The table below looks at the statistics for Reactive Extensions skills in IT contracts advertised across the UK. Included is a guide to the contractor rates offered in IT contracts that have cited Reactive Extensions over the 3 months to 20 January 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
20 Jan 2017
Same period 2016 Same period 2015
Reactive Extensions (Rx)
UK
Rank 563 588 593
Rank change year-on-year
+25 +5
Contract jobs citing Reactive Extensions 34 34 11
As % of all contract IT jobs located in the UK 0.076% 0.067% 0.022%
As % of the Libraries, Frameworks & Software Standards category 0.25% 0.23% 0.079%
Number of daily rates quoted 32 31 9
Median daily rate £575 £500 £625
Median daily rate % change year-on-year
+15.00% -20.00%
90% offered a daily rate of more than £500 £425 £450
10% offered a daily rate of more than £650 £648 £655
UK excluding London median daily rate - - -
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 across the UK.

Libraries, Frameworks & Software Standards Category
UK
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
13765 14661 13927
As % of all contract IT jobs located in the UK 30.75% 28.86% 27.37%
Number of daily rates quoted 9459 10107 9416
Median daily rate £425 £400 £395
Median daily rate % change year-on-year
+6.25% +1.26%
90% offered a daily rate of more than £310 £300 £275
10% offered a daily rate of more than £575 £550 £550
UK excluding London median daily rate £375 £370 £350
% change year-on-year
+1.35% +5.71%
Number of hourly rates quoted 161 261 184
Median hourly rate £38.00 £38.00 £34.00
Median hourly rate % change year-on-year
- +11.76%
90% offered a hourly rate of more than £16.50 £20.50 £20.93
10% offered a hourly rate of more than £52.00 £55.64 £50.00
UK excluding London median hourly rate £37.50 £37.50 £33.50
% change year-on-year
- +11.94%

Reactive Extensions
Jobs Demand Trend

The demand trend of contract jobs 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 the UK

Reactive Extensions
Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing Reactive Extensions within the UK.

Reactive Extensions Daily Rate Trend in the UK

Reactive Extensions
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing Reactive Extensions within the UK over the 3 months to 20 January 2017.

Reactive Extensions Daily Rate Histogram in the UK

Reactive Extensions
Top 3 Contract Locations

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 UK over the 3 months to 20 January 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
England +30 34 £575 +15.00% 4
London +11 34 £575 +15.00% 2
City of London +1 6 £600 +14.83%

Reactive Extensions
Top 30 Related IT Skills

For the 6 months to 20 January 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 with a requirement for Reactive Extensions.

1 36 (94.74%) C#
2 33 (86.84%) .NET
3 32 (84.21%) WPF
3 32 (84.21%) MVVM
4 28 (73.68%) JavaScript
5 26 (68.42%) SQL
6 25 (65.79%) AngularJS
6 25 (65.79%) React
7 23 (60.53%) NancyFx
8 22 (57.89%) ASP.NET Web API
9 19 (50.00%) NoSQL
10 18 (47.37%) Agile Software Development
10 18 (47.37%) TDD
11 16 (42.11%) Finance
11 16 (42.11%) ASP.NET
12 15 (39.47%) Foreign Exchange (FX)
12 15 (39.47%) SQL Server
12 15 (39.47%) Azure SQL Database
12 15 (39.47%) BDD
12 15 (39.47%) SignalR
12 15 (39.47%) Microsoft Azure
13 14 (36.84%) Git (software)
13 14 (36.84%) SpecFlow
13 14 (36.84%) Fintech
13 14 (36.84%) Subversion
14 13 (34.21%) Java
14 13 (34.21%) MSMQ
14 13 (34.21%) Angular 2
14 13 (34.21%) Microservices
14 13 (34.21%) WebSockets

Reactive Extensions
Top Related IT Skills 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 7 (18.42%) Apache Spark
2 1 (2.63%) SharePoint
2 1 (2.63%) SharePoint 2013
Applications
1 2 (5.26%) MS Excel
Cloud Services
1 15 (39.47%) Microsoft Azure
Communications & Networking
1 13 (34.21%) AMQP
Database & Business Intelligence
1 19 (50.00%) NoSQL
2 15 (39.47%) Azure SQL Database
2 15 (39.47%) SQL Server
3 8 (21.05%) MongoDB
3 8 (21.05%) Relational Database
4 7 (18.42%) Big Data
5 6 (15.79%) Redis
6 1 (2.63%) Oracle Database
6 1 (2.63%) Oracle Database 10g
6 1 (2.63%) RDBMS
Development Applications
1 14 (36.84%) Git (software)
1 14 (36.84%) SpecFlow
1 14 (36.84%) Subversion
2 10 (26.32%) NUnit
3 7 (18.42%) Gradle
3 7 (18.42%) Maven
3 7 (18.42%) Mockito
4 1 (2.63%) Rhino Mocks
General
1 16 (42.11%) Finance
2 12 (31.58%) Banking
2 12 (31.58%) Front Office
3 11 (28.95%) Investment Banking
Job Titles
1 38 (100.00%) Developer
2 29 (76.32%) C# Developer
3 14 (36.84%) WPF Developer
4 13 (34.21%) C# WPF Developer
5 12 (31.58%) Angular Developer
6 10 (26.32%) .NET Developer
7 9 (23.68%) C# .NET Developer
7 9 (23.68%) JavaScript Developer
8 8 (21.05%) ASP.NET Developer
8 8 (21.05%) Azure Developer
8 8 (21.05%) C# ASP.NET Developer
9 7 (18.42%) Java Developer
10 6 (15.79%) Agile C# Developer
10 6 (15.79%) Agile Developer
10 6 (15.79%) Agile Java Developer
11 5 (13.16%) Senior Developer
12 4 (10.53%) GUI Developer
12 4 (10.53%) UI Developer
13 3 (7.89%) Front Office Developer
13 3 (7.89%) Senior UI Developer
Libraries, Frameworks & Software Standards
1 33 (86.84%) .NET
2 32 (84.21%) WPF
3 25 (65.79%) AngularJS
3 25 (65.79%) React
4 23 (60.53%) NancyFx
5 22 (57.89%) ASP.NET Web API
6 16 (42.11%) ASP.NET
7 15 (39.47%) SignalR
8 13 (34.21%) Angular 2
8 13 (34.21%) MSMQ
8 13 (34.21%) WebSockets
9 11 (28.95%) RESTful
10 9 (23.68%) HTML
10 9 (23.68%) HTML5
11 7 (18.42%) .NET Framework
11 7 (18.42%) Spring
11 7 (18.42%) Spring Boot
12 3 (7.89%) ASP.NET MVC
12 3 (7.89%) Task Parallel Library
13 2 (5.26%) KnockoutJS
Miscellaneous
1 15 (39.47%) Foreign Exchange (FX)
2 14 (36.84%) Fintech
3 4 (10.53%) Analytical Skills
3 4 (10.53%) Fixed Income
4 2 (5.26%) Economics
5 1 (2.63%) Algorithms
5 1 (2.63%) Computer Science
5 1 (2.63%) Credit Risk
5 1 (2.63%) Data Structures
5 1 (2.63%) Hedge funds
5 1 (2.63%) User Experience
5 1 (2.63%) Virtual Team
5 1 (2.63%) Visualisation
Operating Systems
1 1 (2.63%) Android
1 1 (2.63%) Unix
Processes & Methodologies
1 32 (84.21%) MVVM
2 18 (47.37%) Agile Software Development
2 18 (47.37%) TDD
3 15 (39.47%) BDD
4 13 (34.21%) Microservices
5 12 (31.58%) Multithreading
6 9 (23.68%) SDLC
7 8 (21.05%) Continuous Improvement
7 8 (21.05%) Domain-Driven Design
7 8 (21.05%) Pair Programming
7 8 (21.05%) Scrum
7 8 (21.05%) Technical Analysis
8 7 (18.42%) OO
8 7 (18.42%) OOD
9 6 (15.79%) Electronic Trading
10 3 (7.89%) Continuous Integration
10 3 (7.89%) CQRS
10 3 (7.89%) MVC
10 3 (7.89%) Software Engineering
11 2 (5.26%) Complex Event Processing
Programming Languages
1 36 (94.74%) C#
2 28 (73.68%) JavaScript
3 26 (68.42%) SQL
4 13 (34.21%) Java
5 3 (7.89%) XAML
Qualifications
1 1 (2.63%) Degree
Quality Assurance & Compliance
1 1 (2.63%) QA
Vendors
1 3 (7.89%) Microsoft
2 1 (2.63%) Bloomberg
2 1 (2.63%) Oracle