Period
to 13 December 2019

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 13 December 2019 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
13 Dec 2019
Same period 2018 Same period 2017
Rank 114 83 89
Rank change year-on-year -31 +6 -10
Contract jobs citing Open Source 101 227 201
As % of all contract IT jobs advertised in the City of London 1.82% 3.18% 2.79%
As % of the Processes & Methodologies category 2.04% 3.63% 3.10%
Number of daily rates quoted 75 172 183
City of London median daily rate £530 £525 £550
Median daily rate % change year-on-year +0.95% -4.55% +7.84%
10th Percentile £418 £360 £420
90th Percentile £665 £775 £675
Central London median daily rate £550 £525 £550
% change year-on-year +4.76% -4.55% +10.00%
Number of hourly rates quoted 0 0 0
City of London 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 4,961 6,249 6,480
As % of all contract IT jobs advertised in the City of London 89.19% 87.58% 89.95%
Number of daily rates quoted 3,839 4,928 5,163
City of London median daily rate £520 £513 £501
Median daily rate % change year-on-year +1.46% +2.40% +5.37%
10th Percentile £325 £325 £325
90th Percentile £677 £675 £688
Central London median daily rate £513 £505 £500
% change year-on-year +1.49% +1.00% +5.26%
Number of hourly rates quoted 55 86 60
City of London median hourly rate £20.83 £19.00 £18.70
Median hourly rate % change year-on-year +9.63% +1.60% -6.50%
10th Percentile £12.04 £13.31 £13.15
90th Percentile £52.25 £34.00 £31.05
Central London median hourly rate £21.00 £19.13 £20.25
% change year-on-year +9.80% -5.56% +6.58%

Open Source
Job Vacancy Trend in the City of London

Job postings citing Open Source as a percentage 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

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Open Source in the City of London.

Contractor daily rate trend for Open Source in the City of London

Open Source
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Open Source in the City of London over the 6 months to 13 December 2019.

Contractor daily rate histogram for Open Source in the City of London

Open Source
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Open Source in the City of London.

Contractor hourly rate trend for Open Source in the City of London

For the 6 months to 13 December 2019, 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 52 (51.49%) Agile Software Development
2 50 (49.50%) Python
2 50 (49.50%) AWS
3 42 (41.58%) Java
4 29 (28.71%) DevOps
5 26 (25.74%) Linux
6 24 (23.76%) Web Services
6 24 (23.76%) Continuous Integration
7 23 (22.77%) JavaScript
8 22 (21.78%) Jenkins
9 21 (20.79%) Docker
10 20 (19.80%) Data Science
11 18 (17.82%) Kafka
11 18 (17.82%) Microservices
11 18 (17.82%) GCP
11 18 (17.82%) SQL
11 18 (17.82%) Git (software)
12 17 (16.83%) Azure
12 17 (16.83%) Ruby
12 17 (16.83%) Computer Science
12 17 (16.83%) Configuration Management
12 17 (16.83%) Scrum
12 17 (16.83%) Machine Learning
12 17 (16.83%) Big Data
13 15 (14.85%) Degree
13 15 (14.85%) JSON
14 14 (13.86%) HTML
14 14 (13.86%) CSS
14 14 (13.86%) Apache Spark
15 13 (12.87%) Continuous Delivery

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 14 (13.86%) Apache Spark
2 7 (6.93%) Elasticsearch
3 6 (5.94%) nginx
4 4 (3.96%) OpenStack
4 4 (3.96%) WebLogic
4 4 (3.96%) WebSphere
5 3 (2.97%) ArcGIS
5 3 (2.97%) Cloud Foundry
5 3 (2.97%) Confluence
5 3 (2.97%) Drupal
5 3 (2.97%) Hyperledger
5 3 (2.97%) IIS
6 2 (1.98%) Apache
6 2 (1.98%) DNN
6 2 (1.98%) Ethereum
7 1 (0.99%) Apache Airflow
7 1 (0.99%) CMS
7 1 (0.99%) JBoss
7 1 (0.99%) Liferay
7 1 (0.99%) SAS
Applications
1 1 (0.99%) MS Visio
1 1 (0.99%) SPSS
Business Applications
1 2 (1.98%) Distributed Ledger
1 2 (1.98%) Oracle Cash Management
1 2 (1.98%) R3 Corda
2 1 (0.99%) FINCAD Analytics
2 1 (0.99%) NetSuite
Cloud Services
1 50 (49.50%) AWS
2 18 (17.82%) GCP
3 17 (16.83%) Azure
4 9 (8.91%) GitHub
5 7 (6.93%) Datadog
6 6 (5.94%) Serverless
6 6 (5.94%) Virtual Private Cloud
7 4 (3.96%) AWS Lambda
8 3 (2.97%) Amazon EC2
8 3 (2.97%) Amazon ELB
8 3 (2.97%) Cloud Computing
8 3 (2.97%) Google App Engine
8 3 (2.97%) OpenShift
9 2 (1.98%) Amazon S3
9 2 (1.98%) IaaS
9 2 (1.98%) PaaS
9 2 (1.98%) Power Platform
9 2 (1.98%) SaaS
10 1 (0.99%) AWS CloudFormation
10 1 (0.99%) AWS Step Functions
Communications & Networking
1 8 (7.92%) VPN
2 7 (6.93%) Internet
3 5 (4.95%) HTTP
4 2 (1.98%) Kerberos
4 2 (1.98%) NAS
4 2 (1.98%) Peer-to-Peer Networking
4 2 (1.98%) SAN
5 1 (0.99%) TCP/IP
Database & Business Intelligence
1 17 (16.83%) Big Data
2 11 (10.89%) Hadoop
3 10 (9.90%) NoSQL
3 10 (9.90%) PostgreSQL
4 9 (8.91%) MongoDB
5 6 (5.94%) MySQL
6 4 (3.96%) Relational Database
7 3 (2.97%) Blockchain
7 3 (2.97%) Flink
8 2 (1.98%) Amazon RDS
8 2 (1.98%) Apache Cassandra
8 2 (1.98%) DB2
8 2 (1.98%) Power BI
8 2 (1.98%) SQL Server
9 1 (0.99%) Amazon Redshift
9 1 (0.99%) Apache Hive
9 1 (0.99%) Data Warehouse
9 1 (0.99%) GIS
9 1 (0.99%) KDB
9 1 (0.99%) RDBMS
Development Applications
1 22 (21.78%) Jenkins
2 18 (17.82%) Git (software)
3 11 (10.89%) JIRA
4 9 (8.91%) Maven
5 7 (6.93%) Sonatype Nexus
6 6 (5.94%) Gradle
6 6 (5.94%) JUnit
6 6 (5.94%) Mockito
7 5 (4.95%) JMeter
8 4 (3.96%) Ant
8 4 (3.96%) git-flow
8 4 (3.96%) Selenium
9 3 (2.97%) Cucumber
10 2 (1.98%) Bitbucket
10 2 (1.98%) Jasmine
10 2 (1.98%) PhantomJS
10 2 (1.98%) SonarQube
10 2 (1.98%) WebDriver
11 1 (0.99%) gulp
11 1 (0.99%) Vagrant
General
1 13 (12.87%) Finance
2 4 (3.96%) Law
2 4 (3.96%) Publishing
3 3 (2.97%) Banking
3 3 (2.97%) Investment Banking
3 3 (2.97%) Public Sector
4 2 (1.98%) Marketing
4 2 (1.98%) Telecoms
5 1 (0.99%) Front Office
5 1 (0.99%) Legal
5 1 (0.99%) Pharmaceutical
Job Titles
1 38 (37.62%) Developer
2 16 (15.84%) DevOps Engineer
3 11 (10.89%) Data Scientist
4 10 (9.90%) Architect
4 10 (9.90%) Java Developer
5 8 (7.92%) Python Developer
6 5 (4.95%) AWS DevOps
6 5 (4.95%) AWS DevOps Engineer
6 5 (4.95%) AWS Engineer
6 5 (4.95%) Backend Developer
6 5 (4.95%) Data Engineer
6 5 (4.95%) React Developer
7 4 (3.96%) Analyst
7 4 (3.96%) Machine Learning Scientist
7 4 (3.96%) Penetration Tester
7 4 (3.96%) Tester
8 3 (2.97%) Data Architect
8 3 (2.97%) Java Engineer
8 3 (2.97%) Solutions Architect
8 3 (2.97%) Technical Architect
Libraries, Frameworks & Software Standards
1 24 (23.76%) Web Services
2 18 (17.82%) Kafka
3 15 (14.85%) JSON
4 14 (13.86%) CSS
4 14 (13.86%) HTML
5 13 (12.87%) RESTful
6 10 (9.90%) Spring
7 9 (8.91%) REST
8 8 (7.92%) .NET
9 7 (6.93%) Node.js
9 7 (6.93%) NumPy
10 6 (5.94%) XML
11 5 (4.95%) Django
11 5 (4.95%) J2EE
11 5 (4.95%) Pandas
11 5 (4.95%) scikit-learn
11 5 (4.95%) SciPy
11 5 (4.95%) SOAP
11 5 (4.95%) Spring Boot
12 4 (3.96%) MLlib
Miscellaneous
1 12 (11.88%) Algorithms
2 11 (10.89%) Data Structures
3 10 (9.90%) User Experience
4 9 (8.91%) Analytical Skills
5 7 (6.93%) Greenfield Project
6 5 (4.95%) Blog
6 5 (4.95%) Public Cloud
7 4 (3.96%) Enterprise Software
7 4 (3.96%) Mobile App
7 4 (3.96%) Mobile Payment
8 2 (1.98%) Clustering
8 2 (1.98%) Replication
9 1 (0.99%) Client/Server
9 1 (0.99%) Derivative
9 1 (0.99%) EPoS
9 1 (0.99%) Equities
9 1 (0.99%) Fixed Income
9 1 (0.99%) Management Information System
9 1 (0.99%) PKI
9 1 (0.99%) W3C
Operating Systems
1 26 (25.74%) Linux
2 9 (8.91%) Red Hat Enterprise Linux
3 2 (1.98%) Solaris
3 2 (1.98%) SUSE Linux Enterprise Server
3 2 (1.98%) Unix
4 1 (0.99%) Android
4 1 (0.99%) Kali Linux
4 1 (0.99%) Mac OS X
4 1 (0.99%) Ubuntu
Processes & Methodologies
1 52 (51.49%) Agile Software Development
2 29 (28.71%) DevOps
3 24 (23.76%) Continuous Integration
4 20 (19.80%) Data Science
5 18 (17.82%) Microservices
6 17 (16.83%) Computer Science
6 17 (16.83%) Configuration Management
6 17 (16.83%) Machine Learning
6 17 (16.83%) Scrum
7 13 (12.87%) Continuous Delivery
7 13 (12.87%) Test Automation
8 12 (11.88%) Kanban
9 11 (10.89%) Analytics
10 9 (8.91%) Infrastructure Automation
10 9 (8.91%) Multithreading
10 9 (8.91%) User Stories
11 8 (7.92%) Pair Programming
11 8 (7.92%) TDD
12 7 (6.93%) Artificial Intelligence
12 7 (6.93%) Penetration Testing
Programming Languages
1 50 (49.50%) Python
2 42 (41.58%) Java
3 23 (22.77%) JavaScript
4 18 (17.82%) SQL
5 17 (16.83%) Ruby
6 11 (10.89%) C#
6 11 (10.89%) Perl
6 11 (10.89%) Scala
7 9 (8.91%) Bash Shell
7 9 (8.91%) Go
8 7 (6.93%) C++
8 7 (6.93%) Kotlin
9 4 (3.96%) Java 8
9 4 (3.96%) PHP
9 4 (3.96%) R
10 3 (2.97%) ES6
10 3 (2.97%) PowerShell
11 2 (1.98%) Clojure
11 2 (1.98%) MATLAB
12 1 (0.99%) C
Qualifications
1 15 (14.85%) Degree
2 13 (12.87%) Security Cleared
3 7 (6.93%) PhD
3 7 (6.93%) RHCE
3 7 (6.93%) SC Cleared
4 4 (3.96%) ISEB
4 4 (3.96%) ISTQB
4 4 (3.96%) Master's Degree
5 3 (2.97%) Computer Science Degree
6 2 (1.98%) CHECK Team Member
7 1 (0.99%) AWS Certification
7 1 (0.99%) CEH
7 1 (0.99%) CISSP
7 1 (0.99%) ISTQB Foundation Certification
7 1 (0.99%) Numerate Degree
7 1 (0.99%) OSCP
7 1 (0.99%) SANS
Quality Assurance & Compliance
1 6 (5.94%) QA
2 1 (0.99%) NCSC
2 1 (0.99%) WCAG
System Software
1 21 (20.79%) Docker
2 3 (2.97%) VMware Infrastructure
3 2 (1.98%) Hyper-V
3 2 (1.98%) Veritas Cluster Server
3 2 (1.98%) Veritas Volume Manager
4 1 (0.99%) Varnish
4 1 (0.99%) vSphere
Systems Management
1 12 (11.88%) Ansible
2 11 (10.89%) Kubernetes
3 7 (6.93%) Opscode Chef
3 7 (6.93%) Suricata
4 6 (5.94%) Puppet
5 5 (4.95%) Terraform
6 3 (2.97%) Grafana
6 3 (2.97%) Prometheus
7 2 (1.98%) Kibana
8 1 (0.99%) Nessus
8 1 (0.99%) Nmap
8 1 (0.99%) Packer
Vendors
1 11 (10.89%) Google
2 8 (7.92%) Splunk
3 7 (6.93%) Qualys
3 7 (6.93%) Red Hat
4 6 (5.94%) ServiceNow
5 5 (4.95%) Oracle
6 4 (3.96%) IBM
6 4 (3.96%) Sybase
6 4 (3.96%) VMware
7 3 (2.97%) Bloomberg
7 3 (2.97%) ESRI
7 3 (2.97%) Microsoft
8 2 (1.98%) Citrix
8 2 (1.98%) EMC
8 2 (1.98%) HP
8 2 (1.98%) Reuters
8 2 (1.98%) Tableau
8 2 (1.98%) Veritas
9 1 (0.99%) Cloudera
9 1 (0.99%) Rapid7