The following table provides summary statistics for permanent job vacancies advertised in London 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 28 March 2017 with a comparison to the same period in the previous 2 years.

JRuby
England / London
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 567 648 660
Rank change year-on-year +81 +12  
Permanent jobs citing JRuby 10 7 3
As % of all permanent IT jobs advertised in London 0.030% 0.017% 0.007%
As % of the Libraries, Frameworks & Software Standards category 0.074% 0.042% 0.019%
Number of salaries quoted 10 7 2
Median salary £52,500 £65,000 £52,500
Median salary % change year-on-year -19.23% +23.80%  
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 advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
London
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 13536 16829 15871
As % of all permanent IT job vacancies advertised in London 40.13% 39.91% 36.99%
Number of salaries quoted 11660 14695 13462
Median salary £57,500 £55,000 £54,500
Median salary % change year-on-year +4.54% +0.91%  
90% offered a salary of more than £38,000 £37,500 £35,500
10% offered a salary of more than £80,000 £72,500 £77,500
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +6.25%  

JRuby
Job Vacancy Trend in London

The job posting trend of jobs advertised in London 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 London

JRuby
Salary Trend in London

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

Salary trend for JRuby in London

JRuby
Salary Histogram in London

The salary distribution of IT jobs citing JRuby in London over the 3 months to 28 March 2017.

Salary histogram for JRuby in London

JRuby
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JRuby within the London region over the 3 months to 28 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
City of London +40 5 £52,500 -34.37%
JRuby
England

For the 6 months to 28 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 across the London region with a requirement for JRuby.

1 21 (91.30%) Java
1 21 (91.30%) Groovy
1 21 (91.30%) Scala
2 19 (82.61%) Agile Software Development
3 14 (60.87%) Spring
4 13 (56.52%) Jython
5 12 (52.17%) Finance
5 12 (52.17%) JavaScript
5 12 (52.17%) HTML
5 12 (52.17%) HTML5
6 11 (47.83%) Clojure
6 11 (47.83%) Continuous Integration
6 11 (47.83%) TDD
7 10 (43.48%) Scrum
7 10 (43.48%) Open Source
8 9 (39.13%) NoSQL
8 9 (39.13%) Software Engineering
8 9 (39.13%) MVC
8 9 (39.13%) CSS
8 9 (39.13%) SQL
8 9 (39.13%) Web Services
8 9 (39.13%) REST
8 9 (39.13%) Spring Integration
8 9 (39.13%) Jenkins
9 8 (34.78%) Python
9 8 (34.78%) Amazon AWS
10 7 (30.43%) Spring MVC
10 7 (30.43%) SQL Server
10 7 (30.43%) CSS3
10 7 (30.43%) DevOps

JRuby
Co-occurring IT Skills in London 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 (8.70%) Tomcat
1 2 (8.70%) WebSphere
Cloud Services
1 8 (34.78%) Amazon AWS
2 2 (8.70%) Cloud Computing
2 2 (8.70%) Google App Engine
2 2 (8.70%) Google Cloud Platform
2 2 (8.70%) Rackspace Cloud
3 1 (4.35%) Microsoft Azure
Database & Business Intelligence
1 9 (39.13%) NoSQL
2 7 (30.43%) SQL Server
3 3 (13.04%) Data Warehouse
3 3 (13.04%) MySQL
3 3 (13.04%) SQL Server Reporting Services
4 2 (8.70%) Apache Cassandra
4 2 (8.70%) Big Data
4 2 (8.70%) MongoDB
Development Applications
1 9 (39.13%) Jenkins
2 5 (21.74%) Git (software)
2 5 (21.74%) JIRA
2 5 (21.74%) JUnit
3 4 (17.39%) Atlassian Bamboo
3 4 (17.39%) TestNG
4 3 (13.04%) FishEye
4 3 (13.04%) Liquibase
5 2 (8.70%) Ant
5 2 (8.70%) Hudson
5 2 (8.70%) Mercurial
5 2 (8.70%) MSBuild
5 2 (8.70%) Subversion
5 2 (8.70%) TeamCity
5 2 (8.70%) VersionOne
6 1 (4.35%) Gradle
6 1 (4.35%) Vagrant
General
1 12 (52.17%) Finance
2 4 (17.39%) Telecoms
3 2 (8.70%) Publishing
Job Titles
1 15 (65.22%) Developer
2 12 (52.17%) Java Developer
3 7 (30.43%) SQL Developer
4 6 (26.09%) Architect
5 5 (21.74%) Java Architect
5 5 (21.74%) Java Engineer
5 5 (21.74%) Java Software Engineer
5 5 (21.74%) Software Engineer
6 4 (17.39%) Developer/Software Engineer
6 4 (17.39%) Java Scala Developer
6 4 (17.39%) Java Software Developer
6 4 (17.39%) Scala Developer
6 4 (17.39%) Senior Developer
6 4 (17.39%) Senior Java Developer
7 3 (13.04%) Cloud Architect
7 3 (13.04%) Cloud Solutions Architect
7 3 (13.04%) Digital Solutions Architect
7 3 (13.04%) Java Scala Software Engineer
7 3 (13.04%) Scala Software Engineer
7 3 (13.04%) SQL BI Developer
Libraries, Frameworks & Software Standards
1 14 (60.87%) Spring
2 12 (52.17%) HTML
2 12 (52.17%) HTML5
3 9 (39.13%) CSS
3 9 (39.13%) REST
3 9 (39.13%) Spring Integration
3 9 (39.13%) Web Services
4 7 (30.43%) CSS3
4 7 (30.43%) Spring MVC
5 6 (26.09%) AngularJS
5 6 (26.09%) Grails
5 6 (26.09%) Java EE
5 6 (26.09%) XML
6 5 (21.74%) Apache Camel
6 5 (21.74%) Dropwizard
6 5 (21.74%) JSON
6 5 (21.74%) React
7 4 (17.39%) Guice
7 4 (17.39%) J2EE
7 4 (17.39%) JAX-WS
Miscellaneous
1 3 (13.04%) Analytical Skills
2 2 (8.70%) Blog
3 1 (4.35%) Mobile App
3 1 (4.35%) Over-the-Top Content
3 1 (4.35%) Streaming Video
3 1 (4.35%) Video on Demand
Operating Systems
1 2 (8.70%) Linux
1 2 (8.70%) Windows
Processes & Methodologies
1 19 (82.61%) Agile Software Development
2 11 (47.83%) Continuous Integration
2 11 (47.83%) TDD
3 10 (43.48%) Open Source
3 10 (43.48%) Scrum
4 9 (39.13%) MVC
4 9 (39.13%) Software Engineering
5 7 (30.43%) DevOps
6 6 (26.09%) Continuous Improvement
6 6 (26.09%) SDLC
7 5 (21.74%) Open Source Development
8 4 (17.39%) Asset Management
8 4 (17.39%) Concurrent Programming
8 4 (17.39%) Data Modelling
8 4 (17.39%) Kanban
8 4 (17.39%) Multithreading
8 4 (17.39%) Quantitative Analysis
8 4 (17.39%) Risk Management
8 4 (17.39%) Test Scripting
9 3 (13.04%) ETL
Programming Languages
1 21 (91.30%) Groovy
1 21 (91.30%) Java
1 21 (91.30%) Scala
2 13 (56.52%) Jython
3 12 (52.17%) JavaScript
4 11 (47.83%) Clojure
5 9 (39.13%) SQL
6 8 (34.78%) Python
7 4 (17.39%) Kotlin
8 3 (13.04%) C#
8 3 (13.04%) C++
8 3 (13.04%) T-SQL
9 2 (8.70%) Perl
9 2 (8.70%) Ruby
10 1 (4.35%) ANSI SQL
10 1 (4.35%) Erlang
10 1 (4.35%) Go
10 1 (4.35%) PowerShell
Qualifications
1 3 (13.04%) Degree
Quality Assurance & Compliance
1 1 (4.35%) QA
System Software
1 2 (8.70%) KVM
1 2 (8.70%) VirtualBox
1 2 (8.70%) VMware Infrastructure
1 2 (8.70%) Xen
2 1 (4.35%) Docker
Systems Management
1 2 (8.70%) Ansible
1 2 (8.70%) Opscode Chef
1 2 (8.70%) Puppet
Vendors
1 3 (13.04%) Cognos
2 2 (8.70%) CA Agile Central
2 2 (8.70%) Cognizant
2 2 (8.70%) Google
2 2 (8.70%) Perforce
2 2 (8.70%) Rackspace
2 2 (8.70%) VMware
3 1 (4.35%) Oracle