Period
to 24 February 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 24 February 2021 with a comparison to the same period in the previous 2 years.

Open Source
England > London
6 months to
24 Feb 2021
Same period 2020 Same period 2019
Rank 92 98 101
Rank change year-on-year +6 +3 -14
Permanent jobs citing Open Source 959 1,669 2,006
As % of all permanent jobs advertised in London 3.48% 3.30% 3.24%
As % of the Processes & Methodologies category 3.72% 3.53% 3.49%
Number of salaries quoted 947 1,304 1,487
Median annual salary £75,000 £75,000 £70,000
Median salary % change year-on-year - +7.14% +3.70%
10th Percentile £45,000 £42,500 £41,250
90th Percentile £107,500 £127,500 £95,000
England median annual salary £67,500 £65,000 £60,000
% change year-on-year +3.85% +8.33% -

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 25,769 47,271 57,445
As % of all permanent IT jobs advertised in London 93.58% 93.47% 92.83%
Number of salaries quoted 21,257 38,345 46,973
Median annual salary £70,000 £65,000 £62,500
Median salary % change year-on-year +7.69% +4.00% +4.17%
10th Percentile £42,500 £37,500 £35,000
90th Percentile £103,750 £100,000 £95,000
England median annual salary £55,000 £55,000 £52,500
% change year-on-year - +4.76% +5.00%

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 24 February 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 24 February 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 +9 173 £72,500 -3.33% 74
South London +21 37 £65,000 -7.14% 6
West London +63 14 £60,000 +2.13% 31
East London +6 12 £72,500 -12.12% 8
North London +29 1 £42,680 -1.39%
Open Source
England

For the 6 months to 24 February 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.

1 570 (59.44%) Agile Software Development
2 471 (49.11%) AWS
3 408 (42.54%) Java
4 365 (38.06%) Python
5 300 (31.28%) Azure
6 291 (30.34%) JavaScript
7 290 (30.24%) Software Engineering
8 254 (26.49%) DevOps
9 232 (24.19%) Finance
10 218 (22.73%) React
11 198 (20.65%) Microservices
12 194 (20.23%) AngularJS
13 193 (20.13%) GCP
14 189 (19.71%) Docker
15 177 (18.46%) Continuous Integration
16 173 (18.04%) Linux
17 167 (17.41%) Kubernetes
18 155 (16.16%) Web Services
19 150 (15.64%) SQL
19 150 (15.64%) Git (software)
20 146 (15.22%) Blog
21 143 (14.91%) Test Automation
22 142 (14.81%) TDD
23 139 (14.49%) NoSQL
24 138 (14.39%) .NET
25 133 (13.87%) Serverless
26 128 (13.35%) Degree
27 124 (12.93%) Jenkins
28 115 (11.99%) Analytics
29 114 (11.89%) Computer Science

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 56 (5.84%) Apache Spark
2 38 (3.96%) Confluence
3 36 (3.75%) Apache
4 27 (2.82%) Red Hat Fuse
5 23 (2.40%) Elasticsearch
5 23 (2.40%) JBoss
6 21 (2.19%) Apache Airflow
7 20 (2.09%) Apache ServiceMix
7 20 (2.09%) CMS
8 14 (1.46%) Sitecore CMS
9 9 (0.94%) Luigi
9 9 (0.94%) nginx
10 8 (0.83%) Jupyter
10 8 (0.83%) Tomcat
11 7 (0.73%) Headless CMS
12 6 (0.63%) Drupal
12 6 (0.63%) IIS
12 6 (0.63%) SharePoint
12 6 (0.63%) WebSphere
12 6 (0.63%) WordPress
Applications
1 22 (2.29%) Adobe XD
1 22 (2.29%) Figma
1 22 (2.29%) Sketch
2 5 (0.52%) Chatbot
3 3 (0.31%) Microsoft Office
4 2 (0.21%) Microsoft Excel
5 1 (0.10%) Revit
Business Applications
1 15 (1.56%) Oracle Applications
2 3 (0.31%) IBM Operational Decision Manager
3 1 (0.10%) Magento
3 1 (0.10%) Markit EDM
3 1 (0.10%) Sentinel
Cloud Services
1 471 (49.11%) AWS
2 300 (31.28%) Azure
3 193 (20.13%) GCP
4 133 (13.87%) Serverless
5 69 (7.19%) GitHub
6 45 (4.69%) SaaS
7 36 (3.75%) Cloud Computing
8 33 (3.44%) Boomi
9 28 (2.92%) Power Platform
10 27 (2.82%) Amazon EKS
11 26 (2.71%) AWS Lambda
12 23 (2.40%) AWS CloudFormation
13 18 (1.88%) Amazon ECS
13 18 (1.88%) Microsoft 365
13 18 (1.88%) PaaS
14 15 (1.56%) Amazon EC2
14 15 (1.56%) Dynamics 365
15 14 (1.46%) Amazon Kinesis
16 13 (1.36%) Heroku
17 12 (1.25%) IaaS
Communications & Networking
1 21 (2.19%) Firewall
2 17 (1.77%) HTTP
2 17 (1.77%) TCP/IP
3 13 (1.36%) Asterisk PBX
4 12 (1.25%) Skype
5 9 (0.94%) DNS
5 9 (0.94%) VPN
6 8 (0.83%) LAN
6 8 (0.83%) VoIP
7 7 (0.73%) BGP
7 7 (0.73%) Internet
7 7 (0.73%) NAS
7 7 (0.73%) RTP
7 7 (0.73%) SNMP
8 6 (0.63%) Diameter Protocol
8 6 (0.63%) PBX
9 5 (0.52%) DHCP
9 5 (0.52%) Network Security
9 5 (0.52%) SSH
9 5 (0.52%) Wireless
Database & Business Intelligence
1 139 (14.49%) NoSQL
2 112 (11.68%) Big Data
3 86 (8.97%) PostgreSQL
4 59 (6.15%) Hadoop
5 57 (5.94%) SQL Server
6 54 (5.63%) Relational Database
7 42 (4.38%) MySQL
8 36 (3.75%) Amazon Redshift
9 34 (3.55%) MongoDB
10 32 (3.34%) Data Warehouse
11 29 (3.02%) BigQuery
12 25 (2.61%) Tableau
13 23 (2.40%) Amazon DynamoDB
14 22 (2.29%) Apache Cassandra
15 18 (1.88%) Apache Hive
15 18 (1.88%) Redis
16 16 (1.67%) MariaDB
16 16 (1.67%) RDBMS
17 15 (1.56%) Data Lake
18 14 (1.46%) Power BI
Development Applications
1 150 (15.64%) Git (software)
2 124 (12.93%) Jenkins
3 65 (6.78%) JIRA
4 60 (6.26%) GitLab
5 39 (4.07%) JUnit
6 33 (3.44%) Selenium
7 32 (3.34%) Atlassian Bamboo
8 23 (2.40%) Mockito
9 20 (2.09%) Bitbucket
9 20 (2.09%) Cucumber
9 20 (2.09%) WebDriver
10 19 (1.98%) Maven
11 18 (1.88%) TeamCity
12 17 (1.77%) Octopus Deploy
13 12 (1.25%) Pylint
13 12 (1.25%) SonarQube
13 12 (1.25%) Sourcetree
14 11 (1.15%) DbUnit
14 11 (1.15%) jMock
14 11 (1.15%) TestRail
General
1 232 (24.19%) Finance
2 73 (7.61%) Public Sector
3 65 (6.78%) Banking
4 47 (4.90%) Marketing
5 36 (3.75%) Front Office
6 35 (3.65%) Retail
7 26 (2.71%) Investment Banking
8 22 (2.29%) Games
9 21 (2.19%) Manufacturing
10 15 (1.56%) Electronics
11 13 (1.36%) Telecoms
12 12 (1.25%) Advertising
13 11 (1.15%) Automotive
14 8 (0.83%) Legal
15 6 (0.63%) Law
16 3 (0.31%) Retail Banking
17 2 (0.21%) Billing
17 2 (0.21%) Financial Institution
17 2 (0.21%) Publishing
18 1 (0.10%) French Language
Job Titles
1 389 (40.56%) Developer
2 148 (15.43%) Software Engineer
3 132 (13.76%) Architect
4 118 (12.30%) React Developer
5 86 (8.97%) Developer/Software Engineer
6 80 (8.34%) Java Developer
7 64 (6.67%) Senior Developer
8 61 (6.36%) DevOps Engineer
9 52 (5.42%) Solutions Architect
10 46 (4.80%) Data Engineer
11 39 (4.07%) Consultant
12 37 (3.86%) Front End Developer (Client-Side Developer)
13 33 (3.44%) Java Engineer
14 31 (3.23%) Full Stack Developer
15 30 (3.13%) JavaScript Developer
15 30 (3.13%) Software Developer
16 29 (3.02%) Platform Engineer
16 29 (3.02%) Python Developer
17 27 (2.82%) Digital Architect
18 26 (2.71%) Java Software Engineer
Libraries, Frameworks & Software Standards
1 218 (22.73%) React
2 194 (20.23%) AngularJS
3 155 (16.16%) Web Services
4 138 (14.39%) .NET
5 113 (11.78%) REST
6 112 (11.68%) RESTful
7 104 (10.84%) Node.js
8 101 (10.53%) React Native
9 81 (8.45%) HTML
10 76 (7.92%) CSS
11 55 (5.74%) Spring
12 51 (5.32%) Kafka
13 43 (4.48%) HTML5
14 35 (3.65%) Redux
15 34 (3.55%) SOAP
15 34 (3.55%) Spring Boot
16 33 (3.44%) RabbitMQ
17 30 (3.13%) Elastic Stack
18 27 (2.82%) JSON
19 25 (2.61%) CSS3
Miscellaneous
1 146 (15.22%) Blog
2 55 (5.74%) Virtual Team
3 53 (5.53%) Analytical Skills
4 43 (4.48%) Greenfield Project
5 42 (4.38%) Cloud Native
6 40 (4.17%) Mobile App
7 38 (3.96%) User Experience
8 33 (3.44%) Algorithms
9 29 (3.02%) Fixed Income
10 28 (2.92%) Foreign Exchange (FX)
11 25 (2.61%) Hedge funds
12 22 (2.29%) Enterprise Software
13 20 (2.09%) Data Centre
13 20 (2.09%) Public Cloud
14 19 (1.98%) Self-Motivation
15 17 (1.77%) Derivative
16 16 (1.67%) Data Structures
16 16 (1.67%) Social Media
17 15 (1.56%) Equities
18 13 (1.36%) Private Cloud
Operating Systems
1 173 (18.04%) Linux
2 76 (7.92%) Windows
3 60 (6.26%) Android
4 53 (5.53%) CentOS
5 42 (4.38%) Red Hat Enterprise Linux
6 41 (4.28%) Unix
7 17 (1.77%) Apple iOS
7 17 (1.77%) Debian
8 15 (1.56%) Ubuntu
9 11 (1.15%) Fedora
10 8 (0.83%) VMS
11 7 (0.73%) Windows Server
12 5 (0.52%) Mac OS X
13 2 (0.21%) Mac OS
13 2 (0.21%) Windows 10
14 1 (0.10%) MVS
14 1 (0.10%) Robot Operating System
14 1 (0.10%) SUSE
Processes & Methodologies
1 570 (59.44%) Agile Software Development
2 290 (30.24%) Software Engineering
3 254 (26.49%) DevOps
4 198 (20.65%) Microservices
5 177 (18.46%) Continuous Integration
6 143 (14.91%) Test Automation
7 142 (14.81%) TDD
8 115 (11.99%) Analytics
9 114 (11.89%) Computer Science
10 113 (11.78%) Asset Management
11 111 (11.57%) BDD
12 98 (10.22%) Configuration Management
13 97 (10.11%) Scrum
14 93 (9.70%) Web Application Development
15 92 (9.59%) Fintech
16 91 (9.49%) Progressive Web App
17 88 (9.18%) OO
18 83 (8.65%) Continuous Delivery
19 82 (8.55%) Artificial Intelligence
20 77 (8.03%) Machine Learning
Programming Languages
1 408 (42.54%) Java
2 365 (38.06%) Python
3 291 (30.34%) JavaScript
4 150 (15.64%) SQL
5 98 (10.22%) C#
6 62 (6.47%) C
6 62 (6.47%) C++
7 57 (5.94%) Scala
8 54 (5.63%) Ruby
9 48 (5.01%) Go
10 47 (4.90%) TypeScript
11 44 (4.59%) Bash Shell
12 43 (4.48%) PHP
13 33 (3.44%) ES6
14 30 (3.13%) Perl
15 29 (3.02%) Kotlin
16 22 (2.29%) Shell Script
17 17 (1.77%) PowerShell
18 16 (1.67%) Java 8
19 15 (1.56%) R
Qualifications
1 128 (13.35%) Degree
2 106 (11.05%) Security Cleared
3 99 (10.32%) SC Cleared
4 63 (6.57%) Computer Science Degree
5 17 (1.77%) Master's Degree
6 15 (1.56%) DV Cleared
7 13 (1.36%) PhD
8 11 (1.15%) CISSP
9 9 (0.94%) AWS Certification
10 8 (0.83%) CISM
10 8 (0.83%) CSSLP
11 3 (0.31%) TOGAF Certification
12 2 (0.21%) CCNA
12 2 (0.21%) Cisco Certification
12 2 (0.21%) MCSA
12 2 (0.21%) MCSE
12 2 (0.21%) Microsoft Certification
12 2 (0.21%) Numerate Degree
12 2 (0.21%) RHCE
12 2 (0.21%) RHCSA
Quality Assurance & Compliance
1 57 (5.94%) QA
2 14 (1.46%) GDPR
3 10 (1.04%) NIST
4 7 (0.73%) Data Quality
5 6 (0.63%) NCSC
6 5 (0.52%) Government Security Classifications
7 4 (0.42%) SLA
8 3 (0.31%) ISO/IEC 27001
9 1 (0.10%) Cyber Essentials
9 1 (0.10%) Cyber Essentials PLUS
9 1 (0.10%) ISO 9001
9 1 (0.10%) MiFID
9 1 (0.10%) PCI DSS
System Software
1 189 (19.71%) Docker
2 14 (1.46%) Postfix
3 13 (1.36%) Kamailio
4 8 (0.83%) HDFS
4 8 (0.83%) KVM
5 7 (0.73%) OpenSIPS
6 6 (0.63%) iptables
6 6 (0.63%) QEMU
7 5 (0.52%) VMware Infrastructure
8 4 (0.42%) NFS
9 3 (0.31%) Active Directory
9 3 (0.31%) LXC
10 2 (0.21%) Apache ZooKeeper
10 2 (0.21%) Ceph
11 1 (0.10%) Apache Flume
11 1 (0.10%) Firmware
11 1 (0.10%) Lustre
11 1 (0.10%) Samba
11 1 (0.10%) Virtual Servers
11 1 (0.10%) VirtualBox
Systems Management
1 167 (17.41%) Kubernetes
2 110 (11.47%) Terraform
3 91 (9.49%) Puppet
4 82 (8.55%) Ansible
5 56 (5.84%) Opscode Chef
6 45 (4.69%) Prometheus
7 36 (3.75%) Grafana
8 23 (2.40%) Nagios
9 16 (1.67%) Graphite
10 15 (1.56%) HAProxy
11 14 (1.46%) Consul
11 14 (1.46%) Packer
12 12 (1.25%) Docker Swarm
12 12 (1.25%) Istio
12 12 (1.25%) ZABBIX
13 9 (0.94%) Rancher
14 8 (0.83%) Icinga
15 6 (0.63%) Galera Cluster
16 5 (0.52%) Mesos
17 4 (0.42%) Marathon
Vendors
1 108 (11.26%) Google
2 104 (10.84%) Microsoft
3 38 (3.96%) MuleSoft
4 37 (3.86%) Adobe
5 34 (3.55%) Dell
6 33 (3.44%) Oracle
7 28 (2.92%) IBM
8 24 (2.50%) TIBCO
9 22 (2.29%) WSO2
10 21 (2.19%) Splunk
11 20 (2.09%) UiPath
12 19 (1.98%) Red Hat
13 16 (1.67%) ION Trading
14 14 (1.46%) Sitecore
15 13 (1.36%) Dynatrace
15 13 (1.36%) Facebook
16 12 (1.25%) SAP
17 9 (0.94%) Cisco
18 8 (0.83%) HP
18 8 (0.83%) Informatica