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 24 February 2017 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
24 Feb 2017
Same period 2016 Same period 2015
Reactive Extensions (Rx)
England / London
Rank 364 390 402
Rank change year-on-year
+26 +12
Contract jobs citing Reactive Extensions 33 30 14
As % of all contract IT jobs located in London 0.17% 0.14% 0.065%
As % of the Libraries, Frameworks & Software Standards category 0.49% 0.44% 0.22%
Number of daily rates quoted 30 29 9
Median daily rate £600 £625 £575
Median daily rate % change year-on-year
-4.00% +8.69%
90% offered a daily rate of more than £500 £490 £450
10% offered a daily rate of more than £650 £750 £670
UK excluding London median daily rate £450 £513 £344
% change year-on-year
-12.19% +49.09%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

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
6767 6774 6440
As % of all contract IT jobs located in London 34.93% 31.60% 30.13%
Number of daily rates quoted 5102 5010 4749
Median daily rate £475 £450 £425
Median daily rate % change year-on-year
+5.55% +5.88%
90% offered a daily rate of more than £345 £325 £313
10% offered a daily rate of more than £600 £600 £575
UK excluding London median daily rate £375 £363 £350
% change year-on-year
+3.44% +3.57%
Number of hourly rates quoted 34 40 22
Median hourly rate £47.50 £50.00 £29.00
Median hourly rate % change year-on-year
-5.00% +72.41%
90% offered a hourly rate of more than £26.75 £26.00 £19.50
10% offered a hourly rate of more than £72.00 £55.00 £55.00
UK excluding London median hourly rate £40.00 £38.75 £35.00
% change year-on-year
+3.22% +10.71%

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 24 February 2017.

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 24 February 2017. 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 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 -8 3 £600 -11.11%
Reactive Extensions
England

Reactive Extensions
Top 30 Related IT Skills in London

For the 6 months to 24 February 2017, 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 41 (93.18%) C#
2 39 (88.64%) .NET
3 35 (79.55%) JavaScript
3 35 (79.55%) WPF
3 35 (79.55%) MVVM
4 32 (72.73%) AngularJS
4 32 (72.73%) React
5 30 (68.18%) SQL
6 27 (61.36%) NancyFx
7 26 (59.09%) ASP.NET Web API
8 23 (52.27%) NoSQL
9 21 (47.73%) Finance
9 21 (47.73%) Agile Software Development
10 18 (40.91%) TDD
10 18 (40.91%) Java
10 18 (40.91%) ASP.NET
11 17 (38.64%) SQL Server
11 17 (38.64%) Foreign Exchange (FX)
11 17 (38.64%) Banking
11 17 (38.64%) Azure SQL Database
11 17 (38.64%) Microsoft Azure
11 17 (38.64%) SignalR
12 16 (36.36%) SpecFlow
12 16 (36.36%) Git (software)
12 16 (36.36%) BDD
12 16 (36.36%) Subversion
12 16 (36.36%) Front Office
12 16 (36.36%) Fintech
13 15 (34.09%) Angular 2
13 15 (34.09%) MSMQ

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 9 (20.45%) Apache Spark
2 1 (2.27%) SharePoint
2 1 (2.27%) SharePoint 2013
Applications
1 2 (4.55%) MS Excel
Cloud Services
1 17 (38.64%) Microsoft Azure
Communications & Networking
1 15 (34.09%) AMQP
2 1 (2.27%) TCP/IP
Database & Business Intelligence
1 23 (52.27%) NoSQL
2 17 (38.64%) Azure SQL Database
2 17 (38.64%) SQL Server
3 10 (22.73%) Relational Database
4 9 (20.45%) Big Data
4 9 (20.45%) MongoDB
5 8 (18.18%) Redis
6 1 (2.27%) Oracle Database
6 1 (2.27%) Oracle Database 10g
6 1 (2.27%) RDBMS
Development Applications
1 16 (36.36%) Git (software)
1 16 (36.36%) SpecFlow
1 16 (36.36%) Subversion
2 12 (27.27%) NUnit
3 10 (22.73%) Maven
4 9 (20.45%) Gradle
4 9 (20.45%) Mockito
5 1 (2.27%) Rhino Mocks
General
1 21 (47.73%) Finance
2 17 (38.64%) Banking
3 16 (36.36%) Front Office
4 12 (27.27%) Investment Banking
5 3 (6.82%) Marketing
6 1 (2.27%) Financial Institution
Job Titles
1 43 (97.73%) Developer
2 33 (75.00%) C# Developer
3 16 (36.36%) Angular Developer
3 16 (36.36%) WPF Developer
4 15 (34.09%) C# WPF Developer
5 12 (27.27%) .NET Developer
6 11 (25.00%) C# .NET Developer
6 11 (25.00%) JavaScript Developer
7 10 (22.73%) ASP.NET Developer
7 10 (22.73%) C# ASP.NET Developer
8 9 (20.45%) Java Developer
9 8 (18.18%) Agile C# Developer
9 8 (18.18%) Agile Developer
9 8 (18.18%) Agile Java Developer
9 8 (18.18%) Azure Developer
9 8 (18.18%) Senior Developer
10 4 (9.09%) GUI Developer
11 3 (6.82%) C# GUI Developer
11 3 (6.82%) Full Stack Developer
11 3 (6.82%) UI Developer
Libraries, Frameworks & Software Standards
1 39 (88.64%) .NET
2 35 (79.55%) WPF
3 32 (72.73%) AngularJS
3 32 (72.73%) React
4 27 (61.36%) NancyFx
5 26 (59.09%) ASP.NET Web API
6 18 (40.91%) ASP.NET
7 17 (38.64%) SignalR
8 15 (34.09%) Angular 2
8 15 (34.09%) MSMQ
8 15 (34.09%) WebSockets
9 14 (31.82%) HTML
9 14 (31.82%) HTML5
10 13 (29.55%) RESTful
11 9 (20.45%) Spring
11 9 (20.45%) Spring Boot
12 7 (15.91%) .NET Framework
13 4 (9.09%) CSS
14 3 (6.82%) ASP.NET MVC
14 3 (6.82%) CSS3
Miscellaneous
1 17 (38.64%) Foreign Exchange (FX)
2 16 (36.36%) Fintech
3 4 (9.09%) User Experience
3 4 (9.09%) Virtual Team
4 3 (6.82%) Analytical Skills
4 3 (6.82%) Computer Science
4 3 (6.82%) Fixed Income
5 1 (2.27%) Credit Risk
5 1 (2.27%) Derivative
5 1 (2.27%) Equity Derivative
5 1 (2.27%) Hedge funds
Operating Systems
1 1 (2.27%) Unix
Processes & Methodologies
1 35 (79.55%) MVVM
2 21 (47.73%) Agile Software Development
3 18 (40.91%) TDD
4 16 (36.36%) BDD
5 15 (34.09%) Microservices
6 14 (31.82%) Multithreading
7 11 (25.00%) SDLC
8 10 (22.73%) Continuous Improvement
8 10 (22.73%) Domain-Driven Design
8 10 (22.73%) Pair Programming
8 10 (22.73%) Technical Analysis
9 8 (18.18%) Scrum
10 7 (15.91%) OO
11 6 (13.64%) Electronic Trading
11 6 (13.64%) OOD
12 3 (6.82%) Continuous Integration
12 3 (6.82%) MVC
12 3 (6.82%) Open Source
12 3 (6.82%) Software Engineering
12 3 (6.82%) Web Development
Programming Languages
1 41 (93.18%) C#
2 35 (79.55%) JavaScript
3 30 (68.18%) SQL
4 18 (40.91%) Java
5 3 (6.82%) TypeScript
6 2 (4.55%) XAML
Quality Assurance & Compliance
1 1 (2.27%) QA
Vendors
1 3 (6.82%) Microsoft
2 1 (2.27%) Bloomberg
2 1 (2.27%) Oracle