Period
to 18 October 2017

The following table provides summary statistics for contract job vacancies with a requirement for JRuby skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JRuby over the 6 months to 18 October 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JRuby
UK
6 months to
18 Oct 2017
Same period 2016 Same period 2015
Rank 843 860 890
Rank change year-on-year +17 +30 -18
Contract jobs citing JRuby 18 27 2
As % of all contract IT jobs advertised in the UK 0.018% 0.025% 0.002%
As % of the Libraries, Frameworks & Software Standards category 0.057% 0.084% 0.006%
Number of daily rates quoted 13 27 1
UK median daily rate £650 £575 £550
Median daily rate % change year-on-year +13.04% +4.55% +59.42%
10th Percentile £395 £448 £525
90th Percentile £800 £675 £575
UK excluding London median daily rate £500 £413 -
% change year-on-year +21.21% - -
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

JRuby is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 31792 32007 31625
As % of all contract IT jobs advertised in the UK 31.99% 30.04% 27.94%
Number of daily rates quoted 22290 22285 21568
UK median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% -
10th Percentile £313 £297 £275
90th Percentile £625 £588 £588
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.23% +3.33% +7.14%
Number of hourly rates quoted 370 374 527
UK median hourly rate £40.00 £37.25 £37.50
Median hourly rate % change year-on-year +7.38% -0.67% +8.70%
10th Percentile £18.45 £13.50 £14.25
90th Percentile £52.50 £51.35 £55.00
UK excluding London median hourly rate £40.40 £36.00 £37.50
% change year-on-year +12.23% -4.00% +10.29%

JRuby
Job Vacancy Trend

Job postings citing JRuby as a percentage of all IT jobs advertised.

Job vacancy trend for JRuby in the UK

JRuby
Contractor Daily Rate Trend

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

Contractor daily rate trend for JRuby in the UK

JRuby
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing JRuby over the 6 months to 18 October 2017.

Contractor daily rate histogram for JRuby 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 6 months to 18 October 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +30 18 £650 +13.04% 1
UK excluding London +36 10 £500 +21.21%
South West - 9 £475 -
London -15 8 £650 +13.04% 1
Midlands - 1 £850 -
West Midlands - 1 £850 -

For the 6 months to 18 October 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 with a requirement for JRuby.

1 18 (100.00%) Java
2 17 (94.44%) Python
3 10 (55.56%) Ruby
4 9 (50.00%) Amazon AWS
4 9 (50.00%) Elastic Stack
5 8 (44.44%) Clojure
5 8 (44.44%) Puppet
5 8 (44.44%) Groovy
5 8 (44.44%) Scala
5 8 (44.44%) Agile Software Development
5 8 (44.44%) Scrum
5 8 (44.44%) Jython
6 7 (38.89%) HTML
6 7 (38.89%) Finance
6 7 (38.89%) JavaScript
6 7 (38.89%) MySQL
6 7 (38.89%) CSS
6 7 (38.89%) TDD
6 7 (38.89%) Grails
6 7 (38.89%) YUI
6 7 (38.89%) jQuery
6 7 (38.89%) HTML5
6 7 (38.89%) MongoDB
6 7 (38.89%) CSS3
6 7 (38.89%) RabbitMQ
6 7 (38.89%) Responsive Web Design
6 7 (38.89%) AngularJS
6 7 (38.89%) Analytical Skills
7 5 (27.78%) Elasticsearch
7 5 (27.78%) Computer Science Degree

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 5 (27.78%) Elasticsearch
2 1 (5.56%) Apache
2 1 (5.56%) IIS
2 1 (5.56%) Jetty
2 1 (5.56%) Mongrel
2 1 (5.56%) nginx
2 1 (5.56%) Tomcat
2 1 (5.56%) WebSphere
Cloud Services
1 9 (50.00%) Amazon AWS
2 1 (5.56%) Amazon EC2
2 1 (5.56%) Amazon S3
2 1 (5.56%) AWS OpsWorks
2 1 (5.56%) Cloud Computing
2 1 (5.56%) Google App Engine
2 1 (5.56%) Google Cloud Platform
2 1 (5.56%) Microsoft Azure
2 1 (5.56%) PaaS
2 1 (5.56%) Rackspace Cloud
Communications & Networking
1 3 (16.67%) SMS
2 1 (5.56%) HTTP
Database & Business Intelligence
1 7 (38.89%) MongoDB
1 7 (38.89%) MySQL
2 1 (5.56%) NoSQL
2 1 (5.56%) Redis
Development Applications
1 2 (11.11%) Git (software)
2 1 (5.56%) Ant
2 1 (5.56%) Geb
2 1 (5.56%) Gradle
2 1 (5.56%) Jenkins
2 1 (5.56%) JUnit
2 1 (5.56%) Maven
2 1 (5.56%) Mercurial
2 1 (5.56%) MSBuild
2 1 (5.56%) Spock
2 1 (5.56%) Subversion
2 1 (5.56%) TeamCity
2 1 (5.56%) Vagrant
General
1 7 (38.89%) Finance
Job Titles
1 14 (77.78%) Developer
2 9 (50.00%) Python Developer
3 5 (27.78%) Java Developer
3 5 (27.78%) Senior Developer
3 5 (27.78%) Senior Java Developer
4 3 (16.67%) Development Team Leader
4 3 (16.67%) Java Development Team Leader
4 3 (16.67%) Java Team Leader
4 3 (16.67%) Team Leader
5 2 (11.11%) Technical Leader
5 2 (11.11%) Technical Team Leader
6 1 (5.56%) AWS DevOps
6 1 (5.56%) AWS DevOps Engineer
6 1 (5.56%) AWS Engineer
6 1 (5.56%) DevOps Engineer
Libraries, Frameworks & Software Standards
1 9 (50.00%) Elastic Stack
2 7 (38.89%) AngularJS
2 7 (38.89%) CSS
2 7 (38.89%) CSS3
2 7 (38.89%) Grails
2 7 (38.89%) HTML
2 7 (38.89%) HTML5
2 7 (38.89%) jQuery
2 7 (38.89%) RabbitMQ
2 7 (38.89%) YUI
3 1 (5.56%) REST
3 1 (5.56%) RxJava
3 1 (5.56%) Servlets
Miscellaneous
1 7 (38.89%) Analytical Skills
2 5 (27.78%) Computer Science
3 1 (5.56%) Data Centre
3 1 (5.56%) Mobile App
3 1 (5.56%) Over-the-Top Content
3 1 (5.56%) Public Cloud
3 1 (5.56%) Video on Demand
Operating Systems
1 1 (5.56%) CentOS
1 1 (5.56%) Debian
1 1 (5.56%) Fedora
1 1 (5.56%) Linux
1 1 (5.56%) Ubuntu
1 1 (5.56%) Windows
Processes & Methodologies
1 8 (44.44%) Agile Software Development
1 8 (44.44%) Scrum
2 7 (38.89%) Responsive Web Design
2 7 (38.89%) TDD
3 1 (5.56%) Continuous Delivery
3 1 (5.56%) Continuous Integration
3 1 (5.56%) DevOps
3 1 (5.56%) E-Commerce
3 1 (5.56%) Kanban
3 1 (5.56%) Mentoring
3 1 (5.56%) Software Engineering
Programming Languages
1 18 (100.00%) Java
2 17 (94.44%) Python
3 10 (55.56%) Ruby
4 8 (44.44%) Clojure
4 8 (44.44%) Groovy
4 8 (44.44%) Jython
4 8 (44.44%) Scala
5 7 (38.89%) JavaScript
6 2 (11.11%) Go
7 1 (5.56%) Bash Shell
7 1 (5.56%) Perl
7 1 (5.56%) PowerShell
7 1 (5.56%) SQL
Qualifications
1 5 (27.78%) Computer Science Degree
1 5 (27.78%) Degree
Quality Assurance & Compliance
1 1 (5.56%) GCP
System Software
1 1 (5.56%) Docker
1 1 (5.56%) KVM
1 1 (5.56%) VirtualBox
1 1 (5.56%) VMware Infrastructure
1 1 (5.56%) Xen
Systems Management
1 8 (44.44%) Puppet
2 4 (22.22%) Kibana
2 4 (22.22%) logstash
3 1 (5.56%) Ansible
3 1 (5.56%) Opscode Chef
3 1 (5.56%) Salt
Vendors
1 1 (5.56%) Google
1 1 (5.56%) Microsoft
1 1 (5.56%) Perforce
1 1 (5.56%) Rackspace
1 1 (5.56%) Red Hat
1 1 (5.56%) VMware