Period
to 21 October 2020

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Open Source skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Open Source over the 6 months to 21 October 2020 with a comparison to the same period in the previous 2 years.

Open Source
Central London > City of London
6 months to
21 Oct 2020
Same period 2019 Same period 2018
Rank 93 120 98
Rank change year-on-year +27 -22 +34
Permanent jobs citing Open Source 109 263 371
As % of all permanent jobs advertised in the City of London 3.01% 2.63% 3.36%
As % of the Processes & Methodologies category 3.22% 2.81% 3.61%
Number of salaries quoted 100 274 341
Median annual salary £70,000 £75,000 £67,500
Median salary % change year-on-year -6.67% +11.11% +3.85%
10th Percentile £48,625 £36,625 £42,000
90th Percentile £100,000 £107,500 £98,750
Central London median annual salary £70,000 £75,000 £67,500
% change year-on-year -6.67% +11.11% +3.85%

Open Source is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Permanent vacancies with a requirement for process or methodology skills 3,387 9,347 10,275
As % of all permanent IT jobs advertised in the City of London 93.54% 93.51% 92.98%
Number of salaries quoted 2,978 8,158 9,184
Median annual salary £70,000 £67,500 £65,000
Median salary % change year-on-year +3.70% +3.85% +8.33%
10th Percentile £45,000 £38,250 £36,750
90th Percentile £100,000 £96,250 £95,000
Central London median annual salary £70,000 £65,000 £62,500
% change year-on-year +7.69% +4.00% +4.17%

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
Salary Trend in the City of London

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

Salary trend for Open Source in the City of London

Open Source
Salary Histogram in the City of London

Salary distribution for jobs citing Open Source in the City of London over the 6 months to 21 October 2020.

Salary histogram for Open Source in the City of London

For the 6 months to 21 October 2020, IT 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 permanent job ads across the City of London region with a requirement for Open Source.

1 74 (67.89%) Java
2 55 (50.46%) Agile Software Development
3 42 (38.53%) Finance
4 41 (37.61%) Microservices
5 40 (36.70%) Python
6 39 (35.78%) Docker
7 38 (34.86%) JavaScript
8 37 (33.94%) DevOps
9 34 (31.19%) AWS
10 29 (26.61%) Kubernetes
11 26 (23.85%) Degree
12 25 (22.94%) Jenkins
13 22 (20.18%) Java 8
13 22 (20.18%) Azure
14 20 (18.35%) Continuous Integration
15 19 (17.43%) Test Automation
16 18 (16.51%) Linux
17 17 (15.60%) HTML
18 16 (14.68%) OO
18 16 (14.68%) AngularJS
18 16 (14.68%) API Testing
19 15 (13.76%) Node.js
19 15 (13.76%) Google
20 14 (12.84%) Artificial Intelligence
20 14 (12.84%) NoSQL
20 14 (12.84%) Git (software)
20 14 (12.84%) RESTful
20 14 (12.84%) CSS
20 14 (12.84%) TDD
20 14 (12.84%) Terraform

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 10 (9.17%) Apache Spark
2 3 (2.75%) Apache
2 3 (2.75%) Confluence
2 3 (2.75%) Red Hat Fuse
3 1 (0.92%) Camunda
3 1 (0.92%) Drupal
Applications
1 2 (1.83%) Microsoft Excel
2 1 (0.92%) Chatbot
Cloud Services
1 34 (31.19%) AWS
2 22 (20.18%) Azure
3 9 (8.26%) Serverless
4 8 (7.34%) GCP
5 7 (6.42%) AWS Lambda
6 4 (3.67%) PaaS
7 3 (2.75%) AWS CloudFormation
7 3 (2.75%) Cloud Computing
8 2 (1.83%) IaaS
8 2 (1.83%) Office 365
9 1 (0.92%) Azure Functions
9 1 (0.92%) GitHub
9 1 (0.92%) iPaaS
Communications & Networking
1 8 (7.34%) Wireless
2 5 (4.59%) TCP/IP
3 3 (2.75%) HTTP
3 3 (2.75%) Network Security
4 2 (1.83%) Firewall
4 2 (1.83%) HTTPS
4 2 (1.83%) Kerberos
4 2 (1.83%) SSL
4 2 (1.83%) X.509
5 1 (0.92%) DNS
Database & Business Intelligence
1 14 (12.84%) NoSQL
2 11 (10.09%) Hadoop
3 10 (9.17%) Big Data
4 8 (7.34%) Apache Hive
5 5 (4.59%) KDB
5 5 (4.59%) SQL Server
6 4 (3.67%) MySQL
7 3 (2.75%) Data Warehouse
7 3 (2.75%) MongoDB
7 3 (2.75%) Relational Database
8 2 (1.83%) PostgreSQL
9 1 (0.92%) Azure SQL Database
9 1 (0.92%) Cosmos DB
9 1 (0.92%) HBase
9 1 (0.92%) RDBMS
9 1 (0.92%) Sqoop
9 1 (0.92%) Tick Data
Development Applications
1 25 (22.94%) Jenkins
2 14 (12.84%) Git (software)
3 10 (9.17%) Selenium
4 9 (8.26%) Cucumber
5 8 (7.34%) WebDriver
6 7 (6.42%) JUnit
7 6 (5.50%) JMeter
7 6 (5.50%) TeamCity
8 5 (4.59%) Appium
8 5 (4.59%) Atlassian Bamboo
8 5 (4.59%) Charles Proxy
8 5 (4.59%) JIRA
8 5 (4.59%) Mockito
9 3 (2.75%) GitLab
9 3 (2.75%) Jasmine
9 3 (2.75%) Maven
9 3 (2.75%) PhantomJS
10 2 (1.83%) Gatling
10 2 (1.83%) GCC
10 2 (1.83%) Gradle
General
1 42 (38.53%) Finance
2 8 (7.34%) Games
2 8 (7.34%) Law
3 5 (4.59%) Banking
3 5 (4.59%) Public Sector
4 4 (3.67%) Advertising
5 3 (2.75%) Financial Institution
5 3 (2.75%) Front Office
6 2 (1.83%) Investment Banking
Job Titles
1 51 (46.79%) Developer
2 33 (30.28%) Java Developer
3 8 (7.34%) Architect
4 7 (6.42%) AWS DevOps
4 7 (6.42%) DevOps Engineer
5 5 (4.59%) Automation Tester
5 5 (4.59%) Python Developer
5 5 (4.59%) SC Cleared Java Developer
5 5 (4.59%) Senior Manager
5 5 (4.59%) Solutions Architect
5 5 (4.59%) Tester
6 4 (3.67%) Analyst
6 4 (3.67%) AWS DevOps Engineer
6 4 (3.67%) AWS Engineer
6 4 (3.67%) Linux Engineer
6 4 (3.67%) Systems Engineer
7 3 (2.75%) Azure Engineer
7 3 (2.75%) Electronic Trading Developer
7 3 (2.75%) Java Automation Tester
7 3 (2.75%) Linux Systems Engineer
Libraries, Frameworks & Software Standards
1 17 (15.60%) HTML
2 16 (14.68%) AngularJS
3 15 (13.76%) Node.js
4 14 (12.84%) CSS
4 14 (12.84%) RESTful
5 13 (11.93%) Kafka
5 13 (11.93%) React
6 11 (10.09%) .NET
6 11 (10.09%) REST
7 10 (9.17%) HTML5
7 10 (9.17%) Spring
8 9 (8.26%) .NET Framework
8 9 (8.26%) Web Services
9 8 (7.34%) Apache Camel
9 8 (7.34%) JMS
10 5 (4.59%) JAX-RS
10 5 (4.59%) Protocol Buffers
10 5 (4.59%) Sensu
10 5 (4.59%) Spring Integration
10 5 (4.59%) ZeroMQ
Miscellaneous
1 8 (7.34%) Mobile App
2 7 (6.42%) Analytical Skills
3 6 (5.50%) Enterprise Software
4 4 (3.67%) Greenfield Project
4 4 (3.67%) Virtual Team
5 3 (2.75%) Blog
5 3 (2.75%) Clustering
5 3 (2.75%) Derivative
5 3 (2.75%) EPoS
6 2 (1.83%) Fixed Income
6 2 (1.83%) PKI
6 2 (1.83%) User Experience
7 1 (0.92%) Algorithms
7 1 (0.92%) Cloud Native
7 1 (0.92%) Data Structures
7 1 (0.92%) Management Information System
7 1 (0.92%) Self-Motivation
Operating Systems
1 18 (16.51%) Linux
2 7 (6.42%) Windows
3 5 (4.59%) CentOS
3 5 (4.59%) Fedora
3 5 (4.59%) Red Hat Enterprise Linux
3 5 (4.59%) Ubuntu
4 3 (2.75%) Android
4 3 (2.75%) Unix
5 1 (0.92%) Apple iOS
Processes & Methodologies
1 55 (50.46%) Agile Software Development
2 41 (37.61%) Microservices
3 37 (33.94%) DevOps
4 20 (18.35%) Continuous Integration
5 19 (17.43%) Test Automation
6 16 (14.68%) API Testing
6 16 (14.68%) OO
7 14 (12.84%) Artificial Intelligence
7 14 (12.84%) TDD
8 13 (11.93%) Computer Science
9 12 (11.01%) OWASP
10 11 (10.09%) Continuous Delivery
10 11 (10.09%) Infrastructure as Code
10 11 (10.09%) Project Delivery
11 10 (9.17%) Analytics
11 10 (9.17%) Open Source Development
11 10 (9.17%) Penetration Testing
11 10 (9.17%) Scrum
12 9 (8.26%) Information Security
12 9 (8.26%) Regression Testing
Programming Languages
1 74 (67.89%) Java
2 40 (36.70%) Python
3 38 (34.86%) JavaScript
4 22 (20.18%) Java 8
5 12 (11.01%) C#
5 12 (11.01%) SQL
6 11 (10.09%) Kotlin
7 10 (9.17%) ES6
7 10 (9.17%) Scala
8 9 (8.26%) PHP
8 9 (8.26%) TypeScript
9 8 (7.34%) Bash Shell
9 8 (7.34%) Ruby
10 6 (5.50%) C++
11 5 (4.59%) C
12 3 (2.75%) Go
13 2 (1.83%) Apex Code
13 2 (1.83%) PowerShell
13 2 (1.83%) VB.NET
13 2 (1.83%) VBA
Qualifications
1 26 (23.85%) Degree
2 9 (8.26%) CISM
2 9 (8.26%) CISSP
2 9 (8.26%) CSSLP
3 8 (7.34%) ISEB
3 8 (7.34%) ISTQB
4 7 (6.42%) Computer Science Degree
5 6 (5.50%) Security Cleared
6 5 (4.59%) SC Cleared
7 3 (2.75%) TOGAF Certification
8 2 (1.83%) Master's Degree
8 2 (1.83%) Numerate Degree
Quality Assurance & Compliance
1 12 (11.01%) QA
2 9 (8.26%) NIST
3 1 (0.92%) MiFID
3 1 (0.92%) SLA
System Software
1 39 (35.78%) Docker
2 1 (0.92%) HDFS
Systems Management
1 29 (26.61%) Kubernetes
2 14 (12.84%) Ansible
2 14 (12.84%) Terraform
3 10 (9.17%) Puppet
4 5 (4.59%) Nagios
4 5 (4.59%) Opscode Chef
5 2 (1.83%) HP Fortify
5 2 (1.83%) Single Sign-On
6 1 (0.92%) Ambari
6 1 (0.92%) Hadoop YARN
6 1 (0.92%) Oozie
Vendors
1 15 (13.76%) Google
2 5 (4.59%) ION Trading
2 5 (4.59%) Microsoft
3 4 (3.67%) Oracle
4 2 (1.83%) Black Duck
4 2 (1.83%) HP
4 2 (1.83%) NVIDIA
4 2 (1.83%) Perforce
4 2 (1.83%) Ping Identity
4 2 (1.83%) Red Hat
4 2 (1.83%) Salesforce.com
4 2 (1.83%) Veracode
5 1 (0.92%) Bloomberg
5 1 (0.92%) Cisco
5 1 (0.92%) Cloudera
5 1 (0.92%) Hortonworks
5 1 (0.92%) Qualys
5 1 (0.92%) Splunk
5 1 (0.92%) Tradeweb
5 1 (0.92%) Xamarin