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 30 March 2017 with a comparison to the same period in the previous 2 years.

JRuby
UK
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 839 931 966
Rank change year-on-year +92 +35  
Permanent jobs citing JRuby 13 19 3
As % of all permanent IT jobs advertised in the UK 0.015% 0.018% 0.003%
As % of the Libraries, Frameworks & Software Standards category 0.038% 0.047% 0.007%
Number of salaries quoted 10 19 2
Median salary £52,500 £62,500 £52,500
Median salary % change year-on-year -16.00% +19.04%  
UK excluding London median salary - £57,500 -

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 34444 40113 40673
As % of all permanent IT job vacancies advertised in the UK 40.29% 38.36% 37.78%
Number of salaries quoted 29393 34564 34560
Median salary £45,000 £45,000 £44,500
Median salary % change year-on-year - +1.12%  
90% offered a salary of more than £31,500 £30,500 £30,000
10% offered a salary of more than £70,000 £65,000 £67,500
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +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 30 March 2017.

Salary histogram for JRuby in the UK

JRuby
Top 6 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 30 March 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 +71 13 £52,500 -17.64% 1
London +67 10 £52,500 -19.23%
City of London +38 5 £52,500 -34.37%
South East - 3 - -
Surrey - 3 - -
Guildford - 1 - -

For the 6 months to 30 March 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 25 (86.21%) Agile Software Development
2 24 (82.76%) Java
3 22 (75.86%) Groovy
3 22 (75.86%) Scala
4 18 (62.07%) JavaScript
5 15 (51.72%) TDD
5 15 (51.72%) Spring
6 14 (48.28%) Finance
7 13 (44.83%) Scrum
7 13 (44.83%) Jython
7 13 (44.83%) HTML
7 13 (44.83%) HTML5
8 12 (41.38%) Continuous Integration
8 12 (41.38%) AngularJS
9 11 (37.93%) Clojure
9 11 (37.93%) Open Source
10 10 (34.48%) Python
10 10 (34.48%) MVC
10 10 (34.48%) NoSQL
10 10 (34.48%) REST
10 10 (34.48%) Spring Integration
10 10 (34.48%) Jenkins
11 9 (31.03%) Web Services
11 9 (31.03%) CSS
11 9 (31.03%) SQL
11 9 (31.03%) Software Engineering
12 8 (27.59%) Java EE
12 8 (27.59%) Spring MVC
12 8 (27.59%) Amazon AWS
12 8 (27.59%) DevOps

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 (6.90%) Tomcat
1 2 (6.90%) WebSphere
Cloud Services
1 8 (27.59%) Amazon AWS
2 2 (6.90%) Cloud Computing
2 2 (6.90%) Google App Engine
2 2 (6.90%) Google Cloud Platform
2 2 (6.90%) Rackspace Cloud
3 1 (3.45%) Microsoft Azure
Database & Business Intelligence
1 10 (34.48%) NoSQL
2 7 (24.14%) SQL Server
3 3 (10.34%) Data Warehouse
3 3 (10.34%) MySQL
3 3 (10.34%) SQL Server Reporting Services
4 2 (6.90%) Apache Cassandra
4 2 (6.90%) Big Data
4 2 (6.90%) MongoDB
Development Applications
1 10 (34.48%) Jenkins
2 5 (17.24%) Git (software)
2 5 (17.24%) JIRA
2 5 (17.24%) JUnit
3 4 (13.79%) Atlassian Bamboo
3 4 (13.79%) TestNG
4 3 (10.34%) FishEye
4 3 (10.34%) Liquibase
5 2 (6.90%) Ant
5 2 (6.90%) Hudson
5 2 (6.90%) Mercurial
5 2 (6.90%) MSBuild
5 2 (6.90%) Subversion
5 2 (6.90%) TeamCity
5 2 (6.90%) VersionOne
6 1 (3.45%) Gradle
6 1 (3.45%) Vagrant
General
1 14 (48.28%) Finance
2 5 (17.24%) Telecoms
3 2 (6.90%) Financial Institution
3 2 (6.90%) Publishing
Job Titles
1 20 (68.97%) Developer
2 14 (48.28%) Java Developer
3 7 (24.14%) SQL Developer
4 6 (20.69%) Architect
4 6 (20.69%) Senior Developer
4 6 (20.69%) Senior Java Developer
5 5 (17.24%) Java Architect
5 5 (17.24%) Java Engineer
5 5 (17.24%) Java Software Engineer
5 5 (17.24%) JavaScript Developer
5 5 (17.24%) Ruby Developer
5 5 (17.24%) Ruby on Rails Developer
5 5 (17.24%) Software Engineer
6 4 (13.79%) Agile Developer
6 4 (13.79%) Developer/Software Engineer
6 4 (13.79%) Java Scala Developer
6 4 (13.79%) Java Software Developer
6 4 (13.79%) Scala Developer
7 3 (10.34%) Cloud Architect
7 3 (10.34%) Cloud Solutions Architect
Libraries, Frameworks & Software Standards
1 15 (51.72%) Spring
2 13 (44.83%) HTML
2 13 (44.83%) HTML5
3 12 (41.38%) AngularJS
4 10 (34.48%) REST
4 10 (34.48%) Spring Integration
5 9 (31.03%) CSS
5 9 (31.03%) Web Services
6 8 (27.59%) Java EE
6 8 (27.59%) Spring MVC
7 7 (24.14%) CSS3
7 7 (24.14%) Node.js
7 7 (24.14%) XML
8 6 (20.69%) Apache Camel
8 6 (20.69%) Grails
8 6 (20.69%) React
9 5 (17.24%) Dropwizard
9 5 (17.24%) J2EE
9 5 (17.24%) JSON
9 5 (17.24%) Ruby on Rails
Miscellaneous
1 3 (10.34%) Analytical Skills
2 2 (6.90%) Blog
3 1 (3.45%) Mobile App
3 1 (3.45%) Over-the-Top Content
3 1 (3.45%) Streaming Video
3 1 (3.45%) Video on Demand
Operating Systems
1 2 (6.90%) Linux
1 2 (6.90%) Windows
Processes & Methodologies
1 25 (86.21%) Agile Software Development
2 15 (51.72%) TDD
3 13 (44.83%) Scrum
4 12 (41.38%) Continuous Integration
5 11 (37.93%) Open Source
6 10 (34.48%) MVC
7 9 (31.03%) Software Engineering
8 8 (27.59%) DevOps
9 7 (24.14%) Continuous Improvement
10 6 (20.69%) Risk Management
10 6 (20.69%) SDLC
11 5 (17.24%) Kanban
11 5 (17.24%) Mentoring
11 5 (17.24%) Open Source Development
12 4 (13.79%) Asset Management
12 4 (13.79%) Concurrent Programming
12 4 (13.79%) Data Modelling
12 4 (13.79%) Multithreading
12 4 (13.79%) Quantitative Analysis
12 4 (13.79%) Test Scripting
Programming Languages
1 24 (82.76%) Java
2 22 (75.86%) Groovy
2 22 (75.86%) Scala
3 18 (62.07%) JavaScript
4 13 (44.83%) Jython
5 11 (37.93%) Clojure
6 10 (34.48%) Python
7 9 (31.03%) SQL
8 7 (24.14%) Ruby
9 4 (13.79%) Kotlin
10 3 (10.34%) C#
10 3 (10.34%) C++
10 3 (10.34%) T-SQL
11 2 (6.90%) Perl
12 1 (3.45%) ANSI SQL
12 1 (3.45%) Erlang
12 1 (3.45%) Go
12 1 (3.45%) PowerShell
Qualifications
1 3 (10.34%) Degree
Quality Assurance & Compliance
1 1 (3.45%) QA
System Software
1 2 (6.90%) KVM
1 2 (6.90%) VirtualBox
1 2 (6.90%) VMware Infrastructure
1 2 (6.90%) Xen
2 1 (3.45%) Docker
Systems Management
1 2 (6.90%) Ansible
1 2 (6.90%) Opscode Chef
1 2 (6.90%) Puppet
Vendors
1 3 (10.34%) Cognos
2 2 (6.90%) CA Agile Central
2 2 (6.90%) Cognizant
2 2 (6.90%) Google
2 2 (6.90%) Perforce
2 2 (6.90%) Rackspace
2 2 (6.90%) VMware
3 1 (3.45%) Oracle
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