Period
to 30 May 2020

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 30 May 2020 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
30 May 2020
Same period 2019 Same period 2018
Rank 85 125 87
Rank change year-on-year +40 -38 +24
Contract jobs citing Ruby 71 112 207
As % of all contract jobs advertised in the City of London 2.32% 1.74% 3.00%
As % of the Programming Languages category 4.79% 3.45% 5.69%
Number of daily rates quoted 58 98 164
Median daily rate £481 £525 £525
Median daily rate % change year-on-year -8.33% - +10.53%
10th Percentile £393 £461 £425
90th Percentile £650 £679 £714
Central London median daily rate £550 £525 £525
% change year-on-year +4.76% - +7.69%
Number of hourly rates quoted 0 0 3
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 1,482 3,248 3,641
As % of all contract IT jobs advertised in the City of London 48.48% 50.56% 52.72%
Number of daily rates quoted 1,118 2,632 3,060
Median daily rate £525 £525 £525
10th Percentile £375 £406 £363
90th Percentile £688 £675 £700
Central London median daily rate £525 £525 £513
% change year-on-year - +2.44% +4.59%
Number of hourly rates quoted 18 21 21
Median hourly rate £35.00 £35.00 £21.50
Median hourly rate % change year-on-year - +62.79% -24.15%
10th Percentile £24.20 £21.00 £12.75
90th Percentile £56.80 £56.50 £48.25
Median hourly rate £35.00 £35.00 £21.50
% change year-on-year - +62.79% -24.15%

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 30 May 2020.

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 30 May 2020, 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 32 (45.07%) JavaScript
1 32 (45.07%) DevOps
2 29 (40.85%) Agile Software Development
2 29 (40.85%) Ruby on Rails
3 26 (36.62%) Python
4 24 (33.80%) AWS
5 18 (25.35%) TDD
5 18 (25.35%) Terraform
6 17 (23.94%) Go
7 16 (22.54%) Continuous Integration
7 16 (22.54%) PostgreSQL
8 15 (21.13%) Java
8 15 (21.13%) Infrastructure as Code
9 14 (19.72%) Linux
9 14 (19.72%) Git (software)
9 14 (19.72%) Kubernetes
10 13 (18.31%) Greenfield Project
11 12 (16.90%) Docker
11 12 (16.90%) GitHub
11 12 (16.90%) CSS
11 12 (16.90%) HTML
12 11 (15.49%) Serverless
13 10 (14.08%) Jenkins
13 10 (14.08%) Microservices
14 9 (12.68%) GCP
14 9 (12.68%) NoSQL
14 9 (12.68%) Continuous Delivery
14 9 (12.68%) Scala
15 8 (11.27%) RSpec
15 8 (11.27%) Groovy

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 3 (4.23%) Elasticsearch
2 2 (2.82%) Apache Spark
2 2 (2.82%) Confluence
3 1 (1.41%) Apache Solr
3 1 (1.41%) Cloud Foundry
3 1 (1.41%) CMS
3 1 (1.41%) nginx
3 1 (1.41%) SharePoint
3 1 (1.41%) Tomcat
3 1 (1.41%) WebSphere
Business Applications
1 1 (1.41%) Dynamics CRM
1 1 (1.41%) Dynamics NAV
1 1 (1.41%) Magento
Cloud Services
1 24 (33.80%) AWS
2 12 (16.90%) GitHub
3 11 (15.49%) Serverless
4 9 (12.68%) GCP
5 8 (11.27%) AWS Lambda
6 5 (7.04%) Azure
6 5 (7.04%) PaaS
7 4 (5.63%) IaaS
8 3 (4.23%) Amazon Kinesis
8 3 (4.23%) Route 53
9 2 (2.82%) Amazon CloudWatch
9 2 (2.82%) Amazon EKS
9 2 (2.82%) Amazon SQS
9 2 (2.82%) AWS CloudFormation
9 2 (2.82%) Azure Functions
9 2 (2.82%) OpenShift
10 1 (1.41%) Amazon ECS
10 1 (1.41%) AWS CodePipeline
10 1 (1.41%) CloudFront
10 1 (1.41%) Dynamics 365
Communications & Networking
1 6 (8.45%) DNS
1 6 (8.45%) Firewall
2 4 (5.63%) TCP/IP
3 3 (4.23%) HTTP
3 3 (4.23%) Internet
3 3 (4.23%) SSL
4 2 (2.82%) DHCP
4 2 (2.82%) OpenVPN
5 1 (1.41%) MPLS
5 1 (1.41%) Software-Defined Networking
5 1 (1.41%) WAN
Database & Business Intelligence
1 16 (22.54%) PostgreSQL
2 9 (12.68%) NoSQL
3 8 (11.27%) Redis
4 6 (8.45%) Data Warehouse
4 6 (8.45%) MySQL
5 4 (5.63%) MongoDB
5 4 (5.63%) Relational Database
6 3 (4.23%) Big Data
6 3 (4.23%) SQL Server
7 2 (2.82%) Hadoop
8 1 (1.41%) Amazon Aurora
8 1 (1.41%) RDBMS
Development Applications
1 14 (19.72%) Git (software)
2 10 (14.08%) Jenkins
3 8 (11.27%) RSpec
4 7 (9.86%) JIRA
5 4 (5.63%) Travis CI
6 3 (4.23%) TeamCity
7 2 (2.82%) Atlassian Bamboo
7 2 (2.82%) minitest
8 1 (1.41%) Cucumber
8 1 (1.41%) Octopus Deploy
8 1 (1.41%) Team Foundation Server
8 1 (1.41%) Visual Studio Team System
General
1 6 (8.45%) Marketing
2 5 (7.04%) Advertising
3 3 (4.23%) Telecoms
4 2 (2.82%) Finance
4 2 (2.82%) Public Sector
4 2 (2.82%) Retail
5 1 (1.41%) Legal
Job Titles
1 39 (54.93%) Developer
2 17 (23.94%) Ruby Developer
3 14 (19.72%) Ruby on Rails Developer
4 9 (12.68%) Platform Engineer
5 7 (9.86%) Senior Developer
6 6 (8.45%) DevOps Engineer
6 6 (8.45%) Python Engineer
7 5 (7.04%) Architect
8 4 (5.63%) AWS DevOps
8 4 (5.63%) Senior Ruby Developer
8 4 (5.63%) Site Reliability Engineer
9 3 (4.23%) AWS DevOps Engineer
9 3 (4.23%) AWS Engineer
9 3 (4.23%) Cloud Engineer
9 3 (4.23%) Front End Developer (Client-Side Developer)
9 3 (4.23%) Site Engineer
9 3 (4.23%) Technical Architect
10 2 (2.82%) Lead Developer
10 2 (2.82%) Linux Engineer
10 2 (2.82%) Senior Technical Architect
Libraries, Frameworks & Software Standards
1 29 (40.85%) Ruby on Rails
2 12 (16.90%) CSS
2 12 (16.90%) HTML
3 8 (11.27%) Web Services
4 7 (9.86%) Redux
5 4 (5.63%) Elastic Stack
5 4 (5.63%) Node.js
5 4 (5.63%) RESTful
6 3 (4.23%) Express
6 3 (4.23%) Kafka
7 2 (2.82%) GraphQL
7 2 (2.82%) HTML5
7 2 (2.82%) iOS SDK
7 2 (2.82%) JSON
7 2 (2.82%) REST
7 2 (2.82%) YAML
8 1 (1.41%) ActiveMQ
8 1 (1.41%) Ajax
8 1 (1.41%) jQuery
8 1 (1.41%) XML
Miscellaneous
1 13 (18.31%) Greenfield Project
2 6 (8.45%) Analytical Skills
3 3 (4.23%) BYOD
3 3 (4.23%) Management Information System
4 2 (2.82%) Cloud Native
4 2 (2.82%) Clustering
4 2 (2.82%) Marketing Technology
4 2 (2.82%) Public Cloud
5 1 (1.41%) Algorithms
5 1 (1.41%) e-Learning
5 1 (1.41%) User Experience
Operating Systems
1 14 (19.72%) Linux
2 3 (4.23%) Windows
3 2 (2.82%) Apple iOS
3 2 (2.82%) Unix
3 2 (2.82%) Windows Server
Processes & Methodologies
1 32 (45.07%) DevOps
2 29 (40.85%) Agile Software Development
3 18 (25.35%) TDD
4 16 (22.54%) Continuous Integration
5 15 (21.13%) Infrastructure as Code
6 10 (14.08%) Microservices
7 9 (12.68%) Continuous Delivery
8 6 (8.45%) Business Intelligence
8 6 (8.45%) Dashboard Development
8 6 (8.45%) Non-Functional Testing
8 6 (8.45%) Open Source
9 5 (7.04%) Configuration Management
9 5 (7.04%) Continuous Deployment
9 5 (7.04%) High Availability
10 4 (5.63%) Front End Development
10 4 (5.63%) Site Reliability Engineering
11 3 (4.23%) API Development
11 3 (4.23%) Digital Transformation Programme
11 3 (4.23%) Infrastructure Automation
11 3 (4.23%) Technical Debt
Programming Languages
1 32 (45.07%) JavaScript
2 26 (36.62%) Python
3 17 (23.94%) Go
4 15 (21.13%) Java
5 9 (12.68%) Scala
6 8 (11.27%) Groovy
7 7 (9.86%) SQL
8 6 (8.45%) Bash Shell
9 5 (7.04%) PHP
10 4 (5.63%) PowerShell
11 3 (4.23%) C#
11 3 (4.23%) Perl
12 2 (2.82%) Apple Swift
12 2 (2.82%) C
12 2 (2.82%) Kotlin
12 2 (2.82%) Shell Script
13 1 (1.41%) C++
13 1 (1.41%) T-SQL
13 1 (1.41%) VB.NET
Qualifications
1 4 (5.63%) Security Cleared
2 3 (4.23%) BC Cleared
3 1 (1.41%) BPSS Clearance
3 1 (1.41%) CHECK Team Member
3 1 (1.41%) Degree
System Software
1 12 (16.90%) Docker
2 2 (2.82%) Apache Flume
2 2 (2.82%) HDFS
2 2 (2.82%) Veritas Cluster Server
3 1 (1.41%) Apache ZooKeeper
Systems Management
1 18 (25.35%) Terraform
2 14 (19.72%) Kubernetes
3 7 (9.86%) Ansible
4 5 (7.04%) Puppet
5 3 (4.23%) Opscode Chef
6 2 (2.82%) Pacemaker
6 2 (2.82%) Prometheus
6 2 (2.82%) Salt
Vendors
1 8 (11.27%) Google
2 5 (7.04%) Facebook
2 5 (7.04%) Splunk
3 3 (4.23%) Microsoft
3 3 (4.23%) Oracle
4 2 (2.82%) Atlassian
4 2 (2.82%) Lets Encrypt
4 2 (2.82%) New Relic
4 2 (2.82%) Remedy
4 2 (2.82%) Salesforce.com
4 2 (2.82%) SaltStack
4 2 (2.82%) TOWER Software
4 2 (2.82%) Veritas
5 1 (1.41%) Adyen
5 1 (1.41%) Netezza
5 1 (1.41%) PayPal
5 1 (1.41%) Salesforce Marketing Cloud
5 1 (1.41%) Sybase