Period
to 20 January 2018

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 20 January 2018 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
20 Jan 2018
Same period 2017 Same period 2016
Rank 619 587 599
Rank change year-on-year -32 +12 -
Contract jobs citing JRuby 2 8 6
As % of all contract IT jobs advertised in London 0.004% 0.019% 0.014%
As % of the Libraries, Frameworks & Software Standards category 0.012% 0.054% 0.042%
Number of daily rates quoted 0 7 6
London median daily rate - £650 £450
Median daily rate % change year-on-year - +44.44% -
England median daily rate £700 £613 £450
% change year-on-year +14.29% +36.11% +8.43%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England 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 advertised in London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 16,901 14,861 14,384
As % of all contract IT jobs advertised in London 36.65% 35.53% 32.53%
Number of daily rates quoted 13,082 11,082 10,755
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £350 £325 £306
90th Percentile £650 £625 £625
England median daily rate £475 £425 £420
% change year-on-year +11.76% +1.19% +5.00%
Number of hourly rates quoted 98 78 96
London median hourly rate £35.00 £45.00 £37.75
Median hourly rate % change year-on-year -22.22% +19.21% +4.86%
10th Percentile £20.75 £20.80 £16.44
90th Percentile £47.83 £71.25 £55.00
England median hourly rate £40.00 £40.00 £37.50
% change year-on-year - +6.67% +7.14%

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

For the 6 months to 20 January 2018, 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 2 (100.00%) C#
1 2 (100.00%) Apache
1 2 (100.00%) Web Development
1 2 (100.00%) Groovy
1 2 (100.00%) Finance
1 2 (100.00%) Jython
1 2 (100.00%) Scala
1 2 (100.00%) Clojure
1 2 (100.00%) Kotlin
1 2 (100.00%) Front End Development
2 1 (50.00%) Microsoft
2 1 (50.00%) HTML
2 1 (50.00%) Java
2 1 (50.00%) JavaScript
2 1 (50.00%) .NET
2 1 (50.00%) ASP.NET
2 1 (50.00%) CSS

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 2 (100.00%) Apache
General
1 2 (100.00%) Finance
Job Titles
1 2 (100.00%) Developer
2 1 (50.00%) C# Developer
2 1 (50.00%) Front End Developer (Client-Side Developer)
2 1 (50.00%) Front End Web Developer (Client-Side Developer)
2 1 (50.00%) Full Stack Developer
2 1 (50.00%) Web Developer
Libraries, Frameworks & Software Standards
1 1 (50.00%) .NET
1 1 (50.00%) ASP.NET
1 1 (50.00%) CSS
1 1 (50.00%) HTML
Processes & Methodologies
1 2 (100.00%) Front End Development
1 2 (100.00%) Web Development
Programming Languages
1 2 (100.00%) C#
1 2 (100.00%) Clojure
1 2 (100.00%) Groovy
1 2 (100.00%) Jython
1 2 (100.00%) Kotlin
1 2 (100.00%) Scala
2 1 (50.00%) Java
2 1 (50.00%) JavaScript
Vendors
1 1 (50.00%) Microsoft