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 16 July 2025, comparing them to the same period in the previous two years.

6 months to
16 Jul 2025
Same period 2024 Same period 2023
Rank 709 837 830
Rank change year-on-year +128 -7 +16
Permanent jobs citing RxJS 26 49 70
As % of all permanent jobs advertised in the UK 0.043% 0.048% 0.082%
As % of the Libraries, Frameworks & Software Standards category 0.26% 0.24% 0.30%
Number of salaries quoted 15 43 67
10th Percentile £39,700 - £53,250
25th Percentile £51,250 £57,500 £61,250
Median annual salary (50th Percentile) £57,500 £60,000 £75,000
Median % change year-on-year -4.17% -20.00% -4.76%
75th Percentile £88,750 £62,500 £95,000
90th Percentile £119,000 £71,250 £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 9,911 20,554 23,721
As % of all permanent jobs advertised in the UK 16.50% 19.93% 27.80%
Number of salaries quoted 6,016 15,106 16,863
10th Percentile £38,750 £36,250 £41,250
25th Percentile £51,250 £45,000 £50,000
Median annual salary (50th Percentile) £67,500 £60,000 £67,000
Median % change year-on-year +12.50% -10.45% +3.08%
75th Percentile £87,500 £80,000 £86,250
90th Percentile £112,500 £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 16 July 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 16 July 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 +130 26 £57,500 -4.17% 16
UK excluding London +133 15 £52,500 -12.50% 12
Work from Home +85 14 £52,500 -12.50% 9
London +112 11 £82,500 +13.79% 3
North of England +45 6 £55,000 -8.33% 3
North West +7 6 £55,000 -8.33% 2
South West +96 4 £78,750 +50.00% 3
Midlands +65 4 £52,500 -12.50% 3
West Midlands +65 3 £52,500 -12.50% 3
South East +73 1 - - 1
East Midlands +38 1 £52,500 -12.50%

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 2 (7.69%) Confluence
2 1 (3.85%) IIS
Cloud Services
1 7 (26.92%) SaaS
2 4 (15.38%) GitHub
3 3 (11.54%) Azure
3 3 (11.54%) Azure DevOps
3 3 (11.54%) OpenShift
4 2 (7.69%) Azure Data Factory
4 2 (7.69%) Azure Functions
4 2 (7.69%) Azure Logic Apps
4 2 (7.69%) Azure Service Bus
4 2 (7.69%) Figma
4 2 (7.69%) GitHub Actions
4 2 (7.69%) npm
4 2 (7.69%) Power Automate
4 2 (7.69%) Serverless
Database & Business Intelligence
1 3 (11.54%) SQL Server
Development Applications
1 15 (57.69%) Git
2 6 (23.08%) JIRA
2 6 (23.08%) Vite
2 6 (23.08%) webpack
3 5 (19.23%) SpecFlow
4 4 (15.38%) Cypress.io
4 4 (15.38%) rollup.js
5 3 (11.54%) Jasmine
5 3 (11.54%) Jenkins
5 3 (11.54%) Karma Test Runner
5 3 (11.54%) MSTest
5 3 (11.54%) NUnit
5 3 (11.54%) TeamCity
6 2 (7.69%) Postman
6 2 (7.69%) Selenium
6 2 (7.69%) Visual Studio
6 2 (7.69%) Visual Studio Code
General
1 14 (53.85%) Finance
2 10 (38.46%) Social Skills
3 7 (26.92%) Law
4 4 (15.38%) Banking
4 4 (15.38%) Front Office
4 4 (15.38%) Inclusion and Diversity
5 2 (7.69%) Back Office
5 2 (7.69%) Retail
Job Titles
1 11 (42.31%) Software Engineer
2 9 (34.62%) Developer
3 7 (26.92%) Front-End Engineer (Client-Side Engineer)
4 5 (19.23%) Front-End Developer (Client-Side Developer)
4 5 (19.23%) Senior
4 5 (19.23%) Senior Software Engineer
5 4 (15.38%) Associate Engineer
5 4 (15.38%) Senior Systems Engineer
5 4 (15.38%) Web Engineer
6 3 (11.54%) Angular Developer
6 3 (11.54%) C# Developer
6 3 (11.54%) Full-Stack Engineer
7 2 (7.69%) .NET Developer
7 2 (7.69%) C# .NET Developer
7 2 (7.69%) Energy Trading Developer
7 2 (7.69%) HTML CSS Developer
7 2 (7.69%) HTML Developer
7 2 (7.69%) JavaScript Developer
8 1 (3.85%) Lead
8 1 (3.85%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 21 (80.77%) AngularJS
2 20 (76.92%) CSS
2 20 (76.92%) HTML
3 13 (50.00%) .NET
4 11 (42.31%) CSS3
5 10 (38.46%) NgRx
6 9 (34.62%) HTML5
7 7 (26.92%) .NET Framework
8 6 (23.08%) JSON
8 6 (23.08%) Playwright
8 6 (23.08%) REST
8 6 (23.08%) Semantic HTML
9 5 (19.23%) Entity Framework
9 5 (19.23%) React
9 5 (19.23%) Sass
10 4 (15.38%) Jest
10 4 (15.38%) Next.js
11 3 (11.54%) .NET Core
11 3 (11.54%) Electron
11 3 (11.54%) LESS
Miscellaneous
1 4 (15.38%) Wiki
2 3 (11.54%) Client/Server
2 3 (11.54%) Cloud Native
2 3 (11.54%) Credit Derivative
2 3 (11.54%) Derivative
2 3 (11.54%) Enterprise Software
2 3 (11.54%) Equities
2 3 (11.54%) Fixed Income
2 3 (11.54%) Foreign Exchange (FX)
2 3 (11.54%) Virtual Team
3 2 (7.69%) Team-Oriented Environment
4 1 (3.85%) Educational Technology
Processes & Methodologies
1 14 (53.85%) Software Engineering
2 12 (46.15%) Test Automation
3 11 (42.31%) Agile
4 10 (38.46%) DevOps
4 10 (38.46%) Front End Development
5 8 (30.77%) Web Development
6 7 (26.92%) Code Quality
6 7 (26.92%) Full-Stack Development
6 7 (26.92%) Requirements Analysis
6 7 (26.92%) Responsive Web Design
7 6 (23.08%) Problem-Solving
7 6 (23.08%) Web Design
8 5 (19.23%) CI/CD
8 5 (19.23%) Scrum
9 4 (15.38%) Artificial Intelligence
9 4 (15.38%) Clean Code
9 4 (15.38%) Information Security
9 4 (15.38%) Prototyping
9 4 (15.38%) Stakeholder Management
9 4 (15.38%) Validation
Programming Languages
1 20 (76.92%) TypeScript
2 19 (73.08%) JavaScript
3 11 (42.31%) C#
4 4 (15.38%) SQL
5 1 (3.85%) T-SQL
5 1 (3.85%) VB
5 1 (3.85%) VB.NET
5 1 (3.85%) VB6
Qualifications
1 6 (23.08%) Degree
2 3 (11.54%) Computer Science Degree
Quality Assurance & Compliance
1 8 (30.77%) Accessibility
2 4 (15.38%) WCAG
3 1 (3.85%) QA
System Software
1 6 (23.08%) Docker
Vendors
1 5 (19.23%) Microsoft
2 3 (11.54%) Telerik
3 2 (7.69%) Sybase