Period
to 15 October 2021

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 15 October 2021 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
15 Oct 2021
Same period 2020 Same period 2019
Rank 138 98 109
Rank change year-on-year -40 +11 -12
Contract jobs citing Ruby 35 26 134
As % of all contract jobs advertised in the City of London 0.91% 1.46% 2.24%
As % of the Programming Languages category 1.90% 3.00% 4.50%
Number of daily rates quoted 31 23 121
10th Percentile £425 £385 £431
25th Percentile £481 £436 £500
Median daily rate (50th Percentile) £525 £525 £550
Median % change year-on-year - -4.55% -
75th Percentile £613 £614 £656
90th Percentile £688 £638 £775
Central London median daily rate £525 £550 £550
% change year-on-year -4.55% - +1.85%

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 1,842 868 2,980
As % of all contract IT jobs advertised in the City of London 47.91% 48.71% 49.86%
Number of daily rates quoted 1,458 661 2,445
10th Percentile £413 £363 £400
25th Percentile £500 £431 £463
Median daily rate (50th Percentile) £600 £525 £525
Median % change year-on-year +14.29% - -
75th Percentile £688 £625 £625
90th Percentile £775 £693 £688
Central London median daily rate £600 £525 £525
% change year-on-year +14.29% - -
Number of hourly rates quoted 10 8 12
10th Percentile £26.15 £12.75 "
25th Percentile £32.00 £19.69 £21.00
Median hourly rate £36.50 £28.75 £21.92
Median % change year-on-year +26.96% +31.19% -0.39%
75th Percentile £61.56 £37.56 £49.66
90th Percentile £67.98 £39.48 £55.08
Central London median hourly rate £36.50 £28.75 £22.33
% change year-on-year +26.96% +28.75% +1.50%

Ruby
Job Vacancy Trend in the City of London

Job postings citing Ruby as a proportion 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

3-month moving average daily rate quoted in jobs citing Ruby in the City of London.

Daily rate trend for Ruby in the City of London

Ruby
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Ruby in the City of London over the 6 months to 15 October 2021.

Daily rate histogram for Ruby in the City of London

Ruby
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing Ruby in the City of London.

Hourly rate trend for Ruby in the City of London

For the 6 months to 15 October 2021, 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 14 (40.00%) Agile Software Development
1 14 (40.00%) Ruby on Rails
2 13 (37.14%) Python
3 11 (31.43%) JavaScript
4 10 (28.57%) Java
5 9 (25.71%) Docker
5 9 (25.71%) Microservices
5 9 (25.71%) Terraform
6 8 (22.86%) Kubernetes
6 8 (22.86%) Full Stack Development
6 8 (22.86%) Go
6 8 (22.86%) Git (software)
6 8 (22.86%) AWS
6 8 (22.86%) TDD
7 7 (20.00%) HTML
7 7 (20.00%) PHP
7 7 (20.00%) CSS
7 7 (20.00%) Jenkins
7 7 (20.00%) Social Skills
7 7 (20.00%) React
8 6 (17.14%) DevOps
8 6 (17.14%) Scala
8 6 (17.14%) Configuration Management
8 6 (17.14%) Continuous Integration
9 5 (14.29%) Azure
9 5 (14.29%) RESTful
9 5 (14.29%) BDD
9 5 (14.29%) GitHub
9 5 (14.29%) Greenfield Project
10 4 (11.43%) Rust

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 4 (11.43%) CMS
2 3 (8.57%) Drupal
3 2 (5.71%) OpenStack
4 1 (2.86%) Confluence
4 1 (2.86%) GeoServer
4 1 (2.86%) Mule
4 1 (2.86%) WordPress
Cloud Services
1 8 (22.86%) AWS
2 5 (14.29%) Azure
2 5 (14.29%) GitHub
3 3 (8.57%) GCP
3 3 (8.57%) Heroku
3 3 (8.57%) SaaS
4 2 (5.71%) AWS Step Functions
4 2 (5.71%) PaaS
4 2 (5.71%) Serverless
5 1 (2.86%) Amazon ECS
5 1 (2.86%) Amplience
5 1 (2.86%) AppsFlyer
5 1 (2.86%) AWS CloudFormation
5 1 (2.86%) AWS Fargate
5 1 (2.86%) AWS Lambda
5 1 (2.86%) BrowserStack
5 1 (2.86%) Cloud Computing
5 1 (2.86%) IaaS
5 1 (2.86%) OpenShift
5 1 (2.86%) Sauce Labs
Communications & Networking
1 1 (2.86%) DNS
1 1 (2.86%) HTTP
1 1 (2.86%) SAN
1 1 (2.86%) TCP/IP
Database & Business Intelligence
1 4 (11.43%) MySQL
2 3 (8.57%) MongoDB
2 3 (8.57%) PostgreSQL
3 2 (5.71%) NoSQL
4 1 (2.86%) Big Data
4 1 (2.86%) Oracle Database
4 1 (2.86%) Relational Database
Development Applications
1 8 (22.86%) Git (software)
2 7 (20.00%) Jenkins
3 3 (8.57%) RSpec
4 2 (5.71%) Bitbucket
5 1 (2.86%) Appium
5 1 (2.86%) Bitbucket Server
5 1 (2.86%) CircleCI
5 1 (2.86%) Cucumber
5 1 (2.86%) Cypress.io
5 1 (2.86%) JIRA
5 1 (2.86%) minitest
5 1 (2.86%) Postman
5 1 (2.86%) REST Assured
5 1 (2.86%) Selenium
5 1 (2.86%) SpecFlow
5 1 (2.86%) Vagrant
General
1 7 (20.00%) Social Skills
2 4 (11.43%) Public Sector
3 3 (8.57%) Analytical Skills
4 2 (5.71%) Finance
5 1 (2.86%) Advertising
5 1 (2.86%) Banking
5 1 (2.86%) Law
5 1 (2.86%) Marketing
5 1 (2.86%) Retail
Job Titles
1 21 (60.00%) Developer
2 12 (34.29%) Ruby Developer
3 5 (14.29%) Full Stack Developer
4 4 (11.43%) DevOps Engineer
5 3 (8.57%) Drupal Developer
5 3 (8.57%) Java Developer
5 3 (8.57%) Ruby on Rails Developer
6 2 (5.71%) Data Engineer
7 1 (2.86%) Automation Test Lead
7 1 (2.86%) Consultant
7 1 (2.86%) Product Manager
7 1 (2.86%) Senior DevOps
7 1 (2.86%) Senior DevOps Engineer
7 1 (2.86%) Senior Ruby Developer
7 1 (2.86%) Senior Software Engineer
7 1 (2.86%) Site Engineer
7 1 (2.86%) Site Reliability Engineer
7 1 (2.86%) Test Automation Consultant
7 1 (2.86%) Test Consultant
7 1 (2.86%) VMware Engineer
Libraries, Frameworks & Software Standards
1 14 (40.00%) Ruby on Rails
2 7 (20.00%) CSS
2 7 (20.00%) HTML
2 7 (20.00%) React
3 5 (14.29%) RESTful
4 4 (11.43%) Spring
5 3 (8.57%) .NET
5 3 (8.57%) AngularJS
5 3 (8.57%) Web Services
6 2 (5.71%) Hibernate
6 2 (5.71%) HTML5
6 2 (5.71%) Node.js
6 2 (5.71%) RabbitMQ
7 1 (2.86%) CSS3
7 1 (2.86%) JSON
7 1 (2.86%) PostGIS
7 1 (2.86%) React Native
7 1 (2.86%) Redux
7 1 (2.86%) Spring Boot
7 1 (2.86%) WebdriverIO
Miscellaneous
1 5 (14.29%) Greenfield Project
2 2 (5.71%) Linux Command Line
2 2 (5.71%) Public Cloud
2 2 (5.71%) Social Media
3 1 (2.86%) Mobile App
3 1 (2.86%) User Experience
Operating Systems
1 4 (11.43%) Linux
2 2 (5.71%) Ubuntu
3 1 (2.86%) Apple iOS
3 1 (2.86%) Red Hat Enterprise Linux
Processes & Methodologies
1 14 (40.00%) Agile Software Development
2 9 (25.71%) Microservices
3 8 (22.86%) Full Stack Development
3 8 (22.86%) TDD
4 6 (17.14%) Configuration Management
4 6 (17.14%) Continuous Integration
4 6 (17.14%) DevOps
5 5 (14.29%) BDD
6 4 (11.43%) Problem-Solving
6 4 (11.43%) Release Management
7 3 (8.57%) Scrum
7 3 (8.57%) Test Automation
8 2 (5.71%) API Development
8 2 (5.71%) Change Control
8 2 (5.71%) Clean Code
8 2 (5.71%) Continuous Deployment
8 2 (5.71%) Continuous Improvement
8 2 (5.71%) Data Pipeline
8 2 (5.71%) SDLC
8 2 (5.71%) Unit Testing
Programming Languages
1 13 (37.14%) Python
2 11 (31.43%) JavaScript
3 10 (28.57%) Java
4 8 (22.86%) Go
5 7 (20.00%) PHP
6 6 (17.14%) Scala
7 4 (11.43%) Rust
8 3 (8.57%) Bash Shell
9 2 (5.71%) Perl
9 2 (5.71%) PowerShell
9 2 (5.71%) TypeScript
10 1 (2.86%) Apple Swift
10 1 (2.86%) C
10 1 (2.86%) C#
10 1 (2.86%) C++
10 1 (2.86%) Clojure
10 1 (2.86%) Objective-C
10 1 (2.86%) Shell Script
10 1 (2.86%) SQL
Qualifications
1 3 (8.57%) Security Cleared
2 2 (5.71%) SC Cleared
3 1 (2.86%) CCNA
3 1 (2.86%) Cisco Certification
3 1 (2.86%) Computer Science Degree
3 1 (2.86%) CTC Cleared
3 1 (2.86%) Degree
Quality Assurance & Compliance
1 3 (8.57%) QA
2 1 (2.86%) Accessibility
2 1 (2.86%) WCAG
System Software
1 9 (25.71%) Docker
2 2 (5.71%) VMware Infrastructure
3 1 (2.86%) GeoWebCache
3 1 (2.86%) LXC
3 1 (2.86%) VMware ESXi
Systems Management
1 9 (25.71%) Terraform
2 8 (22.86%) Kubernetes
3 3 (8.57%) Ansible
4 2 (5.71%) Cobbler
4 2 (5.71%) Packer
4 2 (5.71%) Puppet
5 1 (2.86%) vRealize Orchestrator
Vendors
1 3 (8.57%) Google
1 3 (8.57%) Oracle
2 2 (5.71%) VMware
3 1 (2.86%) 3PAR
3 1 (2.86%) Atlassian
3 1 (2.86%) Dell
3 1 (2.86%) EMC
3 1 (2.86%) Facebook
3 1 (2.86%) HP
3 1 (2.86%) Microsoft
3 1 (2.86%) NetApp
3 1 (2.86%) Red Hat