Period
to 3 December 2020

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Open Source skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Open Source over the 6 months to 3 December 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.

Open Source
Central London > City of London
6 months to
3 Dec 2020
Same period 2019 Same period 2018
Rank 77 117 87
Rank change year-on-year +40 -30 +2
Contract jobs citing Open Source 44 105 220
As % of all contract jobs advertised in the City of London 2.21% 1.83% 3.12%
As % of the Processes & Methodologies category 2.52% 2.04% 3.56%
Number of daily rates quoted 35 78 170
Median daily rate £525 £528 £525
Median daily rate % change year-on-year -0.47% +0.48% -4.55%
10th Percentile £380 £413 £363
90th Percentile £683 £658 £775
Central London median daily rate £525 £550 £525
% change year-on-year -4.55% +4.76% -4.55%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
Central London median hourly rate - - £35.00

Open Source is in the Processes and Methodologies 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 process or methodology skills.

All Process and Methodology Skills
City of London
Contract vacancies with a requirement for process or methodology skills 1,748 5,156 6,184
As % of all contract IT jobs advertised in the City of London 87.71% 89.69% 87.74%
Number of daily rates quoted 1,239 4,009 4,904
Median daily rate £525 £520 £510
Median daily rate % change year-on-year +0.96% +1.96% +1.90%
10th Percentile £313 £325 £325
90th Percentile £688 £688 £675
Central London median daily rate £515 £513 £505
% change year-on-year +0.49% +1.49% +1.00%
Number of hourly rates quoted 30 54 93
Median hourly rate £29.50 £20.42 £18.70
Median hourly rate % change year-on-year +44.50% +9.17% -7.65%
10th Percentile £14.89 £12.04 £13.31
90th Percentile £46.18 £53.30 £34.60
Median hourly rate £29.89 £21.00 £19.00
% change year-on-year +42.33% +10.53% -7.32%

Open Source
Job Vacancy Trend in the City of London

Job postings citing Open Source as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Open Source in the City of London

Open Source
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for Open Source in the City of London

Open Source
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Open Source in the City of London over the 6 months to 3 December 2020.

Daily rate histogram for Open Source in the City of London

Open Source
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for Open Source in the City of London

For the 6 months to 3 December 2020, IT contractor jobs citing Open Source 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 Open Source.

1 26 (59.09%) Java
2 22 (50.00%) AWS
3 21 (47.73%) Agile Software Development
4 17 (38.64%) Microservices
5 16 (36.36%) Jenkins
5 16 (36.36%) JavaScript
6 15 (34.09%) Spring
7 14 (31.82%) DevOps
8 13 (29.55%) Azure
9 11 (25.00%) AngularJS
9 11 (25.00%) Terraform
9 11 (25.00%) Hibernate
9 11 (25.00%) Scrum
9 11 (25.00%) Continuous Integration
9 11 (25.00%) Linux
9 11 (25.00%) Python
9 11 (25.00%) Java 8
10 10 (22.73%) Oracle
10 10 (22.73%) Apache Camel
10 10 (22.73%) REST
11 9 (20.45%) High Availability
11 9 (20.45%) Enterprise Software
11 9 (20.45%) React
11 9 (20.45%) Banking
12 8 (18.18%) Web Development
12 8 (18.18%) HTML
12 8 (18.18%) Apache
12 8 (18.18%) Finance
12 8 (18.18%) Relational Database
13 7 (15.91%) Performance Tuning

Open Source
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 8 (18.18%) Apache
2 7 (15.91%) Red Hat Fuse
3 2 (4.55%) Apache Spark
4 1 (2.27%) Confluence
4 1 (2.27%) WordPress
Cloud Services
1 22 (50.00%) AWS
2 13 (29.55%) Azure
3 7 (15.91%) Serverless
4 6 (13.64%) GCP
5 5 (11.36%) GitHub
6 4 (9.09%) Amazon EC2
6 4 (9.09%) PaaS
6 4 (9.09%) SaaS
7 3 (6.82%) IaaS
8 2 (4.55%) AWS CloudFormation
8 2 (4.55%) AWS CodePipeline
8 2 (4.55%) Cloud Computing
8 2 (4.55%) Power Platform
9 1 (2.27%) Amazon ECS
9 1 (2.27%) Amazon EKS
9 1 (2.27%) AWS Lambda
9 1 (2.27%) AWS Step Functions
9 1 (2.27%) BlazeMeter
9 1 (2.27%) Kong
9 1 (2.27%) SonarCloud
Communications & Networking
1 2 (4.55%) HTTP
1 2 (4.55%) Internet
2 1 (2.27%) Firewall
2 1 (2.27%) Kerberos
2 1 (2.27%) SSL
2 1 (2.27%) TCP/IP
Database & Business Intelligence
1 8 (18.18%) Relational Database
2 5 (11.36%) MySQL
3 4 (9.09%) RDBMS
4 3 (6.82%) Big Data
4 3 (6.82%) Oracle Database
4 3 (6.82%) SQL Server
5 2 (4.55%) PostgreSQL
5 2 (4.55%) Power BI
5 2 (4.55%) Redis
5 2 (4.55%) Tableau
6 1 (2.27%) Apache Cassandra
6 1 (2.27%) Apache Hive
6 1 (2.27%) BigQuery
6 1 (2.27%) Geospatial Data
6 1 (2.27%) GIS
6 1 (2.27%) Hadoop
6 1 (2.27%) HBase
6 1 (2.27%) MariaDB
6 1 (2.27%) MongoDB
6 1 (2.27%) NoSQL
Development Applications
1 16 (36.36%) Jenkins
2 5 (11.36%) Maven
3 4 (9.09%) JUnit
4 3 (6.82%) Atlassian Bamboo
4 3 (6.82%) Bitbucket
4 3 (6.82%) Git (software)
4 3 (6.82%) Gradle
4 3 (6.82%) gulp
4 3 (6.82%) Mockito
5 2 (4.55%) GitLab
5 2 (4.55%) Grunt
5 2 (4.55%) Selenium
6 1 (2.27%) Cucumber
6 1 (2.27%) Cypress.io
6 1 (2.27%) Eclipse
6 1 (2.27%) IntelliJ
6 1 (2.27%) JIRA
6 1 (2.27%) Mocha
6 1 (2.27%) SonarQube
6 1 (2.27%) Sonatype Nexus
General
1 9 (20.45%) Banking
2 8 (18.18%) Finance
3 6 (13.64%) Public Sector
4 1 (2.27%) Financial Institution
4 1 (2.27%) Games
4 1 (2.27%) Law
Job Titles
1 23 (52.27%) Developer
2 10 (22.73%) Java Developer
3 8 (18.18%) Architect
4 4 (9.09%) Full Stack Developer
4 4 (9.09%) Java Architect
4 4 (9.09%) Java Solutions Architect
4 4 (9.09%) Solutions Architect
5 3 (6.82%) Applications Developer
5 3 (6.82%) Azure Architect
5 3 (6.82%) Data Architect
5 3 (6.82%) DevOps Engineer
5 3 (6.82%) Java Applications Developer
5 3 (6.82%) Python Developer
5 3 (6.82%) Security Engineer
6 2 (4.55%) Agile Delivery Manager
6 2 (4.55%) Cybersecurity Engineer
6 2 (4.55%) Delivery Manager
6 2 (4.55%) Front End Developer (Client-Side Developer)
6 2 (4.55%) JavaScript Developer
6 2 (4.55%) Technical Architect
Libraries, Frameworks & Software Standards
1 15 (34.09%) Spring
2 11 (25.00%) AngularJS
2 11 (25.00%) Hibernate
3 10 (22.73%) Apache Camel
3 10 (22.73%) REST
4 9 (20.45%) React
5 8 (18.18%) HTML
6 7 (15.91%) Ajax
6 7 (15.91%) GWT
6 7 (15.91%) HTML5
6 7 (15.91%) JDBC
6 7 (15.91%) JMS
6 7 (15.91%) jQuery
6 7 (15.91%) JSF
6 7 (15.91%) Kafka
6 7 (15.91%) OSGi
6 7 (15.91%) RESTful
7 6 (13.64%) Node.js
8 5 (11.36%) Web Services
9 4 (9.09%) Middleware
Miscellaneous
1 9 (20.45%) Enterprise Software
2 7 (15.91%) Clustering
3 5 (11.36%) Fixed Income
4 3 (6.82%) Cloud Native
4 3 (6.82%) Derivative
4 3 (6.82%) Equity Derivative
5 2 (4.55%) Algorithms
5 2 (4.55%) Analytical Skills
5 2 (4.55%) Blog
5 2 (4.55%) Data Structures
5 2 (4.55%) Foreign Exchange (FX)
5 2 (4.55%) Management Information System
5 2 (4.55%) Public Cloud
5 2 (4.55%) Self-Motivation
6 1 (2.27%) Blackberry
6 1 (2.27%) Mobile App
6 1 (2.27%) RIA
Operating Systems
1 11 (25.00%) Linux
2 2 (4.55%) Unix
3 1 (2.27%) Android
3 1 (2.27%) Windows
Processes & Methodologies
1 21 (47.73%) Agile Software Development
2 17 (38.64%) Microservices
3 14 (31.82%) DevOps
4 11 (25.00%) Continuous Integration
4 11 (25.00%) Scrum
5 9 (20.45%) High Availability
6 8 (18.18%) Web Development
7 7 (15.91%) Infrastructure as Code
7 7 (15.91%) Performance Tuning
7 7 (15.91%) Scalability Testing
8 5 (11.36%) Software Engineering
8 5 (11.36%) Unit Testing
9 4 (9.09%) Extreme Programming
9 4 (9.09%) Front End Development
9 4 (9.09%) Information Security
9 4 (9.09%) OO
9 4 (9.09%) Pair Programming
9 4 (9.09%) RUP
10 3 (6.82%) Concurrent Programming
10 3 (6.82%) Stakeholder Engagement
Programming Languages
1 26 (59.09%) Java
2 16 (36.36%) JavaScript
3 11 (25.00%) Java 8
3 11 (25.00%) Python
4 6 (13.64%) SQL
5 3 (6.82%) ES6
6 2 (4.55%) Bash Shell
6 2 (4.55%) C#
6 2 (4.55%) C++
6 2 (4.55%) Go
6 2 (4.55%) Ruby
6 2 (4.55%) Scala
7 1 (2.27%) C
7 1 (2.27%) ES7
7 1 (2.27%) Korn
7 1 (2.27%) Perl
7 1 (2.27%) PHP
7 1 (2.27%) Shell Script
Qualifications
1 5 (11.36%) SC Cleared
1 5 (11.36%) Security Cleared
2 1 (2.27%) CISSP
Quality Assurance & Compliance
1 3 (6.82%) MiFID
1 3 (6.82%) QA
System Software
1 7 (15.91%) Docker
2 2 (4.55%) Apache ZooKeeper
2 2 (4.55%) etcd
2 2 (4.55%) Varnish
Systems Management
1 11 (25.00%) Terraform
2 5 (11.36%) Ansible
3 4 (9.09%) Kubernetes
4 2 (4.55%) Consul
4 2 (4.55%) Grafana
5 1 (2.27%) Microsoft Intune
5 1 (2.27%) Rundeck
Vendors
1 10 (22.73%) Oracle
2 4 (9.09%) Google
3 2 (4.55%) Microsoft
4 1 (2.27%) Apple
4 1 (2.27%) Cloudera
4 1 (2.27%) Dynatrace
4 1 (2.27%) Hortonworks
4 1 (2.27%) Luciad
4 1 (2.27%) MapR
4 1 (2.27%) MobileIron
4 1 (2.27%) Rapid7
4 1 (2.27%) Salesforce.com
4 1 (2.27%) Splunk