Job Vacancy Trend Salary Trend Job Locations Skill Sets
Period
to 18 September 2019

The following table provides summary statistics for permanent job vacancies with a requirement for ReactiveX skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ReactiveX over the 6 months to 18 September 2019 with a comparison to the same period in the previous 2 years.

ReactiveX
UK
6 months to
18 Sep 2019		 Same period 2018 Same period 2017
Rank 1082 1184 1216
Rank change year-on-year +102 +32 -
Permanent jobs citing ReactiveX 7 2 5
As % of all permanent IT jobs advertised in the UK 0.005% 0.001% 0.003%
As % of the Libraries, Frameworks & Software Standards category 0.013% 0.003% 0.007%
Number of salaries quoted 1 2 5
UK median annual salary £35,000 £52,500 £27,500
Median salary % change year-on-year -33.33% +90.91% -
10th Percentile £32,500 £30,500 £26,250
90th Percentile £37,500 £74,500 £28,750
UK excluding London median annual salary - £25,000 £27,500
% change year-on-year - -9.09% -

ReactiveX 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 52,929 67,154 71,103
As % of all permanent IT jobs advertised in the UK 37.38% 40.03% 40.31%
Number of salaries quoted 43,379 55,683 58,825
UK median annual salary £52,500 £50,000 £47,500
Median salary % change year-on-year +5.00% +5.26% -
10th Percentile £32,250 £31,250 £29,000
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%

ReactiveX
Job Vacancy Trend

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

Job vacancy trend for ReactiveX in the UK

ReactiveX
Salary Trend

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

Salary trend for ReactiveX in the UK

ReactiveX
Top 4 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ReactiveX within the UK over the 6 months to 18 September 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
UK excluding London +65 6 - - 1
Scotland - 6 - -
England +106 1 £35,000 -33.33% 1
London +89 1 £35,000 -56.25%

For the 6 months to 18 September 2019, IT jobs citing ReactiveX 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 ReactiveX.

1 6 (85.71%) C#
1 6 (85.71%) Azure
2 5 (71.43%) Test Automation
2 5 (71.43%) .NET Framework
2 5 (71.43%) ASP.NET MVC
2 5 (71.43%) Continuous Improvement
2 5 (71.43%) Mobile App
2 5 (71.43%) Mobile Application Development
2 5 (71.43%) .NET
2 5 (71.43%) ASP.NET
2 5 (71.43%) MVC
2 5 (71.43%) Agile Software Development
2 5 (71.43%) ASP.NET Web API
2 5 (71.43%) Kotlin
2 5 (71.43%) Self-Motivation
3 2 (28.57%) npm
3 2 (28.57%) RxJS
3 2 (28.57%) Front End Development
3 2 (28.57%) Software Engineering
3 2 (28.57%) JavaScript
3 2 (28.57%) TypeScript
3 2 (28.57%) AngularJS
3 2 (28.57%) Git (software)
4 1 (14.29%) jQuery
4 1 (14.29%) PowerShell
4 1 (14.29%) RESTful
4 1 (14.29%) AWS
4 1 (14.29%) Twitter Bootstrap
4 1 (14.29%) SaaS
4 1 (14.29%) Bash Shell

ReactiveX
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:

Cloud Services
1 6 (85.71%) Azure
2 2 (28.57%) npm
3 1 (14.29%) AWS
3 1 (14.29%) SaaS
3 1 (14.29%) Yarn
Development Applications
1 2 (28.57%) Git (software)
2 1 (14.29%) webpack
General
1 1 (14.29%) Law
Job Titles
1 7 (100.00%) Developer
2 5 (71.43%) Software Developer
3 2 (28.57%) Front End Developer (Client-Side Developer)
4 1 (14.29%) Angular Developer
4 1 (14.29%) JavaScript Developer
4 1 (14.29%) React Developer
Libraries, Frameworks & Software Standards
1 5 (71.43%) .NET
1 5 (71.43%) .NET Framework
1 5 (71.43%) ASP.NET
1 5 (71.43%) ASP.NET MVC
1 5 (71.43%) ASP.NET Web API
2 2 (28.57%) AngularJS
2 2 (28.57%) RxJS
3 1 (14.29%) CSS
3 1 (14.29%) HTML
3 1 (14.29%) HTML5
3 1 (14.29%) jQuery
3 1 (14.29%) React
3 1 (14.29%) RESTful
3 1 (14.29%) RxJava
3 1 (14.29%) SOAP
3 1 (14.29%) Twitter Bootstrap
3 1 (14.29%) Vue.js
3 1 (14.29%) Web Services
3 1 (14.29%) XML
3 1 (14.29%) XML-RPC
Miscellaneous
1 5 (71.43%) Mobile App
1 5 (71.43%) Self-Motivation
Processes & Methodologies
1 5 (71.43%) Agile Software Development
1 5 (71.43%) Continuous Improvement
1 5 (71.43%) Mobile Application Development
1 5 (71.43%) MVC
1 5 (71.43%) Test Automation
2 2 (28.57%) Front End Development
2 2 (28.57%) Software Engineering
3 1 (14.29%) DevOps
3 1 (14.29%) Project Planning
3 1 (14.29%) TDD
3 1 (14.29%) Technical Leadership
Programming Languages
1 6 (85.71%) C#
2 5 (71.43%) Kotlin
3 2 (28.57%) JavaScript
3 2 (28.57%) TypeScript
4 1 (14.29%) Bash Shell
4 1 (14.29%) Java
4 1 (14.29%) PowerShell
4 1 (14.29%) Shell Script
Qualifications
1 1 (14.29%) DBS Check