Period
to 18 November 2017

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 6 months to 18 November 2017 with a comparison to the same period in the previous 2 years.

Reactive Extensions for .NET (Rx.NET)
England > London
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 771 818 841
Rank change year-on-year +47 +23 +33
Permanent jobs citing Reactive Extensions 73 26 75
As % of all permanent IT jobs advertised in London 0.097% 0.034% 0.084%
As % of the Libraries, Frameworks & Software Standards category 0.25% 0.085% 0.22%
Number of salaries quoted 34 25 75
London median annual salary £70,000 £80,000 £82,500
Median salary % change year-on-year -12.50% -3.03% +17.86%
10th Percentile £50,000 £56,250 £36,750
90th Percentile £102,625 £104,750 £106,250
England median annual salary £57,500 £52,500 £80,000
% change year-on-year +9.52% -34.38% +33.33%

Reactive Extensions is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 29278 30494 33564
As % of all permanent IT jobs advertised in London 39.03% 40.14% 37.60%
Number of salaries quoted 23816 26848 28766
London median annual salary £60,000 £57,500 £55,000
Median salary % change year-on-year +4.35% +4.55% +4.76%
10th Percentile £36,250 £35,000 £34,142
90th Percentile £90,000 £86,250 £83,750
England median annual salary £50,000 £47,500 £45,000
% change year-on-year +5.26% +5.56% -

Reactive Extensions
Job Vacancy Trend in London

Job postings citing Reactive Extensions as a percentage of all IT jobs advertised in London.

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 6 months to 18 November 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 6 months to 18 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
West London - 3 £72,500 -
Reactive Extensions
England

For the 6 months to 18 November 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 58 (79.45%) Agile Software Development
2 57 (78.08%) C#
3 54 (73.97%) .NET
3 54 (73.97%) TDD
4 51 (69.86%) Multithreading
5 42 (57.53%) Computer Science
6 38 (52.05%) F#
6 38 (52.05%) Games
6 38 (52.05%) SQL
6 38 (52.05%) E-Commerce
6 38 (52.05%) Akka
7 37 (50.68%) Data Structures
7 37 (50.68%) Algorithms
7 37 (50.68%) OOD
7 37 (50.68%) OOA/OOD
7 37 (50.68%) Algorithmic Trading
8 20 (27.40%) Java
9 18 (24.66%) WPF
9 18 (24.66%) RESTful
10 17 (23.29%) Git (software)
10 17 (23.29%) User Experience
11 16 (21.92%) Android
12 15 (20.55%) Android SDK
12 15 (20.55%) Android Development
13 14 (19.18%) Gradle
14 13 (17.81%) Dependency Injection
14 13 (17.81%) Apple iOS
15 12 (16.44%) BDD
15 12 (16.44%) iOS SDK
15 12 (16.44%) C++

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 2 (2.74%) MTS
2 1 (1.37%) IIS
2 1 (1.37%) NServiceBus
Cloud Services
1 1 (1.37%) Amazon AWS
1 1 (1.37%) GitHub
1 1 (1.37%) Google Play
1 1 (1.37%) Microsoft Azure
Communications & Networking
1 1 (1.37%) AMQP
Database & Business Intelligence
1 4 (5.48%) SQL Server
2 3 (4.11%) Mixpanel
3 2 (2.74%) Redis
3 2 (2.74%) SQLite
4 1 (1.37%) Apache Cassandra
4 1 (1.37%) Azure SQL Database
4 1 (1.37%) Couchbase
4 1 (1.37%) CouchDB
4 1 (1.37%) Event Store
4 1 (1.37%) KDB
4 1 (1.37%) NoSQL
4 1 (1.37%) PostgreSQL
4 1 (1.37%) RavenDB
4 1 (1.37%) Relational Database
Development Applications
1 17 (23.29%) Git (software)
2 14 (19.18%) Gradle
3 6 (8.22%) NUnit
3 6 (8.22%) TeamCity
4 5 (6.85%) JUnit
4 5 (6.85%) Moq
4 5 (6.85%) MSTest
5 3 (4.11%) Crashlytics
5 3 (4.11%) JIRA
6 1 (1.37%) JSUnit
6 1 (1.37%) Mocha
6 1 (1.37%) SpecFlow
General
1 38 (52.05%) Games
2 10 (13.70%) Retail
3 6 (8.22%) Banking
3 6 (8.22%) Finance
3 6 (8.22%) Front Office
4 3 (4.11%) Investment Banking
5 1 (1.37%) Electronics
5 1 (1.37%) Manufacturing
5 1 (1.37%) Marketing
5 1 (1.37%) Telecoms
Job Titles
1 70 (95.89%) Developer
2 52 (71.23%) C# Developer
3 14 (19.18%) Android Developer
4 9 (12.33%) .NET Developer
5 7 (9.59%) C# .NET Developer
6 5 (6.85%) C# WPF Developer
6 5 (6.85%) Front Office Developer
6 5 (6.85%) WPF Developer
7 4 (5.48%) Lead Developer
7 4 (5.48%) Senior Developer
8 3 (4.11%) Senior C# Developer
9 2 (2.74%) C# GUI Developer
9 2 (2.74%) C# Pricing Developer
9 2 (2.74%) C# Software Engineer
9 2 (2.74%) GUI Developer
9 2 (2.74%) Lead Android Developer
9 2 (2.74%) Lead C# Developer
9 2 (2.74%) Pricing Developer
9 2 (2.74%) Software Engineer
9 2 (2.74%) Team Leader
Libraries, Frameworks & Software Standards
1 54 (73.97%) .NET
2 38 (52.05%) Akka
3 18 (24.66%) RESTful
3 18 (24.66%) WPF
4 15 (20.55%) Android SDK
5 12 (16.44%) iOS SDK
5 12 (16.44%) Material Design
6 10 (13.70%) WCF
7 6 (8.22%) .NET Framework
7 6 (8.22%) Entity Framework
7 6 (8.22%) HTML
7 6 (8.22%) HTML5
7 6 (8.22%) Middleware
7 6 (8.22%) RabbitMQ
8 5 (6.85%) LINQ
8 5 (6.85%) React
8 5 (6.85%) REST
8 5 (6.85%) Task Parallel Library
8 5 (6.85%) WinForms
9 4 (5.48%) RxJava
Miscellaneous
1 42 (57.53%) Computer Science
2 37 (50.68%) Algorithms
2 37 (50.68%) Data Structures
3 17 (23.29%) User Experience
4 6 (8.22%) Hedge funds
5 5 (6.85%) Equities
6 4 (5.48%) Credit Derivative
6 4 (5.48%) Derivative
6 4 (5.48%) Fixed Income
6 4 (5.48%) Foreign Exchange (FX)
7 3 (4.11%) Fintech
8 2 (2.74%) Greenfield Project
8 2 (2.74%) Xbox
9 1 (1.37%) Blog
Operating Systems
1 16 (21.92%) Android
2 13 (17.81%) Apple iOS
3 4 (5.48%) Windows
4 1 (1.37%) Windows Server
4 1 (1.37%) Windows Server 2012
Processes & Methodologies
1 58 (79.45%) Agile Software Development
2 54 (73.97%) TDD
3 51 (69.86%) Multithreading
4 38 (52.05%) E-Commerce
5 37 (50.68%) Algorithmic Trading
5 37 (50.68%) OOA/OOD
5 37 (50.68%) OOD
6 15 (20.55%) Android Development
7 13 (17.81%) Dependency Injection
8 12 (16.44%) BDD
9 9 (12.33%) OO
10 8 (10.96%) MVVM
11 6 (8.22%) Software Engineering
11 6 (8.22%) Unit Testing
12 5 (6.85%) Analytics
12 5 (6.85%) Multithreaded Programming
12 5 (6.85%) OOP
12 5 (6.85%) Systematic Trading
13 4 (5.48%) Front End Development
13 4 (5.48%) Line Management
Programming Languages
1 57 (78.08%) C#
2 38 (52.05%) F#
2 38 (52.05%) SQL
3 20 (27.40%) Java
4 12 (16.44%) C++
4 12 (16.44%) Ruby
5 11 (15.07%) Apple Swift
6 6 (8.22%) Python
7 4 (5.48%) Kotlin
7 4 (5.48%) XAML
8 1 (1.37%) JavaScript
8 1 (1.37%) PowerShell
8 1 (1.37%) T-SQL
Qualifications
1 10 (13.70%) Degree
2 5 (6.85%) Computer Science Degree
System Software
1 1 (1.37%) Docker
Systems Management
1 1 (1.37%) Opscode Chef
1 1 (1.37%) Puppet
Vendors
1 5 (6.85%) Microsoft
2 3 (4.11%) Google
3 2 (2.74%) Bloomberg
3 2 (2.74%) eSpeed
3 2 (2.74%) Sybase
3 2 (2.74%) TIBCO
3 2 (2.74%) Tradeweb
4 1 (1.37%) SAP
4 1 (1.37%) Sitecore