Period
to 8 April 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 8 April 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
8 Apr 2020
Same period 2019 Same period 2018
Rank 118 84 122
Rank change year-on-year -34 +38 -39
Contract jobs citing Open Source 64 191 152
As % of all contract jobs advertised in the City of London 1.55% 2.80% 2.14%
As % of the Processes & Methodologies category 1.78% 3.13% 2.39%
Number of daily rates quoted 50 141 137
Median daily rate £488 £525 £525
Median daily rate % change year-on-year -7.14% - -
10th Percentile £357 £363 £394
90th Percentile £597 £775 £680
Central London median daily rate £538 £525 £525
% change year-on-year +2.38% - -
Number of hourly rates quoted 3 0 1
Median hourly rate £35.00 - £44.50
Central London median hourly rate £35.00 - £44.50

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 3,604 6,106 6,349
As % of all contract IT jobs advertised in the City of London 87.22% 89.40% 89.35%
Number of daily rates quoted 2,646 4,712 5,047
Median daily rate £525 £525 £510
Median daily rate % change year-on-year - +2.94% +3.55%
10th Percentile £325 £325 £338
90th Percentile £675 £675 £697
Central London median daily rate £511 £525 £500
% change year-on-year -2.67% +5.00% +5.26%
Number of hourly rates quoted 60 55 87
Median hourly rate £26.22 £22.00 £20.00
Median hourly rate % change year-on-year +19.18% +10.00% -2.53%
10th Percentile £12.42 £12.76 £11.81
90th Percentile £52.25 £42.61 £46.16
Median hourly rate £32.51 £21.50 £21.50
% change year-on-year +51.22% - +13.16%

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 8 April 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 8 April 2020.

Hourly rate histogram for Open Source in the City of London

For the 6 months to 8 April 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 37 (57.81%) Agile Software Development
2 25 (39.06%) Java
3 24 (37.50%) Python
4 22 (34.38%) JavaScript
4 22 (34.38%) AWS
5 18 (28.13%) Git (software)
5 18 (28.13%) Continuous Integration
6 17 (26.56%) Web Services
7 16 (25.00%) Docker
7 16 (25.00%) DevOps
8 15 (23.44%) Mobile App
8 15 (23.44%) RESTful
9 14 (21.88%) JUnit
10 12 (18.75%) Linux
10 12 (18.75%) Degree
10 12 (18.75%) Kubernetes
11 11 (17.19%) User Experience
11 11 (17.19%) GCP
11 11 (17.19%) GitHub
11 11 (17.19%) Computer Science
11 11 (17.19%) CSS
11 11 (17.19%) HTML
12 10 (15.63%) Multithreading
12 10 (15.63%) Spring
12 10 (15.63%) Big Data
12 10 (15.63%) Test Automation
12 10 (15.63%) Azure
12 10 (15.63%) Mockito
12 10 (15.63%) Jenkins
12 10 (15.63%) SDLC

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 (12.50%) Apache Spark
2 6 (9.38%) WebLogic
2 6 (9.38%) WebSphere
3 5 (7.81%) nginx
4 4 (6.25%) Elasticsearch
5 2 (3.13%) Apache
5 2 (3.13%) Confluence
5 2 (3.13%) DNN
5 2 (3.13%) OpenStack
6 1 (1.56%) Apache Solr
6 1 (1.56%) ArcGIS
6 1 (1.56%) CMS
6 1 (1.56%) Drupal
6 1 (1.56%) Hyperledger
6 1 (1.56%) JBoss
6 1 (1.56%) Red Hat Fuse
6 1 (1.56%) Tomcat
Business Applications
1 1 (1.56%) Dynamics CRM
1 1 (1.56%) SAP Business ByDesign
Cloud Services
1 22 (34.38%) AWS
2 11 (17.19%) GCP
2 11 (17.19%) GitHub
3 10 (15.63%) Azure
4 2 (3.13%) Amazon ECS
4 2 (3.13%) Amazon EKS
4 2 (3.13%) AWS Lambda
4 2 (3.13%) Google App Engine
4 2 (3.13%) OpenShift
4 2 (3.13%) Serverless
5 1 (1.56%) Amazon EC2
5 1 (1.56%) Amazon S3
5 1 (1.56%) AWS CloudFormation
5 1 (1.56%) Power Platform
Communications & Networking
1 7 (10.94%) HTTP
2 2 (3.13%) Kerberos
3 1 (1.56%) DNS
3 1 (1.56%) Internet
3 1 (1.56%) SSL
3 1 (1.56%) TCP/IP
Database & Business Intelligence
1 10 (15.63%) Big Data
2 6 (9.38%) MySQL
3 5 (7.81%) PostgreSQL
4 4 (6.25%) MongoDB
4 4 (6.25%) NoSQL
5 3 (4.69%) Hadoop
6 2 (3.13%) Flink
6 2 (3.13%) Relational Database
7 1 (1.56%) Apache Cassandra
7 1 (1.56%) Apache Hive
7 1 (1.56%) Blockchain
7 1 (1.56%) Data Lake
7 1 (1.56%) Geospatial Data
7 1 (1.56%) GIS
7 1 (1.56%) Power BI
7 1 (1.56%) Presto
7 1 (1.56%) QGIS
7 1 (1.56%) SQL Server
7 1 (1.56%) Tick Data
Development Applications
1 18 (28.13%) Git (software)
2 14 (21.88%) JUnit
3 10 (15.63%) Jenkins
3 10 (15.63%) Mockito
4 9 (14.06%) git-flow
4 9 (14.06%) Gradle
4 9 (14.06%) Maven
5 6 (9.38%) Ant
5 6 (9.38%) JMeter
6 4 (6.25%) Bitbucket
7 3 (4.69%) Android Studio
7 3 (4.69%) JIRA
7 3 (4.69%) Selenium
8 2 (3.13%) CircleCI
8 2 (3.13%) Cucumber
8 2 (3.13%) Travis CI
9 1 (1.56%) Jasmine
9 1 (1.56%) jMock
9 1 (1.56%) NUnit
9 1 (1.56%) RSpec
General
1 5 (7.81%) Public Sector
2 4 (6.25%) Games
3 2 (3.13%) Banking
3 2 (3.13%) Telecoms
4 1 (1.56%) Finance
4 1 (1.56%) Law
4 1 (1.56%) Legal
4 1 (1.56%) Local Government
4 1 (1.56%) Marketing
Job Titles
1 27 (42.19%) Developer
2 10 (15.63%) Java Developer
3 7 (10.94%) Data Scientist
4 6 (9.38%) Architect
5 5 (7.81%) DevOps Engineer
5 5 (7.81%) Python Developer
5 5 (7.81%) Technical Architect
6 4 (6.25%) Backend Developer
7 3 (4.69%) Android Engineer
7 3 (4.69%) Machine Learning Scientist
7 3 (4.69%) Penetration Tester
7 3 (4.69%) Senior Developer
8 2 (3.13%) Analyst
8 2 (3.13%) Android Developer
8 2 (3.13%) Cloud Engineer
8 2 (3.13%) Java Engineer
8 2 (3.13%) Security Architect
8 2 (3.13%) Senior Android Developer
8 2 (3.13%) Senior Java Engineer
8 2 (3.13%) Senior Technical Architect
Libraries, Frameworks & Software Standards
1 17 (26.56%) Web Services
2 15 (23.44%) RESTful
3 11 (17.19%) CSS
3 11 (17.19%) HTML
4 10 (15.63%) Spring
5 9 (14.06%) HTML5
5 9 (14.06%) RxJava
5 9 (14.06%) SOAP
6 8 (12.50%) REST
7 7 (10.94%) JSON
7 7 (10.94%) XML
8 6 (9.38%) J2EE
8 6 (9.38%) Kafka
8 6 (9.38%) MLlib
8 6 (9.38%) Pandas
8 6 (9.38%) SciPy
8 6 (9.38%) TensorFlow
9 5 (7.81%) Node.js
10 4 (6.25%) Django
10 4 (6.25%) React
Miscellaneous
1 15 (23.44%) Mobile App
2 11 (17.19%) User Experience
3 9 (14.06%) Mobile Payment
4 8 (12.50%) Algorithms
4 8 (12.50%) Analytical Skills
4 8 (12.50%) Enterprise Software
5 6 (9.38%) Data Structures
6 4 (6.25%) Greenfield Project
7 2 (3.13%) Animation
7 2 (3.13%) iPad
7 2 (3.13%) Online Games
8 1 (1.56%) Cloud Native
8 1 (1.56%) Data Centre
8 1 (1.56%) Equities
8 1 (1.56%) Internet of Things
8 1 (1.56%) Linux Command Line
8 1 (1.56%) PKI
8 1 (1.56%) Public Cloud
8 1 (1.56%) Self-Motivation
Operating Systems
1 12 (18.75%) Linux
2 7 (10.94%) Android
3 4 (6.25%) Apple iOS
4 2 (3.13%) Unix
5 1 (1.56%) Mac OS X
5 1 (1.56%) Ubuntu
Processes & Methodologies
1 37 (57.81%) Agile Software Development
2 18 (28.13%) Continuous Integration
3 16 (25.00%) DevOps
4 11 (17.19%) Computer Science
5 10 (15.63%) Data Science
5 10 (15.63%) Multithreading
5 10 (15.63%) SDLC
5 10 (15.63%) Test Automation
6 9 (14.06%) Thought Leadership
7 8 (12.50%) Machine Learning
7 8 (12.50%) Microservices
7 8 (12.50%) Pair Programming
7 8 (12.50%) Waterfall
8 7 (10.94%) Android Development
8 7 (10.94%) API Development
8 7 (10.94%) Scrum
8 7 (10.94%) TDD
9 6 (9.38%) Artificial Intelligence
9 6 (9.38%) Multithreaded Programming
9 6 (9.38%) Use Case
Programming Languages
1 25 (39.06%) Java
2 24 (37.50%) Python
3 22 (34.38%) JavaScript
4 9 (14.06%) Kotlin
5 8 (12.50%) Ruby
6 6 (9.38%) C#
6 6 (9.38%) Scala
7 4 (6.25%) Java 8
8 3 (4.69%) Bash Shell
8 3 (4.69%) PHP
9 2 (3.13%) Apple Swift
9 2 (3.13%) C
9 2 (3.13%) C++
9 2 (3.13%) Groovy
9 2 (3.13%) PowerShell
9 2 (3.13%) SQL
10 1 (1.56%) Go
10 1 (1.56%) Haskell
10 1 (1.56%) MATLAB
10 1 (1.56%) R
Qualifications
1 12 (18.75%) Degree
2 6 (9.38%) Master's Degree
2 6 (9.38%) PhD
3 5 (7.81%) Computer Science Degree
4 3 (4.69%) CHECK Team Member
4 3 (4.69%) SC Cleared
4 3 (4.69%) Security Cleared
5 1 (1.56%) ISEB
5 1 (1.56%) ISTQB
Quality Assurance & Compliance
1 3 (4.69%) QA
2 1 (1.56%) NCSC
System Software
1 16 (25.00%) Docker
2 1 (1.56%) Varnish
2 1 (1.56%) VMware Infrastructure
2 1 (1.56%) vSphere
Systems Management
1 12 (18.75%) Kubernetes
2 4 (6.25%) Ansible
2 4 (6.25%) Terraform
3 2 (3.13%) Puppet
4 1 (1.56%) Grafana
4 1 (1.56%) Kibana
4 1 (1.56%) Packer
4 1 (1.56%) Prometheus
Vendors
1 5 (7.81%) Google
2 1 (1.56%) ESRI
2 1 (1.56%) HubSpot
2 1 (1.56%) IBM
2 1 (1.56%) Microsoft
2 1 (1.56%) Red Hat
2 1 (1.56%) SAP
2 1 (1.56%) ServiceNow
2 1 (1.56%) VMware