The following table provides summary statistics for permanent job vacancies advertised in London 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 28 March 2017 with a comparison to the same period in the previous 2 years.

Reactive Extensions (Rx)
England / London
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 561 607 652
Rank change year-on-year +46 +45  
Permanent jobs citing Reactive Extensions 16 48 11
As % of all permanent IT jobs advertised in London 0.047% 0.11% 0.026%
As % of the Libraries, Frameworks & Software Standards category 0.12% 0.29% 0.069%
Number of salaries quoted 14 48 10
Median salary £66,250 £80,000 £62,500
Median salary % change year-on-year -17.18% +28.00%  
90% offered a salary of more than £62,500 £38,500 £60,000
10% offered a salary of more than £90,000 £100,000 £70,750
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 advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
London
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 13536 16829 15871
As % of all permanent IT job vacancies advertised in London 40.13% 39.91% 36.99%
Number of salaries quoted 11660 14695 13462
Median salary £57,500 £55,000 £54,500
Median salary % change year-on-year +4.54% +0.91%  
90% offered a salary of more than £38,000 £37,500 £35,500
10% offered a salary of more than £80,000 £72,500 £77,500
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +6.25%  

Reactive Extensions
Job Vacancy Trend in London

The job posting trend of jobs advertised in London 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 London

Reactive Extensions
Salary Trend in London

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

Salary trend for Reactive Extensions in London

Reactive Extensions
Salary Histogram in London

The salary distribution of IT jobs citing Reactive Extensions in London over the 3 months to 28 March 2017.

Salary histogram for Reactive Extensions in London

Reactive Extensions
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Reactive Extensions within the London region over the 3 months to 28 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
City of London +32 2 £90,000 -10.00%
Reactive Extensions
England

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

1 25 (96.15%) C#
2 24 (92.31%) .NET
3 16 (61.54%) SQL
3 16 (61.54%) Multithreading
3 16 (61.54%) NoSQL
4 15 (57.69%) TDD
5 14 (53.85%) WPF
5 14 (53.85%) HTML
5 14 (53.85%) HTML5
6 13 (50.00%) F#
6 13 (50.00%) Software Engineering
6 13 (50.00%) Games
7 11 (42.31%) Agile Software Development
7 11 (42.31%) CQRS
8 10 (38.46%) Low Latency
9 9 (34.62%) Banking
9 9 (34.62%) AngularJS
9 9 (34.62%) Task Parallel Library
9 9 (34.62%) Continuous Integration
10 8 (30.77%) Hedge funds
10 8 (30.77%) Akka
10 8 (30.77%) Mathematics
10 8 (30.77%) JavaScript
10 8 (30.77%) Functional Programming
10 8 (30.77%) Microservices
10 8 (30.77%) DevOps
11 7 (26.92%) Microsoft
11 7 (26.92%) MongoDB
12 6 (23.08%) Open Source
12 6 (23.08%) WCF

Reactive Extensions
Co-occurring 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 1 (3.85%) Oracle SOA Suite
Applications
1 1 (3.85%) MS Excel
1 1 (3.85%) MS Office
Business Applications
1 2 (7.69%) RMDS
Database & Business Intelligence
1 16 (61.54%) NoSQL
2 7 (26.92%) MongoDB
3 5 (19.23%) Event Store
3 5 (19.23%) SQL Server
4 4 (15.38%) Couchbase
4 4 (15.38%) Redis
5 3 (11.54%) SQL Server 2008
5 3 (11.54%) SQL Server Reporting Services
6 2 (7.69%) Relational Database
6 2 (7.69%) SQL Server Analysis Services
7 1 (3.85%) Mixpanel
7 1 (3.85%) SQLite
Development Applications
1 6 (23.08%) Atlassian Bamboo
2 4 (15.38%) JIRA
3 3 (11.54%) Jenkins
3 3 (11.54%) NuGet
3 3 (11.54%) Octopus Deploy
3 3 (11.54%) Subversion
4 2 (7.69%) CodeRush
4 2 (7.69%) Git (software)
4 2 (7.69%) ReSharper
4 2 (7.69%) TeamCity
5 1 (3.85%) Crashlytics
5 1 (3.85%) Gradle
5 1 (3.85%) gulp
5 1 (3.85%) Jasmine
5 1 (3.85%) Karma Test Runner
5 1 (3.85%) Protractor
General
1 13 (50.00%) Games
2 9 (34.62%) Banking
3 3 (11.54%) Investment Banking
4 2 (7.69%) Finance
5 1 (3.85%) Pharmaceutical
Job Titles
1 16 (61.54%) Developer
2 13 (50.00%) .NET Developer
3 10 (38.46%) C# Software Engineer
3 10 (38.46%) Software Engineer
4 9 (34.62%) .NET Software Engineer
4 9 (34.62%) C# Developer
5 8 (30.77%) Senior C# Software Engineer
5 8 (30.77%) Senior Software Engineer
6 7 (26.92%) C# .NET Developer
6 7 (26.92%) Senior .NET Software Engineer
7 6 (23.08%) WPF Developer
8 4 (15.38%) DevOps Engineer
8 4 (15.38%) Senior DevOps
8 4 (15.38%) Senior DevOps Engineer
9 3 (11.54%) SQL Developer
10 2 (7.69%) .NET Software Developer
10 2 (7.69%) C# Software Developer
10 2 (7.69%) Credit Risk Developer
10 2 (7.69%) Developer/Software Engineer
10 2 (7.69%) Market Risk Developer
Libraries, Frameworks & Software Standards
1 24 (92.31%) .NET
2 14 (53.85%) HTML
2 14 (53.85%) HTML5
2 14 (53.85%) WPF
3 9 (34.62%) AngularJS
3 9 (34.62%) Task Parallel Library
4 8 (30.77%) Akka
5 6 (23.08%) WCF
6 5 (19.23%) ActiveMQ
6 5 (19.23%) LINQ
6 5 (19.23%) React
7 4 (15.38%) .NET Framework
7 4 (15.38%) CSS
7 4 (15.38%) CSS3
7 4 (15.38%) MSMQ
7 4 (15.38%) Polymer
7 4 (15.38%) XML
8 3 (11.54%) ASP.NET
8 3 (11.54%) SOAP
8 3 (11.54%) Web Services
Miscellaneous
1 8 (30.77%) Hedge funds
2 6 (23.08%) Xbox
3 3 (11.54%) Credit Risk
3 3 (11.54%) Enterprise Software
3 3 (11.54%) Fixed Income
3 3 (11.54%) Market Risk
4 1 (3.85%) Fintech
Operating Systems
1 3 (11.54%) Windows
2 1 (3.85%) Android
2 1 (3.85%) Apple iOS
Processes & Methodologies
1 16 (61.54%) Multithreading
2 15 (57.69%) TDD
3 13 (50.00%) Software Engineering
4 11 (42.31%) Agile Software Development
4 11 (42.31%) CQRS
5 10 (38.46%) Low Latency
6 9 (34.62%) Continuous Integration
7 8 (30.77%) DevOps
7 8 (30.77%) Functional Programming
7 8 (30.77%) Mathematics
7 8 (30.77%) Microservices
8 6 (23.08%) Open Source
9 5 (19.23%) Domain-Driven Design
10 3 (11.54%) High Availability
10 3 (11.54%) Integration Testing
10 3 (11.54%) MVVM
10 3 (11.54%) Stress Testing
10 3 (11.54%) Technical Analysis
10 3 (11.54%) Test Scripting
10 3 (11.54%) User Acceptance Testing
Programming Languages
1 25 (96.15%) C#
2 16 (61.54%) SQL
3 13 (50.00%) F#
4 8 (30.77%) JavaScript
5 6 (23.08%) T-SQL
6 4 (15.38%) Java
7 3 (11.54%) C
7 3 (11.54%) C++
7 3 (11.54%) Python
8 1 (3.85%) Kotlin
8 1 (3.85%) TypeScript
Quality Assurance & Compliance
1 1 (3.85%) PMO
1 1 (3.85%) QA
System Software
1 3 (11.54%) Docker
Systems Management
1 2 (7.69%) MOM
Vendors
1 7 (26.92%) Microsoft
2 3 (11.54%) Google
3 2 (7.69%) TIBCO
4 1 (3.85%) Oracle
London
Anthony Cole Associates
Salary: £45,000 - £60,000 per year
Posted: 6 days ago
London
Anthony Cole Associates
Salary: £30,000 - £45,000 per year
Posted: 6 days ago