Period
to 23 October 2019

The following table provides summary statistics for contract job vacancies advertised in Central 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 23 October 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
London > Central London
6 months to
23 Oct 2019
Same period 2018 Same period 2017
Rank 112 112 115
Rank change year-on-year 0 +3 -58
Contract jobs citing Ruby 171 228 182
As % of all contract IT jobs advertised in Central London 2.26% 2.50% 2.23%
As % of the Programming Languages category 4.53% 4.68% 4.39%
Number of daily rates quoted 133 181 146
Central London median daily rate £550 £550 £538
Median daily rate % change year-on-year - +2.33% +7.50%
10th Percentile £431 £425 £413
90th Percentile £725 £650 £669
London median daily rate £550 £550 £524
% change year-on-year - +4.96% +4.80%
Number of hourly rates quoted 0 1 0
Central London median hourly rate - £13.00 -
London median hourly rate £26.50 £13.00 £40.00
% change year-on-year +103.85% -67.50% -

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 Central London with a requirement for coding skills.

All Programming Languages
Central London
Contract vacancies with a requirement for coding skills 3,776 4,870 4,150
As % of all contract IT jobs advertised in Central London 49.95% 53.43% 50.75%
Number of daily rates quoted 3,063 3,989 3,341
Central London median daily rate £525 £525 £505
Median daily rate % change year-on-year - +3.96% +7.33%
10th Percentile £375 £363 £360
90th Percentile £675 £675 £675
London median daily rate £525 £525 £500
% change year-on-year - +5.00% +8.70%
Number of hourly rates quoted 13 12 16
Central London median hourly rate £28.00 £29.55 £22.99
Median hourly rate % change year-on-year -5.23% +28.50% -16.39%
10th Percentile £21.00 £13.12 £13.33
90th Percentile £54.85 £60.47 £44.38
London median hourly rate £45.00 £39.00 £36.31
% change year-on-year +15.38% +7.41% +9.43%

Ruby
Job Vacancy Trend in Central London

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

Job vacancy trend for Ruby in Central London

Ruby
Contractor Daily Rate Trend in Central London

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

Contractor daily rate trend for Ruby in Central London

Ruby
Contractor Daily Rate Histogram in Central London

The daily rate distribution of IT jobs citing Ruby in Central London over the 6 months to 23 October 2019.

Contractor daily rate histogram for Ruby in Central London

Ruby
Contractor Hourly Rate Trend in Central London

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

Contractor hourly rate trend for Ruby in Central London

Ruby
Contract Job Locations in Central London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Ruby within the Central London region over the 6 months to 23 October 2019. 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
City of London +2 130 £550 - 85
City of Westminster +8 8 £500 +2.56% 1
Southwark +14 2 £508 -3.33%
Ruby
London

For the 6 months to 23 October 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 Central London region with a requirement for Ruby.

1 100 (58.48%) Python
2 98 (57.31%) Agile Software Development
3 73 (42.69%) Linux
4 67 (39.18%) Java
5 63 (36.84%) AWS
5 63 (36.84%) DevOps
6 49 (28.65%) JavaScript
7 46 (26.90%) Ruby on Rails
8 42 (24.56%) TDD
9 38 (22.22%) Continuous Integration
9 38 (22.22%) Go
10 37 (21.64%) Node.js
11 35 (20.47%) Docker
12 33 (19.30%) Kubernetes
13 31 (18.13%) Test Automation
14 30 (17.54%) Bash Shell
14 30 (17.54%) PostgreSQL
15 29 (16.96%) Git (software)
16 28 (16.37%) Finance
16 28 (16.37%) SQL
16 28 (16.37%) Continuous Delivery
16 28 (16.37%) Jenkins
17 27 (15.79%) Public Sector
17 27 (15.79%) Scrum
18 25 (14.62%) Puppet
18 25 (14.62%) Terraform
19 24 (14.04%) Opscode Chef
19 24 (14.04%) Microservices
20 23 (13.45%) Security Cleared
20 23 (13.45%) Web Services

Ruby
Co-occurring IT Skills in Central 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 16 (9.36%) Elasticsearch
2 10 (5.85%) Confluence
3 7 (4.09%) nginx
4 2 (1.17%) Apache
4 2 (1.17%) Apache Spark
4 2 (1.17%) JBoss
4 2 (1.17%) Jetty
4 2 (1.17%) OpenStack
4 2 (1.17%) Oracle Self-Service HR
4 2 (1.17%) Tomcat
4 2 (1.17%) WebLogic
5 1 (0.58%) Cloud Foundry
5 1 (0.58%) CMS
5 1 (0.58%) IIS
5 1 (0.58%) SharePoint
5 1 (0.58%) Sitecore CMS
Applications
1 2 (1.17%) Microsoft Excel
Cloud Services
1 63 (36.84%) AWS
2 13 (7.60%) Serverless
3 12 (7.02%) Azure
4 11 (6.43%) AWS Lambda
5 10 (5.85%) GCP
6 8 (4.68%) Datadog
6 8 (4.68%) Trello
6 8 (4.68%) Virtual Private Cloud
7 7 (4.09%) Amazon EC2
8 6 (3.51%) Amazon S3
9 4 (2.34%) AWS CloudFormation
10 3 (1.75%) Amazon ELB
10 3 (1.75%) Cloud Computing
10 3 (1.75%) CloudFront
10 3 (1.75%) GitHub
10 3 (1.75%) IaaS
10 3 (1.75%) OpenShift
10 3 (1.75%) PaaS
11 2 (1.17%) Heroku
12 1 (0.58%) Amazon SQS
Communications & Networking
1 10 (5.85%) Internet
2 8 (4.68%) Firewall
2 8 (4.68%) VPN
3 2 (1.17%) Network Security
3 2 (1.17%) SSH
4 1 (0.58%) DNS
4 1 (0.58%) HTTP
4 1 (0.58%) TCP/IP
Database & Business Intelligence
1 30 (17.54%) PostgreSQL
2 18 (10.53%) MongoDB
3 12 (7.02%) MySQL
4 11 (6.43%) NoSQL
5 9 (5.26%) Amazon DynamoDB
6 6 (3.51%) Amazon RDS
7 5 (2.92%) Redis
7 5 (2.92%) Relational Database
8 3 (1.75%) Hadoop
9 2 (1.17%) Data Mining
9 2 (1.17%) Data Warehouse
9 2 (1.17%) Oracle Database
9 2 (1.17%) RDBMS
9 2 (1.17%) SQL Server
10 1 (0.58%) Amazon Aurora
10 1 (0.58%) Big Data
10 1 (0.58%) SQL Server 2014
Development Applications
1 29 (16.96%) Git (software)
2 28 (16.37%) Jenkins
3 18 (10.53%) JIRA
4 9 (5.26%) Sonatype Nexus
5 8 (4.68%) CircleCI
6 6 (3.51%) Travis CI
7 5 (2.92%) Cucumber
8 4 (2.34%) Selenium
8 4 (2.34%) Subversion
9 3 (1.75%) Bitbucket
9 3 (1.75%) Vagrant
10 2 (1.17%) Ant
10 2 (1.17%) Atlassian Bamboo
10 2 (1.17%) FishEye
10 2 (1.17%) Gradle
10 2 (1.17%) Hudson
10 2 (1.17%) Leiningen
10 2 (1.17%) Maven
10 2 (1.17%) Mercurial
10 2 (1.17%) Poseidon for UML
General
1 28 (16.37%) Finance
2 27 (15.79%) Public Sector
3 5 (2.92%) Advertising
4 4 (2.34%) Banking
5 1 (0.58%) Automotive
5 1 (0.58%) Games
5 1 (0.58%) Law
5 1 (0.58%) Publishing
5 1 (0.58%) Telecoms
Job Titles
1 71 (41.52%) Developer
2 45 (26.32%) Ruby Developer
3 33 (19.30%) DevOps Engineer
4 19 (11.11%) Architect
5 11 (6.43%) AWS DevOps
6 9 (5.26%) Java Developer
6 9 (5.26%) Technical Architect
7 8 (4.68%) AWS Engineer
7 8 (4.68%) Python Developer
7 8 (4.68%) Ruby on Rails Developer
8 7 (4.09%) AWS DevOps Engineer
8 7 (4.09%) Cloud Engineer
8 7 (4.09%) Ruby Engineer
9 6 (3.51%) Consultant
9 6 (3.51%) Penetration Tester
9 6 (3.51%) Senior Developer
9 6 (3.51%) Software Engineer
9 6 (3.51%) Tester
10 5 (2.92%) Senior Software Engineer
10 5 (2.92%) Software Developer
Libraries, Frameworks & Software Standards
1 46 (26.90%) Ruby on Rails
2 37 (21.64%) Node.js
3 23 (13.45%) Web Services
4 22 (12.87%) JSON
5 17 (9.94%) HTML
6 15 (8.77%) CSS
7 13 (7.60%) RESTful
8 9 (5.26%) React
9 5 (2.92%) ActiveMQ
9 5 (2.92%) Spring
10 4 (2.34%) Express
10 4 (2.34%) HATEOAS
10 4 (2.34%) jQuery
10 4 (2.34%) JSON Schema
10 4 (2.34%) Kafka
10 4 (2.34%) OAuth
10 4 (2.34%) RabbitMQ
10 4 (2.34%) Swagger
11 3 (1.75%) Play Framework
11 3 (1.75%) Redux
Miscellaneous
1 14 (8.19%) Greenfield Project
2 7 (4.09%) User Experience
3 5 (2.92%) Mobile App
4 3 (1.75%) Analytical Skills
4 3 (1.75%) Enterprise Cloud
4 3 (1.75%) Public Cloud
5 2 (1.17%) Algorithms
5 2 (1.17%) Cyberthreat
5 2 (1.17%) Data Centre
5 2 (1.17%) Derivative
5 2 (1.17%) Enterprise Software
5 2 (1.17%) Hybrid Cloud
5 2 (1.17%) Mobile Banking
6 1 (0.58%) Blog
6 1 (0.58%) CMDB
6 1 (0.58%) iSeries
6 1 (0.58%) Mainframe
6 1 (0.58%) Management Information System
6 1 (0.58%) Replication
6 1 (0.58%) Security Operations Centre
Operating Systems
1 73 (42.69%) Linux
2 22 (12.87%) Red Hat Enterprise Linux
3 15 (8.77%) Ubuntu
4 14 (8.19%) Unix
4 14 (8.19%) Windows
5 10 (5.85%) Mac OS X
6 8 (4.68%) Debian
6 8 (4.68%) Windows Server
7 7 (4.09%) Mac OS
8 6 (3.51%) CentOS
8 6 (3.51%) openSUSE
9 2 (1.17%) Android
9 2 (1.17%) Apple iOS
10 1 (0.58%) CoreOS
10 1 (0.58%) FreeBSD
Processes & Methodologies
1 98 (57.31%) Agile Software Development
2 63 (36.84%) DevOps
3 42 (24.56%) TDD
4 38 (22.22%) Continuous Integration
5 31 (18.13%) Test Automation
6 28 (16.37%) Continuous Delivery
7 27 (15.79%) Scrum
8 24 (14.04%) Microservices
9 20 (11.70%) Configuration Management
10 18 (10.53%) Open Source
11 14 (8.19%) Migration
11 14 (8.19%) Software Engineering
12 13 (7.60%) ITIL
13 12 (7.02%) Front End Development
13 12 (7.02%) OWASP
14 10 (5.85%) Web Development
15 9 (5.26%) Infrastructure Automation
15 9 (5.26%) Kanban
15 9 (5.26%) OO
15 9 (5.26%) Stakeholder Engagement
Programming Languages
1 100 (58.48%) Python
2 67 (39.18%) Java
3 49 (28.65%) JavaScript
4 38 (22.22%) Go
5 30 (17.54%) Bash Shell
6 28 (16.37%) SQL
7 17 (9.94%) Perl
8 12 (7.02%) Scala
9 10 (5.85%) Groovy
9 10 (5.85%) PL/SQL
10 9 (5.26%) PHP
11 6 (3.51%) C#
11 6 (3.51%) TypeScript
12 3 (1.75%) C++
12 3 (1.75%) ES6
12 3 (1.75%) T-SQL
13 2 (1.17%) Clojure
13 2 (1.17%) R
13 2 (1.17%) Shell Script
13 2 (1.17%) VBA
Qualifications
1 23 (13.45%) Security Cleared
2 12 (7.02%) AWS Certification
3 10 (5.85%) SC Cleared
4 9 (5.26%) RHCE
5 3 (1.75%) Degree
5 3 (1.75%) DV Cleared
6 2 (1.17%) BPSS Clearance
6 2 (1.17%) CHECK Team Member
6 2 (1.17%) CTC Cleared
7 1 (0.58%) DBS Check
7 1 (0.58%) Master's Degree
Quality Assurance & Compliance
1 8 (4.68%) GDPR
1 8 (4.68%) ISO/IEC 27001
1 8 (4.68%) NIST
2 6 (3.51%) COBIT
2 6 (3.51%) PCI DSS
3 4 (2.34%) QA
3 4 (2.34%) WCAG
4 2 (1.17%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
4 2 (1.17%) SLA
System Software
1 35 (20.47%) Docker
2 3 (1.75%) Apache ZooKeeper
3 2 (1.17%) KVM
3 2 (1.17%) VMware Infrastructure
3 2 (1.17%) Xen
4 1 (0.58%) etcd
4 1 (0.58%) Varnish
Systems Management
1 33 (19.30%) Kubernetes
2 25 (14.62%) Puppet
2 25 (14.62%) Terraform
3 24 (14.04%) Opscode Chef
4 20 (11.70%) Ansible
5 9 (5.26%) Suricata
6 6 (3.51%) Docker Swarm
6 6 (3.51%) Nessus
6 6 (3.51%) Rancher
7 5 (2.92%) HP Fortify
8 3 (1.75%) Packer
8 3 (1.75%) Salt
9 2 (1.17%) Consul
9 2 (1.17%) Graphite
10 1 (0.58%) Grafana
10 1 (0.58%) Host Intrusion Detection System
10 1 (0.58%) Icinga
10 1 (0.58%) Matomo
10 1 (0.58%) Network Intrusion Detection System
10 1 (0.58%) Rundeck
Vendors
1 15 (8.77%) Red Hat
2 14 (8.19%) Qualys
3 10 (5.85%) Splunk
4 7 (4.09%) Oracle
4 7 (4.09%) SaltStack
4 7 (4.09%) ServiceNow
5 6 (3.51%) Adobe
6 5 (2.92%) Google
6 5 (2.92%) Salesforce.com
7 4 (2.34%) Microsoft
8 3 (1.75%) Cloudera
8 3 (1.75%) VMware
9 2 (1.17%) Hortonworks
9 2 (1.17%) Sybase
9 2 (1.17%) Tableau
10 1 (0.58%) EMC
10 1 (0.58%) IBM
10 1 (0.58%) NetApp
10 1 (0.58%) Sitecore
10 1 (0.58%) TOWER Software