The table below looks at the statistics for JRuby skills in IT contracts advertised for the London region. Included is a guide to the contractor rates offered in IT contracts that have cited JRuby over the 3 months to 27 February 2017 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
27 Feb 2017
Same period 2016 Same period 2015
JRuby
England / London
Rank 404 415 -
Rank change year-on-year
+11 -
Contract jobs citing JRuby 2 10 0
As % of all contract IT jobs located in London 0.010% 0.047% -
As % of the Libraries, Frameworks & Software Standards category 0.029% 0.15% -
Number of daily rates quoted 0 10 0
Median daily rate - £500 -
UK excluding London median daily rate - - £450
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

The following table is for comparison with the above and provides statistics for the entire Libraries, Frameworks & Software Standards category in contract jobs advertised in the London region.

Libraries, Frameworks & Software Standards Category
London
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
6818 6702 6406
As % of all contract IT jobs located in London 35.06% 31.68% 30.09%
Number of daily rates quoted 5138 4951 4722
Median daily rate £475 £450 £425
Median daily rate % change year-on-year
+5.55% +5.88%
90% offered a daily rate of more than £345 £325 £315
10% offered a daily rate of more than £600 £600 £575
UK excluding London median daily rate £375 £363 £350
% change year-on-year
+3.44% +3.57%
Number of hourly rates quoted 34 40 22
Median hourly rate £47.50 £50.00 £29.00
Median hourly rate % change year-on-year
-5.00% +72.41%
90% offered a hourly rate of more than £26.75 £22.62 £20.00
10% offered a hourly rate of more than £72.00 £52.75 £55.00
UK excluding London median hourly rate £40.00 £38.75 £35.00
% change year-on-year
+3.22% +10.71%

JRuby
Jobs Demand Trend in London

The demand trend of contract jobs across the London region citing JRuby as a proportion of all IT contracts with a match in the Libraries, Frameworks & Software Standards category.

JRuby Jobs Demand Trend in London

JRuby
Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing JRuby across the London region.

JRuby Daily Rate Trend in London

JRuby
Top 30 Related IT Skills in London

For the 6 months to 27 February 2017, IT contractor jobs citing JRuby also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for JRuby.

1 4 (66.67%) Finance
1 4 (66.67%) Scrum
1 4 (66.67%) Jython
1 4 (66.67%) Agile Software Development
1 4 (66.67%) Java
1 4 (66.67%) Groovy
1 4 (66.67%) Scala
1 4 (66.67%) Amazon AWS
1 4 (66.67%) Clojure
2 3 (50.00%) RabbitMQ
2 3 (50.00%) CSS3
2 3 (50.00%) Responsive Web Design
2 3 (50.00%) AngularJS
2 3 (50.00%) Analytical Skills
2 3 (50.00%) HTML
2 3 (50.00%) HTML5
2 3 (50.00%) Puppet
2 3 (50.00%) MongoDB
2 3 (50.00%) Grails
2 3 (50.00%) YUI
2 3 (50.00%) jQuery
2 3 (50.00%) JavaScript
2 3 (50.00%) MySQL
2 3 (50.00%) CSS
2 3 (50.00%) Python
2 3 (50.00%) TDD
3 2 (33.33%) Video on Demand
3 2 (33.33%) REST
4 1 (16.67%) Spock
4 1 (16.67%) Geb

JRuby
Top Related 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 1 (16.67%) Elasticsearch
1 1 (16.67%) Tomcat
Cloud Services
1 4 (66.67%) Amazon AWS
2 1 (16.67%) Amazon EC2
2 1 (16.67%) Amazon S3
2 1 (16.67%) AWS OpsWorks
2 1 (16.67%) PaaS
Database & Business Intelligence
1 3 (50.00%) MongoDB
1 3 (50.00%) MySQL
2 1 (16.67%) NoSQL
2 1 (16.67%) Redis
Development Applications
1 1 (16.67%) Capybara
1 1 (16.67%) Cucumber
1 1 (16.67%) Geb
1 1 (16.67%) Git (software)
1 1 (16.67%) Gradle
1 1 (16.67%) JIRA
1 1 (16.67%) JUnit
1 1 (16.67%) Spock
1 1 (16.67%) Vagrant
General
1 4 (66.67%) Finance
Job Titles
1 5 (83.33%) Developer
2 4 (66.67%) Java Developer
2 4 (66.67%) Senior Developer
2 4 (66.67%) Senior Java Developer
3 1 (16.67%) Ruby on Rails Developer
3 1 (16.67%) Test Automation Engineer
3 1 (16.67%) Test Engineer
Libraries, Frameworks & Software Standards
1 3 (50.00%) AngularJS
1 3 (50.00%) CSS
1 3 (50.00%) CSS3
1 3 (50.00%) Grails
1 3 (50.00%) HTML
1 3 (50.00%) HTML5
1 3 (50.00%) jQuery
1 3 (50.00%) RabbitMQ
1 3 (50.00%) YUI
2 2 (33.33%) REST
3 1 (16.67%) Node.js
3 1 (16.67%) Ruby on Rails
3 1 (16.67%) RxJava
Miscellaneous
1 3 (50.00%) Analytical Skills
2 2 (33.33%) Video on Demand
3 1 (16.67%) Enterprise Software
3 1 (16.67%) Mobile App
3 1 (16.67%) Over-the-Top Content
Processes & Methodologies
1 4 (66.67%) Agile Software Development
1 4 (66.67%) Scrum
2 3 (50.00%) Responsive Web Design
2 3 (50.00%) TDD
3 1 (16.67%) Active Record
3 1 (16.67%) API Testing
3 1 (16.67%) Automated Testing
3 1 (16.67%) BDD
3 1 (16.67%) Case Management
3 1 (16.67%) Compatibility Testing
3 1 (16.67%) Defect Tracking
3 1 (16.67%) Kanban
Programming Languages
1 4 (66.67%) Clojure
1 4 (66.67%) Groovy
1 4 (66.67%) Java
1 4 (66.67%) Jython
1 4 (66.67%) Scala
2 3 (50.00%) JavaScript
2 3 (50.00%) Python
3 1 (16.67%) Erlang
3 1 (16.67%) Go
3 1 (16.67%) Ruby
3 1 (16.67%) SQL
Qualifications
1 1 (16.67%) ISEB
System Software
1 1 (16.67%) Docker
Systems Management
1 3 (50.00%) Puppet