Period
to 6 April 2020

The following table provides summary statistics for permanent job vacancies advertised in 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 6 April 2020 with a comparison to the same period in the previous 2 years.

Open Source
England > London
6 months to
6 Apr 2020
Same period 2019 Same period 2018
Rank 100 96 89
Rank change year-on-year -4 -7 -1
Permanent jobs citing Open Source 1,535 2,038 2,455
As % of all permanent jobs advertised in London 3.19% 3.32% 3.51%
As % of the Processes & Methodologies category 3.42% 3.58% 3.76%
Number of salaries quoted 1,194 1,593 2,048
Median annual salary £73,750 £70,000 £67,500
Median salary % change year-on-year +5.36% +3.70% +3.85%
10th Percentile £42,500 £42,500 £42,500
90th Percentile £127,500 £95,000 £98,750
England median annual salary £65,000 £60,000 £60,000
% change year-on-year +8.33% - +9.09%

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 London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Permanent vacancies with a requirement for process or methodology skills 44,948 56,936 65,255
As % of all permanent IT jobs advertised in London 93.49% 92.71% 93.27%
Number of salaries quoted 36,083 46,055 53,814
Median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% -
10th Percentile £37,500 £36,250 £35,000
90th Percentile £100,000 £95,000 £92,500
England median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% +1.52%

Open Source
Job Vacancy Trend in London

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

Job vacancy trend for Open Source in London

Open Source
Salary Trend in London

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

Salary trend for Open Source in London

Open Source
Salary Histogram in London

Salary distribution for jobs citing Open Source in London over the 6 months to 6 April 2020.

Salary histogram for Open Source in London

Open Source
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Open Source within the London region over the 6 months to 6 April 2020. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +7 322 £75,000 - 56
South London -18 39 £66,250 +1.92% 7
East London +31 27 £82,500 +17.86% 8
West London -34 26 £65,000 +4.84% 24
North London -7 3 £43,279 +1.77% 3
Open Source
England

For the 6 months to 6 April 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 London region with a requirement for Open Source.

1 886 (57.72%) Agile Software Development
2 740 (48.21%) Java
3 729 (47.49%) AWS
4 563 (36.68%) JavaScript
5 512 (33.36%) Docker
6 499 (32.51%) Python
7 486 (31.66%) Software Engineering
8 485 (31.60%) Finance
9 484 (31.53%) DevOps
10 475 (30.94%) Azure
11 428 (27.88%) Kubernetes
12 414 (26.97%) Microservices
13 367 (23.91%) Linux
14 344 (22.41%) Git (software)
15 341 (22.21%) React
16 307 (20.00%) Node.js
17 305 (19.87%) TDD
18 300 (19.54%) GCP
19 278 (18.11%) SQL
20 272 (17.72%) NoSQL
21 267 (17.39%) AngularJS
22 258 (16.81%) Mentoring
23 250 (16.29%) C#
24 229 (14.92%) Web Services
24 229 (14.92%) Analytics
25 226 (14.72%) C++
26 221 (14.40%) HTML
27 211 (13.75%) CSS
28 208 (13.55%) Scrum
29 201 (13.09%) BDD

Open Source
Co-occurring IT Skills in 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 91 (5.93%) Apache Spark
2 62 (4.04%) Elasticsearch
3 53 (3.45%) Confluence
4 40 (2.61%) Apache
5 27 (1.76%) IIS
6 26 (1.69%) Tomcat
7 21 (1.37%) CMS
8 18 (1.17%) OpenStack
9 17 (1.11%) Cloud Foundry
10 16 (1.04%) WordPress
11 14 (0.91%) Smallworld
12 12 (0.78%) Adobe Experience Manager
12 12 (0.78%) GeoServer
12 12 (0.78%) Jetty
13 11 (0.72%) ArcGIS
14 10 (0.65%) Apache Solr
14 10 (0.65%) JBoss
14 10 (0.65%) Oracle Spatial
15 9 (0.59%) Red Hat Fuse
15 9 (0.59%) WebLogic
Applications
1 45 (2.93%) Microsoft Excel
2 15 (0.98%) Microsoft Office
3 14 (0.91%) AutoCAD
4 4 (0.26%) Chatbot
5 3 (0.20%) Microsoft PowerPoint
6 2 (0.13%) MS Visio
6 2 (0.13%) Photoshop
7 1 (0.065%) Adobe Creative Suite
7 1 (0.065%) Microsoft Project
7 1 (0.065%) Spreadsheet
Business Applications
1 25 (1.63%) FINCAD Analytics
2 9 (0.59%) Distributed Ledger
3 7 (0.46%) Dynamics CRM
4 4 (0.26%) Magento
4 4 (0.26%) R3 Corda
5 3 (0.20%) SAP ERP
6 2 (0.13%) Oracle Applications
7 1 (0.065%) Payment Gateway
7 1 (0.065%) Shopify
Cloud Services
1 729 (47.49%) AWS
2 475 (30.94%) Azure
3 300 (19.54%) GCP
4 80 (5.21%) GitHub
5 68 (4.43%) OpenShift
6 64 (4.17%) Serverless
7 41 (2.67%) Amazon SQS
8 40 (2.61%) Amazon ECS
9 37 (2.41%) PaaS
10 36 (2.35%) AWS Lambda
11 35 (2.28%) SaaS
12 30 (1.95%) Cloud Computing
13 29 (1.89%) Slack
14 28 (1.82%) Amazon EC2
15 24 (1.56%) Firebase
16 23 (1.50%) Azure Functions
16 23 (1.50%) IaaS
17 21 (1.37%) Amazon CloudWatch
17 21 (1.37%) Amazon EKS
17 21 (1.37%) AWS CloudFormation
Communications & Networking
1 51 (3.32%) Firewall
2 37 (2.41%) Internet
3 24 (1.56%) DNS
3 24 (1.56%) HTTP
4 19 (1.24%) TCP/IP
5 16 (1.04%) Broadband
6 14 (0.91%) GPON
6 14 (0.91%) VoIP
7 13 (0.85%) Asterisk PBX
7 13 (0.85%) SSL
8 11 (0.72%) Network Security
9 10 (0.65%) VPN
10 9 (0.59%) Wireshark
11 8 (0.52%) PBX
12 6 (0.39%) Cisco ISE
12 6 (0.39%) Cisco Nexus
12 6 (0.39%) DHCP
12 6 (0.39%) LAN
12 6 (0.39%) RTP
12 6 (0.39%) Wi-Fi
Database & Business Intelligence
1 272 (17.72%) NoSQL
2 146 (9.51%) PostgreSQL
3 145 (9.45%) Big Data
4 114 (7.43%) MySQL
5 105 (6.84%) MongoDB
6 88 (5.73%) Hadoop
7 70 (4.56%) SQL Server
8 65 (4.23%) Redis
9 52 (3.39%) Relational Database
10 45 (2.93%) Amazon Redshift
11 38 (2.48%) Amazon DynamoDB
12 29 (1.89%) Apache Hive
12 29 (1.89%) GIS
13 25 (1.63%) Amazon Athena
13 25 (1.63%) InfluxDB
13 25 (1.63%) RDBMS
14 20 (1.30%) Cosmos DB
14 20 (1.30%) Data Warehouse
15 18 (1.17%) Blockchain
16 13 (0.85%) Flink
Development Applications
1 344 (22.41%) Git (software)
2 172 (11.21%) Jenkins
3 81 (5.28%) Artifactory
3 81 (5.28%) JIRA
4 51 (3.32%) Grunt
5 48 (3.13%) Maven
6 47 (3.06%) Cucumber
7 44 (2.87%) gulp
8 39 (2.54%) Visual Studio
9 35 (2.28%) Selenium
10 32 (2.08%) Gradle
11 31 (2.02%) Bitbucket
11 31 (2.02%) JUnit
12 26 (1.69%) GitLab
13 25 (1.63%) Atlassian Bamboo
14 23 (1.50%) TeamCity
15 22 (1.43%) Octopus Deploy
16 20 (1.30%) Android Studio
16 20 (1.30%) SonarQube
17 19 (1.24%) Mockito
General
1 485 (31.60%) Finance
2 187 (12.18%) Banking
3 167 (10.88%) Front Office
4 120 (7.82%) Public Sector
5 91 (5.93%) Marketing
6 87 (5.67%) Retail
7 46 (3.00%) Investment Banking
8 40 (2.61%) Telecoms
9 39 (2.54%) Games
10 29 (1.89%) Law
11 19 (1.24%) Financial Institution
12 13 (0.85%) Publishing
13 12 (0.78%) Advertising
14 8 (0.52%) Housing Association
15 7 (0.46%) Legal
16 6 (0.39%) Billing
17 4 (0.26%) Manufacturing
17 4 (0.26%) Pharmaceutical
18 3 (0.20%) Retail Banking
19 2 (0.13%) Portuguese Language
Job Titles
1 467 (30.42%) Developer
2 251 (16.35%) Software Engineer
3 152 (9.90%) Architect
4 133 (8.66%) DevOps Engineer
5 130 (8.47%) Java Developer
6 129 (8.40%) Java Engineer
7 123 (8.01%) Java Software Engineer
8 115 (7.49%) Senior Developer
9 101 (6.58%) Front End Developer (Client-Side Developer)
10 82 (5.34%) Senior Software Engineer
11 75 (4.89%) Solutions Architect
12 64 (4.17%) Senior Front-End Developer
13 46 (3.00%) Engineering Manager
13 46 (3.00%) Full Stack Developer
14 43 (2.80%) JavaScript Developer
15 41 (2.67%) C++ Developer
16 39 (2.54%) Senior Java Engineer
17 37 (2.41%) Front Office Developer
17 37 (2.41%) Junior
17 37 (2.41%) Senior Java Software Engineer
Libraries, Frameworks & Software Standards
1 341 (22.21%) React
2 307 (20.00%) Node.js
3 267 (17.39%) AngularJS
4 229 (14.92%) Web Services
5 221 (14.40%) HTML
6 211 (13.75%) CSS
7 187 (12.18%) RESTful
8 171 (11.14%) .NET
9 167 (10.88%) REST
10 128 (8.34%) Kafka
11 127 (8.27%) Spring
12 108 (7.04%) HTML5
13 97 (6.32%) Redux
14 82 (5.34%) J2EE
15 79 (5.15%) Sass
16 77 (5.02%) CSS3
17 75 (4.89%) Ember.js
18 58 (3.78%) Ruby on Rails
19 57 (3.71%) Backbone.js
20 54 (3.52%) Elastic Stack
Miscellaneous
1 158 (10.29%) Blog
1 158 (10.29%) Fixed Income
2 151 (9.84%) Derivative
2 151 (9.84%) Hedge funds
3 146 (9.51%) Equities
4 137 (8.93%) Public Cloud
5 108 (7.04%) Equity Derivative
6 106 (6.91%) Greenfield Project
7 87 (5.67%) Mobile App
8 78 (5.08%) Algorithms
9 70 (4.56%) Cloud Native
10 58 (3.78%) Exotic Derivative
11 51 (3.32%) User Experience
12 45 (2.93%) Analytical Skills
13 39 (2.54%) Foreign Exchange (FX)
14 38 (2.48%) Data Structures
15 36 (2.35%) Self-Motivation
16 34 (2.21%) Data Centre
16 34 (2.21%) Enterprise Software
17 20 (1.30%) Life Science
Operating Systems
1 367 (23.91%) Linux
2 123 (8.01%) Mac OS X
3 114 (7.43%) Android
4 100 (6.51%) Apple iOS
5 97 (6.32%) Unix
6 95 (6.19%) Windows
7 48 (3.13%) CentOS
8 20 (1.30%) Ubuntu
9 15 (0.98%) Red Hat Enterprise Linux
10 14 (0.91%) Windows Server
11 11 (0.72%) Debian
12 4 (0.26%) Mesosphere
13 3 (0.20%) Fedora
13 3 (0.20%) Windows 10
14 2 (0.13%) FreeBSD
15 1 (0.065%) Amazon Linux
15 1 (0.065%) SUSE
15 1 (0.065%) VMS
15 1 (0.065%) Windows Server 2016
Processes & Methodologies
1 886 (57.72%) Agile Software Development
2 486 (31.66%) Software Engineering
3 484 (31.53%) DevOps
4 414 (26.97%) Microservices
5 305 (19.87%) TDD
6 258 (16.81%) Mentoring
7 229 (14.92%) Analytics
8 208 (13.55%) Scrum
9 201 (13.09%) BDD
10 185 (12.05%) Test Automation
11 183 (11.92%) Artificial Intelligence
12 179 (11.66%) Investment Management
13 174 (11.34%) Asset Management
14 172 (11.21%) Continuous Integration
15 162 (10.55%) OO
16 155 (10.10%) Computer Science
16 155 (10.10%) Problem-Solving
17 153 (9.97%) Machine Learning
18 146 (9.51%) Decision-Making
19 137 (8.93%) Fintech
Programming Languages
1 740 (48.21%) Java
2 563 (36.68%) JavaScript
3 499 (32.51%) Python
4 278 (18.11%) SQL
5 250 (16.29%) C#
6 226 (14.72%) C++
7 187 (12.18%) Ruby
8 166 (10.81%) Kotlin
9 142 (9.25%) Java 8
10 108 (7.04%) Scala
11 101 (6.58%) PHP
12 85 (5.54%) Bash Shell
13 82 (5.34%) C
13 82 (5.34%) TypeScript
14 71 (4.63%) R
15 60 (3.91%) Apple Swift
16 42 (2.74%) Go
17 37 (2.41%) ES6
18 24 (1.56%) PowerShell
19 23 (1.50%) Objective-C
Qualifications
1 163 (10.62%) Degree
2 71 (4.63%) Computer Science Degree
3 50 (3.26%) Security Cleared
4 36 (2.35%) SC Cleared
5 18 (1.17%) PhD
6 16 (1.04%) Master's Degree
7 13 (0.85%) Cisco Certification
8 12 (0.78%) AWS Certification
9 9 (0.59%) CCNP
9 9 (0.59%) Microsoft Certification
9 9 (0.59%) SANS
10 8 (0.52%) DV Cleared
11 7 (0.46%) JNCIE
11 7 (0.46%) JNCIP
12 6 (0.39%) Numerate Degree
13 5 (0.33%) MBA
13 5 (0.33%) PMI Certification
13 5 (0.33%) PMP
14 4 (0.26%) CCNA
14 4 (0.26%) MCSA
Quality Assurance & Compliance
1 85 (5.54%) QA
2 11 (0.72%) Data Quality
3 8 (0.52%) GDPR
4 7 (0.46%) Government Security Classifications
4 7 (0.46%) NCSC
5 4 (0.26%) NIST
6 3 (0.20%) SLA
7 1 (0.065%) ISO/IEC 27001
7 1 (0.065%) PCI DSS
7 1 (0.065%) PMO
System Software
1 512 (33.36%) Docker
2 18 (1.17%) Apache ZooKeeper
3 17 (1.11%) Active Directory
4 12 (0.78%) Kamailio
5 9 (0.59%) Hyper-V
6 8 (0.52%) Postfix
6 8 (0.52%) VMware Infrastructure
7 7 (0.46%) BIND 9
8 6 (0.39%) Firmware
9 5 (0.33%) Oracle RAC
10 4 (0.26%) Virtual Machines
11 2 (0.13%) iptables
11 2 (0.13%) KVM
11 2 (0.13%) vSphere
12 1 (0.065%) HDFS
12 1 (0.065%) LXC
12 1 (0.065%) Varnish
12 1 (0.065%) VMware ESXi
Systems Management
1 428 (27.88%) Kubernetes
2 144 (9.38%) Ansible
3 139 (9.06%) Terraform
4 99 (6.45%) Puppet
5 64 (4.17%) Mesos
6 63 (4.10%) Opscode Chef
7 45 (2.93%) Grafana
8 38 (2.48%) Marathon
9 30 (1.95%) Prometheus
10 25 (1.63%) Consul
10 25 (1.63%) Packer
11 18 (1.17%) Docker Swarm
11 18 (1.17%) Salt
12 14 (0.91%) Graphite
13 13 (0.85%) ZABBIX
14 11 (0.72%) Single Sign-On
15 9 (0.59%) Istio
16 8 (0.52%) Rancher
17 7 (0.46%) Nagios
17 7 (0.46%) RANCID
Vendors
1 181 (11.79%) Google
2 166 (10.81%) Microsoft
3 60 (3.91%) Oracle
4 36 (2.35%) Red Hat
5 28 (1.82%) VMware
6 25 (1.63%) Atlassian
6 25 (1.63%) Bloomberg
7 21 (1.37%) Splunk
8 16 (1.04%) AppDynamics
9 15 (0.98%) Mapinfo
9 15 (0.98%) New Relic
9 15 (0.98%) Symantec
10 14 (0.91%) BT
10 14 (0.91%) Openreach
10 14 (0.91%) Virgin Media
11 13 (0.85%) Adobe
11 13 (0.85%) Apple
12 12 (0.78%) ESRI
12 12 (0.78%) MuleSoft
13 10 (0.65%) Black Duck