The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Ruby skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Ruby over the 3 months to 24 June 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.

Ruby
London / City of London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 100 43 104
Rank change year-on-year -57 +61  
Contract jobs citing Ruby 66 155 111
As % of all contract IT jobs advertised in the City of London 2.02% 4.58% 1.91%
As % of the Programming Languages category 3.91% 9.43% 4.46%
Number of daily rates quoted 49 131 86
Median daily rate £475 £500 £470
Median daily rate % change year-on-year -5.00% +6.38%  
90% offered a daily rate of more than £386 £425 £350
10% offered a daily rate of more than £600 £625 £600
UK excluding London median daily rate £463 £450 £400
% change year-on-year +2.88% +12.50%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - £10.00 £40.00
% change year-on-year - -75.00%  

Ruby is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for programming language skills.

Contract Programming Language Skills
City of London
Contract job vacancies with a requirement for programming language skills 1686 1643 2490
As % of all contract IT job vacancies advertised in the City of London 51.62% 48.57% 42.78%
Number of daily rates quoted 1355 1406 2053
Median daily rate £513 £475 £463
Median daily rate % change year-on-year +7.89% +2.70%  
90% offered a daily rate of more than £375 £325 £320
10% offered a daily rate of more than £650 £625 £625
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 4 4 22
Median hourly rate £21.50 £53.00 £24.23
Median hourly rate % change year-on-year -59.43% +118.73%  
90% offered a hourly rate of more than £16.25 £19.00 £19.72
10% offered a hourly rate of more than £31.25 £80.00 £54.00
UK excluding London median hourly rate £42.50 £37.50 £36.50
% change year-on-year +13.33% +2.73%  

Ruby
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Ruby as a proportion of all contract or permanent IT jobs with a match in the Programming Languages category.

Job vacancy trend for Ruby in the City of London

Ruby
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for Ruby in the City of London

Ruby
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Ruby in the City of London over the 3 months to 24 June 2017.

Contractor daily rate histogram for Ruby in the City of London

Ruby
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Ruby in the City of London.

Contractor hourly rate trend for Ruby in the City of London

For the 6 months to 24 June 2017, IT contractor jobs citing Ruby 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 City of London region with a requirement for Ruby.

1 78 (59.54%) Python
2 54 (41.22%) Linux
2 54 (41.22%) Java
2 54 (41.22%) Agile Software Development
3 48 (36.64%) DevOps
4 43 (32.82%) Amazon AWS
5 36 (27.48%) Bash Shell
6 35 (26.72%) Puppet
6 35 (26.72%) Git (software)
7 30 (22.90%) Perl
8 29 (22.14%) JavaScript
8 29 (22.14%) Finance
8 29 (22.14%) Jenkins
8 29 (22.14%) Ansible
9 28 (21.37%) Continuous Integration
10 25 (19.08%) MySQL
11 23 (17.56%) Docker
12 22 (16.79%) SQL
13 21 (16.03%) TDD
14 19 (14.50%) Ruby on Rails
14 19 (14.50%) C#
15 18 (13.74%) HTML
15 18 (13.74%) Test Automation
15 18 (13.74%) Opscode Chef
16 17 (12.98%) CSS
17 16 (12.21%) E-Commerce
18 15 (11.45%) CentOS
18 15 (11.45%) Banking
18 15 (11.45%) Tomcat
18 15 (11.45%) Terraform

Ruby
Co-occurring IT Skills in the City of 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 15 (11.45%) Tomcat
2 13 (9.92%) nginx
3 11 (8.40%) Elasticsearch
4 8 (6.11%) Apache
5 7 (5.34%) Confluence
6 6 (4.58%) IIS
7 5 (3.82%) OpenStack
8 4 (3.05%) JBoss
8 4 (3.05%) Jetty
9 2 (1.53%) Apache Pig
10 1 (0.76%) Apache Spark
10 1 (0.76%) Cloud Foundry
10 1 (0.76%) CloudStack
10 1 (0.76%) WordPress
Applications
1 4 (3.05%) Microsoft Office
2 1 (0.76%) Photoshop
2 1 (0.76%) Spreadsheet
Business Applications
1 3 (2.29%) SunGard GMI
2 2 (1.53%) Magento
Cloud Services
1 43 (32.82%) Amazon AWS
2 10 (7.63%) AWS CloudFormation
3 8 (6.11%) Microsoft Azure
4 7 (5.34%) GitHub
5 6 (4.58%) Cloud Computing
6 4 (3.05%) Akamai
6 4 (3.05%) Amazon EC2
6 4 (3.05%) Amazon S3
6 4 (3.05%) SaaS
7 3 (2.29%) Heroku
7 3 (2.29%) IaaS
8 2 (1.53%) AWS Lambda
8 2 (1.53%) BrowserStack
8 2 (1.53%) OpenShift
8 2 (1.53%) PaaS
9 1 (0.76%) Amazon SQS
9 1 (0.76%) Google Cloud Platform
9 1 (0.76%) Google Compute Engine
9 1 (0.76%) Google Play
9 1 (0.76%) MailChimp
Communications & Networking
1 10 (7.63%) TCP/IP
2 8 (6.11%) SSL
3 7 (5.34%) DNS
3 7 (5.34%) Firewall
3 7 (5.34%) HTTP
4 3 (2.29%) Internet
4 3 (2.29%) SAN
5 2 (1.53%) HTTPS
5 2 (1.53%) LDAP
5 2 (1.53%) SSH
5 2 (1.53%) Wi-Fi
6 1 (0.76%) IPsec
6 1 (0.76%) NAS
6 1 (0.76%) Network Security
Database & Business Intelligence
1 25 (19.08%) MySQL
2 14 (10.69%) SQL Server
3 12 (9.16%) PostgreSQL
4 11 (8.40%) MongoDB
5 5 (3.82%) Big Data
5 5 (3.82%) MariaDB
6 4 (3.05%) Hadoop
6 4 (3.05%) NoSQL
6 4 (3.05%) Redis
6 4 (3.05%) SQL Server Integration Services
7 3 (2.29%) Apache Hive
7 3 (2.29%) SQL Server Reporting Services
8 2 (1.53%) Amazon Redshift
8 2 (1.53%) Apache Cassandra
8 2 (1.53%) CouchDB
8 2 (1.53%) Data Warehouse
9 1 (0.76%) HBase
9 1 (0.76%) InfluxDB
9 1 (0.76%) RDBMS
9 1 (0.76%) Riak
Development Applications
1 35 (26.72%) Git (software)
2 29 (22.14%) Jenkins
3 14 (10.69%) JIRA
4 12 (9.16%) Cucumber
5 8 (6.11%) Appium
5 8 (6.11%) Subversion
6 7 (5.34%) Calabash
7 5 (3.82%) Selenium
7 5 (3.82%) TeamCity
7 5 (3.82%) Vagrant
8 3 (2.29%) gulp
8 3 (2.29%) Hudson
8 3 (2.29%) JBehave
8 3 (2.29%) JMeter
8 3 (2.29%) JUnit
8 3 (2.29%) Maven
8 3 (2.29%) RSpec
8 3 (2.29%) SpecFlow
8 3 (2.29%) Visual Studio
8 3 (2.29%) Xcode
General
1 29 (22.14%) Finance
2 15 (11.45%) Banking
3 7 (5.34%) Retail
4 5 (3.82%) Front Office
5 4 (3.05%) Back Office
5 4 (3.05%) Investment Banking
5 4 (3.05%) Marketing
5 4 (3.05%) Telecoms
6 3 (2.29%) Retail Banking
7 2 (1.53%) Digital Economy
7 2 (1.53%) Financial Institution
7 2 (1.53%) Games
8 1 (0.76%) Publishing
Job Titles
1 42 (32.06%) Developer
2 39 (29.77%) DevOps Engineer
3 16 (12.21%) Ruby Developer
4 10 (7.63%) Linux Engineer
5 7 (5.34%) Analyst
6 6 (4.58%) DBA
6 6 (4.58%) Linux DevOps Engineer
6 6 (4.58%) Linux/Unix DevOps
6 6 (4.58%) Ruby Engineer
7 5 (3.82%) Administrator
7 5 (3.82%) AWS Developer
7 5 (3.82%) Programmer
7 5 (3.82%) Python Developer
7 5 (3.82%) Software Engineer
7 5 (3.82%) Test Engineer
8 4 (3.05%) Analyst Programmer
8 4 (3.05%) Java Analyst Programmer
8 4 (3.05%) Java Programmer
8 4 (3.05%) Software Test Engineer
8 4 (3.05%) Systems Engineer
Libraries, Frameworks & Software Standards
1 19 (14.50%) Ruby on Rails
2 18 (13.74%) HTML
3 17 (12.98%) CSS
4 14 (10.69%) .NET
5 12 (9.16%) Node.js
6 10 (7.63%) HTML5
6 10 (7.63%) LAMP
6 10 (7.63%) REST
7 9 (6.87%) AngularJS
7 9 (6.87%) jQuery
8 8 (6.11%) XML
9 7 (5.34%) Elastic Stack
9 7 (5.34%) LAPP Stack
9 7 (5.34%) Sensu
10 6 (4.58%) CSS3
10 6 (4.58%) LEMP Stack
10 6 (4.58%) React
10 6 (4.58%) Servlets
11 5 (3.82%) SOAP
11 5 (3.82%) Web Services
Miscellaneous
1 8 (6.11%) Computer Science
2 6 (4.58%) Clustering
2 6 (4.58%) Greenfield Project
3 5 (3.82%) Analytical Skills
3 5 (3.82%) User Experience
4 4 (3.05%) Data Structures
5 3 (2.29%) Data Centre
5 3 (2.29%) Equities
5 3 (2.29%) Fixed Income
5 3 (2.29%) Foreign Exchange (FX)
6 2 (1.53%) Algorithms
6 2 (1.53%) CMDB
6 2 (1.53%) Fintech
6 2 (1.53%) Hedge funds
6 2 (1.53%) Mobile App
7 1 (0.76%) Enterprise Cloud
7 1 (0.76%) FMCG
7 1 (0.76%) Linux Command Line
7 1 (0.76%) Public Cloud
7 1 (0.76%) Social Gaming
Operating Systems
1 54 (41.22%) Linux
2 15 (11.45%) CentOS
3 14 (10.69%) Ubuntu
4 13 (9.92%) Unix
5 10 (7.63%) Apple iOS
6 8 (6.11%) Android
6 8 (6.11%) Red Hat Enterprise Linux
6 8 (6.11%) Windows
7 3 (2.29%) Mac OS
8 1 (0.76%) CoreOS
8 1 (0.76%) RancherOS
8 1 (0.76%) Solaris
8 1 (0.76%) SUSE
8 1 (0.76%) SUSE Linux Enterprise Server
Processes & Methodologies
1 54 (41.22%) Agile Software Development
2 48 (36.64%) DevOps
3 28 (21.37%) Continuous Integration
4 21 (16.03%) TDD
5 18 (13.74%) Test Automation
6 16 (12.21%) E-Commerce
7 14 (10.69%) Continuous Delivery
8 13 (9.92%) BDD
9 12 (9.16%) Open Source
9 12 (9.16%) Performance Tuning
10 11 (8.40%) Performance Monitoring
11 10 (7.63%) Web Development
12 9 (6.87%) Load Balancing
12 9 (6.87%) Software Engineering
13 8 (6.11%) Analytics
13 8 (6.11%) Microservices
14 7 (5.34%) Configuration Management
14 7 (5.34%) MVC
14 7 (5.34%) Unit Testing
14 7 (5.34%) Web Operations
Programming Languages
1 78 (59.54%) Python
2 54 (41.22%) Java
3 36 (27.48%) Bash Shell
4 30 (22.90%) Perl
5 29 (22.14%) JavaScript
6 22 (16.79%) SQL
7 19 (14.50%) C#
8 11 (8.40%) Shell Script
9 8 (6.11%) PHP
9 8 (6.11%) PowerShell
10 7 (5.34%) Go
11 6 (4.58%) C
12 4 (3.05%) C++
12 4 (3.05%) Scala
12 4 (3.05%) VB
13 3 (2.29%) Clojure
13 3 (2.29%) T-SQL
14 2 (1.53%) Apple Swift
14 2 (1.53%) Objective-C
15 1 (0.76%) Korn
Qualifications
1 13 (9.92%) Degree
2 8 (6.11%) Computer Science Degree
3 4 (3.05%) Security Cleared
4 2 (1.53%) CEH
4 2 (1.53%) CISSP
4 2 (1.53%) GIAC
4 2 (1.53%) SC Cleared
5 1 (0.76%) CHECK Team Member
5 1 (0.76%) CISMP
5 1 (0.76%) CREST Certified
5 1 (0.76%) PRINCE2 Certification
5 1 (0.76%) SANS
Quality Assurance & Compliance
1 6 (4.58%) QA
2 3 (2.29%) EMIR
2 3 (2.29%) MiFID
3 1 (0.76%) ISO/IEC 27001
3 1 (0.76%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
3 1 (0.76%) PCI DSS
3 1 (0.76%) SLA
System Software
1 23 (17.56%) Docker
2 5 (3.82%) VMware Infrastructure
3 3 (2.29%) Shibboleth
4 2 (1.53%) HDFS
5 1 (0.76%) etcd
5 1 (0.76%) flannel
5 1 (0.76%) GFS2
5 1 (0.76%) GlusterFS
5 1 (0.76%) NFS
5 1 (0.76%) OCFS2
5 1 (0.76%) Samba
5 1 (0.76%) vSphere
5 1 (0.76%) Xen
5 1 (0.76%) XenServer
Systems Management
1 35 (26.72%) Puppet
2 29 (22.14%) Ansible
3 18 (13.74%) Opscode Chef
4 15 (11.45%) Terraform
5 14 (10.69%) Kubernetes
6 11 (8.40%) logstash
7 9 (6.87%) Graphite
8 7 (5.34%) Nagios
9 6 (4.58%) HAProxy
10 5 (3.82%) Mesos
11 4 (3.05%) Cobbler
11 4 (3.05%) Packer
11 4 (3.05%) Red Hat Spacewalk
12 3 (2.29%) Galera Cluster
12 3 (2.29%) Kibana
12 3 (2.29%) Marathon
13 2 (1.53%) Grafana
13 2 (1.53%) Rundeck
14 1 (0.76%) Host Intrusion Detection System
14 1 (0.76%) Network Intrusion Detection System
Vendors
1 9 (6.87%) VMware
2 6 (4.58%) Splunk
3 5 (3.82%) Sybase
4 4 (3.05%) Google
4 4 (3.05%) Infragistics
4 4 (3.05%) Perforce
4 4 (3.05%) Red Hat
4 4 (3.05%) webMethods
5 3 (2.29%) Cisco
5 3 (2.29%) F5
5 3 (2.29%) SunGard
6 2 (1.53%) EMC
7 1 (0.76%) Apple
7 1 (0.76%) Facebook
7 1 (0.76%) Hortonworks
7 1 (0.76%) Microsoft
7 1 (0.76%) NetApp
7 1 (0.76%) Oracle
7 1 (0.76%) ServiceNow
7 1 (0.76%) Twitter
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Rate: £400 - £450 per day
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