Period
to 19 June 2019

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 6 months to 19 June 2019 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
Central London > City of London
6 months to
19 Jun 2019
Same period 2018 Same period 2017
Rank 125 82 114
Rank change year-on-year -43 +32 -41
Contract jobs citing Ruby 113 208 132
As % of all contract IT jobs advertised in the City of London 1.75% 3.02% 2.13%
As % of the Programming Languages category 3.51% 5.74% 4.25%
Number of daily rates quoted 95 166 107
City of London median daily rate £550 £525 £475
Median daily rate % change year-on-year +4.76% +10.53% -3.80%
10th Percentile £463 £425 £300
90th Percentile £725 £713 £595
Central London median daily rate £538 £525 £475
% change year-on-year +2.38% +10.53% -
Number of hourly rates quoted 0 3 0
City of London median hourly rate - £13.00 -
Central London median hourly rate £70.00 £13.00 -
% change year-on-year +438.46% - -

Ruby is in the Programming Languages category. The following 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 coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 3,220 3,626 3,103
As % of all contract IT jobs advertised in the City of London 49.98% 52.57% 50.01%
Number of daily rates quoted 2,617 3,052 2,517
City of London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +5.26%
10th Percentile £406 £363 £328
90th Percentile £675 £700 £659
Central London median daily rate £525 £525 £500
% change year-on-year - +5.00% +8.11%
Number of hourly rates quoted 22 21 7
City of London median hourly rate £28.75 £21.50 £28.35
Median hourly rate % change year-on-year +33.72% -24.15% +9.02%
10th Percentile £21.00 £12.75 £16.65
90th Percentile £56.50 £48.25 £39.70
Central London median hourly rate £35.00 £21.50 £28.35
% change year-on-year +62.79% -24.15% +9.02%

Ruby
Job Vacancy Trend in the City of London

Job postings citing Ruby as a percentage of all IT jobs advertised in the City of London.

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 6 months to 19 June 2019.

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 19 June 2019, IT contractor jobs citing Ruby also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Ruby.

1 56 (49.56%) Agile Software Development
2 54 (47.79%) Python
3 40 (35.40%) Linux
4 39 (34.51%) DevOps
5 33 (29.20%) JavaScript
5 33 (29.20%) Ruby on Rails
6 31 (27.43%) Amazon AWS
6 31 (27.43%) Docker
7 30 (26.55%) TDD
8 29 (25.66%) Java
9 25 (22.12%) SQL
10 22 (19.47%) PostgreSQL
10 22 (19.47%) Continuous Integration
10 22 (19.47%) Kubernetes
11 21 (18.58%) Git (software)
11 21 (18.58%) Ansible
12 19 (16.81%) Node.js
12 19 (16.81%) HTML
13 18 (15.93%) CSS
13 18 (15.93%) Jenkins
13 18 (15.93%) Puppet
14 17 (15.04%) Terraform
15 16 (14.16%) Microservices
15 16 (14.16%) Go
16 15 (13.27%) Bash Shell
16 15 (13.27%) nginx
16 15 (13.27%) Web Development
17 14 (12.39%) Test Automation
18 13 (11.50%) Open Source
18 13 (11.50%) Microsoft Azure

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 (13.27%) nginx
2 8 (7.08%) Apache
2 8 (7.08%) Elasticsearch
3 6 (5.31%) Confluence
4 5 (4.42%) Cloud Foundry
4 5 (4.42%) Tomcat
5 3 (2.65%) IIS
6 2 (1.77%) CMS
7 1 (0.88%) Adobe Experience Manager
7 1 (0.88%) Apache Pig
7 1 (0.88%) Apache Solr
7 1 (0.88%) JBoss
7 1 (0.88%) Jetty
7 1 (0.88%) Mongrel
7 1 (0.88%) OpenStack
7 1 (0.88%) Sitecore CMS
7 1 (0.88%) WebLogic
7 1 (0.88%) WebSphere
7 1 (0.88%) WordPress
Cloud Services
1 31 (27.43%) Amazon AWS
2 13 (11.50%) Microsoft Azure
3 9 (7.96%) GitHub
4 5 (4.42%) OpenShift
4 5 (4.42%) Trello
5 4 (3.54%) AWS CloudFormation
5 4 (3.54%) Google Cloud Platform
6 3 (2.65%) IaaS
6 3 (2.65%) Slack
7 2 (1.77%) Amazon EC2
7 2 (1.77%) Amazon ECS
7 2 (1.77%) Amazon S3
7 2 (1.77%) Apigee
7 2 (1.77%) Cloud Computing
7 2 (1.77%) Quay.io
7 2 (1.77%) Serverless
8 1 (0.88%) Amazon CloudWatch
8 1 (0.88%) Amazon EKS
8 1 (0.88%) AWS Fargate
8 1 (0.88%) CloudBees
Communications & Networking
1 2 (1.77%) HTTP
1 2 (1.77%) Internet
2 1 (0.88%) DNS
2 1 (0.88%) Firewall
2 1 (0.88%) SSL
2 1 (0.88%) TCP/IP
Database & Business Intelligence
1 22 (19.47%) PostgreSQL
2 12 (10.62%) NoSQL
3 11 (9.73%) MongoDB
4 5 (4.42%) Redis
5 4 (3.54%) MySQL
6 3 (2.65%) Amazon DynamoDB
7 2 (1.77%) Apache Cassandra
7 2 (1.77%) SQL Server
8 1 (0.88%) Amazon Athena
8 1 (0.88%) Amazon RDS
8 1 (0.88%) Amazon Redshift
8 1 (0.88%) Apache Hive
8 1 (0.88%) Apache Kudu
8 1 (0.88%) Big Data
8 1 (0.88%) Blockchain
8 1 (0.88%) Data Warehouse
8 1 (0.88%) Hadoop
8 1 (0.88%) HBase
8 1 (0.88%) RDBMS
8 1 (0.88%) Relational Database
Development Applications
1 21 (18.58%) Git (software)
2 18 (15.93%) Jenkins
3 7 (6.19%) JIRA
4 6 (5.31%) git-flow
5 5 (4.42%) Ant
6 4 (3.54%) Bundler
6 4 (3.54%) Cucumber
6 4 (3.54%) RubyGems
6 4 (3.54%) Selenium
7 3 (2.65%) Artifactory
7 3 (2.65%) GitLab
7 3 (2.65%) Subversion
7 3 (2.65%) TeamCity
7 3 (2.65%) Vagrant
8 2 (1.77%) CF BOSH
8 2 (1.77%) GoCD
8 2 (1.77%) JMeter
8 2 (1.77%) Maven
9 1 (0.88%) Bitbucket Server
9 1 (0.88%) Spinnaker
General
1 11 (9.73%) Finance
2 3 (2.65%) Banking
3 2 (1.77%) Retail
4 1 (0.88%) Advertising
4 1 (0.88%) Games
4 1 (0.88%) Law
Job Titles
1 46 (40.71%) Developer
2 32 (28.32%) Ruby Developer
3 19 (16.81%) Architect
4 18 (15.93%) DevOps Engineer
5 9 (7.96%) Technical Architect
6 8 (7.08%) AWS DevOps
7 7 (6.19%) Penetration Tester
7 7 (6.19%) Senior Developer
7 7 (6.19%) Tester
8 6 (5.31%) Senior DevOps
9 5 (4.42%) Linux/Unix DevOps
9 5 (4.42%) Ruby on Rails Developer
9 5 (4.42%) Senior Architect
9 5 (4.42%) Senior DevOps Engineer
9 5 (4.42%) Senior Ruby Developer
10 4 (3.54%) Senior Technical Architect
11 3 (2.65%) DevOps Architect
11 3 (2.65%) Java Developer
11 3 (2.65%) Java Engineer
11 3 (2.65%) Linux Engineer
Libraries, Frameworks & Software Standards
1 33 (29.20%) Ruby on Rails
2 19 (16.81%) HTML
2 19 (16.81%) Node.js
3 18 (15.93%) CSS
4 12 (10.62%) React
5 10 (8.85%) RESTful
5 10 (8.85%) Spring
6 9 (7.96%) JSON
7 8 (7.08%) Web Services
8 7 (6.19%) AngularJS
9 6 (5.31%) .NET
10 4 (3.54%) HATEOAS
10 4 (3.54%) JSON Schema
10 4 (3.54%) OAuth
10 4 (3.54%) Play Framework
10 4 (3.54%) RabbitMQ
10 4 (3.54%) SOAP
10 4 (3.54%) Swagger
11 3 (2.65%) Elastic Stack
11 3 (2.65%) Sensu
Miscellaneous
1 13 (11.50%) Greenfield Project
2 4 (3.54%) Data Centre
3 2 (1.77%) Cloud Native
3 2 (1.77%) Enterprise Software
3 2 (1.77%) PKI
4 1 (0.88%) Analytical Skills
4 1 (0.88%) Embedded Systems
4 1 (0.88%) Enterprise Cloud
4 1 (0.88%) Linux Command Line
4 1 (0.88%) Public Cloud
4 1 (0.88%) Self-Motivation
4 1 (0.88%) Smart Meter
4 1 (0.88%) Smartphone
4 1 (0.88%) User Experience
Operating Systems
1 40 (35.40%) Linux
2 9 (7.96%) Red Hat Enterprise Linux
2 9 (7.96%) Ubuntu
2 9 (7.96%) Unix
3 8 (7.08%) Windows
4 6 (5.31%) CentOS
5 4 (3.54%) Mac OS X
6 2 (1.77%) CoreOS
6 2 (1.77%) Debian
6 2 (1.77%) Windows Server
7 1 (0.88%) Amazon Linux
7 1 (0.88%) Fedora
7 1 (0.88%) FreeBSD
7 1 (0.88%) openSUSE
Processes & Methodologies
1 56 (49.56%) Agile Software Development
2 39 (34.51%) DevOps
3 30 (26.55%) TDD
4 22 (19.47%) Continuous Integration
5 16 (14.16%) Microservices
6 15 (13.27%) Web Development
7 14 (12.39%) Test Automation
8 13 (11.50%) Open Source
8 13 (11.50%) Scrum
9 12 (10.62%) Mentoring
10 11 (9.73%) Configuration Management
11 9 (7.96%) Continuous Delivery
12 8 (7.08%) E-Commerce
12 8 (7.08%) Fintech
12 8 (7.08%) Front End Development
12 8 (7.08%) Migration
12 8 (7.08%) Penetration Testing
13 7 (6.19%) OWASP
14 6 (5.31%) BDD
14 6 (5.31%) Security Testing
Programming Languages
1 54 (47.79%) Python
2 33 (29.20%) JavaScript
3 29 (25.66%) Java
4 25 (22.12%) SQL
5 16 (14.16%) Go
6 15 (13.27%) Bash Shell
7 10 (8.85%) PHP
8 8 (7.08%) Scala
9 6 (5.31%) Perl
9 6 (5.31%) PowerShell
10 4 (3.54%) C#
10 4 (3.54%) Groovy
11 3 (2.65%) Shell Script
12 2 (1.77%) C++
12 2 (1.77%) PL/SQL
12 2 (1.77%) TypeScript
13 1 (0.88%) CoffeeScript
13 1 (0.88%) ES6
13 1 (0.88%) Haskell
13 1 (0.88%) Java 8
Qualifications
1 13 (11.50%) Security Cleared
2 11 (9.73%) SC Cleared
3 3 (2.65%) CHECK Team Member
3 3 (2.65%) DV Cleared
4 2 (1.77%) BPSS Clearance
4 2 (1.77%) Computer Science Degree
4 2 (1.77%) Degree
5 1 (0.88%) AWS Certification
5 1 (0.88%) CTC Cleared
5 1 (0.88%) DBS Check
Quality Assurance & Compliance
1 1 (0.88%) COBIT
1 1 (0.88%) ISO/IEC 27001
1 1 (0.88%) NIST
1 1 (0.88%) QA
System Software
1 31 (27.43%) Docker
2 3 (2.65%) etcd
2 3 (2.65%) Varnish
2 3 (2.65%) VMware Infrastructure
3 2 (1.77%) Active Directory
3 2 (1.77%) Ceph
3 2 (1.77%) flannel
3 2 (1.77%) GlusterFS
3 2 (1.77%) SkyDNS
4 1 (0.88%) Apache Flume
4 1 (0.88%) HDFS
4 1 (0.88%) KVM
4 1 (0.88%) VirtualBox
4 1 (0.88%) Xen
Systems Management
1 22 (19.47%) Kubernetes
2 21 (18.58%) Ansible
3 18 (15.93%) Puppet
4 17 (15.04%) Terraform
5 8 (7.08%) Opscode Chef
6 7 (6.19%) Packer
7 6 (5.31%) Grafana
8 5 (4.42%) Graphite
8 5 (4.42%) HAProxy
8 5 (4.42%) Prometheus
9 4 (3.54%) Consul
10 3 (2.65%) Kibana
11 2 (1.77%) collectd
11 2 (1.77%) Fluentd
11 2 (1.77%) Host Intrusion Detection System
11 2 (1.77%) Mesos
11 2 (1.77%) Network Intrusion Detection System
11 2 (1.77%) rkt
11 2 (1.77%) Rundeck
11 2 (1.77%) Sysdig
Vendors
1 4 (3.54%) Red Hat
2 3 (2.65%) Adobe
2 3 (2.65%) Google
2 3 (2.65%) Microsoft
2 3 (2.65%) VMware
3 2 (1.77%) PagerDuty
3 2 (1.77%) Perforce
3 2 (1.77%) SaltStack
4 1 (0.88%) BT
4 1 (0.88%) Cisco
4 1 (0.88%) hybris
4 1 (0.88%) Okta
4 1 (0.88%) Oracle
4 1 (0.88%) Qualys
4 1 (0.88%) Rackspace
4 1 (0.88%) Salesforce.com
4 1 (0.88%) Samsung
4 1 (0.88%) Sitecore
4 1 (0.88%) Splunk
4 1 (0.88%) webMethods