Period
to 24 November 2017

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 6 months to 24 November 2017 with a comparison to the same period in the previous 2 years.

Reactive Extensions for .NET (Rx.NET)
UK
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 1088 1155 1238
Rank change year-on-year +67 +83 +3
Permanent jobs citing Reactive Extensions 123 67 85
As % of all permanent IT jobs advertised in the UK 0.068% 0.035% 0.039%
As % of the Libraries, Frameworks & Software Standards category 0.17% 0.091% 0.10%
Number of salaries quoted 77 66 83
UK median annual salary £57,500 £52,500 £80,000
Median salary % change year-on-year +9.52% -34.38% +28.00%
10th Percentile £46,500 £40,625 £36,750
90th Percentile £82,500 £90,000 £105,750
UK excluding London median annual salary £55,000 £47,500 £40,000
% change year-on-year +15.79% +18.75% -5.88%

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 with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 72157 73878 83187
As % of all permanent IT jobs advertised in the UK 40.06% 39.04% 38.02%
Number of salaries quoted 59988 64108 71150
UK median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% +2.27%
10th Percentile £29,750 £28,750 £27,500
90th Percentile £77,500 £76,250 £73,750
UK excluding London median annual salary £42,500 £42,043 £40,000
% change year-on-year +1.09% +5.11% -

Reactive Extensions
Job Vacancy Trend

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

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 6 months to 24 November 2017.

Salary histogram for Reactive Extensions in the UK

Reactive Extensions
Top 8 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 6 months to 24 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
England +100 123 £57,500 +9.52% 11
London +52 74 £70,000 -9.68% 9
UK excluding London +59 49 £55,000 +15.79% 2
South West - 30 £55,000 - 1
East of England +13 13 £58,750 +23.68%
Midlands - 5 £27,500 -
West Midlands - 5 £27,500 -
South East +27 1 £67,500 +42.11%

For the 6 months to 24 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 with a requirement for Reactive Extensions.

1 73 (59.35%) Agile Software Development
2 62 (50.41%) C#
3 59 (47.97%) .NET
3 59 (47.97%) Multithreading
4 57 (46.34%) TDD
5 52 (42.28%) Computer Science
6 51 (41.46%) Algorithms
7 50 (40.65%) Git (software)
7 50 (40.65%) RESTful
8 48 (39.02%) Android
9 47 (38.21%) Android Development
10 46 (37.40%) Data Structures
11 45 (36.59%) Dependency Injection
12 43 (34.96%) MVVM
12 43 (34.96%) F#
12 43 (34.96%) Akka
13 41 (33.33%) Finance
14 38 (30.89%) Games
14 38 (30.89%) SQL
14 38 (30.89%) E-Commerce
15 37 (30.08%) OOD
15 37 (30.08%) OOA/OOD
15 37 (30.08%) Algorithmic Trading
16 35 (28.46%) WPF
17 34 (27.64%) Kotlin
18 31 (25.20%) Google Play
19 28 (22.76%) Google
20 27 (21.95%) GitHub
21 26 (21.14%) Java
22 23 (18.70%) User Experience

Reactive Extensions
Co-occurring 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 2 (1.63%) MTS
2 1 (0.81%) IIS
2 1 (0.81%) NServiceBus
Cloud Services
1 31 (25.20%) Google Play
2 27 (21.95%) GitHub
3 1 (0.81%) Amazon AWS
3 1 (0.81%) Microsoft Azure
Communications & Networking
1 2 (1.63%) AMQP
Database & Business Intelligence
1 9 (7.32%) SQL Server
2 5 (4.07%) Big Data
2 5 (4.07%) SSDT
3 3 (2.44%) Mixpanel
4 2 (1.63%) KDB
4 2 (1.63%) PostgreSQL
4 2 (1.63%) Redis
4 2 (1.63%) Relational Database
4 2 (1.63%) SQLite
5 1 (0.81%) Apache Cassandra
5 1 (0.81%) Azure SQL Database
5 1 (0.81%) Couchbase
5 1 (0.81%) CouchDB
5 1 (0.81%) Event Store
5 1 (0.81%) NoSQL
5 1 (0.81%) RavenDB
Development Applications
1 50 (40.65%) Git (software)
2 16 (13.01%) Gradle
3 7 (5.69%) NUnit
4 6 (4.88%) TeamCity
5 5 (4.07%) JUnit
5 5 (4.07%) Moq
5 5 (4.07%) MSTest
6 4 (3.25%) Subversion
7 3 (2.44%) Crashlytics
7 3 (2.44%) JIRA
8 2 (1.63%) Mocha
8 2 (1.63%) SpecFlow
9 1 (0.81%) JSUnit
General
1 41 (33.33%) Finance
2 38 (30.89%) Games
3 22 (17.89%) Electronics
3 22 (17.89%) Manufacturing
3 22 (17.89%) Marketing
3 22 (17.89%) Telecoms
4 11 (8.94%) Retail
5 6 (4.88%) Front Office
6 5 (4.07%) Banking
7 3 (2.44%) Investment Banking
Job Titles
1 86 (69.92%) Developer
2 55 (44.72%) C# Developer
3 25 (20.33%) Android Developer
4 22 (17.89%) Android Engineer
5 13 (10.57%) Senior Software Test Engineer
5 13 (10.57%) Senior Test Engineer
5 13 (10.57%) Software Test Engineer
5 13 (10.57%) Test Engineer
6 12 (9.76%) .NET Developer
7 10 (8.13%) C# .NET Developer
8 5 (4.07%) Front Office Developer
8 5 (4.07%) Graduate
8 5 (4.07%) Graduate Developer
8 5 (4.07%) Graduate Software Developer
8 5 (4.07%) Junior
8 5 (4.07%) Junior Developer
8 5 (4.07%) Junior Software Developer
8 5 (4.07%) Programmer
8 5 (4.07%) Senior Developer
8 5 (4.07%) Software Developer
Libraries, Frameworks & Software Standards
1 59 (47.97%) .NET
2 50 (40.65%) RESTful
3 43 (34.96%) Akka
4 35 (28.46%) WPF
5 17 (13.82%) Android SDK
6 16 (13.01%) Retrofit
7 14 (11.38%) iOS SDK
7 14 (11.38%) Material Design
8 11 (8.94%) RabbitMQ
9 10 (8.13%) Task Parallel Library
9 10 (8.13%) WCF
10 9 (7.32%) REST
11 7 (5.69%) Middleware
12 6 (4.88%) .NET Framework
12 6 (4.88%) Entity Framework
12 6 (4.88%) HTML
12 6 (4.88%) HTML5
12 6 (4.88%) React
13 5 (4.07%) ReactiveX
13 5 (4.07%) SignalR
Miscellaneous
1 52 (42.28%) Computer Science
2 51 (41.46%) Algorithms
3 46 (37.40%) Data Structures
4 23 (18.70%) User Experience
5 8 (6.50%) Greenfield Project
6 6 (4.88%) Equities
6 6 (4.88%) Hedge funds
7 4 (3.25%) Credit Derivative
7 4 (3.25%) Derivative
7 4 (3.25%) Fixed Income
7 4 (3.25%) Foreign Exchange (FX)
8 3 (2.44%) Fintech
8 3 (2.44%) Mobile App
9 1 (0.81%) Blog
9 1 (0.81%) Xbox
Operating Systems
1 48 (39.02%) Android
2 15 (12.20%) Apple iOS
3 4 (3.25%) Windows
4 1 (0.81%) Windows Server
4 1 (0.81%) Windows Server 2012
Processes & Methodologies
1 73 (59.35%) Agile Software Development
2 59 (47.97%) Multithreading
3 57 (46.34%) TDD
4 47 (38.21%) Android Development
5 45 (36.59%) Dependency Injection
6 43 (34.96%) MVVM
7 38 (30.89%) E-Commerce
8 37 (30.08%) Algorithmic Trading
8 37 (30.08%) OOA/OOD
8 37 (30.08%) OOD
9 22 (17.89%) Business Intelligence
9 22 (17.89%) Digital Marketing
9 22 (17.89%) Programme Management
10 14 (11.38%) BDD
10 14 (11.38%) Mathematics
10 14 (11.38%) OO
10 14 (11.38%) Test Automation
11 13 (10.57%) Capital Modelling
11 13 (10.57%) Software Testing
11 13 (10.57%) Statistics
Programming Languages
1 62 (50.41%) C#
2 43 (34.96%) F#
3 38 (30.89%) SQL
4 34 (27.64%) Kotlin
5 26 (21.14%) Java
6 14 (11.38%) Ruby
7 13 (10.57%) C++
8 12 (9.76%) Apple Swift
9 9 (7.32%) XAML
10 6 (4.88%) Python
11 1 (0.81%) JavaScript
11 1 (0.81%) PowerShell
11 1 (0.81%) T-SQL
Qualifications
1 21 (17.07%) Degree
2 5 (4.07%) Computer Science Degree
System Software
1 1 (0.81%) Docker
Systems Management
1 1 (0.81%) Opscode Chef
1 1 (0.81%) Puppet
Vendors
1 28 (22.76%) Google
2 22 (17.89%) SAP
3 9 (7.32%) Microsoft
4 5 (4.07%) TOWER Software
4 5 (4.07%) Xamarin
5 2 (1.63%) Bloomberg
5 2 (1.63%) eSpeed
5 2 (1.63%) Sybase
5 2 (1.63%) TIBCO
5 2 (1.63%) Tradeweb
6 1 (0.81%) Sitecore