUI Developer
5 6 (20.69%) Front Office Developer
5 6 (20.69%) GUI Developer
5 6 (20.69%) Senior Developer
6 5 (17.24%) Full Stack Developer
6 5 (17.24%) Senior C# Developer
7 4 (13.79%) C# .NET Developer
7 4 (13.79%) Senior WPF Developer
8 3 (10.34%) C# Developer - Investment Banking
8 3 (10.34%) UI Developer
9 2 (6.90%) SQL Developer
10 1 (3.45%) Front End Developer (Client-Side Developer)
10 1 (3.45%) Front End Web Developer (Client-Side Developer)
10 1 (3.45%) HTML Developer
10 1 (3.45%) Quantitative Developer
Libraries, Frameworks & Software Standards
1 24 (82.76%) .NET
2 21 (72.41%) WPF
3 7 (24.14%) .NET Framework
3 7 (24.14%) AngularJS
3 7 (24.14%) ASP.NET
3 7 (24.14%) React
3 7 (24.14%) Task Parallel Library
4 6 (20.69%) ASP.NET MVC
4 6 (20.69%) ASP.NET Web API
5 5 (17.24%) KnockoutJS
6 4 (13.79%) HTML
6 4 (13.79%) HTML5
6 4 (13.79%) JMS
6 4 (13.79%) Web Services
7 3 (10.34%) CSS
7 3 (10.34%) Entity Framework
7 3 (10.34%) jQuery
7 3 (10.34%) Node.js
7 3 (10.34%) SignalR
7 3 (10.34%) WCF
Miscellaneous
1 7 (24.14%) Foreign Exchange (FX)
2 6 (20.69%) Equities
3 4 (13.79%) Algorithms
3 4 (13.79%) Data Structures
4 3 (10.34%) Analytical Skills
4 3 (10.34%) Computer Science
4 3 (10.34%) Fixed Income
5 2 (6.90%) Inversion of Control
5 2 (6.90%) N-Tier
5 2 (6.90%) User Experience
5 2 (6.90%) Visualisation
6 1 (3.45%) Derivative
6 1 (3.45%) Economics
Operating Systems
1 1 (3.45%) Android
Processes & Methodologies
1 18 (62.07%) MVVM
2 15 (51.72%) Agile Software Development
3 14 (48.28%) Multithreading
4 10 (34.48%) TDD
5 8 (27.59%) BDD
5 8 (27.59%) OO
5 8 (27.59%) OOD
6 7 (24.14%) Electronic Trading
6 7 (24.14%) Scrum
7 6 (20.69%) MVC
7 6 (20.69%) Unit Testing
8 4 (13.79%) OOP
8 4 (13.79%) Software Architecture
9 3 (10.34%) Algorithmic Trading
9 3 (10.34%) Complex Event Processing
9 3 (10.34%) Low Latency
10 2 (6.90%) Continuous Improvement
10 2 (6.90%) Continuous Integration
10 2 (6.90%) SDLC
10 2 (6.90%) SOLID
Programming Languages
1 27 (93.10%) C#
2 9 (31.03%) SQL
3 7 (24.14%) JavaScript
4 5 (17.24%) XAML
5 3 (10.34%) Java
6 2 (6.90%) ES6
7 1 (3.45%) R
7 1 (3.45%) VBA
Qualifications
1 4 (13.79%) Degree
Quality Assurance & Compliance
1 1 (3.45%) QA
Vendors
1 6 (20.69%) Microsoft
2 2 (6.90%) DevExpress
2 2 (6.90%) Infragistics
2 2 (6.90%) Oracle
2 2 (6.90%) Syncfusion
3 1 (3.45%) Bloomberg
3 1 (3.45%) DataSynapse