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 August 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 Aug 2016
Same period 2015 Same period 2014
Reactive Extensions (Rx)
Rank 425 400 424
Rank change year-on-year
-25 +24
Contract jobs citing Reactive Extensions 14 25 23
As % of all contract IT jobs located in London 0.061% 0.11% 0.095%
As % of the Libraries, Frameworks & Software Standards category 0.18% 0.34% 0.31%
Number of daily rates quoted 12 22 21
Median daily rate £650 £613 £600
Median daily rate % change year-on-year
+6.12% +2.08%
90% offered a daily rate of more than £503 £353 £550
10% offered a daily rate of more than £674 £673 £650
UK excluding London median daily rate £488 £399 £400
% change year-on-year
+22.18% -0.25%
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
7715 7360 7468
As % of all contract IT jobs located in London 33.45% 31.65% 30.80%
Number of daily rates quoted 5737 5402 5221
Median daily rate £450 £438 £415
Median daily rate % change year-on-year
+2.85% +5.42%
90% offered a daily rate of more than £325 £315 £300
10% offered a daily rate of more than £595 £600 £575
UK excluding London median daily rate £375 £368 £350
% change year-on-year
+2.04% +5.00%
Number of hourly rates quoted 38 49 49
Median hourly rate £46.00 £36.50 £40.00
Median hourly rate % change year-on-year
+26.02% -8.75%
90% offered a hourly rate of more than £21.20 £19.52 £17.50
10% offered a hourly rate of more than £65.20 £52.17 £53.00
UK excluding London median hourly rate £40.00 £38.89 £35.00
% change year-on-year
+2.86% +11.10%

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 August 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 August 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 +19 5 £650 +4.00%
Reactive Extensions
England

Reactive Extensions
Top 30 Related IT Skills in London

For the 6 months to 29 August 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 37 (92.50%) C#
2 32 (80.00%) .NET
3 30 (75.00%) WPF
4 27 (67.50%) MVVM
5 25 (62.50%) Agile Software Development
6 22 (55.00%) Front Office
7 18 (45.00%) Multithreading
8 17 (42.50%) Banking
9 14 (35.00%) TDD
10 13 (32.50%) Investment Banking
11 12 (30.00%) Foreign Exchange (FX)
11 12 (30.00%) Electronic Trading
12 11 (27.50%) Finance
13 10 (25.00%) Equities
13 10 (25.00%) OOD
13 10 (25.00%) OO
13 10 (25.00%) .NET Framework
13 10 (25.00%) Task Parallel Library
14 9 (22.50%) BDD
14 9 (22.50%) SQL
14 9 (22.50%) Scrum
15 8 (20.00%) AngularJS
15 8 (20.00%) React
16 7 (17.50%) ASP.NET Web API
16 7 (17.50%) SpecFlow
16 7 (17.50%) SQL Server
16 7 (17.50%) ASP.NET
16 7 (17.50%) JavaScript
17 6 (15.00%) Microsoft
17 6 (15.00%) 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:

Application Platforms
1 2 (5.00%) Confluence
Applications
1 2 (5.00%) MS Excel
Business Applications
1 1 (2.50%) ION MarketView
1 1 (2.50%) RMDS
Cloud Services
1 5 (12.50%) Microsoft Azure
Communications & Networking
1 1 (2.50%) AMQP
Database & Business Intelligence
1 7 (17.50%) SQL Server
2 5 (12.50%) MongoDB
3 4 (10.00%) Azure SQL Database
3 4 (10.00%) NoSQL
4 2 (5.00%) DB2
4 2 (5.00%) SQL Server 2008
5 1 (2.50%) Relational Database
Development Applications
1 7 (17.50%) SpecFlow
2 5 (12.50%) Git (software)
2 5 (12.50%) Subversion
3 3 (7.50%) JIRA
3 3 (7.50%) NUnit
3 3 (7.50%) TeamCity
3 3 (7.50%) Visual Studio
4 2 (5.00%) Bower
4 2 (5.00%) Gerrit
4 2 (5.00%) Grunt
4 2 (5.00%) gulp
4 2 (5.00%) Jasmine
4 2 (5.00%) Jenkins
4 2 (5.00%) JSUnit
4 2 (5.00%) Mocha
4 2 (5.00%) Moq
4 2 (5.00%) QUnit
4 2 (5.00%) Rhino Mocks
4 2 (5.00%) Sinon.JS
4 2 (5.00%) Toad
General
1 22 (55.00%) Front Office
2 17 (42.50%) Banking
3 13 (32.50%) Investment Banking
4 11 (27.50%) Finance
Job Titles
1 39 (97.50%) Developer
2 31 (77.50%) C# Developer
3 18 (45.00%) WPF Developer
4 17 (42.50%) C# WPF Developer
5 11 (27.50%) Front Office Developer
5 11 (27.50%) Senior Developer
6 10 (25.00%) C# GUI Developer
6 10 (25.00%) GUI Developer
6 10 (25.00%) Senior C# Developer
7 8 (20.00%) Senior WPF Developer
8 7 (17.50%) C# Developer - Investment Banking
9 6 (15.00%) .NET Developer
9 6 (15.00%) Full Stack Developer
10 4 (10.00%) C# .NET Developer
11 3 (7.50%) C# Developer - Electronic Trading
11 3 (7.50%) Electronic Trading Developer
11 3 (7.50%) UI Developer
12 2 (5.00%) Android Developer
12 2 (5.00%) SQL Developer
13 1 (2.50%) Technical Leader
Libraries, Frameworks & Software Standards
1 32 (80.00%) .NET
2 30 (75.00%) WPF
3 10 (25.00%) .NET Framework
3 10 (25.00%) Task Parallel Library
4 8 (20.00%) AngularJS
4 8 (20.00%) React
5 7 (17.50%) ASP.NET
5 7 (17.50%) ASP.NET Web API
6 5 (12.50%) ASP.NET MVC
6 5 (12.50%) KnockoutJS
7 4 (10.00%) Entity Framework
7 4 (10.00%) HTML
7 4 (10.00%) HTML5
7 4 (10.00%) JMS
7 4 (10.00%) SignalR
7 4 (10.00%) WCF
7 4 (10.00%) Web Services
8 3 (7.50%) Node.js
9 2 (5.00%) CSS3
9 2 (5.00%) Ninject
Miscellaneous
1 12 (30.00%) Foreign Exchange (FX)
2 10 (25.00%) Equities
3 5 (12.50%) Fixed Income
4 4 (10.00%) Algorithms
4 4 (10.00%) Data Structures
5 3 (7.50%) Analytical Skills
5 3 (7.50%) Computer Science
5 3 (7.50%) User Experience
6 2 (5.00%) Inversion of Control
6 2 (5.00%) N-Tier
6 2 (5.00%) Visualisation
7 1 (2.50%) Animation
7 1 (2.50%) Derivative
7 1 (2.50%) Economics
Operating Systems
1 2 (5.00%) Android
Processes & Methodologies
1 27 (67.50%) MVVM
2 25 (62.50%) Agile Software Development
3 18 (45.00%) Multithreading
4 14 (35.00%) TDD
5 12 (30.00%) Electronic Trading
6 10 (25.00%) OO
6 10 (25.00%) OOD
7 9 (22.50%) BDD
7 9 (22.50%) Scrum
8 6 (15.00%) MVC
8 6 (15.00%) Unit Testing
9 4 (10.00%) OOP
9 4 (10.00%) Software Architecture
10 3 (7.50%) Algorithmic Trading
10 3 (7.50%) Complex Event Processing
10 3 (7.50%) Low Latency
11 2 (5.00%) Android Development
11 2 (5.00%) Continuous Improvement
11 2 (5.00%) Microservices
11 2 (5.00%) SDLC
Programming Languages
1 37 (92.50%) C#
2 9 (22.50%) SQL
3 7 (17.50%) JavaScript
4 6 (15.00%) XAML
5 2 (5.00%) ES6
5 2 (5.00%) Java
6 1 (2.50%) R
6 1 (2.50%) VBA
Qualifications
1 4 (10.00%) Degree
Quality Assurance & Compliance
1 1 (2.50%) QA
Vendors
1 6 (15.00%) DevExpress
1 6 (15.00%) Microsoft
2 3 (7.50%) Oracle
3 2 (5.00%) DataSynapse
3 2 (5.00%) Infragistics
3 2 (5.00%) Syncfusion
4 1 (2.50%) ION Trading
4 1 (2.50%) Reuters
4 1 (2.50%) TIBCO