Period
to 5 April 2020

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 5 April 2020 with a comparison to the same period in the previous 2 years.

ReactiveX
UK
6 months to
5 Apr 2020
Same period 2019 Same period 2018
Rank 976 1110 1195
Rank change year-on-year +134 +85 -5
Permanent jobs citing ReactiveX 16 13 11
As % of all permanent jobs advertised in the UK 0.014% 0.009% 0.006%
As % of the Libraries, Frameworks & Software Standards category 0.035% 0.022% 0.015%
Number of salaries quoted 11 13 11
Median annual salary £77,500 £100,000 £80,000
Median salary % change year-on-year -22.50% +25.00% +14.29%
10th Percentile £67,500 £25,000 £50,000
90th Percentile £91,250 £105,000 £95,000
UK excluding London median annual salary £87,500 £25,000 -
% change year-on-year +250.00% - -

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 45,807 58,621 72,133
As % of all permanent IT jobs advertised in the UK 39.31% 39.30% 40.70%
Number of salaries quoted 37,671 48,063 61,039
Median annual salary £55,000 £52,500 £50,000
Median salary % change year-on-year +4.76% +5.00% +5.26%
10th Percentile £32,500 £31,250 £30,500
90th Percentile £90,000 £85,000 £78,750
UK excluding London median annual salary £47,500 £45,000 £43,500
% change year-on-year +5.56% +3.45% +2.35%

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 5 April 2020.

Salary histogram for ReactiveX in the UK

ReactiveX
Top 5 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 5 April 2020. 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 +118 16 £77,500 -22.50% 5
London +98 12 £76,250 -23.75% 3
UK excluding London +124 4 £87,500 +250.00% 2
South East - 4 £87,500 - 1
Work from Home - 1 £87,500 - 1

For the 6 months to 5 April 2020, 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 12 (75.00%) CSS
1 12 (75.00%) HTML
1 12 (75.00%) JavaScript
1 12 (75.00%) HTML5
1 12 (75.00%) Node.js
1 12 (75.00%) CSS3
1 12 (75.00%) Sass
1 12 (75.00%) AngularJS
1 12 (75.00%) TypeScript
1 12 (75.00%) RxJS
1 12 (75.00%) NgRx
2 11 (68.75%) Angular 2
2 11 (68.75%) Agile Software Development
3 10 (62.50%) Redux
3 10 (62.50%) Front End Development
3 10 (62.50%) ES6
3 10 (62.50%) webpack
4 8 (50.00%) TDD
4 8 (50.00%) Git (software)
5 7 (43.75%) Bitbucket
5 7 (43.75%) Atlassian
6 5 (31.25%) AWS
6 5 (31.25%) Twitter Bootstrap
6 5 (31.25%) Technical Leadership
7 4 (25.00%) Java
8 3 (18.75%) SQL
8 3 (18.75%) Banking
8 3 (18.75%) Spring
8 3 (18.75%) Hadoop
8 3 (18.75%) RESTful

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:

Application Platforms
1 3 (18.75%) Apache Spark
Cloud Services
1 5 (31.25%) AWS
Database & Business Intelligence
1 3 (18.75%) Big Data
1 3 (18.75%) Hadoop
1 3 (18.75%) NoSQL
2 1 (6.25%) SQLite
Development Applications
1 10 (62.50%) webpack
2 8 (50.00%) Git (software)
3 7 (43.75%) Bitbucket
4 1 (6.25%) Android Studio
4 1 (6.25%) Mockito
4 1 (6.25%) Robolectric
General
1 3 (18.75%) Banking
Job Titles
1 13 (81.25%) Developer
2 12 (75.00%) Angular Developer
3 4 (25.00%) Principal Developer
4 3 (18.75%) Front End Developer (Client-Side Developer)
4 3 (18.75%) Lead Developer
4 3 (18.75%) Site Engineer
4 3 (18.75%) Site Reliability Engineer
5 1 (6.25%) Android Developer
5 1 (6.25%) AWS Developer
5 1 (6.25%) React Developer
5 1 (6.25%) Senior Android Developer
5 1 (6.25%) Senior Developer
Libraries, Frameworks & Software Standards
1 12 (75.00%) AngularJS
1 12 (75.00%) CSS
1 12 (75.00%) CSS3
1 12 (75.00%) HTML
1 12 (75.00%) HTML5
1 12 (75.00%) NgRx
1 12 (75.00%) Node.js
1 12 (75.00%) RxJS
1 12 (75.00%) Sass
2 11 (68.75%) Angular 2
3 10 (62.50%) Redux
4 5 (31.25%) Twitter Bootstrap
5 3 (18.75%) Kafka
5 3 (18.75%) RESTful
5 3 (18.75%) Spring
5 3 (18.75%) Spring Boot
6 1 (6.25%) Android SDK
6 1 (6.25%) JSON
6 1 (6.25%) Retrofit
Miscellaneous
1 3 (18.75%) Mobile App
Operating Systems
1 1 (6.25%) Android
Processes & Methodologies
1 11 (68.75%) Agile Software Development
2 10 (62.50%) Front End Development
3 8 (50.00%) TDD
4 5 (31.25%) Technical Leadership
5 3 (18.75%) Fintech
5 3 (18.75%) Microservices
5 3 (18.75%) Site Reliability Engineering
6 2 (12.50%) Waterfall
7 1 (6.25%) Android Development
7 1 (6.25%) Continuous Integration
7 1 (6.25%) Data Architecture
7 1 (6.25%) Line Management
7 1 (6.25%) Mobile Development
7 1 (6.25%) Performance Monitoring
7 1 (6.25%) SDLC
7 1 (6.25%) Software Delivery
7 1 (6.25%) SOLID
Programming Languages
1 12 (75.00%) JavaScript
1 12 (75.00%) TypeScript
2 10 (62.50%) ES6
3 4 (25.00%) Java
4 3 (18.75%) Java 8
4 3 (18.75%) SQL
5 1 (6.25%) Kotlin
System Software
1 3 (18.75%) Docker
Systems Management
1 3 (18.75%) Kubernetes
Vendors
1 7 (43.75%) Atlassian