Period
to 21 October 2019

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 21 October 2019 with a comparison to the same period in the previous 2 years.

Reactive Extensions for .NET (Rx.NET)
UK
6 months to
21 Oct 2019
Same period 2018 Same period 2017
Rank 976 1070 1096
Rank change year-on-year +94 +26 +84
Permanent jobs citing Reactive Extensions 100 95 119
As % of all permanent IT jobs advertised in the UK 0.073% 0.058% 0.068%
As % of the Libraries, Frameworks & Software Standards category 0.19% 0.15% 0.17%
Number of salaries quoted 37 73 77
UK median annual salary £65,000 £67,500 £57,500
Median salary % change year-on-year -3.70% +17.39% +15.00%
10th Percentile £45,000 £45,000 £47,500
90th Percentile £86,500 £91,000 £82,500
UK excluding London median annual salary £55,000 £52,500 £55,000
% change year-on-year +4.76% -4.55% +15.79%

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 51,320 65,415 70,019
As % of all permanent IT jobs advertised in the UK 37.47% 39.99% 40.19%
Number of salaries quoted 42,184 54,101 57,920
UK median annual salary £55,000 £51,274 £50,000
Median salary % change year-on-year +7.27% +2.55% +5.26%
10th Percentile £32,500 £31,250 £29,750
90th Percentile £87,500 £82,500 £77,500
UK excluding London median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% +2.41%

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 21 October 2019.

Salary histogram for Reactive Extensions in the UK

Reactive Extensions
Top 6 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 21 October 2019. 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 +111 97 £65,000 -1.89% 10
London +88 74 £76,250 +5.17% 6
UK excluding London +61 26 £55,000 +4.76% 4
South East - 13 £65,000 -
East of England +56 10 £45,000 -14.29% 3
Wales - 3 £40,000 -

For the 6 months to 21 October 2019, IT jobs citing Reactive Extensions also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for Reactive Extensions.

1 88 (88.00%) .NET
2 83 (83.00%) C#
3 72 (72.00%) Agile Software Development
4 52 (52.00%) F#
5 51 (51.00%) TDD
6 48 (48.00%) React
7 43 (43.00%) TypeScript
8 33 (33.00%) SQL
9 32 (32.00%) Multithreading
10 30 (30.00%) Redux
11 29 (29.00%) .NET Core
11 29 (29.00%) Computer Science
12 28 (28.00%) OOA/OOD
13 26 (26.00%) E-Commerce
13 26 (26.00%) MySQL
13 26 (26.00%) OOD
13 26 (26.00%) ActiveMQ
13 26 (26.00%) Games
13 26 (26.00%) Algorithmic Trading
13 26 (26.00%) Azure
13 26 (26.00%) AWS
13 26 (26.00%) REST
13 26 (26.00%) Kibana
13 26 (26.00%) Functional Programming
13 26 (26.00%) GitHub
13 26 (26.00%) Data Structures
13 26 (26.00%) Algorithms
13 26 (26.00%) Event Store
13 26 (26.00%) Proprietary Trading
13 26 (26.00%) Grafana

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 1 (1.00%) SharePoint
Business Applications
1 8 (8.00%) Dynamics CRM
Cloud Services
1 26 (26.00%) AWS
1 26 (26.00%) Azure
1 26 (26.00%) GitHub
2 5 (5.00%) Dynamics 365
3 2 (2.00%) npm
3 2 (2.00%) Yarn
Communications & Networking
1 4 (4.00%) Internet
Database & Business Intelligence
1 26 (26.00%) Event Store
1 26 (26.00%) MySQL
2 12 (12.00%) SQL Server Reporting Services
3 1 (1.00%) SQL Server
Development Applications
1 14 (14.00%) TeamCity
2 12 (12.00%) Team Foundation Server
3 10 (10.00%) Git (software)
3 10 (10.00%) webpack
4 8 (8.00%) JIRA
5 6 (6.00%) Octopus Deploy
6 5 (5.00%) Visual Studio
General
1 26 (26.00%) Games
2 11 (11.00%) Finance
3 9 (9.00%) Front Office
4 4 (4.00%) Public Sector
5 2 (2.00%) Banking
5 2 (2.00%) Investment Banking
5 2 (2.00%) Retail
Job Titles
1 94 (94.00%) Developer
2 68 (68.00%) C# Developer
3 52 (52.00%) F# Developer
4 11 (11.00%) C# WPF Developer
4 11 (11.00%) WPF Developer
5 9 (9.00%) .NET Developer
5 9 (9.00%) Front Office Developer
6 8 (8.00%) Full Stack Developer
7 6 (6.00%) Lead Developer
7 6 (6.00%) React Developer
8 5 (5.00%) CRM Developer
8 5 (5.00%) Microsoft Developer
9 4 (4.00%) Machine Learning Developer
10 3 (3.00%) C# WCF Developer
10 3 (3.00%) Senior Developer
10 3 (3.00%) Software Engineer
10 3 (3.00%) Software Test Engineer
10 3 (3.00%) Test Engineer
10 3 (3.00%) WCF Developer
11 2 (2.00%) Front End Developer (Client-Side Developer)
Libraries, Frameworks & Software Standards
1 88 (88.00%) .NET
2 48 (48.00%) React
3 30 (30.00%) Redux
4 29 (29.00%) .NET Core
5 26 (26.00%) ActiveMQ
5 26 (26.00%) Akka.NET
5 26 (26.00%) REST
6 19 (19.00%) WPF
7 18 (18.00%) HTML
8 17 (17.00%) WebSockets
9 12 (12.00%) Managed Extensibility Framework
9 12 (12.00%) WCF
10 9 (9.00%) AngularJS
10 9 (9.00%) HTML5
11 8 (8.00%) CSS
11 8 (8.00%) Protocol Buffers
11 8 (8.00%) XML
12 6 (6.00%) .NET Framework
12 6 (6.00%) SignalR
13 5 (5.00%) SOAP
Miscellaneous
1 26 (26.00%) Algorithms
1 26 (26.00%) Cloud Native
1 26 (26.00%) Data Structures
2 7 (7.00%) Enterprise Software
3 6 (6.00%) Equities
4 5 (5.00%) Greenfield Project
5 4 (4.00%) User Experience
5 4 (4.00%) Virtual Team
6 2 (2.00%) Derivative
6 2 (2.00%) Fixed Income
6 2 (2.00%) Mobile App
7 1 (1.00%) Foreign Exchange (FX)
7 1 (1.00%) Hedge funds
Operating Systems
1 12 (12.00%) Windows
2 2 (2.00%) Android
2 2 (2.00%) Apple iOS
Processes & Methodologies
1 72 (72.00%) Agile Software Development
2 51 (51.00%) TDD
3 32 (32.00%) Multithreading
4 29 (29.00%) Computer Science
5 28 (28.00%) OOA/OOD
6 26 (26.00%) Algorithmic Trading
6 26 (26.00%) E-Commerce
6 26 (26.00%) Functional Programming
6 26 (26.00%) OOD
6 26 (26.00%) Problem-Solving
6 26 (26.00%) Proprietary Trading
7 14 (14.00%) MVVM
8 12 (12.00%) Workflow
9 8 (8.00%) Concurrent Programming
9 8 (8.00%) Continuous Integration
9 8 (8.00%) CRM
9 8 (8.00%) Issue Tracking
10 7 (7.00%) BDD
10 7 (7.00%) Pair Programming
10 7 (7.00%) Technical Leadership
Programming Languages
1 83 (83.00%) C#
2 52 (52.00%) F#
3 43 (43.00%) TypeScript
4 33 (33.00%) SQL
5 23 (23.00%) JavaScript
6 7 (7.00%) XAML
7 4 (4.00%) Java
8 2 (2.00%) Apple Swift
8 2 (2.00%) Objective-C
8 2 (2.00%) Scala
Qualifications
1 8 (8.00%) Degree
2 5 (5.00%) Computer Science Degree
2 5 (5.00%) MCITP
2 5 (5.00%) Microsoft Certification
Systems Management
1 26 (26.00%) Grafana
1 26 (26.00%) Kibana
Vendors
1 12 (12.00%) Microsoft
2 8 (8.00%) Google
3 2 (2.00%) Atlassian
4 1 (1.00%) CheckPoint