The following table provides summary statistics for permanent job vacancies with a requirement for JRuby skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JRuby over the 3 months to 24 June 2017 with a comparison to the same period in the previous 2 years.

JRuby
UK
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 872 895 968
Rank change year-on-year +23 +73  
Permanent jobs citing JRuby 11 28 7
As % of all permanent IT jobs advertised in the UK 0.013% 0.028% 0.006%
As % of the Libraries, Frameworks & Software Standards category 0.031% 0.073% 0.017%
Number of salaries quoted 10 25 7
Median salary £37,500 £62,500 £52,500
Median salary % change year-on-year -40.00% +19.04%  
UK excluding London median salary £35,500 £80,000 £53,750
% change year-on-year -55.62% +48.83%  

JRuby is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
UK
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 36036 38317 42264
As % of all permanent IT job vacancies advertised in the UK 40.97% 38.91% 38.10%
Number of salaries quoted 30270 33297 36165
Median salary £46,500 £45,000 £45,000
Median salary % change year-on-year +3.33% -  
90% offered a salary of more than £32,500 £31,000 £30,000
10% offered a salary of more than £70,000 £65,000 £70,000
UK excluding London median salary £42,500 £40,000 £40,000
% change year-on-year +6.25% -  

JRuby
Job Vacancy Trend

The job posting trend of jobs advertised citing JRuby as a proportion of all permanent or contract IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for JRuby in the UK

JRuby
Salary Trend

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

Salary trend for JRuby in the UK

JRuby
Salary Histogram

The salary distribution of IT jobs citing JRuby over the 3 months to 24 June 2017.

Salary histogram for JRuby in the UK

JRuby
Top 9 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JRuby within the UK over the 3 months to 24 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +36 11 £37,500 -41.17% 1
Manchester -18 7 £34,500 -18.34%
North West -33 7 £34,500 -18.34%
Leeds - 2 £47,500 -
Yorkshire - 2 £47,500 -
West Yorkshire - 2 £47,500 -
London +8 1 £97,500 +56.00%
South East - 1 - -
Surrey - 1 - -

For the 6 months to 24 June 2017, IT jobs citing JRuby also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for JRuby.

1 18 (75.00%) Agile Software Development
2 15 (62.50%) Java
3 14 (58.33%) SQL
3 14 (58.33%) CSS
4 13 (54.17%) Scala
5 11 (45.83%) Groovy
5 11 (45.83%) JavaScript
5 11 (45.83%) SQL Server
6 10 (41.67%) Finance
7 9 (37.50%) Scrum
8 8 (33.33%) Jython
8 8 (33.33%) TDD
8 8 (33.33%) Spring
8 8 (33.33%) Clojure
9 7 (29.17%) CSS3
9 7 (29.17%) AngularJS
9 7 (29.17%) HTML5
9 7 (29.17%) Software Engineering
9 7 (29.17%) Microsoft
9 7 (29.17%) Linux
9 7 (29.17%) HTML
9 7 (29.17%) LDAP
10 6 (25.00%) Web Services
10 6 (25.00%) Risk Management
10 6 (25.00%) Git (software)
11 5 (20.83%) Amazon AWS
11 5 (20.83%) Continuous Integration
11 5 (20.83%) Jenkins
11 5 (20.83%) Mentoring
11 5 (20.83%) J2EE

JRuby
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 (8.33%) Apache Spark
Cloud Services
1 5 (20.83%) Amazon AWS
Communications & Networking
1 7 (29.17%) LDAP
Database & Business Intelligence
1 11 (45.83%) SQL Server
2 4 (16.67%) NoSQL
3 3 (12.50%) MySQL
4 2 (8.33%) Big Data
4 2 (8.33%) Hadoop
Development Applications
1 6 (25.00%) Git (software)
2 5 (20.83%) Jenkins
2 5 (20.83%) JIRA
2 5 (20.83%) JUnit
2 5 (20.83%) Subversion
3 4 (16.67%) Atlassian Bamboo
3 4 (16.67%) TestNG
4 1 (4.17%) Gradle
4 1 (4.17%) Vagrant
General
1 10 (41.67%) Finance
2 2 (8.33%) Financial Institution
2 2 (8.33%) Telecoms
3 1 (4.17%) Advertising
Job Titles
1 13 (54.17%) Developer
2 11 (45.83%) Java Developer
3 7 (29.17%) Administrator
3 7 (29.17%) Systems Administrator
4 5 (20.83%) Java Engineer
4 5 (20.83%) Java Software Engineer
4 5 (20.83%) Linux Administrator
4 5 (20.83%) Linux Systems Administrator
4 5 (20.83%) Software Engineer
5 4 (16.67%) Developer/Software Engineer
5 4 (16.67%) Java Scala Developer
5 4 (16.67%) Java Software Developer
5 4 (16.67%) JavaScript Developer
5 4 (16.67%) Ruby Developer
5 4 (16.67%) Ruby on Rails Developer
5 4 (16.67%) Scala Developer
5 4 (16.67%) Senior Developer
5 4 (16.67%) Senior Java Developer
5 4 (16.67%) SQL Developer
6 3 (12.50%) Java Scala Software Engineer
Libraries, Frameworks & Software Standards
1 14 (58.33%) CSS
2 8 (33.33%) Spring
3 7 (29.17%) AngularJS
3 7 (29.17%) CSS3
3 7 (29.17%) HTML
3 7 (29.17%) HTML5
4 6 (25.00%) Web Services
5 5 (20.83%) J2EE
6 4 (16.67%) Guice
6 4 (16.67%) Java EE
6 4 (16.67%) JAX-RS
6 4 (16.67%) JAX-WS
6 4 (16.67%) React
6 4 (16.67%) REST
6 4 (16.67%) Ruby on Rails
7 3 (12.50%) Dropwizard
7 3 (12.50%) Grails
7 3 (12.50%) Spring Integration
7 3 (12.50%) Spring MVC
7 3 (12.50%) YUI
Miscellaneous
1 3 (12.50%) Analytical Skills
1 3 (12.50%) Greenfield Project
2 1 (4.17%) Mobile App
2 1 (4.17%) Over-the-Top Content
2 1 (4.17%) Streaming Video
2 1 (4.17%) Video on Demand
Operating Systems
1 7 (29.17%) Linux
2 1 (4.17%) Unix
Processes & Methodologies
1 18 (75.00%) Agile Software Development
2 9 (37.50%) Scrum
3 8 (33.33%) TDD
4 7 (29.17%) Software Engineering
5 6 (25.00%) Risk Management
6 5 (20.83%) Continuous Integration
6 5 (20.83%) Mentoring
6 5 (20.83%) SDLC
7 4 (16.67%) Asset Management
7 4 (16.67%) Concurrent Programming
7 4 (16.67%) Identity Access Management
7 4 (16.67%) Multithreading
7 4 (16.67%) Quantitative Analysis
7 4 (16.67%) Test Scripting
8 3 (12.50%) B2B
8 3 (12.50%) Continuous Improvement
8 3 (12.50%) MVC
8 3 (12.50%) Open Source
9 2 (8.33%) Coaching
9 2 (8.33%) Continuous Delivery
Programming Languages
1 15 (62.50%) Java
2 14 (58.33%) SQL
3 13 (54.17%) Scala
4 11 (45.83%) Groovy
4 11 (45.83%) JavaScript
5 8 (33.33%) Clojure
5 8 (33.33%) Jython
6 5 (20.83%) Python
7 4 (16.67%) Kotlin
7 4 (16.67%) Ruby
8 1 (4.17%) Erlang
8 1 (4.17%) Go
Qualifications
1 3 (12.50%) Degree
2 1 (4.17%) Security Cleared
System Software
1 1 (4.17%) Docker
Vendors
1 7 (29.17%) Microsoft