Period
to 4 July 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 4 July 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
4 Jul 2020
Same period 2019 Same period 2018
Rank 93 122 106
Rank change year-on-year +29 -16 -29
Contract jobs citing Open Source 44 124 173
As % of all contract jobs advertised in the City of London 1.61% 1.86% 2.44%
As % of the Processes & Methodologies category 1.84% 2.08% 2.76%
Number of daily rates quoted 30 87 143
Median daily rate £500 £525 £525
Median daily rate % change year-on-year -4.76% - -
10th Percentile £375 £425 £367
90th Percentile £626 £688 £700
Central London median daily rate £538 £550 £525
% change year-on-year -2.27% +4.76% -
Number of hourly rates quoted 3 1 0
Median hourly rate £35.00 £19.50 -
Median hourly rate % change year-on-year +79.49% - -
Central London median hourly rate £35.00 £19.50 £35.00
% change year-on-year +79.49% -44.29% -

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 2,391 5,969 6,270
As % of all contract IT jobs advertised in the City of London 87.26% 89.61% 88.28%
Number of daily rates quoted 1,689 4,627 4,982
Median daily rate £518 £525 £513
Median daily rate % change year-on-year -1.43% +2.44% +2.50%
10th Percentile £331 £351 £331
90th Percentile £675 £675 £688
Central London median daily rate £505 £525 £500
% change year-on-year -3.81% +5.00% +2.04%
Number of hourly rates quoted 49 70 101
Median hourly rate £35.00 £20.75 £18.70
Median hourly rate % change year-on-year +68.67% +10.96% -
10th Percentile £12.48 £11.25 £12.75
90th Percentile £48.70 £54.03 £33.75
Median hourly rate £35.00 £21.09 £19.38
% change year-on-year +65.96% +8.85% +14.51%

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 4 July 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

Open Source
Hourly Rate Histogram in the City of London

Hourly rate distribution of jobs citing Open Source in the City of London over the 6 months to 4 July 2020.

Hourly rate histogram for Open Source in the City of London

For the 6 months to 4 July 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 22 (50.00%) Python
2 17 (38.64%) Java
2 17 (38.64%) Agile Software Development
3 16 (36.36%) Git (software)
3 16 (36.36%) AWS
4 14 (31.82%) DevOps
5 12 (27.27%) Kubernetes
5 12 (27.27%) JavaScript
5 12 (27.27%) Continuous Integration
6 11 (25.00%) Docker
6 11 (25.00%) Jenkins
7 10 (22.73%) Mobile App
7 10 (22.73%) RESTful
7 10 (22.73%) Azure
7 10 (22.73%) Web Services
7 10 (22.73%) Linux
8 8 (18.18%) JUnit
8 8 (18.18%) Configuration Management
8 8 (18.18%) GitHub
9 7 (15.91%) Android Development
9 7 (15.91%) GCP
9 7 (15.91%) Android
10 6 (13.64%) Test Automation
10 6 (13.64%) C
10 6 (13.64%) CSS
10 6 (13.64%) HTML
10 6 (13.64%) Unix
10 6 (13.64%) React
10 6 (13.64%) Machine Learning
10 6 (13.64%) REST

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 5 (11.36%) Apache Spark
2 3 (6.82%) Elasticsearch
3 2 (4.55%) CMS
3 2 (4.55%) Confluence
3 2 (4.55%) nginx
4 1 (2.27%) Apache
4 1 (2.27%) OpenStack
4 1 (2.27%) SharePoint
4 1 (2.27%) SharePoint Server
4 1 (2.27%) Tomcat
4 1 (2.27%) WebLogic
4 1 (2.27%) WebSphere
Applications
1 1 (2.27%) Microsoft Office
Business Applications
1 1 (2.27%) Dynamics CRM
1 1 (2.27%) SAP Business ByDesign
Cloud Services
1 16 (36.36%) AWS
2 10 (22.73%) Azure
3 8 (18.18%) GitHub
4 7 (15.91%) GCP
5 4 (9.09%) IaaS
6 3 (6.82%) Amazon ECS
6 3 (6.82%) Amazon EKS
6 3 (6.82%) OpenShift
7 2 (4.55%) AWS CloudFormation
7 2 (4.55%) Power Platform
8 1 (2.27%) Amazon EC2
8 1 (2.27%) Amazon S3
8 1 (2.27%) AWS Lambda
8 1 (2.27%) NuGet
8 1 (2.27%) SaaS
8 1 (2.27%) Serverless
8 1 (2.27%) SonarCloud
Communications & Networking
1 5 (11.36%) DNS
2 4 (9.09%) DHCP
3 3 (6.82%) Internet
4 2 (4.55%) HTTP
5 1 (2.27%) Intranet
5 1 (2.27%) Kerberos
5 1 (2.27%) SSL
5 1 (2.27%) TCP/IP
Database & Business Intelligence
1 4 (9.09%) Big Data
2 3 (6.82%) MySQL
2 3 (6.82%) NoSQL
3 2 (4.55%) Apache Cassandra
3 2 (4.55%) Power BI
4 1 (2.27%) Apache Hive
4 1 (2.27%) Data Lake
4 1 (2.27%) Hadoop
4 1 (2.27%) MongoDB
4 1 (2.27%) PostgreSQL
4 1 (2.27%) Presto
4 1 (2.27%) Redis
4 1 (2.27%) Relational Database
4 1 (2.27%) SQL Server
4 1 (2.27%) SQL Server Analysis Services
4 1 (2.27%) SQL Server Reporting Services
Development Applications
1 16 (36.36%) Git (software)
2 11 (25.00%) Jenkins
3 8 (18.18%) JUnit
4 4 (9.09%) git-flow
4 4 (9.09%) Gradle
4 4 (9.09%) Mockito
5 3 (6.82%) Android Studio
5 3 (6.82%) Bitbucket
5 3 (6.82%) Cucumber
5 3 (6.82%) GitLab
5 3 (6.82%) Jasmine
5 3 (6.82%) Maven
5 3 (6.82%) Selenium
6 2 (4.55%) CircleCI
6 2 (4.55%) JIRA
6 2 (4.55%) Travis CI
7 1 (2.27%) jMock
7 1 (2.27%) Protractor
7 1 (2.27%) Snyk
7 1 (2.27%) Sonatype Nexus
General
1 4 (9.09%) Games
2 3 (6.82%) Finance
2 3 (6.82%) Law
3 2 (4.55%) Banking
3 2 (4.55%) Public Sector
4 1 (2.27%) Aerospace
4 1 (2.27%) Local Government
Job Titles
1 16 (36.36%) Developer
2 6 (13.64%) DevOps Engineer
3 4 (9.09%) Linux Engineer
4 3 (6.82%) Android Engineer
4 3 (6.82%) Backend Developer
4 3 (6.82%) Data Scientist
4 3 (6.82%) Front End Developer (Client-Side Developer)
4 3 (6.82%) Java Developer
4 3 (6.82%) Senior Developer
5 2 (4.55%) Android Developer
5 2 (4.55%) Cybersecurity Engineer
5 2 (4.55%) iOS Developer
5 2 (4.55%) Python Developer
5 2 (4.55%) Python Engineer
5 2 (4.55%) Ruby Engineer
5 2 (4.55%) Security Engineer
5 2 (4.55%) Senior Android Developer
5 2 (4.55%) Senior Linux Engineer
6 1 (2.27%) Senior Configuration Management Engineer
6 1 (2.27%) Senior Python Developer
Libraries, Frameworks & Software Standards
1 10 (22.73%) RESTful
1 10 (22.73%) Web Services
2 6 (13.64%) CSS
2 6 (13.64%) HTML
2 6 (13.64%) React
2 6 (13.64%) REST
3 5 (11.36%) Node.js
4 4 (9.09%) HTML5
4 4 (9.09%) Kafka
4 4 (9.09%) RxJava
4 4 (9.09%) Spring
5 3 (6.82%) Android SDK
5 3 (6.82%) AngularJS
5 3 (6.82%) Redux
5 3 (6.82%) SOAP
5 3 (6.82%) Spring Boot
6 2 (4.55%) H2O
6 2 (4.55%) RabbitMQ
6 2 (4.55%) SciPy
6 2 (4.55%) TensorFlow
Miscellaneous
1 10 (22.73%) Mobile App
2 5 (11.36%) Enterprise Software
2 5 (11.36%) User Experience
3 4 (9.09%) Algorithms
3 4 (9.09%) Analytical Skills
3 4 (9.09%) Mobile Payment
4 2 (4.55%) Animation
4 2 (4.55%) Blog
4 2 (4.55%) Clustering
4 2 (4.55%) Data Structures
4 2 (4.55%) iPad
4 2 (4.55%) Online Games
4 2 (4.55%) Virtual Team
5 1 (2.27%) Cloud Native
5 1 (2.27%) Foreign Exchange (FX)
5 1 (2.27%) Greenfield Project
5 1 (2.27%) Internet of Things
5 1 (2.27%) Management Information System
5 1 (2.27%) Public Cloud
5 1 (2.27%) Self-Motivation
Operating Systems
1 10 (22.73%) Linux
2 7 (15.91%) Android
3 6 (13.64%) Unix
4 4 (9.09%) Apple iOS
5 2 (4.55%) Red Hat Enterprise Linux
Processes & Methodologies
1 17 (38.64%) Agile Software Development
2 14 (31.82%) DevOps
3 12 (27.27%) Continuous Integration
4 8 (18.18%) Configuration Management
5 7 (15.91%) Android Development
6 6 (13.64%) Machine Learning
6 6 (13.64%) Test Automation
7 5 (11.36%) Data Science
7 5 (11.36%) Software Engineering
8 4 (9.09%) Computer Science
8 4 (9.09%) High Availability
8 4 (9.09%) Microservices
8 4 (9.09%) Mobile Application Development
8 4 (9.09%) Open Source Development
8 4 (9.09%) Pair Programming
8 4 (9.09%) SDLC
8 4 (9.09%) Thought Leadership
8 4 (9.09%) Waterfall
8 4 (9.09%) Web Application Development
9 3 (6.82%) BDD
Programming Languages
1 22 (50.00%) Python
2 17 (38.64%) Java
3 12 (27.27%) JavaScript
4 6 (13.64%) C
5 4 (9.09%) C#
5 4 (9.09%) Kotlin
5 4 (9.09%) Perl
5 4 (9.09%) SQL
6 3 (6.82%) Bash Shell
6 3 (6.82%) C++
6 3 (6.82%) Groovy
6 3 (6.82%) Java 8
6 3 (6.82%) Ruby
7 2 (4.55%) Apple Swift
7 2 (4.55%) PowerShell
7 2 (4.55%) Scala
8 1 (2.27%) Go
8 1 (2.27%) Haskell
8 1 (2.27%) PHP
8 1 (2.27%) TypeScript
Qualifications
1 4 (9.09%) Degree
2 3 (6.82%) PhD
2 3 (6.82%) SC Cleared
2 3 (6.82%) Security Cleared
3 2 (4.55%) Master's Degree
4 1 (2.27%) CHECK Team Member
4 1 (2.27%) Computer Science Degree
4 1 (2.27%) ISEB
4 1 (2.27%) ISTQB
Quality Assurance & Compliance
1 2 (4.55%) QA
System Software
1 11 (25.00%) Docker
2 2 (4.55%) Veritas Cluster Server
3 1 (2.27%) Active Directory
Systems Management
1 12 (27.27%) Kubernetes
2 5 (11.36%) Ansible
2 5 (11.36%) Puppet
2 5 (11.36%) Terraform
3 4 (9.09%) Opscode Chef
3 4 (9.09%) Salt
4 2 (4.55%) Grafana
4 2 (4.55%) Pacemaker
Vendors
1 4 (9.09%) SaltStack
2 2 (4.55%) Red Hat
2 2 (4.55%) Tableau
2 2 (4.55%) Veritas
3 1 (2.27%) Atlassian
3 1 (2.27%) HubSpot
3 1 (2.27%) Microsoft
3 1 (2.27%) Salesforce.com
3 1 (2.27%) SAP
3 1 (2.27%) ServiceNow
3 1 (2.27%) Sybase