Period
to 17 June 2019

The following table provides summary statistics for permanent job vacancies with a requirement for ReactiveX skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ReactiveX over the 6 months to 17 June 2019 with a comparison to the same period in the previous 2 years.

ReactiveX
UK
6 months to
17 Jun 2019
Same period 2018 Same period 2017
Rank 1095 1201 1170
Rank change year-on-year +106 -31 -
Permanent jobs citing ReactiveX 3 3 2
As % of all permanent IT jobs advertised in the UK 0.002% 0.002% 0.001%
As % of the Libraries, Frameworks & Software Standards category 0.005% 0.004% 0.003%
Number of salaries quoted 3 3 2
UK median annual salary £62,500 £50,000 £70,000
Median salary % change year-on-year +25.00% -28.57% -
10th Percentile £30,750 £48,000 £65,000
90th Percentile £98,250 £74,500 £75,000
UK excluding London median annual salary £25,000 - -

ReactiveX 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 54,783 69,661 69,893
As % of all permanent IT jobs advertised in the UK 38.22% 40.54% 40.63%
Number of salaries quoted 45,001 58,311 59,173
UK median annual salary £52,500 £50,000 £47,500
Median salary % change year-on-year +5.00% +5.26% -
10th Percentile £31,250 £31,250 £28,750
90th Percentile £85,000 £80,000 £76,250
UK excluding London median annual salary £45,000 £45,000 £42,000
% change year-on-year - +7.14% +2.44%

ReactiveX
Job Vacancy Trend

Job postings citing ReactiveX as a percentage of all IT jobs advertised.

Job vacancy trend for ReactiveX in the UK

ReactiveX
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ReactiveX.

Salary trend for ReactiveX in the UK

ReactiveX
Salary Histogram

The salary distribution of IT jobs citing ReactiveX over the 6 months to 17 June 2019.

Salary histogram for ReactiveX in the UK

ReactiveX
Top 5 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ReactiveX within the UK over the 6 months to 17 June 2019. 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 +87 3 £62,500 +25.00%
London +79 2 £81,250 +62.50%
North West - 1 £25,000 -
UK excluding London - 1 £25,000 -
North of England - 1 £25,000 -

For the 6 months to 17 June 2019, IT jobs citing ReactiveX 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 ReactiveX.

1 2 (66.67%) JavaScript
1 2 (66.67%) Docker
1 2 (66.67%) Agile Software Development
1 2 (66.67%) TDD
1 2 (66.67%) React
2 1 (33.33%) Mobile First
2 1 (33.33%) React Native
2 1 (33.33%) Kotlin
2 1 (33.33%) Front End Development
2 1 (33.33%) Protractor
2 1 (33.33%) Cryptocurrency
2 1 (33.33%) Blockchain
2 1 (33.33%) Chai
2 1 (33.33%) Virtual Machines
2 1 (33.33%) Ethereum
2 1 (33.33%) Numerate Degree
2 1 (33.33%) Computer Science Degree
2 1 (33.33%) Solidity
2 1 (33.33%) npm
2 1 (33.33%) Yarn
2 1 (33.33%) Banking
2 1 (33.33%) Cryptography
2 1 (33.33%) Spring
2 1 (33.33%) Software Engineering
2 1 (33.33%) Derivative
2 1 (33.33%) Degree
2 1 (33.33%) Mathematics
2 1 (33.33%) Computer Science
2 1 (33.33%) Selenium
2 1 (33.33%) WPF

ReactiveX
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 1 (33.33%) Ethereum
Cloud Services
1 1 (33.33%) Amazon AWS
1 1 (33.33%) Google Cloud Platform
1 1 (33.33%) Microsoft Azure
1 1 (33.33%) npm
1 1 (33.33%) Yarn
Database & Business Intelligence
1 1 (33.33%) Blockchain
1 1 (33.33%) Relational Database
Development Applications
1 1 (33.33%) Appium
1 1 (33.33%) Git (software)
1 1 (33.33%) Mocha
1 1 (33.33%) Protractor
1 1 (33.33%) Selenium
General
1 1 (33.33%) Banking
1 1 (33.33%) Finance
1 1 (33.33%) Front Office
Job Titles
1 3 (100.00%) Developer
2 1 (33.33%) Angular Developer
2 1 (33.33%) C# Developer
2 1 (33.33%) C# Software Developer
2 1 (33.33%) C# WPF Developer
2 1 (33.33%) Front End Developer (Client-Side Developer)
2 1 (33.33%) Front Office Developer
2 1 (33.33%) Java Developer
2 1 (33.33%) React Developer
2 1 (33.33%) WPF Developer
Libraries, Frameworks & Software Standards
1 2 (66.67%) React
2 1 (33.33%) AngularJS
2 1 (33.33%) Chai
2 1 (33.33%) Middleware
2 1 (33.33%) Node.js
2 1 (33.33%) React Native
2 1 (33.33%) REST
2 1 (33.33%) Spring
2 1 (33.33%) WPF
Miscellaneous
1 1 (33.33%) Bitcoin
1 1 (33.33%) Derivative
1 1 (33.33%) Equities
1 1 (33.33%) Fixed Income
1 1 (33.33%) Foreign Exchange (FX)
1 1 (33.33%) Market Risk
Processes & Methodologies
1 2 (66.67%) Agile Software Development
1 2 (66.67%) TDD
2 1 (33.33%) BDD
2 1 (33.33%) Computer Science
2 1 (33.33%) Cryptocurrency
2 1 (33.33%) Cryptography
2 1 (33.33%) Front End Development
2 1 (33.33%) Kanban
2 1 (33.33%) Mathematics
2 1 (33.33%) Mobile First
2 1 (33.33%) Risk Management
2 1 (33.33%) Software Engineering
2 1 (33.33%) Test Automation
Programming Languages
1 2 (66.67%) JavaScript
2 1 (33.33%) C#
2 1 (33.33%) C++
2 1 (33.33%) Go
2 1 (33.33%) Java
2 1 (33.33%) Kotlin
2 1 (33.33%) Solidity
Qualifications
1 1 (33.33%) Computer Science Degree
1 1 (33.33%) Degree
1 1 (33.33%) Numerate Degree
System Software
1 2 (66.67%) Docker
2 1 (33.33%) Virtual Machines
Systems Management
1 1 (33.33%) Kubernetes