Period
to 21 July 2017

The following table provides summary statistics for contract job vacancies advertised in London 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 21 July 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
England > London
6 months to
21 Jul 2017
Same period 2016 Same period 2015
Rank 580 580 -
Rank change year-on-year 0 - +603
Contract jobs citing JRuby 12 30 0
As % of all contract IT jobs advertised in London 0.029% 0.066% -
As % of the Libraries, Frameworks & Software Standards category 0.080% 0.20% -
Number of daily rates quoted 11 30 0
London median daily rate £650 £575 -
Median daily rate % change year-on-year +13.04% - -
England median daily rate £650 £575 -
% change year-on-year +13.04% - -
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - -

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 contract job vacancies advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 15055 14664 14245
As % of all contract IT job vacancies advertised in London 35.77% 32.33% 30.91%
Number of daily rates quoted 11183 11076 10272
London median daily rate £494 £465 £450
Median daily rate % change year-on-year +6.13% +3.33% +5.88%
10th Percentile £338 £313 £300
90th Percentile £650 £638 £625
England median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +3.23%
Number of hourly rates quoted 98 49 83
London median hourly rate £38.75 £30.00 £30.00
Median hourly rate % change year-on-year +29.17% - -14.29%
10th Percentile £18.40 £18.86 £13.60
90th Percentile £53.94 £57.50 £70.00
England median hourly rate £41.00 £37.50 £36.00
% change year-on-year +9.33% +4.17% +2.86%

JRuby
Job Vacancy Trend in London

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

Job vacancy trend for JRuby in London

JRuby
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for JRuby in London

JRuby
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JRuby in London over the 6 months to 21 July 2017.

Contractor daily rate histogram for JRuby in London

For the 6 months to 21 July 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 11 (91.67%) Java
1 11 (91.67%) Scrum
1 11 (91.67%) Jython
1 11 (91.67%) Agile Software Development
1 11 (91.67%) Groovy
1 11 (91.67%) Scala
1 11 (91.67%) Amazon AWS
1 11 (91.67%) Clojure
2 10 (83.33%) RabbitMQ
2 10 (83.33%) Puppet
2 10 (83.33%) MongoDB
2 10 (83.33%) AngularJS
2 10 (83.33%) CSS3
2 10 (83.33%) Responsive Web Design
2 10 (83.33%) Analytical Skills
2 10 (83.33%) HTML5
2 10 (83.33%) TDD
2 10 (83.33%) Grails
2 10 (83.33%) YUI
2 10 (83.33%) jQuery
2 10 (83.33%) HTML
2 10 (83.33%) Finance
2 10 (83.33%) JavaScript
2 10 (83.33%) MySQL
2 10 (83.33%) CSS
2 10 (83.33%) Python
3 2 (16.67%) Video on Demand
3 2 (16.67%) REST
4 1 (8.33%) Cucumber
4 1 (8.33%) BDD

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 1 (8.33%) Elasticsearch
Cloud Services
1 11 (91.67%) Amazon AWS
2 1 (8.33%) Amazon EC2
2 1 (8.33%) Amazon S3
2 1 (8.33%) AWS OpsWorks
2 1 (8.33%) PaaS
Database & Business Intelligence
1 10 (83.33%) MongoDB
1 10 (83.33%) MySQL
2 1 (8.33%) NoSQL
2 1 (8.33%) Redis
Development Applications
1 1 (8.33%) Capybara
1 1 (8.33%) Cucumber
1 1 (8.33%) Geb
1 1 (8.33%) Git (software)
1 1 (8.33%) Gradle
1 1 (8.33%) JIRA
1 1 (8.33%) JUnit
1 1 (8.33%) Spock
1 1 (8.33%) Vagrant
General
1 10 (83.33%) Finance
Job Titles
1 6 (50.00%) Developer
1 6 (50.00%) Java Developer
1 6 (50.00%) Senior Developer
1 6 (50.00%) Senior Java Developer
2 5 (41.67%) Development Team Leader
2 5 (41.67%) Java Development Team Leader
2 5 (41.67%) Java Team Leader
2 5 (41.67%) Team Leader
3 4 (33.33%) Technical Leader
3 4 (33.33%) Technical Team Leader
4 1 (8.33%) Test Automation Engineer
4 1 (8.33%) Test Engineer
Libraries, Frameworks & Software Standards
1 10 (83.33%) AngularJS
1 10 (83.33%) CSS
1 10 (83.33%) CSS3
1 10 (83.33%) Grails
1 10 (83.33%) HTML
1 10 (83.33%) HTML5
1 10 (83.33%) jQuery
1 10 (83.33%) RabbitMQ
1 10 (83.33%) YUI
2 2 (16.67%) REST
3 1 (8.33%) RxJava
Miscellaneous
1 10 (83.33%) Analytical Skills
2 2 (16.67%) Video on Demand
3 1 (8.33%) Enterprise Software
3 1 (8.33%) Mobile App
3 1 (8.33%) Over-the-Top Content
Processes & Methodologies
1 11 (91.67%) Agile Software Development
1 11 (91.67%) Scrum
2 10 (83.33%) Responsive Web Design
2 10 (83.33%) TDD
3 1 (8.33%) API Testing
3 1 (8.33%) BDD
3 1 (8.33%) Case Management
3 1 (8.33%) Compatibility Testing
3 1 (8.33%) Defect Tracking
3 1 (8.33%) Kanban
3 1 (8.33%) Test Automation
Programming Languages
1 11 (91.67%) Clojure
1 11 (91.67%) Groovy
1 11 (91.67%) Java
1 11 (91.67%) Jython
1 11 (91.67%) Scala
2 10 (83.33%) JavaScript
2 10 (83.33%) Python
3 1 (8.33%) Go
3 1 (8.33%) SQL
Qualifications
1 1 (8.33%) ISEB
System Software
1 1 (8.33%) Docker
Systems Management
1 10 (83.33%) Puppet