The table below looks at the statistics for JRuby skills in IT contracts advertised across the UK. Included is a guide to the contractor rates offered in IT contracts that have cited JRuby over the 3 months to 27 September 2016 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 Sep 2016
Same period 2015 Same period 2014
JRuby
Rank 648 660 640
Rank change year-on-year
+12 -20
Contract jobs citing JRuby 9 1 2
As % of all contract IT jobs located in the UK 0.017% 0.002% 0.003%
As % of the Libraries, Frameworks & Software Standards category 0.055% 0.006% 0.013%
Number of daily rates quoted 9 1 1
Median daily rate £575 £550 £400
Median daily rate % change year-on-year
+4.54% +37.50%
UK excluding London median daily rate £500 - £400
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 across the UK.

Libraries, Frameworks & Software Standards Category
UK
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
16462 16144 15521
As % of all contract IT jobs located in the UK 30.76% 28.22% 27.13%
Number of daily rates quoted 11405 11120 10101
Median daily rate £415 £400 £375
Median daily rate % change year-on-year
+3.75% +6.66%
90% offered a daily rate of more than £300 £288 £275
10% offered a daily rate of more than £550 £550 £530
UK excluding London median daily rate £375 £375 £350
% change year-on-year
- +7.14%
Number of hourly rates quoted 193 302 174
Median hourly rate £41.00 £37.45 £35.00
Median hourly rate % change year-on-year
+9.47% +7.00%
90% offered a hourly rate of more than £19.44 £17.20 £19.00
10% offered a hourly rate of more than £52.00 £45.00 £71.00
UK excluding London median hourly rate £40.00 £37.50 £35.00
% change year-on-year
+6.66% +7.14%

JRuby
Jobs Demand Trend

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

JRuby Jobs Demand Trend in the UK

JRuby
Daily Rate Trend

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

JRuby Daily Rate Trend in the UK

JRuby
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing JRuby within the UK over the 3 months to 27 September 2016.

JRuby Daily Rate Histogram in the UK

JRuby
Top 6 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JRuby within the UK over the 3 months to 27 September 2016. 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
(Click see detailed
statistics and trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +36 9 £575 +4.54% 1
London +1 8 £575 +4.54% 1
City of London - 5 £575 -
Leeds - 1 £500 -
West Yorkshire - 1 £500 -
Yorkshire - 1 £500 -

JRuby
Top 30 Related IT Skills

For the 6 months to 27 September 2016, 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 with a requirement for JRuby.

1 25 (86.21%) Scala
2 24 (82.76%) Java
2 24 (82.76%) Groovy
3 22 (75.86%) JavaScript
3 22 (75.86%) HTML
3 22 (75.86%) Jython
4 21 (72.41%) Scrum
4 21 (72.41%) Agile Software Development
4 21 (72.41%) TDD
4 21 (72.41%) HTML5
4 21 (72.41%) Clojure
5 19 (65.52%) CSS
5 19 (65.52%) Finance
5 19 (65.52%) Puppet
5 19 (65.52%) AngularJS
6 18 (62.07%) CSS3
6 18 (62.07%) MongoDB
6 18 (62.07%) Amazon AWS
7 16 (55.17%) jQuery
8 15 (51.72%) Grails
8 15 (51.72%) YUI
8 15 (51.72%) Python
8 15 (51.72%) MySQL
8 15 (51.72%) RabbitMQ
8 15 (51.72%) Responsive Web Design
8 15 (51.72%) Analytical Skills
9 9 (31.03%) NoSQL
9 9 (31.03%) REST
9 9 (31.03%) MVC
10 7 (24.14%) Node.js

JRuby
Top Related 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 (3.45%) Tomcat
Cloud Services
1 18 (62.07%) Amazon AWS
2 3 (10.34%) Amazon EC2
2 3 (10.34%) PaaS
3 2 (6.90%) GitHub
Communications & Networking
1 4 (13.79%) Network Security
1 4 (13.79%) SAN
2 3 (10.34%) LDAP
Database & Business Intelligence
1 18 (62.07%) MongoDB
2 15 (51.72%) MySQL
3 9 (31.03%) NoSQL
4 4 (13.79%) Apache Cassandra
5 3 (10.34%) SQL Server
Development Applications
1 6 (20.69%) Git (software)
2 5 (17.24%) Gradle
2 5 (17.24%) Spock
3 3 (10.34%) Geb
3 3 (10.34%) Jenkins
3 3 (10.34%) JUnit
3 3 (10.34%) Vagrant
4 2 (6.90%) Ant
4 2 (6.90%) EasyMock
4 2 (6.90%) jMock
4 2 (6.90%) Maven
4 2 (6.90%) Mockito
4 2 (6.90%) Subversion
5 1 (3.45%) Grunt
5 1 (3.45%) gulp
5 1 (3.45%) Selenium
General
1 19 (65.52%) Finance
2 3 (10.34%) Retail
Job Titles
1 25 (86.21%) Developer
2 21 (72.41%) Java Developer
3 20 (68.97%) Senior Developer
4 19 (65.52%) Senior Java Developer
5 4 (13.79%) Administrator
5 4 (13.79%) Linux Administrator
5 4 (13.79%) Linux Systems Administrator
5 4 (13.79%) Systems Administrator
6 3 (10.34%) Agile Developer
6 3 (10.34%) Agile Java Developer
6 3 (10.34%) PHP Developer
6 3 (10.34%) Senior Agile Developer
6 3 (10.34%) Senior Agile Java Developer
7 1 (3.45%) JavaScript Developer
7 1 (3.45%) Senior PHP Developer
Libraries, Frameworks & Software Standards
1 22 (75.86%) HTML
2 21 (72.41%) HTML5
3 19 (65.52%) AngularJS
3 19 (65.52%) CSS
4 18 (62.07%) CSS3
5 16 (55.17%) jQuery
6 15 (51.72%) Grails
6 15 (51.72%) RabbitMQ
6 15 (51.72%) YUI
7 9 (31.03%) REST
8 7 (24.14%) Node.js
9 6 (20.69%) SOAP
9 6 (20.69%) Spring
10 5 (17.24%) Spring MVC
11 3 (10.34%) CodeIgniter
11 3 (10.34%) Java EE
11 3 (10.34%) JSON
11 3 (10.34%) RESTful
11 3 (10.34%) Spring Integration
11 3 (10.34%) XML
Miscellaneous
1 15 (51.72%) Analytical Skills
2 4 (13.79%) Hedge funds
3 3 (10.34%) Algorithms
3 3 (10.34%) Mobile App
Operating Systems
1 5 (17.24%) Linux
2 4 (13.79%) VyOS
2 4 (13.79%) Windows
3 1 (3.45%) Unix
Processes & Methodologies
1 21 (72.41%) Agile Software Development
1 21 (72.41%) Scrum
1 21 (72.41%) TDD
2 15 (51.72%) Responsive Web Design
3 9 (31.03%) MVC
4 3 (10.34%) BDD
4 3 (10.34%) Continuous Improvement
4 3 (10.34%) Continuous Integration
4 3 (10.34%) Data Modelling
4 3 (10.34%) DevOps
4 3 (10.34%) E-Commerce
4 3 (10.34%) Kanban
4 3 (10.34%) Open Source
4 3 (10.34%) Project Management
5 1 (3.45%) Microservices
5 1 (3.45%) OO
5 1 (3.45%) Pair Programming
5 1 (3.45%) Unit Testing
Programming Languages
1 25 (86.21%) Scala
2 24 (82.76%) Groovy
2 24 (82.76%) Java
3 22 (75.86%) JavaScript
3 22 (75.86%) Jython
4 21 (72.41%) Clojure
5 15 (51.72%) Python
6 4 (13.79%) PowerShell
6 4 (13.79%) Ruby
7 3 (10.34%) Erlang
7 3 (10.34%) Go
7 3 (10.34%) PHP
7 3 (10.34%) SQL
System Software
1 5 (17.24%) Docker
1 5 (17.24%) Virtual Machines
2 4 (13.79%) NFS
Systems Management
1 19 (65.52%) Puppet
2 4 (13.79%) Opscode Chef
Vendors
1 4 (13.79%) 3PAR
1 4 (13.79%) Brocade
1 4 (13.79%) Cisco
1 4 (13.79%) VMware
1 4 (13.79%) Vyatta