Period
to 5 April 2020

The following table provides summary statistics for permanent job vacancies with a requirement for RxJS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited RxJS over the 6 months to 5 April 2020 with a comparison to the same period in the previous 2 years.

Reactive Extensions for JavaScript (RxJS)
UK
6 months to
5 Apr 2020
Same period 2019 Same period 2018
Rank 879 978 1063
Rank change year-on-year +99 +85 +58
Permanent jobs citing RxJS 113 145 143
As % of all permanent jobs advertised in the UK 0.097% 0.097% 0.081%
As % of the Libraries, Frameworks & Software Standards category 0.25% 0.25% 0.20%
Number of salaries quoted 112 153 143
Median annual salary £70,000 £67,500 £60,000
Median salary % change year-on-year +3.70% +12.50% +41.18%
10th Percentile £50,000 £40,000 £32,750
90th Percentile £93,625 £95,000 £89,500
UK excluding London median annual salary £50,000 £52,500 £37,500
% change year-on-year -4.76% +40.00% -16.67%

RxJS 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%

RxJS
Job Vacancy Trend

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

Job vacancy trend for RxJS in the UK

RxJS
Salary Trend

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

Salary trend for RxJS in the UK

RxJS
Salary Histogram

Salary distribution for jobs citing RxJS over the 6 months to 5 April 2020.

Salary histogram for RxJS in the UK

RxJS
Top 11 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing RxJS 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 +67 92 £70,000 +3.70% 23
London +73 73 £75,000 - 20
UK excluding London +114 40 £50,000 -4.76% 3
Work from Home +18 19 £75,000 +42.86% 2
Wales +9 17 £50,000 +38.89%
North of England +77 7 £50,000 -4.76% 1
East of England +52 7 £70,000 +55.56%
South East +43 5 £80,000 +45.45% 2
North West +55 4 £50,000 -4.76% 1
Scotland +33 4 £42,500 -
Yorkshire - 3 - -

For the 6 months to 5 April 2020, IT jobs citing RxJS 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 RxJS.

1 95 (84.07%) AngularJS
2 88 (77.88%) TypeScript
3 87 (76.99%) JavaScript
4 71 (62.83%) HTML
5 67 (59.29%) CSS
6 62 (54.87%) Front End Development
7 58 (51.33%) NgRx
8 50 (44.25%) User Experience
9 48 (42.48%) Agile Software Development
10 45 (39.82%) Sass
10 45 (39.82%) Redux
11 39 (34.51%) Angular 2
12 38 (33.63%) Node.js
13 34 (30.09%) Functional Programming
14 29 (25.66%) HTML5
15 24 (21.24%) jQuery
15 24 (21.24%) webpack
16 23 (20.35%) React
17 21 (18.58%) npm
18 20 (17.70%) Git (software)
18 20 (17.70%) TDD
19 19 (16.81%) .NET
19 19 (16.81%) CSS3
20 16 (14.16%) RESTful
20 16 (14.16%) Twitter Bootstrap
21 15 (13.27%) Continuous Integration
21 15 (13.27%) C#
22 14 (12.39%) gulp
22 14 (12.39%) ES6
23 13 (11.50%) Java

RxJS
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 7 (6.19%) IIS
1 7 (6.19%) JBoss
2 1 (0.88%) CMS
2 1 (0.88%) Liferay
2 1 (0.88%) nginx
2 1 (0.88%) Sitecore CMS
Business Applications
1 8 (7.08%) Shopify
Cloud Services
1 21 (18.58%) npm
2 12 (10.62%) Azure
3 3 (2.65%) AWS
4 2 (1.77%) SaaS
5 1 (0.88%) GCP
5 1 (0.88%) GitHub
5 1 (0.88%) OpenShift
Communications & Networking
1 1 (0.88%) HTTP
1 1 (0.88%) Internet
Database & Business Intelligence
1 12 (10.62%) SQL Server
2 10 (8.85%) NoSQL
3 7 (6.19%) Cosmos DB
3 7 (6.19%) SQL Server Integration Services
4 3 (2.65%) Relational Database
5 1 (0.88%) MongoDB
Development Applications
1 24 (21.24%) webpack
2 20 (17.70%) Git (software)
3 14 (12.39%) gulp
4 10 (8.85%) Cypress.io
4 10 (8.85%) Jasmine
4 10 (8.85%) MSTest
4 10 (8.85%) NUnit
4 10 (8.85%) Selenium
5 9 (7.96%) Protractor
6 7 (6.19%) Bitbucket
7 6 (5.31%) Karma Test Runner
8 5 (4.42%) Jenkins
8 5 (4.42%) Subversion
9 4 (3.54%) jspm
10 2 (1.77%) Cucumber
10 2 (1.77%) git-flow
10 2 (1.77%) JIRA
10 2 (1.77%) Mocha
11 1 (0.88%) Babel
11 1 (0.88%) ESLint
General
1 12 (10.62%) Finance
2 6 (5.31%) Banking
3 4 (3.54%) Retail
4 2 (1.77%) Front Office
4 2 (1.77%) Marketing
5 1 (0.88%) Games
5 1 (0.88%) Investment Banking
5 1 (0.88%) Legal
5 1 (0.88%) Telecoms
Job Titles
1 92 (81.42%) Developer
2 68 (60.18%) Angular Developer
3 48 (42.48%) Front End Developer (Client-Side Developer)
4 36 (31.86%) Senior Developer
5 27 (23.89%) Senior Front-End Developer
6 10 (8.85%) Full Stack Developer
6 10 (8.85%) Web Engineer
7 7 (6.19%) .NET Development Manager
7 7 (6.19%) Development Manager
7 7 (6.19%) Lead Developer
7 7 (6.19%) React Developer
7 7 (6.19%) Software Development Manager
7 7 (6.19%) Software Manager
8 5 (4.42%) .NET Developer
8 5 (4.42%) Web Developer
9 4 (3.54%) JavaScript Developer
9 4 (3.54%) Principal Developer
9 4 (3.54%) Python Developer
9 4 (3.54%) Senior Full Stack Developer
9 4 (3.54%) Software Engineer
Libraries, Frameworks & Software Standards
1 95 (84.07%) AngularJS
2 71 (62.83%) HTML
3 67 (59.29%) CSS
4 58 (51.33%) NgRx
5 45 (39.82%) Redux
5 45 (39.82%) Sass
6 39 (34.51%) Angular 2
7 38 (33.63%) Node.js
8 29 (25.66%) HTML5
9 24 (21.24%) jQuery
10 23 (20.35%) React
11 19 (16.81%) .NET
11 19 (16.81%) CSS3
12 16 (14.16%) RESTful
12 16 (14.16%) Twitter Bootstrap
13 12 (10.62%) Jest
13 12 (10.62%) ReactiveX
14 10 (8.85%) SignalR
15 9 (7.96%) JSON
16 7 (6.19%) .NET Framework
Miscellaneous
1 50 (44.25%) User Experience
2 12 (10.62%) Greenfield Project
3 10 (8.85%) Mobile App
4 6 (5.31%) Analytical Skills
5 2 (1.77%) Digital Media
5 2 (1.77%) Self-Motivation
6 1 (0.88%) Algorithms
6 1 (0.88%) BBC
6 1 (0.88%) Social Media
6 1 (0.88%) Virtual Team
Operating Systems
1 10 (8.85%) Windows
2 7 (6.19%) Linux
3 2 (1.77%) Android
3 2 (1.77%) Apple iOS
Processes & Methodologies
1 62 (54.87%) Front End Development
2 48 (42.48%) Agile Software Development
3 34 (30.09%) Functional Programming
4 20 (17.70%) TDD
5 15 (13.27%) Continuous Integration
6 13 (11.50%) Scrum
6 13 (11.50%) Software Engineering
7 12 (10.62%) Progressive Web App
8 11 (9.73%) SOLID
9 10 (8.85%) Analytics
9 10 (8.85%) CAP Theorem
9 10 (8.85%) Mentoring
10 9 (7.96%) Change Management
10 9 (7.96%) Web Development
11 8 (7.08%) Coaching
11 8 (7.08%) E-Commerce
11 8 (7.08%) Infrastructure as Code
11 8 (7.08%) Process Improvement
11 8 (7.08%) Web Analytics
12 7 (6.19%) Development Roadmap
Programming Languages
1 88 (77.88%) TypeScript
2 87 (76.99%) JavaScript
3 15 (13.27%) C#
4 14 (12.39%) ES6
5 13 (11.50%) Java
6 7 (6.19%) Shell Script
6 7 (6.19%) T-SQL
7 4 (3.54%) Python
8 3 (2.65%) Java 8
9 2 (1.77%) ES7
10 1 (0.88%) Ruby
10 1 (0.88%) SQL
Qualifications
1 1 (0.88%) Degree
Quality Assurance & Compliance
1 10 (8.85%) QA
System Software
1 8 (7.08%) Docker
Systems Management
1 8 (7.08%) Terraform
Vendors
1 7 (6.19%) Atlassian
1 7 (6.19%) Microsoft
2 1 (0.88%) Google
2 1 (0.88%) Sitecore