Period
to 21 October 2021

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Linux skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Linux over the 6 months to 21 October 2021 with a comparison to the same period in the previous 2 years.

Linux
England > London
6 months to
21 Oct 2021
Same period 2020 Same period 2019
Rank 40 24 21
Rank change year-on-year -16 -3 0
Permanent jobs citing Linux 3,657 1,853 5,096
As % of all permanent jobs advertised in London 7.21% 9.38% 9.33%
As % of the Operating Systems category 46.24% 48.32% 43.09%
Number of salaries quoted 2,473 1,554 4,098
10th Percentile £45,000 £41,750 £38,750
25th Percentile £55,000 £52,500 £52,000
Median annual salary (50th Percentile) £72,500 £70,000 £67,500
Median % change year-on-year +3.57% +3.70% +3.85%
75th Percentile £90,000 £82,500 £85,000
90th Percentile £106,250 £97,500 £107,500
England median annual salary £59,000 £55,000 £55,000
% change year-on-year +7.27% - -

Linux is in the Operating Systems 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 operating system skills.

All Operating Systems
London
Permanent vacancies with a requirement for operating system skills 7,909 3,835 11,826
As % of all permanent IT jobs advertised in London 15.59% 19.41% 21.64%
Number of salaries quoted 5,447 3,246 9,794
10th Percentile £32,500 £35,846 £28,750
25th Percentile £46,250 £46,250 £38,750
Median annual salary (50th Percentile) £65,000 £64,934 £58,875
Median % change year-on-year +0.10% +10.29% +2.39%
75th Percentile £82,500 £77,875 £77,500
90th Percentile £98,750 £95,000 £92,500
England median annual salary £50,000 £50,000 £46,000
% change year-on-year - +8.70% -3.16%

Linux
Job Vacancy Trend in London

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

Job vacancy trend for Linux in London

Linux
Salary Trend in London

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

Salary trend for Linux in London

Linux
Salary Histogram in London

Salary distribution for jobs citing Linux in London over the 6 months to 21 October 2021.

Salary histogram for Linux in London

Linux
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Linux within the London region over the 6 months to 21 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 -18 420 £75,000 +7.14% 268
West London -5 169 £64,000 +16.36% 87
South London -5 101 £60,000 -14.29% 23
East London +4 69 £65,000 -8.77% 60
North London -17 1 £75,000 +71.43% 10
Linux
England

For the 6 months to 21 October 2021, IT jobs citing Linux 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 Linux.

1 1,589 (43.45%) Python
2 1,523 (41.65%) AWS
3 1,251 (34.21%) DevOps
4 1,156 (31.61%) Docker
5 1,153 (31.53%) Agile Software Development
6 1,030 (28.17%) Windows
7 1,019 (27.86%) Finance
8 1,009 (27.59%) Kubernetes
9 915 (25.02%) Java
10 913 (24.97%) Azure
11 895 (24.47%) SQL
12 853 (23.33%) Terraform
13 789 (21.58%) Social Skills
14 738 (20.18%) Ansible
15 729 (19.93%) Unix
16 693 (18.95%) Git (software)
17 672 (18.38%) Software Engineering
18 664 (18.16%) Jenkins
19 622 (17.01%) JavaScript
20 599 (16.38%) Bash Shell
21 525 (14.36%) Problem-Solving
22 512 (14.00%) Infrastructure as Code
23 501 (13.70%) GCP
24 499 (13.65%) Microservices
25 484 (13.23%) Degree
26 467 (12.77%) Puppet
27 464 (12.69%) C++
28 431 (11.79%) Microsoft
29 400 (10.94%) Test Automation
30 398 (10.88%) Computer Science

Linux
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
1 185 (5.06%) Apache
2 184 (5.03%) Elasticsearch
3 111 (3.04%) Confluence
4 108 (2.95%) nginx
5 93 (2.54%) IIS
6 88 (2.41%) Tomcat
7 86 (2.35%) Apache Spark
8 69 (1.89%) SharePoint
9 45 (1.23%) OpenStack
10 44 (1.20%) Apache Airflow
11 37 (1.01%) MS Exchange
12 27 (0.74%) WebSphere
13 26 (0.71%) Tornado
13 26 (0.71%) WebLogic
14 22 (0.60%) Oracle SOA Suite
15 20 (0.55%) Gunicorn
16 14 (0.38%) Oracle Coherence
17 13 (0.36%) WordPress
18 10 (0.27%) CMS
19 9 (0.25%) Moodle
Applications
1 47 (1.29%) Microsoft Office
2 23 (0.63%) MS Visio
3 21 (0.57%) Microsoft Excel
4 17 (0.46%) Adobe Illustrator
4 17 (0.46%) Photoshop
5 15 (0.41%) GIMP
6 7 (0.19%) Microsoft PowerPoint
7 5 (0.14%) Spreadsheet
8 1 (0.027%) 1Password
8 1 (0.027%) Chatbot
8 1 (0.027%) ImageReady
8 1 (0.027%) Microsoft Project
8 1 (0.027%) Weka
Business Applications
1 28 (0.77%) Oracle Applications
2 18 (0.49%) Distributed Ledger
3 14 (0.38%) Sentinel
4 10 (0.27%) Magento
5 6 (0.16%) Dynamics CRM
6 4 (0.11%) WebTrends
7 3 (0.082%) Oracle Procure-to-Pay
8 2 (0.055%) IntelliMatch
8 2 (0.055%) Refinitiv Enterprise Platform
8 2 (0.055%) Temenos T24
8 2 (0.055%) Workfront
9 1 (0.027%) BASE24
9 1 (0.027%) FINCAD Analytics
9 1 (0.027%) Oracle EBS
9 1 (0.027%) Oracle EBS R12
9 1 (0.027%) R3 Corda
9 1 (0.027%) Salerio
9 1 (0.027%) StreamServe
9 1 (0.027%) SunGard Martini
9 1 (0.027%) Yoast SEO
Cloud Services
1 1,523 (41.65%) AWS
2 913 (24.97%) Azure
3 501 (13.70%) GCP
4 261 (7.14%) AWS CloudFormation
4 261 (7.14%) Serverless
5 235 (6.43%) GitHub
6 232 (6.34%) SaaS
7 198 (5.41%) Amazon EC2
8 176 (4.81%) Microsoft 365
9 168 (4.59%) AWS Lambda
10 140 (3.83%) Amazon S3
11 118 (3.23%) PaaS
12 107 (2.93%) Amazon CloudWatch
13 106 (2.90%) IaaS
13 106 (2.90%) OpenShift
14 99 (2.71%) Amazon ECS
15 89 (2.43%) Amazon EKS
16 74 (2.02%) Cloud Computing
17 71 (1.94%) Virtual Private Cloud
18 61 (1.67%) Azure Active Directory
Communications & Networking
1 315 (8.61%) Firewall
2 257 (7.03%) TCP/IP
3 231 (6.32%) HTTP
4 201 (5.50%) DNS
5 139 (3.80%) VPN
6 130 (3.55%) Broadband
7 92 (2.52%) Network Security
8 81 (2.21%) DHCP
9 80 (2.19%) LAN
10 78 (2.13%) WAN
11 73 (2.00%) SSL
12 59 (1.61%) Internet
13 44 (1.20%) Bluetooth
14 39 (1.07%) SNMP
15 37 (1.01%) DVB
16 31 (0.85%) Wireless
17 30 (0.82%) SAN
18 29 (0.79%) VLAN
19 28 (0.77%) F5 BIG-IP GTM
19 28 (0.77%) VoIP
Database & Business Intelligence
1 292 (7.98%) MySQL
2 288 (7.88%) PostgreSQL
3 265 (7.25%) NoSQL
4 246 (6.73%) Relational Database
5 241 (6.59%) SQL Server
6 214 (5.85%) MongoDB
7 135 (3.69%) Redis
8 127 (3.47%) Oracle Database
9 118 (3.23%) Amazon RDS
10 116 (3.17%) Big Data
11 85 (2.32%) Apache Cassandra
12 81 (2.21%) Data Warehouse
13 67 (1.83%) Amazon DynamoDB
14 55 (1.50%) RDBMS
15 51 (1.39%) Hadoop
16 43 (1.18%) SQL Server Reporting Services
17 38 (1.04%) Amazon Athena
18 36 (0.98%) KDB
19 35 (0.96%) Power BI
20 34 (0.93%) MariaDB
Development Applications
1 693 (18.95%) Git (software)
2 664 (18.16%) Jenkins
3 343 (9.38%) JIRA
4 180 (4.92%) GitLab
5 162 (4.43%) Maven
6 128 (3.50%) TeamCity
7 84 (2.30%) Bitbucket
8 67 (1.83%) Octopus Deploy
9 63 (1.72%) JUnit
9 63 (1.72%) Selenium
10 61 (1.67%) Atlassian Bamboo
11 57 (1.56%) JMeter
12 50 (1.37%) Gradle
13 47 (1.29%) Travis CI
14 46 (1.26%) IntelliJ
15 42 (1.15%) Sonatype Nexus
16 39 (1.07%) CircleCI
17 38 (1.04%) webpack
18 37 (1.01%) Subversion
19 36 (0.98%) Postman
General
1 1,019 (27.86%) Finance
2 789 (21.58%) Social Skills
3 371 (10.14%) Banking
4 203 (5.55%) Analytical Skills
5 172 (4.70%) Games
6 122 (3.34%) Front Office
7 121 (3.31%) Inclusion and Diversity
8 105 (2.87%) Retail
9 95 (2.60%) Marketing
10 94 (2.57%) Investment Banking
11 92 (2.52%) Back Office
12 73 (2.00%) Telecoms
13 62 (1.70%) Presentation Skills
14 59 (1.61%) Advertising
14 59 (1.61%) Financial Institution
15 55 (1.50%) Legal
16 53 (1.45%) Public Sector
17 49 (1.34%) Documentation Skills
18 42 (1.15%) Organisational Skills
19 41 (1.12%) Law
Job Titles
1 807 (22.07%) Developer
2 563 (15.40%) DevOps Engineer
3 274 (7.49%) Software Engineer
4 234 (6.40%) Senior Developer
5 191 (5.22%) Analyst
6 186 (5.09%) Linux Engineer
7 176 (4.81%) AWS Engineer
8 168 (4.59%) Senior DevOps
9 165 (4.51%) Senior DevOps Engineer
10 164 (4.48%) Java Developer
11 142 (3.88%) Cloud Engineer
12 136 (3.72%) Infrastructure Engineer
13 129 (3.53%) Python Developer
14 128 (3.50%) Java Engineer
15 122 (3.34%) C++ Developer
15 122 (3.34%) Platform Engineer
16 121 (3.31%) Applications Support
17 119 (3.25%) Software Developer
18 118 (3.23%) AWS DevOps
19 117 (3.20%) AWS DevOps Engineer
Libraries, Frameworks & Software Standards
1 375 (10.25%) REST
2 351 (9.60%) HTML
3 350 (9.57%) React
4 310 (8.48%) Spring
5 274 (7.49%) Node.js
6 264 (7.22%) CSS
7 252 (6.89%) Kafka
8 243 (6.64%) .NET
9 236 (6.45%) AngularJS
10 198 (5.41%) Elastic Stack
10 198 (5.41%) Web Services
11 156 (4.27%) RabbitMQ
12 155 (4.24%) Middleware
12 155 (4.24%) RESTful
13 138 (3.77%) HTML5
14 136 (3.72%) JSON
15 122 (3.34%) Django
16 114 (3.12%) FIX Protocol
17 112 (3.06%) XML
18 102 (2.79%) Vue.js
Miscellaneous
1 217 (5.93%) Data Centre
2 205 (5.61%) Algorithms
3 171 (4.68%) Linux Command Line
4 157 (4.29%) User Experience
5 153 (4.18%) Data Structures
6 139 (3.80%) Public Cloud
7 108 (2.95%) Self-Motivation
8 104 (2.84%) Equities
9 102 (2.79%) Social Media
10 98 (2.68%) Derivative
10 98 (2.68%) Management Information System
11 95 (2.60%) Greenfield Project
12 92 (2.52%) Virtual Team
13 87 (2.38%) Cloud Native
14 79 (2.16%) Foreign Exchange (FX)
15 78 (2.13%) Clustering
16 67 (1.83%) STB
17 65 (1.78%) Enterprise Software
18 64 (1.75%) Fixed Income
18 64 (1.75%) Hedge funds
Operating Systems
1 1,030 (28.17%) Windows
2 729 (19.93%) Unix
3 208 (5.69%) Windows Server
4 204 (5.58%) Red Hat Enterprise Linux
5 145 (3.96%) CentOS
6 129 (3.53%) Android
7 117 (3.20%) Apple iOS
8 113 (3.09%) Ubuntu
9 65 (1.78%) Mac OS
10 60 (1.64%) Mac OS X
11 53 (1.45%) Windows 10
12 48 (1.31%) Debian
13 42 (1.15%) Embedded Linux
14 40 (1.09%) Windows Server 2016
15 29 (0.79%) Mesosphere
16 26 (0.71%) SUSE
17 25 (0.68%) Solaris
18 23 (0.63%) Windows Server 2012
19 21 (0.57%) Windows Server 2008
20 19 (0.52%) Windows Server 2019
Processes & Methodologies
1 1,251 (34.21%) DevOps
2 1,153 (31.53%) Agile Software Development
3 672 (18.38%) Software Engineering
4 525 (14.36%) Problem-Solving
5 512 (14.00%) Infrastructure as Code
6 499 (13.65%) Microservices
7 400 (10.94%) Test Automation
8 398 (10.88%) Computer Science
9 395 (10.80%) Configuration Management
10 381 (10.42%) TDD
11 363 (9.93%) Analytics
12 315 (8.61%) Fintech
13 291 (7.96%) Open Source
14 287 (7.85%) Mentoring
15 285 (7.79%) Continuous Integration
16 267 (7.30%) Full Stack Development
17 252 (6.89%) Scrum
18 249 (6.81%) Unit Testing
19 243 (6.64%) OO
20 221 (6.04%) Site Reliability Engineering
Programming Languages
1 1,589 (43.45%) Python
2 915 (25.02%) Java
3 895 (24.47%) SQL
4 622 (17.01%) JavaScript
5 599 (16.38%) Bash Shell
6 464 (12.69%) C++
7 344 (9.41%) PowerShell
8 308 (8.42%) Go
9 303 (8.29%) C#
10 251 (6.86%) Shell Script
11 241 (6.59%) C
12 229 (6.26%) TypeScript
13 192 (5.25%) Perl
14 166 (4.54%) Ruby
15 155 (4.24%) PHP
16 123 (3.36%) Scala
17 99 (2.71%) Rust
18 92 (2.52%) Kotlin
19 73 (2.00%) Java 8
20 56 (1.53%) Groovy
Qualifications
1 484 (13.23%) Degree
2 206 (5.63%) Computer Science Degree
3 116 (3.17%) Security Cleared
4 92 (2.52%) SC Cleared
5 89 (2.43%) Cisco Certification
6 57 (1.56%) CCNA
7 49 (1.34%) Microsoft Certification
8 47 (1.29%) Master's Degree
9 36 (0.98%) AWS Certification
10 32 (0.88%) CCNP
11 31 (0.85%) MCSA
12 27 (0.74%) CISSP
13 24 (0.66%) MCSE
14 23 (0.63%) RHCSA
15 21 (0.57%) SANS
16 20 (0.55%) CEH
16 20 (0.55%) CISA
17 19 (0.52%) CompTIA Security+
18 18 (0.49%) OSCP
19 17 (0.46%) CISM
Quality Assurance & Compliance
1 188 (5.14%) QA
2 64 (1.75%) PSD2
3 57 (1.56%) ISO/IEC 27001
4 45 (1.23%) SLA
5 43 (1.18%) PCI DSS
6 23 (0.63%) NIST
7 21 (0.57%) Accessibility
8 20 (0.55%) COBIT
8 20 (0.55%) GRC
8 20 (0.55%) PMO
9 14 (0.38%) GDPR
10 8 (0.22%) IEC 62304
11 7 (0.19%) ISO 13485
11 7 (0.19%) NIST 800
11 7 (0.19%) Sarbanes-Oxley
12 5 (0.14%) Data Quality
12 5 (0.14%) MiFID
13 4 (0.11%) GLBA
13 4 (0.11%) ISO 20022
14 3 (0.082%) ISO 15022
System Software
1 1,156 (31.61%) Docker
2 222 (6.07%) Active Directory
3 200 (5.47%) VMware Infrastructure
4 67 (1.83%) vSphere
5 66 (1.80%) Hyper-V
6 51 (1.39%) Apache ZooKeeper
7 46 (1.26%) Virtual Machines
8 40 (1.09%) Firmware
9 39 (1.07%) VMware ESXi
10 25 (0.68%) Virtual Servers
11 22 (0.60%) XenApp
12 20 (0.55%) KVM
12 20 (0.55%) LXC
13 18 (0.49%) iptables
14 15 (0.41%) XenDesktop
15 9 (0.25%) Oracle RAC
15 9 (0.25%) vCloud
16 8 (0.22%) NFS
16 8 (0.22%) Virtual Desktop
17 7 (0.19%) Xen
Systems Management
1 1,009 (27.59%) Kubernetes
2 853 (23.33%) Terraform
3 738 (20.18%) Ansible
4 467 (12.77%) Puppet
5 265 (7.25%) Opscode Chef
6 229 (6.26%) Prometheus
7 178 (4.87%) Grafana
8 101 (2.76%) Nagios
9 65 (1.78%) Kibana
10 61 (1.67%) Consul
11 48 (1.31%) SCCM
12 45 (1.23%) logstash
13 37 (1.01%) Salt
14 34 (0.93%) ZABBIX
15 32 (0.88%) Packer
16 30 (0.82%) Icinga
17 29 (0.79%) Hadoop YARN
18 26 (0.71%) Failover Clustering
18 26 (0.71%) Istio
19 25 (0.68%) Automic
Vendors
1 431 (11.79%) Microsoft
2 374 (10.23%) Oracle
3 311 (8.50%) VMware
4 286 (7.82%) Red Hat
5 207 (5.66%) Google
6 169 (4.62%) Cisco
7 137 (3.75%) Splunk
8 88 (2.41%) ServiceNow
9 68 (1.86%) Citrix
10 67 (1.83%) Apple
11 65 (1.78%) IBM
12 51 (1.39%) HP
13 45 (1.23%) Bloomberg
14 44 (1.20%) Dell
14 44 (1.20%) LexisNexis
15 42 (1.15%) CheckPoint
16 41 (1.12%) Atlassian
16 41 (1.12%) F5
16 41 (1.12%) New Relic
17 39 (1.07%) YouTube