Job Vacancy Trend Salary Trend Salary Histogram Job Locations Skill Sets
Period
to 6 August 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 6 August 2020 with a comparison to the same period in the previous 2 years.

Reactive Extensions for JavaScript (RxJS)
UK
6 months to
6 Aug 2020		 Same period 2019 Same period 2018
Rank 708 902 1083
Rank change year-on-year +194 +181 +81
Permanent jobs citing RxJS 63 190 107
As % of all permanent jobs advertised in the UK 0.096% 0.13% 0.062%
As % of the Libraries, Frameworks & Software Standards category 0.23% 0.35% 0.16%
Number of salaries quoted 50 197 109
Median annual salary £75,000 £72,500 £55,000
Median salary % change year-on-year +3.45% +31.82% -4.35%
10th Percentile £39,750 £42,500 £33,500
90th Percentile £93,750 £105,000 £78,000
UK excluding London median annual salary £55,000 £45,000 £45,000
% change year-on-year +22.22% - +80.00%

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 26,888 53,906 68,965
As % of all permanent IT jobs advertised in the UK 40.98% 37.69% 40.26%
Number of salaries quoted 22,247 44,454 57,323
Median annual salary £55,000 £52,500 £50,000
Median salary % change year-on-year +4.76% +5.00% +5.26%
10th Percentile £33,750 £31,250 £31,250
90th Percentile £92,500 £86,250 £81,250
UK excluding London median annual salary £48,500 £45,000 £45,000
% change year-on-year +7.78% - +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 6 August 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 6 August 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 +201 62 £75,000 - 14
London +102 41 £80,000 +6.67% 4
UK excluding London +263 22 £55,000 +22.22% 10
North of England +177 14 £55,000 +37.50% 7
North West +121 9 £55,000 +37.50% 3
South East +188 6 £60,000 -11.11% 3
Work from Home +60 6 £77,500 +7.64% 1
Yorkshire - 5 £40,000 - 4
Scotland +99 1 - -
Midlands - 1 £45,000 -
West Midlands - 1 £45,000 -

For the 6 months to 6 August 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 48 (76.19%) JavaScript
2 41 (65.08%) AngularJS
3 36 (57.14%) Node.js
3 36 (57.14%) CSS
4 34 (53.97%) Agile Software Development
5 33 (52.38%) TypeScript
5 33 (52.38%) Redux
6 29 (46.03%) HTML
6 29 (46.03%) .NET
7 26 (41.27%) Front End Development
8 25 (39.68%) npm
9 24 (38.10%) Azure
10 23 (36.51%) Cypress.io
11 22 (34.92%) .NET Core
12 21 (33.33%) Web Development
13 19 (30.16%) Finance
14 18 (28.57%) C#
15 17 (26.98%) NgRx
16 16 (25.40%) RESTful
17 15 (23.81%) Front Office
18 14 (22.22%) User Experience
19 13 (20.63%) Web Services
19 13 (20.63%) Git (software)
19 13 (20.63%) Sass
19 13 (20.63%) Jasmine
20 12 (19.05%) Continuous Integration
20 12 (19.05%) React
20 12 (19.05%) webpack
21 11 (17.46%) Test Automation
21 11 (17.46%) JSON

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 2 (3.17%) Elasticsearch
2 1 (1.59%) CMS
2 1 (1.59%) Confluence
2 1 (1.59%) Liferay
2 1 (1.59%) nginx
2 1 (1.59%) Sitecore CMS
Applications
1 1 (1.59%) Photoshop
Business Applications
1 2 (3.17%) Shopify
Cloud Services
1 25 (39.68%) npm
2 24 (38.10%) Azure
3 6 (9.52%) GCP
4 5 (7.94%) AWS
4 5 (7.94%) Firebase
4 5 (7.94%) SaaS
5 1 (1.59%) Amazon SQS
5 1 (1.59%) Cloud Computing
5 1 (1.59%) GitHub
5 1 (1.59%) OpenShift
5 1 (1.59%) Serverless
Communications & Networking
1 1 (1.59%) HTTP
1 1 (1.59%) Internet
Database & Business Intelligence
1 9 (14.29%) NoSQL
2 5 (7.94%) Blockchain
2 5 (7.94%) MongoDB
3 3 (4.76%) Cosmos DB
4 2 (3.17%) SQL Server
5 1 (1.59%) Redis
Development Applications
1 23 (36.51%) Cypress.io
2 13 (20.63%) Git (software)
2 13 (20.63%) Jasmine
3 12 (19.05%) webpack
4 9 (14.29%) Protractor
5 8 (12.70%) gulp
6 5 (7.94%) Grunt
6 5 (7.94%) NUnit
7 3 (4.76%) Bitbucket
7 3 (4.76%) Karma Test Runner
7 3 (4.76%) MSTest
8 2 (3.17%) NSubstitute
8 2 (3.17%) Octopus Deploy
8 2 (3.17%) Team Foundation Server
8 2 (3.17%) TeamCity
8 2 (3.17%) Visual Studio Team System
9 1 (1.59%) Babel
9 1 (1.59%) JIRA
9 1 (1.59%) Mocha
9 1 (1.59%) Selenium
General
1 19 (30.16%) Finance
2 15 (23.81%) Front Office
3 5 (7.94%) Games
4 4 (6.35%) Banking
5 2 (3.17%) Investment Banking
5 2 (3.17%) Marketing
6 1 (1.59%) Law
6 1 (1.59%) Legal
6 1 (1.59%) Retail Banking
6 1 (1.59%) Telecoms
Job Titles
1 56 (88.89%) Developer
2 24 (38.10%) Angular Developer
2 24 (38.10%) Front End Developer (Client-Side Developer)
3 21 (33.33%) React Developer
4 15 (23.81%) Lead Developer
5 8 (12.70%) Full Stack Developer
5 8 (12.70%) Senior Developer
6 7 (11.11%) C# Developer
6 7 (11.11%) Web Developer
7 6 (9.52%) JavaScript Developer
8 5 (7.94%) .NET Developer
8 5 (7.94%) .NET Web Developer
8 5 (7.94%) Node.js Developer
8 5 (7.94%) UI Developer
9 4 (6.35%) Blockchain Developer
9 4 (6.35%) Games Developer
10 3 (4.76%) Principal Developer
10 3 (4.76%) Senior .NET Developer
10 3 (4.76%) Senior .NET Web Developer
10 3 (4.76%) Senior Web Developer
Libraries, Frameworks & Software Standards
1 41 (65.08%) AngularJS
2 36 (57.14%) CSS
2 36 (57.14%) Node.js
3 33 (52.38%) Redux
4 29 (46.03%) .NET
4 29 (46.03%) HTML
5 22 (34.92%) .NET Core
6 17 (26.98%) NgRx
7 16 (25.40%) RESTful
8 13 (20.63%) Sass
8 13 (20.63%) Web Services
9 12 (19.05%) React
10 11 (17.46%) JSON
11 10 (15.87%) Angular 2
12 9 (14.29%) HTML5
12 9 (14.29%) Twitter Bootstrap
13 7 (11.11%) ASP.NET Web API
13 7 (11.11%) CSS3
14 5 (7.94%) ReactiveX
14 5 (7.94%) SignalR
Miscellaneous
1 14 (22.22%) User Experience
2 5 (7.94%) Mobile App
3 4 (6.35%) Greenfield Project
3 4 (6.35%) Renewable Energy
4 3 (4.76%) Data Structures
5 2 (3.17%) Analytical Skills
5 2 (3.17%) Social Media
5 2 (3.17%) Virtual Team
6 1 (1.59%) Social Gaming
Operating Systems
1 1 (1.59%) Windows
Processes & Methodologies
1 34 (53.97%) Agile Software Development
2 26 (41.27%) Front End Development
3 21 (33.33%) Web Development
4 12 (19.05%) Continuous Integration
5 11 (17.46%) Test Automation
6 10 (15.87%) Dependency Injection
6 10 (15.87%) Separation of Concerns
7 9 (14.29%) TDD
8 8 (12.70%) Unit Testing
9 7 (11.11%) DevOps
10 6 (9.52%) Fintech
10 6 (9.52%) Problem-Solving
10 6 (9.52%) Scrum
11 5 (7.94%) Analytics
11 5 (7.94%) BDD
11 5 (7.94%) OO
11 5 (7.94%) SOA
11 5 (7.94%) Telematics
12 4 (6.35%) OOP
12 4 (6.35%) SOLID
Programming Languages
1 48 (76.19%) JavaScript
2 33 (52.38%) TypeScript
3 18 (28.57%) C#
4 8 (12.70%) ES6
5 7 (11.11%) Java
6 4 (6.35%) Rust
7 1 (1.59%) Kotlin
7 1 (1.59%) Python
7 1 (1.59%) SQL
Qualifications
1 1 (1.59%) Degree
Quality Assurance & Compliance
1 2 (3.17%) PCI DSS
2 1 (1.59%) QA
System Software
1 5 (7.94%) Docker
Systems Management
1 3 (4.76%) Terraform
2 1 (1.59%) Ansible
Vendors
1 5 (7.94%) Google
2 3 (4.76%) Microsoft
3 2 (3.17%) Atlassian
4 1 (1.59%) Sitecore