Period
to 20 October 2021

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 20 October 2021 with a comparison to the same period in the previous 2 years.

Open Source
England > London
6 months to
20 Oct 2021
Same period 2020 Same period 2019
Rank 90 97 104
Rank change year-on-year +7 +7 -15
Permanent jobs citing Open Source 1,869 677 1,689
As % of all permanent jobs advertised in London 3.69% 3.42% 3.11%
As % of the Processes & Methodologies category 3.86% 3.65% 3.33%
Number of salaries quoted 702 560 1,253
10th Percentile £47,500 £45,000 £38,500
25th Percentile £57,500 £58,750 £53,750
Median annual salary (50th Percentile) £75,000 £72,500 £72,500
Median % change year-on-year +3.45% - +3.57%
75th Percentile £95,000 £90,000 £92,500
90th Percentile £107,500 £107,750 £110,000
England median annual salary £67,500 £62,500 £60,000
% change year-on-year +8.00% +4.17% -

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 48,358 18,553 50,781
As % of all permanent IT jobs advertised in London 95.53% 93.85% 93.59%
Number of salaries quoted 31,492 15,708 41,350
10th Percentile £42,500 £42,500 £36,250
25th Percentile £52,500 £52,500 £47,500
Median annual salary (50th Percentile) £70,000 £70,000 £65,000
Median % change year-on-year - +7.69% +4.00%
75th Percentile £90,000 £86,250 £82,500
90th Percentile £107,500 £107,500 £100,000
England median annual salary £58,000 £55,000 £52,500
% change year-on-year +5.45% +4.76% -

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 20 October 2021.

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 20 October 2021. 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 -80 109 £80,000 +14.29% 78
West London -12 95 £67,500 +3.85% 25
South London +5 49 £72,500 - 6
North London -11 2 £66,772 +46.39%
Open Source
England

For the 6 months to 20 October 2021, 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.

1 933 (49.92%) Agile Software Development
2 804 (43.02%) AWS
3 773 (41.36%) Java
4 732 (39.17%) Python
5 632 (33.81%) JavaScript
6 627 (33.55%) Docker
7 605 (32.37%) Software Engineering
8 583 (31.19%) Microservices
9 570 (30.50%) Kubernetes
9 570 (30.50%) DevOps
10 561 (30.02%) React
11 480 (25.68%) Finance
12 447 (23.92%) SQL
13 438 (23.43%) Node.js
14 437 (23.38%) Social Skills
15 413 (22.10%) REST
16 412 (22.04%) Azure
17 407 (21.78%) TDD
18 396 (21.19%) Git (software)
19 391 (20.92%) Terraform
20 367 (19.64%) Continuous Integration
21 340 (18.19%) Jenkins
22 339 (18.14%) GCP
23 335 (17.92%) Spring
24 313 (16.75%) User Experience
25 311 (16.64%) CSS
26 308 (16.48%) Scrum
27 300 (16.05%) TypeScript
28 298 (15.94%) GitHub
29 291 (15.57%) Test Automation

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
1 124 (6.63%) Apache
2 122 (6.53%) Elasticsearch
3 104 (5.56%) Apache Spark
4 68 (3.64%) Confluence
5 57 (3.05%) Apache Airflow
6 52 (2.78%) CMS
7 42 (2.25%) nginx
8 36 (1.93%) IIS
9 27 (1.44%) Tornado
10 14 (0.75%) Ethereum
11 13 (0.70%) Kentico
12 12 (0.64%) Apache Pulsar
13 10 (0.54%) SharePoint
14 9 (0.48%) Cloud Foundry
14 9 (0.48%) Sitecore CMS
14 9 (0.48%) Tomcat
15 8 (0.43%) MQSeries
16 7 (0.37%) Drupal
17 5 (0.27%) Oracle SOA Suite
17 5 (0.27%) Red Hat Fuse
Applications
1 17 (0.91%) Adobe Illustrator
1 17 (0.91%) Photoshop
2 15 (0.80%) GIMP
3 13 (0.70%) Microsoft Excel
4 11 (0.59%) Chatbot
4 11 (0.59%) Microsoft Office
4 11 (0.59%) Zeplin
5 10 (0.54%) InVision
5 10 (0.54%) Sketch
5 10 (0.54%) Spreadsheet
6 7 (0.37%) Microsoft PowerPoint
7 3 (0.16%) Figma
8 1 (0.054%) Revit
Business Applications
1 31 (1.66%) Distributed Ledger
2 29 (1.55%) R3 Corda
3 11 (0.59%) Payment Gateway
4 7 (0.37%) Summit
5 4 (0.21%) Magento
6 3 (0.16%) Oracle BPM
6 3 (0.16%) Oracle EBS
7 2 (0.11%) IBM Operational Decision Manager
7 2 (0.11%) Workfront
8 1 (0.054%) Dynamics CRM
Cloud Services
1 804 (43.02%) AWS
2 412 (22.04%) Azure
3 339 (18.14%) GCP
4 298 (15.94%) GitHub
5 262 (14.02%) Serverless
6 107 (5.72%) SaaS
7 79 (4.23%) AWS Lambda
8 74 (3.96%) PaaS
9 72 (3.85%) Amazon Kinesis
10 68 (3.64%) npm
11 67 (3.58%) Amazon EC2
12 65 (3.48%) AWS CloudFormation
13 60 (3.21%) Cloud Computing
14 56 (3.00%) Heroku
15 55 (2.94%) Amazon ECS
15 55 (2.94%) Amazon S3
16 45 (2.41%) IaaS
17 44 (2.35%) OpenShift
18 34 (1.82%) Yarn
19 30 (1.61%) Cloud Functions
Communications & Networking
1 75 (4.01%) HTTP
2 58 (3.10%) Broadband
3 49 (2.62%) Internet
4 40 (2.14%) Firewall
5 22 (1.18%) AMQP
6 18 (0.96%) WebEx
7 17 (0.91%) TCP/IP
8 16 (0.86%) Network Security
9 9 (0.48%) SSH
10 8 (0.43%) 5G
10 8 (0.43%) DNS
10 8 (0.43%) SAN
10 8 (0.43%) VPN
10 8 (0.43%) WPA
11 6 (0.32%) Asterisk PBX
11 6 (0.32%) VLAN
11 6 (0.32%) VoIP
12 5 (0.27%) PBX
12 5 (0.27%) Wireless
12 5 (0.27%) Wireshark
Database & Business Intelligence
1 270 (14.45%) NoSQL
1 270 (14.45%) PostgreSQL
2 215 (11.50%) Big Data
3 183 (9.79%) Relational Database
4 141 (7.54%) MySQL
5 128 (6.85%) MongoDB
6 99 (5.30%) Amazon DynamoDB
7 98 (5.24%) Redis
8 80 (4.28%) Hadoop
9 64 (3.42%) BigQuery
10 57 (3.05%) Data Warehouse
11 56 (3.00%) Blockchain
12 53 (2.84%) Amazon Redshift
13 46 (2.46%) SQL Server
14 42 (2.25%) RDBMS
15 35 (1.87%) Apache Accumulo
15 35 (1.87%) Metadata
16 31 (1.66%) Tableau
17 30 (1.61%) Amazon RDS
18 28 (1.50%) SQLite
Development Applications
1 396 (21.19%) Git (software)
2 340 (18.19%) Jenkins
3 155 (8.29%) webpack
4 111 (5.94%) JIRA
5 72 (3.85%) JUnit
6 65 (3.48%) TeamCity
7 62 (3.32%) gulp
8 60 (3.21%) GitLab
9 57 (3.05%) Mocha
10 47 (2.51%) Selenium
11 46 (2.46%) Maven
11 46 (2.46%) Octopus Deploy
12 44 (2.35%) Cypress.io
13 43 (2.30%) Jasmine
13 43 (2.30%) SonarQube
14 42 (2.25%) Team Foundation Server
15 39 (2.09%) Mockito
16 37 (1.98%) Gradle
17 34 (1.82%) IBM UrbanCode
17 34 (1.82%) Travis CI
General
1 480 (25.68%) Finance
2 437 (23.38%) Social Skills
3 195 (10.43%) Analytical Skills
4 176 (9.42%) Retail
5 127 (6.80%) Marketing
6 123 (6.58%) Public Sector
7 120 (6.42%) Banking
8 78 (4.17%) Inclusion and Diversity
9 76 (4.07%) Legal
10 65 (3.48%) Games
11 51 (2.73%) Presentation Skills
12 39 (2.09%) Manufacturing
13 35 (1.87%) Billing
14 33 (1.77%) Back Office
14 33 (1.77%) Law
15 27 (1.44%) Online Betting
16 23 (1.23%) Telecoms
17 21 (1.12%) Organisational Skills
18 14 (0.75%) Automotive
19 12 (0.64%) Front Office
Job Titles
1 602 (32.21%) Developer
2 320 (17.12%) Software Engineer
3 172 (9.20%) Java Developer
4 141 (7.54%) Architect
5 122 (6.53%) Senior Developer
6 114 (6.10%) Senior Software Engineer
7 104 (5.56%) Java Engineer
8 77 (4.12%) Full Stack Developer
9 74 (3.96%) DevOps Engineer
10 57 (3.05%) Solutions Architect
11 51 (2.73%) Scala Engineer
12 50 (2.68%) Software Developer
13 49 (2.62%) Front End Developer (Client-Side Developer)
14 43 (2.30%) Backend Developer
14 43 (2.30%) Data Engineer
15 42 (2.25%) UI Developer
16 39 (2.09%) Lead Software Engineer
16 39 (2.09%) Senior Java Engineer
17 38 (2.03%) Analyst
18 36 (1.93%) Python Developer
Libraries, Frameworks & Software Standards
1 561 (30.02%) React
2 438 (23.43%) Node.js
3 413 (22.10%) REST
4 335 (17.92%) Spring
5 311 (16.64%) CSS
6 272 (14.55%) HTML
7 267 (14.29%) AngularJS
8 265 (14.18%) RESTful
9 214 (11.45%) Kafka
10 211 (11.29%) GraphQL
11 190 (10.17%) Web Services
12 180 (9.63%) Vue.js
13 176 (9.42%) Spring Boot
14 162 (8.67%) HTML5
15 143 (7.65%) Redux
16 140 (7.49%) RabbitMQ
17 134 (7.17%) CSS3
18 126 (6.74%) Hibernate
19 106 (5.67%) .NET
20 95 (5.08%) JSON
Miscellaneous
1 313 (16.75%) User Experience
2 177 (9.47%) Blog
3 159 (8.51%) Algorithms
4 90 (4.82%) Self-Motivation
5 72 (3.85%) Cloud Native
5 72 (3.85%) Data Structures
6 68 (3.64%) Enterprise Software
7 61 (3.26%) Virtual Team
8 56 (3.00%) Greenfield Project
9 49 (2.62%) Social Media
10 47 (2.51%) Mobile App
11 45 (2.41%) Linux Command Line
12 44 (2.35%) Public Cloud
13 38 (2.03%) NHS
14 33 (1.77%) Data Centre
15 29 (1.55%) Management Information System
15 29 (1.55%) Private Cloud
16 24 (1.28%) Video\Live Streaming
17 22 (1.18%) PlayStation
17 22 (1.18%) Video on Demand
Operating Systems
1 291 (15.57%) Linux
2 88 (4.71%) Unix
3 85 (4.55%) Windows
4 62 (3.32%) Android
5 42 (2.25%) Apple iOS
6 34 (1.82%) Mesosphere
7 21 (1.12%) Mac OS X
8 10 (0.54%) Debian
9 7 (0.37%) CentOS
9 7 (0.37%) Red Hat Enterprise Linux
10 6 (0.32%) VMS
11 4 (0.21%) Embedded Linux
11 4 (0.21%) Tizen
11 4 (0.21%) webOS
12 2 (0.11%) Mac OS
13 1 (0.054%) Fedora
13 1 (0.054%) FreeBSD
13 1 (0.054%) SUSE
13 1 (0.054%) Ubuntu
13 1 (0.054%) Windows Server
Processes & Methodologies
1 933 (49.92%) Agile Software Development
2 605 (32.37%) Software Engineering
3 583 (31.19%) Microservices
4 570 (30.50%) DevOps
5 407 (21.78%) TDD
6 367 (19.64%) Continuous Integration
7 308 (16.48%) Scrum
8 291 (15.57%) Test Automation
9 280 (14.98%) Problem-Solving
10 277 (14.82%) Analytics
11 254 (13.59%) Computer Science
12 221 (11.82%) Data Science
13 219 (11.72%) Full Stack Development
14 216 (11.56%) Mentoring
15 215 (11.50%) Machine Learning
16 199 (10.65%) Artificial Intelligence
17 190 (10.17%) Continuous Delivery
18 186 (9.95%) BDD
19 181 (9.68%) Infrastructure as Code
20 174 (9.31%) Fintech
Programming Languages
1 773 (41.36%) Java
2 732 (39.17%) Python
3 632 (33.81%) JavaScript
4 447 (23.92%) SQL
5 300 (16.05%) TypeScript
6 275 (14.71%) Go
7 157 (8.40%) Scala
8 148 (7.92%) C#
9 140 (7.49%) Ruby
10 119 (6.37%) C++
11 98 (5.24%) Kotlin
12 94 (5.03%) ES6
13 89 (4.76%) PHP
14 76 (4.07%) Java 8
15 75 (4.01%) Bash Shell
16 72 (3.85%) R
17 68 (3.64%) C
17 68 (3.64%) Rust
18 48 (2.57%) Clojure
19 47 (2.51%) Groovy
Qualifications
1 281 (15.03%) Degree
2 118 (6.31%) Security Cleared
3 112 (5.99%) Computer Science Degree
4 106 (5.67%) SC Cleared
5 25 (1.34%) Master's Degree
6 18 (0.96%) PhD
7 11 (0.59%) AWS Certification
8 6 (0.32%) DBS Check
9 5 (0.27%) ISTQB
10 4 (0.21%) A+ Certification
10 4 (0.21%) CISSP
11 3 (0.16%) Microsoft Certification
12 2 (0.11%) CompTIA Security+
12 2 (0.11%) CREST Certified
12 2 (0.11%) CSSLP
12 2 (0.11%) DV Cleared
12 2 (0.11%) RHCE
13 1 (0.054%) CHECK Team Leader
13 1 (0.054%) GXPN
13 1 (0.054%) Tigerscheme
Quality Assurance & Compliance
1 123 (6.58%) QA
2 75 (4.01%) Accessibility
3 39 (2.09%) GDPR
4 27 (1.44%) SLA
5 25 (1.34%) Data Quality
6 15 (0.80%) PSD2
7 13 (0.70%) WCAG
8 12 (0.64%) WAI
9 9 (0.48%) HMG Security Policy Framework
10 8 (0.43%) NCSC
11 7 (0.37%) NIST
12 6 (0.32%) PCI DSS
13 3 (0.16%) ISO/IEC 27001
14 2 (0.11%) Sarbanes-Oxley
15 1 (0.054%) Cyber Essentials
15 1 (0.054%) ISO 31000
15 1 (0.054%) ISO/IEC 27005
15 1 (0.054%) PMO
15 1 (0.054%) SOC 2
System Software
1 627 (33.55%) Docker
2 24 (1.28%) Postfix
3 19 (1.02%) Apache ZooKeeper
4 16 (0.86%) Virtual Machines
5 13 (0.70%) KVM
6 12 (0.64%) Ceph
7 11 (0.59%) etcd
7 11 (0.59%) ISA Server
8 10 (0.54%) VMware Infrastructure
9 9 (0.48%) Active Directory
10 5 (0.27%) LXC
11 4 (0.21%) iptables
12 3 (0.16%) Hyper-V
12 3 (0.16%) NFS
12 3 (0.16%) QEMU
12 3 (0.16%) Varnish
12 3 (0.16%) VMware ESXi
13 2 (0.11%) Kamailio
13 2 (0.11%) vSphere
13 2 (0.11%) Xen
Systems Management
1 570 (30.50%) Kubernetes
2 391 (20.92%) Terraform
3 205 (10.97%) Ansible
4 156 (8.35%) Puppet
5 140 (7.49%) Prometheus
6 109 (5.83%) Opscode Chef
7 101 (5.40%) Grafana
8 43 (2.30%) Consul
9 34 (1.82%) Automic
9 34 (1.82%) Docker Swarm
10 32 (1.71%) Kibana
11 29 (1.55%) Hadoop YARN
12 21 (1.12%) Istio
13 20 (1.07%) logstash
14 18 (0.96%) Nagios
15 14 (0.75%) ZABBIX
16 13 (0.70%) Packer
17 12 (0.64%) linkerd
18 9 (0.48%) Galera Cluster
19 6 (0.32%) CSIRT
Vendors
1 155 (8.29%) Google
2 126 (6.74%) Microsoft
3 113 (6.05%) Oracle
4 41 (2.19%) Splunk
5 32 (1.71%) Adobe
5 32 (1.71%) Apple
6 21 (1.12%) Netlify
6 21 (1.12%) YouTube
7 19 (1.02%) Red Hat
8 17 (0.91%) LexisNexis
8 17 (0.91%) Twitter
9 16 (0.86%) Cisco
9 16 (0.86%) SAP
10 15 (0.80%) Percona
11 14 (0.75%) Salesforce.com
11 14 (0.75%) Samsung
12 13 (0.70%) New Relic
12 13 (0.70%) VMware
13 12 (0.64%) Cadence
14 10 (0.54%) BT