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 9 December 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
9 Dec 2016
Same period 2015 Same period 2014
Reactive Extensions (Rx)
Rank 601 601 610
Rank change year-on-year
0 +9
Contract jobs citing Reactive Extensions 20 44 27
As % of all contract IT jobs located in the UK 0.040% 0.080% 0.048%
As % of the Libraries, Frameworks & Software Standards category 0.13% 0.28% 0.18%
Number of daily rates quoted 18 39 21
Median daily rate £550 £500 £625
Median daily rate % change year-on-year
+10.00% -20.00%
90% offered a daily rate of more than £500 £400 £425
10% offered a daily rate of more than £650 £550 £700
UK excluding London median daily rate - £363 £375
% change year-on-year
- -3.33%
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
15273 15835 15252
As % of all contract IT jobs located in the UK 30.81% 28.73% 27.04%
Number of daily rates quoted 10539 11026 10410
Median daily rate £425 £400 £400
Median daily rate % change year-on-year
+6.25% -
90% offered a daily rate of more than £305 £300 £275
10% offered a daily rate of more than £563 £550 £550
UK excluding London median daily rate £380 £375 £350
% change year-on-year
+1.33% +7.14%
Number of hourly rates quoted 144 255 172
Median hourly rate £40.00 £37.50 £35.00
Median hourly rate % change year-on-year
+6.66% +7.14%
90% offered a hourly rate of more than £16.08 £17.43 £17.50
10% offered a hourly rate of more than £50.00 £47.50 £54.00
UK excluding London median hourly rate £40.00 £37.50 £35.00
% change year-on-year
+6.66% +7.14%

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 9 December 2016.

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 9 December 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
London -10 20 £550 +10.00% 1
England -16 20 £550 +10.00% 6
City of London -9 4 £600 +41.17%

Reactive Extensions
Top 30 Related IT Skills

For the 6 months to 9 December 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 with a requirement for Reactive Extensions.

1 36 (92.31%) C#
2 31 (79.49%) MVVM
3 28 (71.79%) .NET
4 25 (64.10%) WPF
5 20 (51.28%) Agile Software Development
5 20 (51.28%) JavaScript
6 17 (43.59%) Finance
7 16 (41.03%) Front Office
7 16 (41.03%) SQL
7 16 (41.03%) Multithreading
8 15 (38.46%) Banking
8 15 (38.46%) AngularJS
8 15 (38.46%) React
9 14 (35.90%) Investment Banking
9 14 (35.90%) TDD
10 13 (33.33%) Microsoft
10 13 (33.33%) Foreign Exchange (FX)
11 12 (30.77%) ASP.NET Web API
11 12 (30.77%) NancyFx
12 10 (25.64%) HTML
12 10 (25.64%) Java
12 10 (25.64%) Web Services
12 10 (25.64%) Scrum
12 10 (25.64%) NUnit
12 10 (25.64%) HTML5
12 10 (25.64%) NoSQL
13 9 (23.08%) BDD
13 9 (23.08%) RESTful
13 9 (23.08%) ASP.NET
13 9 (23.08%) OO

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 5 (12.82%) Apache Spark
1 5 (12.82%) SharePoint
2 3 (7.69%) BizTalk Server
3 2 (5.13%) Confluence
Applications
1 3 (7.69%) MS Excel
Business Applications
1 5 (12.82%) Dynamics CRM
Cloud Services
1 5 (12.82%) Microsoft Azure
Communications & Networking
1 4 (10.26%) AMQP
Database & Business Intelligence
1 10 (25.64%) NoSQL
2 7 (17.95%) MongoDB
2 7 (17.95%) Relational Database
2 7 (17.95%) SQL Server
3 5 (12.82%) Azure SQL Database
3 5 (12.82%) Big Data
3 5 (12.82%) SQL Server Reporting Services
4 4 (10.26%) Redis
5 2 (5.13%) DB2
6 1 (2.56%) RDBMS
Development Applications
1 10 (25.64%) NUnit
2 7 (17.95%) SpecFlow
3 6 (15.38%) Git (software)
3 6 (15.38%) Subversion
4 5 (12.82%) Gradle
4 5 (12.82%) Maven
4 5 (12.82%) Mockito
5 3 (7.69%) JIRA
5 3 (7.69%) Team Foundation Server
5 3 (7.69%) TeamCity
5 3 (7.69%) Visual Studio
6 2 (5.13%) Bower
6 2 (5.13%) Grunt
6 2 (5.13%) gulp
6 2 (5.13%) Jenkins
6 2 (5.13%) JSUnit
6 2 (5.13%) Moq
6 2 (5.13%) Rhino Mocks
6 2 (5.13%) Sinon.JS
6 2 (5.13%) Toad
General
1 17 (43.59%) Finance
2 16 (41.03%) Front Office
3 15 (38.46%) Banking
4 14 (35.90%) Investment Banking
Job Titles
1 38 (97.44%) Developer
2 23 (58.97%) C# Developer
3 9 (23.08%) .NET Developer
4 7 (17.95%) C# .NET Developer
4 7 (17.95%) C# WPF Developer
4 7 (17.95%) WPF Developer
5 6 (15.38%) JavaScript Developer
5 6 (15.38%) UI Developer
6 5 (12.82%) CRM Developer
6 5 (12.82%) Java Developer
6 5 (12.82%) Senior Developer
7 4 (10.26%) Agile C# Developer
7 4 (10.26%) Agile Developer
7 4 (10.26%) Agile Java Developer
7 4 (10.26%) Azure Developer
7 4 (10.26%) GUI Developer
8 3 (7.69%) C# GUI Developer
8 3 (7.69%) Front Office Developer
8 3 (7.69%) Full Stack Developer
8 3 (7.69%) Senior UI Developer
Libraries, Frameworks & Software Standards
1 28 (71.79%) .NET
2 25 (64.10%) WPF
3 15 (38.46%) AngularJS
3 15 (38.46%) React
4 12 (30.77%) ASP.NET Web API
4 12 (30.77%) NancyFx
5 10 (25.64%) HTML
5 10 (25.64%) HTML5
5 10 (25.64%) Web Services
6 9 (23.08%) ASP.NET
6 9 (23.08%) RESTful
7 7 (17.95%) .NET Framework
7 7 (17.95%) XML
8 6 (15.38%) Managed Extensibility Framework
8 6 (15.38%) SOAP
8 6 (15.38%) WCF
9 5 (12.82%) ASP.NET MVC
9 5 (12.82%) SignalR
9 5 (12.82%) Spring
9 5 (12.82%) Spring Boot
Miscellaneous
1 13 (33.33%) Foreign Exchange (FX)
2 6 (15.38%) Analytical Skills
3 5 (12.82%) Fintech
4 4 (10.26%) Algorithms
4 4 (10.26%) Data Structures
4 4 (10.26%) Fixed Income
5 3 (7.69%) Computer Science
5 3 (7.69%) Economics
6 2 (5.13%) Equities
6 2 (5.13%) Inversion of Control
6 2 (5.13%) N-Tier
6 2 (5.13%) Visualisation
7 1 (2.56%) User Experience
7 1 (2.56%) Virtual Team
Operating Systems
1 6 (15.38%) Windows
2 2 (5.13%) Android
Processes & Methodologies
1 31 (79.49%) MVVM
2 20 (51.28%) Agile Software Development
3 16 (41.03%) Multithreading
4 14 (35.90%) TDD
5 10 (25.64%) Scrum
6 9 (23.08%) BDD
6 9 (23.08%) OO
6 9 (23.08%) OOD
7 8 (20.51%) MVC
8 7 (17.95%) Continuous Improvement
8 7 (17.95%) Electronic Trading
8 7 (17.95%) Pair Programming
8 7 (17.95%) SDLC
8 7 (17.95%) Technical Analysis
9 6 (15.38%) Workflow
10 5 (12.82%) Algorithmic Trading
10 5 (12.82%) CRM
10 5 (12.82%) Unit Testing
11 4 (10.26%) Continuous Integration
11 4 (10.26%) OOP
Programming Languages
1 36 (92.31%) C#
2 20 (51.28%) JavaScript
3 16 (41.03%) SQL
4 10 (25.64%) Java
5 7 (17.95%) XAML
6 2 (5.13%) ES6
Qualifications
1 4 (10.26%) Degree
2 3 (7.69%) MCITP
2 3 (7.69%) Microsoft Certification
Quality Assurance & Compliance
1 1 (2.56%) QA
Vendors
1 13 (33.33%) Microsoft
2 2 (5.13%) Infragistics
2 2 (5.13%) Oracle
2 2 (5.13%) Syncfusion
3 1 (2.56%) Bloomberg