Reactive Extensions for JavaScript (RxJS)
UK

The table below provides summary statistics for permanent job vacancies requiring RxJS skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited RxJS over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 652 840 908
Rank change year-on-year +188 +68 -75
Permanent jobs citing RxJS 40 56 81
As % of all permanent jobs advertised in the UK 0.077% 0.057% 0.078%
As % of the Libraries, Frameworks & Software Standards category 0.47% 0.27% 0.26%
Number of salaries quoted 35 53 72
10th Percentile £32,000 - £58,750
25th Percentile £33,575 £57,500 £65,000
Median annual salary (50th Percentile) £52,500 £60,000 £80,000
Median % change year-on-year -12.50% -25.00% +23.08%
75th Percentile £73,750 £75,000 £110,000
90th Percentile £88,750 £80,000 £120,000
UK excluding London median annual salary £52,500 £60,000 £62,500
% change year-on-year -12.50% -4.00% +4.17%

All Software Libraries and Frameworks
UK

RxJS falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring technical specification, industry standards, software libraries and framework skills.

Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 8,460 21,099 31,393
As % of all permanent jobs advertised in the UK 16.26% 21.42% 30.21%
Number of salaries quoted 6,443 15,769 19,367
10th Percentile £38,750 £36,250 £41,117
25th Percentile £51,000 £45,000 £50,000
Median annual salary (50th Percentile) £65,000 £60,000 £67,500
Median % change year-on-year +8.33% -11.11% +8.00%
75th Percentile £87,500 £80,000 £87,500
90th Percentile £111,250 £100,000 £106,250
UK excluding London median annual salary £60,000 £55,000 £57,500
% change year-on-year +9.09% -4.35% +4.55%

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 1 May 2025.

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 1 May 2025. 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
Jobs
England +159 38 £52,500 -12.50% 33
UK excluding London +188 20 £52,500 -12.50% 20
Work from Home +176 19 £52,500 -12.50% 24
London +111 16 £34,000 -54.67% 21
Midlands +78 9 £52,500 -12.50% 1
West Midlands +51 8 £52,500 -12.50%
North of England +72 6 £55,000 -8.33% 9
North West +24 6 £55,000 -8.33% 8
South West +109 4 £77,500 -
South East +106 1 - - 9
East Midlands +45 1 £52,500 -12.50% 1

RxJS
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 1 (2.50%) IIS
Cloud Services
1 9 (22.50%) SaaS
2 8 (20.00%) Azure
2 8 (20.00%) Azure DevOps
3 5 (12.50%) Serverless
4 4 (10.00%) Azure Data Factory
4 4 (10.00%) Azure Functions
4 4 (10.00%) Azure Logic Apps
4 4 (10.00%) Azure Service Bus
4 4 (10.00%) Figma
4 4 (10.00%) GitHub
4 4 (10.00%) GitHub Actions
4 4 (10.00%) Power Automate
5 3 (7.50%) OpenShift
6 2 (5.00%) npm
7 1 (2.50%) Amazon Cognito
7 1 (2.50%) AWS
7 1 (2.50%) AWS Lambda
7 1 (2.50%) CloudFront
Database & Business Intelligence
1 1 (2.50%) SQL Server
Development Applications
1 15 (37.50%) Git
2 12 (30.00%) Jasmine
2 12 (30.00%) Karma Test Runner
3 8 (20.00%) JIRA
4 6 (15.00%) webpack
5 4 (10.00%) Grunt
5 4 (10.00%) gulp
5 4 (10.00%) Postman
5 4 (10.00%) Selenium
5 4 (10.00%) Visual Studio
5 4 (10.00%) Visual Studio Code
6 3 (7.50%) Jenkins
6 3 (7.50%) MSTest
6 3 (7.50%) NUnit
6 3 (7.50%) SpecFlow
6 3 (7.50%) TeamCity
7 2 (5.00%) Maven
7 2 (5.00%) Vite
General
1 8 (20.00%) Retail
1 8 (20.00%) Social Skills
2 7 (17.50%) Finance
3 4 (10.00%) Front Office
3 4 (10.00%) Games
3 4 (10.00%) iGaming
4 3 (7.50%) Law
5 1 (2.50%) Financial Institution
Job Titles
1 23 (57.50%) Developer
2 13 (32.50%) Front-End Developer (Client-Side Developer)
3 11 (27.50%) Front-End Engineer (Client-Side Engineer)
4 7 (17.50%) Angular Developer
4 7 (17.50%) Full-Stack Engineer
5 6 (15.00%) Software Engineer
6 4 (10.00%) Games Developer
6 4 (10.00%) Lead
6 4 (10.00%) Senior
7 3 (7.50%) Senior Software Engineer
8 2 (5.00%) HTML CSS Developer
8 2 (5.00%) HTML Developer
8 2 (5.00%) JavaScript Developer
8 2 (5.00%) Lead Developer
8 2 (5.00%) UI Developer
8 2 (5.00%) UI/UX Developer
8 2 (5.00%) UX Developer
9 1 (2.50%) C# Developer
9 1 (2.50%) Lead Software Engineer
9 1 (2.50%) Team Leader
Libraries, Frameworks & Software Standards
1 34 (85.00%) AngularJS
2 27 (67.50%) CSS
2 27 (67.50%) HTML
3 23 (57.50%) NgRx
4 18 (45.00%) .NET
4 18 (45.00%) HTML5
5 15 (37.50%) Node.js
6 14 (35.00%) CSS3
7 13 (32.50%) Sass
8 12 (30.00%) JSON
9 11 (27.50%) .NET Framework
10 9 (22.50%) XML
11 7 (17.50%) .NET Core
11 7 (17.50%) Entity Framework
11 7 (17.50%) Kendo UI
12 6 (15.00%) Bootstrap
13 5 (12.50%) REST
13 5 (12.50%) RESTful
14 4 (10.00%) ASP.NET Web API
14 4 (10.00%) WebGL
Miscellaneous
1 9 (22.50%) Team-Oriented Environment
2 5 (12.50%) Client/Server
2 5 (12.50%) Virtual Team
3 4 (10.00%) Data Structures
4 3 (7.50%) Cloud Native
4 3 (7.50%) Credit Derivative
4 3 (7.50%) Derivative
4 3 (7.50%) Enterprise Software
4 3 (7.50%) Equities
4 3 (7.50%) Fixed Income
4 3 (7.50%) Foreign Exchange (FX)
5 2 (5.00%) Self-Motivation
6 1 (2.50%) Educational Technology
Processes & Methodologies
1 15 (37.50%) Front End Development
1 15 (37.50%) Web Development
2 13 (32.50%) Software Engineering
3 12 (30.00%) User Experience
4 11 (27.50%) DevOps
5 10 (25.00%) Code Quality
5 10 (25.00%) Responsive Web Design
5 10 (25.00%) Test Automation
5 10 (25.00%) UX Design
6 9 (22.50%) Agile
6 9 (22.50%) Collaborative Working
6 9 (22.50%) E-Commerce
6 9 (22.50%) Problem-Solving
6 9 (22.50%) Web Design
7 8 (20.00%) OOP
8 7 (17.50%) API Development
8 7 (17.50%) CI/CD
8 7 (17.50%) Full-Stack Development
8 7 (17.50%) Performance Tuning
8 7 (17.50%) Scrum
Programming Languages
1 28 (70.00%) JavaScript
2 25 (62.50%) TypeScript
3 16 (40.00%) C#
4 9 (22.50%) SQL
5 1 (2.50%) T-SQL
5 1 (2.50%) VB
5 1 (2.50%) VB.NET
5 1 (2.50%) VB6
Qualifications
1 6 (15.00%) Degree
2 3 (7.50%) Computer Science Degree
Quality Assurance & Compliance
1 4 (10.00%) Accessibility
2 1 (2.50%) QA
System Software
1 2 (5.00%) Docker
Vendors
1 7 (17.50%) Telerik
2 5 (12.50%) Microsoft