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 28 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
28 Sep 2016
Same period 2015 Same period 2014
Reactive Extensions (Rx)
Rank 634 625 590
Rank change year-on-year
-9 -35
Contract jobs citing Reactive Extensions 14 35 45
As % of all contract IT jobs located in the UK 0.026% 0.060% 0.079%
As % of the Libraries, Frameworks & Software Standards category 0.085% 0.21% 0.29%
Number of daily rates quoted 13 32 32
Median daily rate £600 £475 £525
Median daily rate % change year-on-year
+26.31% -9.52%
90% offered a daily rate of more than £425 £353 £378
10% offered a daily rate of more than £660 £650 £673
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 - - -

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
16430 16404 15521
As % of all contract IT jobs located in the UK 30.75% 28.23% 27.12%
Number of daily rates quoted 11396 11302 10100
Median daily rate £415 £400 £375
Median daily rate % change year-on-year
+3.75% +6.66%
90% offered a daily rate of more than £300 £288 £275
10% offered a daily rate of more than £550 £550 £530
UK excluding London median daily rate £375 £375 £350
% change year-on-year
- +7.14%
Number of hourly rates quoted 188 302 174
Median hourly rate £41.00 £37.45 £35.00
Median hourly rate % change year-on-year
+9.47% +7.00%
90% offered a hourly rate of more than £19.75 £17.20 £19.00
10% offered a hourly rate of more than £52.00 £45.00 £71.00
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 28 September 2016.

Reactive Extensions Daily Rate Histogram in the UK

Reactive Extensions
Top 8 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 28 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
England -1 14 £600 +26.31% 6
London -25 11 £650 +30.00% 4
City of London +12 4 £650 +4.00%
Suffolk +2 2 £425 +8.90%
East of England +1 2 £425 +8.90%
South East +12 1 £500 +25.62% 2
Weybridge 0 1 £500 +25.00%
Surrey 0 1 £500 +25.62% 2

Reactive Extensions
Top 30 Related IT Skills

For the 6 months to 28 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 with a requirement for Reactive Extensions.

1 34 (89.47%) C#
2 25 (65.79%) .NET
2 25 (65.79%) MVVM
3 21 (55.26%) WPF
4 16 (42.11%) Agile Software Development
5 15 (39.47%) Front Office
6 14 (36.84%) Multithreading
7 13 (34.21%) Banking
7 13 (34.21%) Microsoft
8 11 (28.95%) JavaScript
8 11 (28.95%) Web Services
8 11 (28.95%) TDD
8 11 (28.95%) MVC
9 10 (26.32%) WCF
9 10 (26.32%) Finance
10 9 (23.68%) Investment Banking
10 9 (23.68%) SQL
11 8 (21.05%) XML
11 8 (21.05%) ASP.NET
11 8 (21.05%) OO
11 8 (21.05%) OOD
11 8 (21.05%) BDD
12 7 (18.42%) Managed Extensibility Framework
12 7 (18.42%) Task Parallel Library
12 7 (18.42%) AngularJS
12 7 (18.42%) .NET Framework
12 7 (18.42%) Electronic Trading
12 7 (18.42%) ASP.NET MVC
12 7 (18.42%) Workflow
12 7 (18.42%) SOAP

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 6 (15.79%) SharePoint
2 4 (10.53%) BizTalk Server
3 2 (5.26%) Confluence
Applications
1 2 (5.26%) MS Excel
Business Applications
1 6 (15.79%) Dynamics CRM
Cloud Services
1 4 (10.53%) Microsoft Azure
Database & Business Intelligence
1 6 (15.79%) SQL Server Reporting Services
2 5 (13.16%) MongoDB
2 5 (13.16%) SQL Server
3 3 (7.89%) Azure SQL Database
3 3 (7.89%) NoSQL
4 2 (5.26%) DB2
4 2 (5.26%) Relational Database
5 1 (2.63%) RDBMS
5 1 (2.63%) SQL Server 2008
Development Applications
1 6 (15.79%) SpecFlow
2 4 (10.53%) Git (software)
2 4 (10.53%) Subversion
3 3 (7.89%) JIRA
3 3 (7.89%) NUnit
3 3 (7.89%) Team Foundation Server
3 3 (7.89%) TeamCity
3 3 (7.89%) Visual Studio
4 2 (5.26%) Bower
4 2 (5.26%) Gerrit
4 2 (5.26%) Grunt
4 2 (5.26%) Jasmine
4 2 (5.26%) Jenkins
4 2 (5.26%) JSUnit
4 2 (5.26%) Mocha
4 2 (5.26%) Moq
4 2 (5.26%) QUnit
4 2 (5.26%) Rhino Mocks
4 2 (5.26%) Sinon.JS
4 2 (5.26%) Toad
General
1 15 (39.47%) Front Office
2 13 (34.21%) Banking
3 10 (26.32%) Finance
4 9 (23.68%) Investment Banking
Job Titles
1 37 (97.37%) Developer
2 23 (60.53%) C# Developer
3 11 (28.95%) WPF Developer
4 10 (26.32%) C# WPF Developer
5 8 (21.05%) Senior Developer
6 7 (18.42%) .NET Developer
7 6 (15.79%) C# GUI Developer
7 6 (15.79%) CRM Developer
7 6 (15.79%) Front Office Developer
7 6 (15.79%) GUI Developer
8 5 (13.16%) C# .NET Developer
8 5 (13.16%) Full Stack Developer
8 5 (13.16%) Senior C# Developer
9 4 (10.53%) Senior WPF Developer
10 3 (7.89%) Android Developer
10 3 (7.89%) C# Developer - Investment Banking
10 3 (7.89%) UI Developer
11 2 (5.26%) Dynamics CRM Developer
11 2 (5.26%) Senior Android Developer
11 2 (5.26%) SQL Developer
Libraries, Frameworks & Software Standards
1 25 (65.79%) .NET
2 21 (55.26%) WPF
3 11 (28.95%) Web Services
4 10 (26.32%) WCF
5 8 (21.05%) ASP.NET
5 8 (21.05%) XML
6 7 (18.42%) .NET Framework
6 7 (18.42%) AngularJS
6 7 (18.42%) ASP.NET MVC
6 7 (18.42%) Managed Extensibility Framework
6 7 (18.42%) React
6 7 (18.42%) SOAP
6 7 (18.42%) Task Parallel Library
7 6 (15.79%) ASP.NET Web API
8 5 (13.16%) KnockoutJS
9 4 (10.53%) HTML
9 4 (10.53%) HTML5
9 4 (10.53%) JMS
10 3 (7.89%) CSS
10 3 (7.89%) Entity Framework
Miscellaneous
1 7 (18.42%) Foreign Exchange (FX)
2 6 (15.79%) Equities
3 4 (10.53%) Algorithms
3 4 (10.53%) Data Structures
4 3 (7.89%) Analytical Skills
4 3 (7.89%) Computer Science
4 3 (7.89%) Fixed Income
5 2 (5.26%) Inversion of Control
5 2 (5.26%) N-Tier
5 2 (5.26%) User Experience
5 2 (5.26%) Visualisation
6 1 (2.63%) Derivative
6 1 (2.63%) Economics
Operating Systems
1 7 (18.42%) Windows
2 3 (7.89%) Android
Processes & Methodologies
1 25 (65.79%) MVVM
2 16 (42.11%) Agile Software Development
3 14 (36.84%) Multithreading
4 11 (28.95%) MVC
4 11 (28.95%) TDD
5 8 (21.05%) BDD
5 8 (21.05%) OO
5 8 (21.05%) OOD
6 7 (18.42%) Electronic Trading
6 7 (18.42%) Scrum
6 7 (18.42%) Workflow
7 6 (15.79%) CRM
7 6 (15.79%) Unit Testing
8 4 (10.53%) OOP
8 4 (10.53%) Software Architecture
8 4 (10.53%) Workflow Development
9 3 (7.89%) Algorithmic Trading
9 3 (7.89%) Android Development
9 3 (7.89%) Complex Event Processing
9 3 (7.89%) Low Latency
Programming Languages
1 34 (89.47%) C#
2 11 (28.95%) JavaScript
3 9 (23.68%) SQL
4 5 (13.16%) XAML
5 3 (7.89%) Java
6 2 (5.26%) ES6
7 1 (2.63%) R
7 1 (2.63%) VBA
Qualifications
1 4 (10.53%) Degree
2 3 (7.89%) MCITP
2 3 (7.89%) Microsoft Certification
Quality Assurance & Compliance
1 1 (2.63%) QA
Vendors
1 13 (34.21%) Microsoft
2 2 (5.26%) DevExpress
2 2 (5.26%) Infragistics
2 2 (5.26%) Oracle
2 2 (5.26%) Syncfusion
3 1 (2.63%) Bloomberg
3 1 (2.63%) DataSynapse