Period
to 17 January 2021

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 17 January 2021 with a comparison to the same period in the previous 2 years.

ReactiveX
UK
6 months to
17 Jan 2021
Same period 2020 Same period 2019
Rank 745 1002 1107
Rank change year-on-year +257 +105 +60
Permanent jobs citing ReactiveX 11 13 16
As % of all permanent jobs advertised in the UK 0.018% 0.010% 0.011%
As % of the Libraries, Frameworks & Software Standards category 0.041% 0.027% 0.027%
Number of salaries quoted 7 4 16
Median annual salary £60,000 £71,250 £90,000
Median salary % change year-on-year -15.79% -20.83% +28.57%
10th Percentile £57,500 £64,875 £25,000
90th Percentile £87,750 £77,250 £105,000
UK excluding London median annual salary £60,000 £72,500 £25,000
% change year-on-year -17.24% +190.00% -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 26,527 49,011 59,878
As % of all permanent IT jobs advertised in the UK 42.86% 38.86% 39.61%
Number of salaries quoted 22,502 40,599 49,592
Median annual salary £57,500 £55,000 £52,500
Median salary % change year-on-year +4.55% +4.76% +5.00%
10th Percentile £35,000 £32,500 £31,250
90th Percentile £90,000 £90,000 £85,000
UK excluding London median annual salary £50,000 £46,500 £45,000
% change year-on-year +7.53% +3.33% +5.88%

ReactiveX
Job Vacancy Trend

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

Job vacancy trend for ReactiveX in the UK

ReactiveX
Salary Trend

3-month moving average salary quoted in jobs citing ReactiveX.

Salary trend for ReactiveX in the UK

ReactiveX
Salary Histogram

Salary distribution for jobs citing ReactiveX over the 6 months to 17 January 2021.

Salary histogram for ReactiveX in the UK

ReactiveX
Top 7 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 17 January 2021. 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 +275 11 £60,000 -15.79%
UK excluding London +213 7 £60,000 -17.24%
South East +161 5 £60,000 -17.24%
London +204 4 £86,250 +23.21%
Work from Home - 2 £60,000 -
Yorkshire - 2 £60,000 -
North of England - 2 £60,000 -

For the 6 months to 17 January 2021, 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 9 (81.82%) HTML
1 9 (81.82%) JavaScript
1 9 (81.82%) CSS
1 9 (81.82%) HTML5
1 9 (81.82%) Node.js
1 9 (81.82%) CSS3
1 9 (81.82%) Sass
1 9 (81.82%) AngularJS
1 9 (81.82%) TypeScript
1 9 (81.82%) ES6
1 9 (81.82%) RxJS
1 9 (81.82%) Angular 2
1 9 (81.82%) Redux
2 8 (72.73%) NgRx
3 7 (63.64%) Front End Development
3 7 (63.64%) webpack
3 7 (63.64%) Agile Software Development
4 6 (54.55%) TDD
4 6 (54.55%) Git (software)
4 6 (54.55%) Bitbucket
4 6 (54.55%) Atlassian
5 4 (36.36%) Technical Leadership
6 2 (18.18%) Mobile Development
6 2 (18.18%) Software Delivery
6 2 (18.18%) Kotlin
6 2 (18.18%) Android SDK
6 2 (18.18%) Android Development
6 2 (18.18%) Performance Monitoring
6 2 (18.18%) Android Studio
6 2 (18.18%) Robolectric

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:

Database & Business Intelligence
1 2 (18.18%) SQLite
Development Applications
1 7 (63.64%) webpack
2 6 (54.55%) Bitbucket
2 6 (54.55%) Git (software)
3 2 (18.18%) Android Studio
3 2 (18.18%) Mockito
3 2 (18.18%) Robolectric
Job Titles
1 5 (45.45%) Developer
2 3 (27.27%) Angular Developer
3 2 (18.18%) Android Developer
3 2 (18.18%) Principal Developer
3 2 (18.18%) Senior Android Developer
3 2 (18.18%) Senior Developer
4 1 (9.09%) Lead Developer
4 1 (9.09%) Team Leader
Libraries, Frameworks & Software Standards
1 9 (81.82%) Angular 2
1 9 (81.82%) AngularJS
1 9 (81.82%) CSS
1 9 (81.82%) CSS3
1 9 (81.82%) HTML
1 9 (81.82%) HTML5
1 9 (81.82%) Node.js
1 9 (81.82%) Redux
1 9 (81.82%) RxJS
1 9 (81.82%) Sass
2 8 (72.73%) NgRx
3 2 (18.18%) Android SDK
3 2 (18.18%) JSON
3 2 (18.18%) Retrofit
3 2 (18.18%) Twitter Bootstrap
Miscellaneous
1 2 (18.18%) Mobile App
Operating Systems
1 2 (18.18%) Android
Processes & Methodologies
1 7 (63.64%) Agile Software Development
1 7 (63.64%) Front End Development
2 6 (54.55%) TDD
3 4 (36.36%) Technical Leadership
4 2 (18.18%) Android Development
4 2 (18.18%) Data Architecture
4 2 (18.18%) Mobile Development
4 2 (18.18%) Performance Monitoring
4 2 (18.18%) Software Delivery
4 2 (18.18%) Waterfall
5 1 (9.09%) SOLID
Programming Languages
1 9 (81.82%) ES6
1 9 (81.82%) JavaScript
1 9 (81.82%) TypeScript
2 2 (18.18%) Kotlin
Vendors
1 6 (54.55%) Atlassian