The following table provides summary statistics for permanent job vacancies with a requirement for Reactive Extensions skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Reactive Extensions over the 3 months to 27 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
27 Mar 2017
Same period 2016 Same period 2015
Reactive Extensions (Rx)
UK
Rank 836 894 935
Rank change year-on-year +58 +41  
Permanent jobs citing Reactive Extensions 28 55 16
As % of all permanent IT jobs advertised in the UK 0.033% 0.053% 0.015%
As % of the Libraries, Frameworks & Software Standards category 0.082% 0.14% 0.039%
Number of salaries quoted 22 55 14
Median salary £62,500 £77,500 £61,250
Median salary % change year-on-year -19.35% +26.53%  
90% offered a salary of more than £37,750 £38,500 £47,500
10% offered a salary of more than £88,250 £100,000 £66,750
UK excluding London median salary £42,500 £40,000 £47,500
% change year-on-year +6.25% -15.78%  

Reactive Extensions is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
UK
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 33955 39662 40709
As % of all permanent IT job vacancies advertised in the UK 40.14% 38.35% 37.69%
Number of salaries quoted 28984 34153 34569
Median salary £45,000 £45,000 £44,500
Median salary % change year-on-year - +1.12%  
90% offered a salary of more than £31,500 £30,500 £30,000
10% offered a salary of more than £70,000 £65,000 £67,500
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +6.25%  

Reactive Extensions
Job Vacancy Trend

The job posting trend of jobs advertised citing Reactive Extensions as a proportion of all permanent or contract IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for Reactive Extensions in the UK

Reactive Extensions
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Reactive Extensions.

Salary trend for Reactive Extensions in the UK

Reactive Extensions
Salary Histogram

The salary distribution of IT jobs citing Reactive Extensions over the 3 months to 27 March 2017.

Salary histogram for Reactive Extensions in the UK

Reactive Extensions
Top 15 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Reactive Extensions within the UK over the 3 months to 27 March 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
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +63 28 £62,500 -19.35% 6
London +44 15 £62,500 -21.87% 4
East of England - 7 £37,500 - 1
South East +73 6 £45,000 -10.00%
Hertfordshire - 4 - -
Watford - 4 - -
Bury St Edmunds - 3 £37,500 -
Leatherhead - 3 £45,000 -
Surrey - 3 £45,000 -
Suffolk - 3 £37,500 - 1
City of London +46 2 £90,000 -10.00%
West Sussex - 2 £45,000 -
Worthing - 2 £45,000 -
Hampshire - 1 £37,500 -
Southampton - 1 £37,500 -

Reactive Extensions
Top 30 Related IT Skills

For the 6 months to 27 March 2017, IT 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 job ads with a requirement for Reactive Extensions.

1 58 (96.67%) C#
2 53 (88.33%) .NET
3 50 (83.33%) SQL
4 42 (70.00%) TDD
5 40 (66.67%) AngularJS
6 39 (65.00%) Microsoft
7 37 (61.67%) HTML
7 37 (61.67%) HTML5
7 37 (61.67%) NoSQL
8 34 (56.67%) WCF
9 33 (55.00%) Agile Software Development
9 33 (55.00%) JavaScript
10 32 (53.33%) .NET Framework
11 31 (51.67%) Windows
12 30 (50.00%) DevOps
13 28 (46.67%) T-SQL
14 27 (45.00%) CSS
14 27 (45.00%) SQL Server
15 26 (43.33%) Domain-Driven Design
15 26 (43.33%) Event Store
15 26 (43.33%) Couchbase
15 26 (43.33%) Redis
16 25 (41.67%) Web Services
17 24 (40.00%) SOA
17 24 (40.00%) Microsoft Azure
17 24 (40.00%) TeamCity
17 24 (40.00%) Azure SQL Database
17 24 (40.00%) Automated Testing
17 24 (40.00%) ASP.NET Web API
17 24 (40.00%) Docker

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 22 (36.67%) IIS
1 22 (36.67%) NServiceBus
2 1 (1.67%) Oracle SOA Suite
Applications
1 5 (8.33%) MS Excel
1 5 (8.33%) MS Office
Business Applications
1 6 (10.00%) Dynamics CRM
2 2 (3.33%) RMDS
Cloud Services
1 24 (40.00%) Microsoft Azure
2 19 (31.67%) Amazon AWS
3 4 (6.67%) SaaS
Database & Business Intelligence
1 37 (61.67%) NoSQL
2 27 (45.00%) SQL Server
3 26 (43.33%) Couchbase
3 26 (43.33%) Event Store
3 26 (43.33%) Redis
4 24 (40.00%) Azure SQL Database
5 22 (36.67%) Apache Cassandra
5 22 (36.67%) CouchDB
5 22 (36.67%) RavenDB
6 9 (15.00%) MongoDB
6 9 (15.00%) SQL Server Reporting Services
7 3 (5.00%) SQL Server 2008
8 2 (3.33%) Relational Database
8 2 (3.33%) SQL Server Analysis Services
9 1 (1.67%) Mixpanel
9 1 (1.67%) SQLite
Development Applications
1 24 (40.00%) TeamCity
2 22 (36.67%) JSUnit
3 6 (10.00%) Team Foundation Server
4 5 (8.33%) Atlassian Bamboo
4 5 (8.33%) Git (software)
4 5 (8.33%) Subversion
5 4 (6.67%) JIRA
6 3 (5.00%) NuGet
7 2 (3.33%) CodeRush
7 2 (3.33%) Jasmine
7 2 (3.33%) Jenkins
7 2 (3.33%) Karma Test Runner
7 2 (3.33%) Octopus Deploy
7 2 (3.33%) ReSharper
7 2 (3.33%) SpecFlow
8 1 (1.67%) Crashlytics
8 1 (1.67%) gulp
8 1 (1.67%) Protractor
8 1 (1.67%) webpack
8 1 (1.67%) WebStorm
General
1 12 (20.00%) Games
2 9 (15.00%) Banking
3 5 (8.33%) Pharmaceutical
4 4 (6.67%) Finance
5 3 (5.00%) Investment Banking
Job Titles
1 44 (73.33%) Developer
2 40 (66.67%) .NET Developer
3 28 (46.67%) C# Developer
4 26 (43.33%) C# .NET Developer
5 15 (25.00%) Senior Developer
6 14 (23.33%) Senior .NET Developer
7 12 (20.00%) Agile .NET Developer
7 12 (20.00%) Agile C# Developer
7 12 (20.00%) Agile Developer
8 11 (18.33%) C# Software Engineer
8 11 (18.33%) Software Engineer
9 10 (16.67%) .NET Software Engineer
10 8 (13.33%) Senior C# Software Engineer
10 8 (13.33%) Senior Software Engineer
11 7 (11.67%) Senior .NET Software Engineer
11 7 (11.67%) SQL Developer
12 6 (10.00%) Senior C# .NET Developer
12 6 (10.00%) Senior C# Developer
12 6 (10.00%) WCF Developer
12 6 (10.00%) WPF Developer
Libraries, Frameworks & Software Standards
1 53 (88.33%) .NET
2 40 (66.67%) AngularJS
3 37 (61.67%) HTML
3 37 (61.67%) HTML5
4 34 (56.67%) WCF
5 32 (53.33%) .NET Framework
6 27 (45.00%) CSS
7 25 (41.67%) Web Services
8 24 (40.00%) ASP.NET Web API
9 23 (38.33%) Entity Framework
9 23 (38.33%) LESS
9 23 (38.33%) MSMQ
9 23 (38.33%) REST
9 23 (38.33%) RxJS
10 22 (36.67%) Durandal
11 14 (23.33%) WPF
12 10 (16.67%) ASP.NET
12 10 (16.67%) ASP.NET MVC
13 9 (15.00%) Task Parallel Library
14 8 (13.33%) Akka
Miscellaneous
1 22 (36.67%) User Experience
2 18 (30.00%) Blog
3 9 (15.00%) Enterprise Software
4 8 (13.33%) Hedge funds
5 6 (10.00%) Xbox
6 4 (6.67%) Algorithms
7 3 (5.00%) Credit Risk
7 3 (5.00%) Fintech
7 3 (5.00%) Fixed Income
7 3 (5.00%) Market Risk
Operating Systems
1 31 (51.67%) Windows
2 22 (36.67%) Windows Server
2 22 (36.67%) Windows Server 2012
3 1 (1.67%) Android
3 1 (1.67%) Apple iOS
Processes & Methodologies
1 42 (70.00%) TDD
2 33 (55.00%) Agile Software Development
3 30 (50.00%) DevOps
4 26 (43.33%) Domain-Driven Design
5 24 (40.00%) Automated Testing
5 24 (40.00%) SOA
5 24 (40.00%) SOLID
6 22 (36.67%) Infrastructure Management
6 22 (36.67%) Performance Tuning
6 22 (36.67%) Unit Testing
7 16 (26.67%) Multithreading
7 16 (26.67%) Software Engineering
8 14 (23.33%) MVC
9 13 (21.67%) BDD
10 11 (18.33%) Microservices
11 10 (16.67%) CQRS
11 10 (16.67%) Low Latency
12 9 (15.00%) Continuous Integration
12 9 (15.00%) MVVM
13 8 (13.33%) Functional Programming
Programming Languages
1 58 (96.67%) C#
2 50 (83.33%) SQL
3 33 (55.00%) JavaScript
4 28 (46.67%) T-SQL
5 22 (36.67%) PowerShell
6 12 (20.00%) F#
7 4 (6.67%) Java
8 3 (5.00%) C
8 3 (5.00%) C++
8 3 (5.00%) Python
9 2 (3.33%) TypeScript
10 1 (1.67%) Kotlin
Quality Assurance & Compliance
1 5 (8.33%) PMO
1 5 (8.33%) QA
System Software
1 24 (40.00%) Docker
Systems Management
1 22 (36.67%) Opscode Chef
1 22 (36.67%) Puppet
2 2 (3.33%) MOM
Vendors
1 39 (65.00%) Microsoft
2 3 (5.00%) Google
3 2 (3.33%) TIBCO
4 1 (1.67%) Oracle
Suffolk
Ampersand Consulting
Salary: £40000 - £45000 per annum + Fantastic Benefits
Posted: 5 days ago
Central London / West End
Pimlico Banks Recruitment
Salary: Up to £90,000 per annum + Excellent Benefits
Posted: 6 days ago
London
Anthony Cole Associates
Salary: £45,000 - £60,000 per year
Posted: 4 days ago
London
Anthony Cole Associates
Salary: £30,000 - £45,000 per year
Posted: 4 days ago
Preston, Lancashire
Cegedimrx
Salary: Up to £50,000 per annum Plus Company Benefits
Posted: 17 days ago