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 24 August 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
24 Aug 2016
Same period 2015 Same period 2014
JRuby
Rank 645 661 621
Rank change year-on-year
+16 -40
Contract jobs citing JRuby 16 1 3
As % of all contract IT jobs located in the UK 0.029% 0.002% 0.005%
As % of the Libraries, Frameworks & Software Standards category 0.099% 0.006% 0.019%
Number of daily rates quoted 16 1 2
Median daily rate £575 £550 £345
Median daily rate % change year-on-year
+4.54% +59.42%
90% offered a daily rate of more than £488 £550 £301
10% offered a daily rate of more than £625 £550 £389
UK excluding London median daily rate £500 - £345
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
16193 16315 15394
As % of all contract IT jobs located in the UK 29.70% 27.91% 27.75%
Number of daily rates quoted 11229 11015 9789
Median daily rate £420 £400 £375
Median daily rate % change year-on-year
+5.00% +6.66%
90% offered a daily rate of more than £300 £288 £270
10% offered a daily rate of more than £550 £550 £525
UK excluding London median daily rate £375 £363 £350
% change year-on-year
+3.44% +3.57%
Number of hourly rates quoted 199 286 218
Median hourly rate £40.00 £39.00 £35.00
Median hourly rate % change year-on-year
+2.56% +11.42%
90% offered a hourly rate of more than £19.97 £17.50 £17.50
10% offered a hourly rate of more than £52.00 £52.17 £55.60
UK excluding London median hourly rate £40.00 £39.25 £34.00
% change year-on-year
+1.91% +15.44%

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 24 August 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 24 August 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 +17 16 £575 +4.54% 1
London +19 15 £575 +4.54% 1
City of London - 9 £575 - 1
Leeds - 1 £500 -
West Yorkshire - 1 £500 -
Yorkshire - 1 £500 -

JRuby
Top 30 Related IT Skills

For the 6 months to 24 August 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 27 (84.38%) Java
1 27 (84.38%) Scala
2 26 (81.25%) Groovy
3 25 (78.13%) JavaScript
3 25 (78.13%) HTML
4 24 (75.00%) Scrum
4 24 (75.00%) Jython
4 24 (75.00%) Agile Software Development
4 24 (75.00%) TDD
4 24 (75.00%) HTML5
5 23 (71.88%) Clojure
6 22 (68.75%) AngularJS
6 22 (68.75%) CSS
7 21 (65.63%) Finance
7 21 (65.63%) Puppet
7 21 (65.63%) CSS3
8 20 (62.50%) MongoDB
8 20 (62.50%) Amazon AWS
9 18 (56.25%) jQuery
9 18 (56.25%) MySQL
9 18 (56.25%) Python
10 17 (53.13%) Grails
10 17 (53.13%) YUI
10 17 (53.13%) RabbitMQ
10 17 (53.13%) Responsive Web Design
10 17 (53.13%) Analytical Skills
11 10 (31.25%) REST
11 10 (31.25%) NoSQL
11 10 (31.25%) MVC
12 8 (25.00%) 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 (3.13%) Tomcat
Cloud Services
1 20 (62.50%) Amazon AWS
2 3 (9.38%) Amazon EC2
2 3 (9.38%) PaaS
3 2 (6.25%) GitHub
4 1 (3.13%) Amazon ElastiCache
Communications & Networking
1 4 (12.50%) Network Security
1 4 (12.50%) SAN
2 3 (9.38%) LDAP
3 1 (3.13%) HTTP
Database & Business Intelligence
1 20 (62.50%) MongoDB
2 18 (56.25%) MySQL
3 10 (31.25%) NoSQL
4 4 (12.50%) Apache Cassandra
5 3 (9.38%) SQL Server
6 1 (3.13%) Data Warehouse
6 1 (3.13%) Redis
Development Applications
1 6 (18.75%) Git (software)
2 5 (15.63%) Gradle
2 5 (15.63%) Spock
3 3 (9.38%) Geb
3 3 (9.38%) Jenkins
3 3 (9.38%) JUnit
3 3 (9.38%) Vagrant
4 2 (6.25%) Ant
4 2 (6.25%) EasyMock
4 2 (6.25%) jMock
4 2 (6.25%) Maven
4 2 (6.25%) Mockito
4 2 (6.25%) Subversion
5 1 (3.13%) Grunt
5 1 (3.13%) gulp
5 1 (3.13%) Selenium
General
1 21 (65.63%) Finance
2 3 (9.38%) Retail
Job Titles
1 28 (87.50%) Developer
2 24 (75.00%) Java Developer
3 22 (68.75%) Senior Developer
4 21 (65.63%) Senior Java Developer
5 4 (12.50%) Administrator
5 4 (12.50%) Linux Administrator
5 4 (12.50%) Linux Systems Administrator
5 4 (12.50%) Systems Administrator
6 3 (9.38%) Agile Developer
6 3 (9.38%) Agile Java Developer
6 3 (9.38%) PHP Developer
6 3 (9.38%) Senior Agile Developer
6 3 (9.38%) Senior Agile Java Developer
7 1 (3.13%) JavaScript Developer
7 1 (3.13%) Senior PHP Developer
Libraries, Frameworks & Software Standards
1 25 (78.13%) HTML
2 24 (75.00%) HTML5
3 22 (68.75%) AngularJS
3 22 (68.75%) CSS
4 21 (65.63%) CSS3
5 18 (56.25%) jQuery
6 17 (53.13%) Grails
6 17 (53.13%) RabbitMQ
6 17 (53.13%) YUI
7 10 (31.25%) REST
8 8 (25.00%) Node.js
9 7 (21.88%) SOAP
9 7 (21.88%) Spring
10 6 (18.75%) Spring MVC
11 4 (12.50%) JSON
11 4 (12.50%) RESTful
11 4 (12.50%) XML
12 3 (9.38%) Apache Camel
12 3 (9.38%) CodeIgniter
12 3 (9.38%) Java EE
Miscellaneous
1 17 (53.13%) Analytical Skills
2 4 (12.50%) Hedge funds
3 3 (9.38%) Algorithms
3 3 (9.38%) Mobile App
4 1 (3.13%) Computer Science
Operating Systems
1 5 (15.63%) Linux
2 4 (12.50%) VyOS
2 4 (12.50%) Windows
3 1 (3.13%) Unix
Processes & Methodologies
1 24 (75.00%) Agile Software Development
1 24 (75.00%) Scrum
1 24 (75.00%) TDD
2 17 (53.13%) Responsive Web Design
3 10 (31.25%) MVC
4 4 (12.50%) Open Source
5 3 (9.38%) BDD
5 3 (9.38%) Continuous Improvement
5 3 (9.38%) Continuous Integration
5 3 (9.38%) Data Modelling
5 3 (9.38%) DevOps
5 3 (9.38%) E-Commerce
5 3 (9.38%) Kanban
5 3 (9.38%) Project Management
6 2 (6.25%) OO
6 2 (6.25%) Unit Testing
7 1 (3.13%) Integration Testing
7 1 (3.13%) OWASP
7 1 (3.13%) Pair Programming
7 1 (3.13%) Software Engineering
Programming Languages
1 27 (84.38%) Java
1 27 (84.38%) Scala
2 26 (81.25%) Groovy
3 25 (78.13%) JavaScript
4 24 (75.00%) Jython
5 23 (71.88%) Clojure
6 18 (56.25%) Python
7 5 (15.63%) Ruby
8 4 (12.50%) Go
8 4 (12.50%) PHP
8 4 (12.50%) PowerShell
9 3 (9.38%) Erlang
9 3 (9.38%) SQL
10 1 (3.13%) C
10 1 (3.13%) C++
Qualifications
1 1 (3.13%) Degree
1 1 (3.13%) PhD
Quality Assurance & Compliance
1 1 (3.13%) QA
System Software
1 5 (15.63%) Docker
1 5 (15.63%) Virtual Machines
2 4 (12.50%) NFS
Systems Management
1 21 (65.63%) Puppet
2 4 (12.50%) Opscode Chef
Vendors
1 4 (12.50%) 3PAR
1 4 (12.50%) Brocade
1 4 (12.50%) Cisco
1 4 (12.50%) VMware
1 4 (12.50%) Vyatta