Period
to 22 January 2021

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

Reactive Extensions for JavaScript (RxJS)
UK
6 months to
22 Jan 2021
Same period 2020 Same period 2019
Rank 635 883 1059
Rank change year-on-year +248 +176 +43
Permanent jobs citing RxJS 128 143 79
As % of all permanent jobs advertised in the UK 0.20% 0.11% 0.052%
As % of the Libraries, Frameworks & Software Standards category 0.47% 0.29% 0.13%
Number of salaries quoted 147 145 81
Median annual salary £47,500 £65,000 £55,000
Median salary % change year-on-year -26.92% +18.18% -12.00%
10th Percentile £40,000 £48,750 £33,000
90th Percentile £90,500 £85,000 £90,000
UK excluding London median annual salary £45,000 £50,000 £52,500
% change year-on-year -10.00% -4.76% +40.00%

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 27,438 49,014 60,104
As % of all permanent IT jobs advertised in the UK 42.85% 38.87% 39.58%
Number of salaries quoted 23,230 40,610 49,776
Median annual salary £55,000 £55,000 £52,500
Median salary % change year-on-year - +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%

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 22 January 2021.

Salary histogram for RxJS in the UK

RxJS
Top 12 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 22 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 +256 126 £47,500 -32.14% 20
UK excluding London +219 63 £45,000 -10.00% 9
London +163 63 £67,500 -3.57% 12
Work from Home -47 31 £42,500 -29.17% 6
North of England +98 20 £47,500 - 1
West Midlands - 20 £42,500 -
Midlands - 20 £42,500 -
South East +171 18 £45,000 -37.93% 6
Yorkshire +51 16 £47,500 -
North West +84 4 £55,000 +15.79% 1
South West - 4 £62,500 -
Wales +34 1 £50,000 -

For the 6 months to 22 January 2021, 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.

1 105 (82.03%) AngularJS
2 100 (78.13%) CSS
3 97 (75.78%) JavaScript
4 90 (70.31%) TypeScript
5 86 (67.19%) HTML
6 58 (45.31%) Agile Software Development
7 51 (39.84%) Front End Development
8 50 (39.06%) NgRx
9 49 (38.28%) TDD
10 42 (32.81%) Node.js
11 41 (32.03%) Redux
12 38 (29.69%) Git (software)
13 37 (28.91%) Sass
13 37 (28.91%) webpack
14 36 (28.13%) HTML5
15 34 (26.56%) .NET
16 33 (25.78%) Angular 2
17 32 (25.00%) npm
18 31 (24.22%) CSS3
19 28 (21.88%) C#
19 28 (21.88%) .NET Core
20 27 (21.09%) Unit Testing
21 25 (19.53%) Jasmine
22 24 (18.75%) gulp
23 22 (17.19%) Web Development
24 21 (16.41%) SQL Server
24 21 (16.41%) ASP.NET Web API
24 21 (16.41%) Protractor
24 21 (16.41%) ES6
25 20 (15.63%) Finance

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 11 (8.59%) Confluence
2 1 (0.78%) CMS
Applications
1 11 (8.59%) Photoshop
2 7 (5.47%) Adobe Creative Suite
2 7 (5.47%) InVision
2 7 (5.47%) Sketch
Cloud Services
1 32 (25.00%) npm
2 20 (15.63%) Azure
3 13 (10.16%) AWS
4 7 (5.47%) Azure Data Factory
4 7 (5.47%) GCP
4 7 (5.47%) Logic Apps
5 6 (4.69%) Cloud Computing
6 3 (2.34%) GitHub
7 2 (1.56%) Firebase
8 1 (0.78%) Google Analytics
8 1 (0.78%) Google Tag Manager
Database & Business Intelligence
1 21 (16.41%) SQL Server
2 4 (3.13%) Azure SQL Database
3 2 (1.56%) MongoDB
4 1 (0.78%) MySQL
Development Applications
1 38 (29.69%) Git (software)
2 37 (28.91%) webpack
3 25 (19.53%) Jasmine
4 24 (18.75%) gulp
5 21 (16.41%) Protractor
6 19 (14.84%) Karma Test Runner
7 17 (13.28%) Selenium
8 14 (10.94%) Cypress.io
8 14 (10.94%) JIRA
9 12 (9.38%) Grunt
10 9 (7.03%) Bitbucket
11 7 (5.47%) Moq
11 7 (5.47%) Visual Studio
12 4 (3.13%) Mocha
13 2 (1.56%) Babel
13 2 (1.56%) CircleCI
14 1 (0.78%) Android Studio
14 1 (0.78%) Jenkins
14 1 (0.78%) Subversion
14 1 (0.78%) Xcode
General
1 20 (15.63%) Finance
2 17 (13.28%) Front Office
3 7 (5.47%) Games
4 6 (4.69%) Banking
5 4 (3.13%) Automotive
5 4 (3.13%) Retail
6 3 (2.34%) Investment Banking
6 3 (2.34%) Marketing
7 2 (1.56%) Advertising
7 2 (1.56%) Law
8 1 (0.78%) Financial Institution
8 1 (0.78%) Public Sector
8 1 (0.78%) Retail Banking
Job Titles
1 102 (79.69%) Developer
2 52 (40.63%) Angular Developer
3 35 (27.34%) Front End Developer (Client-Side Developer)
4 19 (14.84%) Software Developer
5 16 (12.50%) C# Developer
5 16 (12.50%) C# Software Developer
5 16 (12.50%) React Developer
6 14 (10.94%) .NET Developer
7 13 (10.16%) Senior Developer
8 12 (9.38%) .NET Software Developer
8 12 (9.38%) C# .NET Developer
9 8 (6.25%) Full Stack Developer
9 8 (6.25%) JavaScript Developer
10 6 (4.69%) Games Developer
11 5 (3.91%) Java Developer
11 5 (3.91%) Web Developer
12 4 (3.13%) Lead Developer
12 4 (3.13%) Senior Front-End Developer
12 4 (3.13%) UI Developer
12 4 (3.13%) UI Engineer
Libraries, Frameworks & Software Standards
1 105 (82.03%) AngularJS
2 100 (78.13%) CSS
3 86 (67.19%) HTML
4 50 (39.06%) NgRx
5 42 (32.81%) Node.js
6 41 (32.03%) Redux
7 37 (28.91%) Sass
8 36 (28.13%) HTML5
9 34 (26.56%) .NET
10 33 (25.78%) Angular 2
11 31 (24.22%) CSS3
12 28 (21.88%) .NET Core
13 21 (16.41%) ASP.NET Web API
14 18 (14.06%) React
15 15 (11.72%) Vue.js
16 14 (10.94%) Twitter Bootstrap
17 13 (10.16%) Highcharts JS
17 13 (10.16%) LESS
18 12 (9.38%) Ionic Framework
19 9 (7.03%) ReactiveX
Miscellaneous
1 18 (14.06%) User Experience
2 11 (8.59%) Analytical Skills
3 7 (5.47%) Data Structures
3 7 (5.47%) Mobile App
4 5 (3.91%) Greenfield Project
5 4 (3.13%) Self-Motivation
6 3 (2.34%) Algorithms
6 3 (2.34%) Derivative
6 3 (2.34%) Equity Derivative
7 2 (1.56%) Blog
7 2 (1.56%) Hedge funds
7 2 (1.56%) Virtual Team
8 1 (0.78%) Enterprise Software
8 1 (0.78%) Foreign Exchange (FX)
Operating Systems
1 5 (3.91%) Android
1 5 (3.91%) Apple iOS
Processes & Methodologies
1 58 (45.31%) Agile Software Development
2 51 (39.84%) Front End Development
3 49 (38.28%) TDD
4 27 (21.09%) Unit Testing
5 22 (17.19%) Web Development
6 18 (14.06%) BDD
7 16 (12.50%) Continuous Integration
7 16 (12.50%) DevOps
7 16 (12.50%) Scrum
7 16 (12.50%) Software Architecture
8 15 (11.72%) CRM
9 13 (10.16%) OO
10 12 (9.38%) Adaptive Web Design
10 12 (9.38%) Web Design
11 11 (8.59%) E-Commerce
11 11 (8.59%) Fintech
12 10 (7.81%) MVC
12 10 (7.81%) Problem-Solving
13 9 (7.03%) Microservices
14 8 (6.25%) Software Engineering
Programming Languages
1 97 (75.78%) JavaScript
2 90 (70.31%) TypeScript
3 28 (21.88%) C#
4 21 (16.41%) ES6
5 14 (10.94%) Java
6 12 (9.38%) SQL
7 7 (5.47%) ES7
8 6 (4.69%) T-SQL
9 2 (1.56%) PHP
10 1 (0.78%) Dart
10 1 (0.78%) Go
Qualifications
1 1 (0.78%) Computer Science Degree
1 1 (0.78%) Degree
Quality Assurance & Compliance
1 5 (3.91%) QA
Systems Management
1 1 (0.78%) Kubernetes
Vendors
1 7 (5.47%) Adobe
2 6 (4.69%) Atlassian
3 3 (2.34%) Microsoft
4 1 (0.78%) Apple
4 1 (0.78%) Google
4 1 (0.78%) Twitter