Period
to 1 August 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 1 August 2021 with a comparison to the same period in the previous 2 years.

Linux
England > London
6 months to
1 Aug 2021
Same period 2020 Same period 2019
Rank 34 26 19
Rank change year-on-year -8 -7 -1
Permanent jobs citing Linux 3,589 2,570 5,548
As % of all permanent jobs advertised in London 7.95% 9.12% 9.76%
As % of the Operating Systems category 48.67% 47.05% 45.22%
Number of salaries quoted 2,427 2,111 4,599
10th Percentile £46,250 £40,000 £37,700
25th Percentile £57,500 £52,500 £50,000
Median annual salary (50th Percentile) £75,000 £67,500 £65,000
Median % change year-on-year +11.11% +3.85% -
75th Percentile £90,000 £84,375 £85,000
90th Percentile £102,500 £98,750 £105,000
England median annual salary £57,500 £55,000 £55,000
% change year-on-year +4.55% - +4.76%

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 7,374 5,462 12,268
As % of all permanent IT jobs advertised in London 16.34% 19.39% 21.57%
Number of salaries quoted 5,158 4,532 10,272
10th Percentile £35,000 £32,500 £30,000
25th Percentile £47,500 £45,000 £41,202
Median annual salary (50th Percentile) £65,000 £62,500 £60,000
Median % change year-on-year +4.00% +4.17% +4.35%
75th Percentile £85,000 £77,500 £77,500
90th Percentile £97,500 £93,750 £92,500
England median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% -

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 1 August 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 1 August 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 -11 520 £75,000 +7.14% 250
West London -22 128 £60,000 +9.09% 95
South London -13 80 £62,500 -3.85% 26
East London +14 35 £65,000 -7.14% 34
North London +18 2 £75,000 +100.00% 6
Linux
England

For the 6 months to 1 August 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 1,539 (42.88%) Python
2 1,406 (39.18%) AWS
3 1,226 (34.16%) DevOps
4 1,171 (32.63%) Docker
5 1,085 (30.23%) Agile Software Development
6 1,062 (29.59%) Windows
7 1,033 (28.78%) Kubernetes
8 1,010 (28.14%) Finance
9 910 (25.36%) Java
10 897 (24.99%) SQL
11 844 (23.52%) Azure
12 816 (22.74%) Terraform
13 721 (20.09%) Social Skills
14 705 (19.64%) Ansible
15 697 (19.42%) Unix
16 643 (17.92%) Git (software)
17 631 (17.58%) Jenkins
18 611 (17.02%) Software Engineering
19 566 (15.77%) JavaScript
20 556 (15.49%) Bash Shell
21 502 (13.99%) Microservices
22 486 (13.54%) Infrastructure as Code
23 459 (12.79%) Puppet
24 445 (12.40%) C++
25 443 (12.34%) Problem-Solving
26 436 (12.15%) Degree
27 420 (11.70%) GCP
28 407 (11.34%) Microsoft
29 394 (10.98%) Test Automation
30 382 (10.64%) Banking

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
1 192 (5.35%) Elasticsearch
2 170 (4.74%) Apache
3 126 (3.51%) Confluence
4 120 (3.34%) nginx
5 99 (2.76%) IIS
6 86 (2.40%) Tomcat
7 76 (2.12%) Apache Airflow
8 75 (2.09%) Apache Spark
9 50 (1.39%) SharePoint
10 44 (1.23%) OpenStack
11 37 (1.03%) Oracle SOA Suite
12 33 (0.92%) Tornado
13 28 (0.78%) MS Exchange
14 27 (0.75%) WebLogic
15 20 (0.56%) WebSphere
16 17 (0.47%) Gunicorn
17 15 (0.42%) Oracle Coherence
18 13 (0.36%) CMS
19 12 (0.33%) Exchange Server 2010
19 12 (0.33%) JBoss
Applications
1 46 (1.28%) Microsoft Office
2 22 (0.61%) Microsoft Excel
3 19 (0.53%) Adobe Illustrator
3 19 (0.53%) Photoshop
4 17 (0.47%) GIMP
5 10 (0.28%) MS Visio
5 10 (0.28%) Spreadsheet
6 8 (0.22%) Microsoft PowerPoint
7 5 (0.14%) Stata
8 2 (0.056%) Gephi
9 1 (0.028%) ImageReady
9 1 (0.028%) Microsoft Project
Business Applications
1 19 (0.53%) Oracle Applications
2 18 (0.50%) Distributed Ledger
3 7 (0.20%) R3 Corda
4 6 (0.17%) Magento
5 4 (0.11%) Dynamics NAV
6 3 (0.084%) IntelliMatch
6 3 (0.084%) Oracle EBS
6 3 (0.084%) Oracle Procure-to-Pay
6 3 (0.084%) Sentinel
6 3 (0.084%) Temenos T24
7 2 (0.056%) Oracle EBS R12
7 2 (0.056%) Payment Gateway
7 2 (0.056%) Workfront
8 1 (0.028%) Dynamics CRM
8 1 (0.028%) FINCAD Analytics
8 1 (0.028%) ION MarketView
8 1 (0.028%) Refinitiv Enterprise Platform
8 1 (0.028%) Salerio
8 1 (0.028%) SunGard Martini
8 1 (0.028%) Yoast SEO
Cloud Services
1 1,406 (39.18%) AWS
2 844 (23.52%) Azure
3 420 (11.70%) GCP
4 255 (7.11%) SaaS
5 210 (5.85%) GitHub
6 209 (5.82%) AWS CloudFormation
7 205 (5.71%) Serverless
8 177 (4.93%) Amazon EC2
9 167 (4.65%) Microsoft 365
10 145 (4.04%) AWS Lambda
11 134 (3.73%) IaaS
12 120 (3.34%) PaaS
13 115 (3.20%) Amazon S3
14 113 (3.15%) Amazon ECS
15 105 (2.93%) Amazon EKS
16 89 (2.48%) OpenShift
17 66 (1.84%) Amazon CloudWatch
18 61 (1.70%) Azure Active Directory
19 52 (1.45%) Cloud Computing
20 45 (1.25%) Datadog
Communications & Networking
1 334 (9.31%) Firewall
2 232 (6.46%) TCP/IP
3 199 (5.54%) DNS
4 195 (5.43%) HTTP
5 133 (3.71%) VPN
6 98 (2.73%) DHCP
7 85 (2.37%) LAN
8 84 (2.34%) Network Security
9 82 (2.28%) Broadband
9 82 (2.28%) Internet
10 76 (2.12%) WAN
11 63 (1.76%) SSL
12 52 (1.45%) SNMP
13 42 (1.17%) SSH
14 40 (1.11%) BGP
14 40 (1.11%) VLAN
15 38 (1.06%) SAN
16 37 (1.03%) VoIP
17 30 (0.84%) IPsec
18 27 (0.75%) Cisco ASA
Database & Business Intelligence
1 300 (8.36%) MySQL
2 271 (7.55%) Relational Database
3 268 (7.47%) PostgreSQL
4 247 (6.88%) MongoDB
5 246 (6.85%) NoSQL
6 244 (6.80%) SQL Server
7 147 (4.10%) Redis
8 128 (3.57%) Big Data
9 110 (3.06%) Amazon RDS
9 110 (3.06%) Oracle Database
10 102 (2.84%) Data Warehouse
11 89 (2.48%) Apache Cassandra
12 69 (1.92%) Hadoop
13 64 (1.78%) RDBMS
14 63 (1.76%) SQL Server Reporting Services
15 59 (1.64%) SQL Server Integration Services
16 56 (1.56%) Amazon DynamoDB
17 53 (1.48%) Blockchain
18 43 (1.20%) KDB
19 40 (1.11%) MariaDB
Development Applications
1 643 (17.92%) Git (software)
2 631 (17.58%) Jenkins
3 332 (9.25%) JIRA
4 186 (5.18%) GitLab
5 175 (4.88%) Maven
6 143 (3.98%) TeamCity
7 87 (2.42%) Bitbucket
8 86 (2.40%) Atlassian Bamboo
9 78 (2.17%) JUnit
10 65 (1.81%) Octopus Deploy
11 64 (1.78%) Selenium
12 54 (1.50%) Sonatype Nexus
12 54 (1.50%) Travis CI
13 52 (1.45%) JMeter
14 46 (1.28%) Gradle
15 44 (1.23%) Mockito
16 40 (1.11%) IntelliJ
17 39 (1.09%) Cucumber
18 34 (0.95%) webpack
19 31 (0.86%) SonarQube
General
1 1,010 (28.14%) Finance
2 721 (20.09%) Social Skills
3 382 (10.64%) Banking
4 216 (6.02%) Analytical Skills
5 204 (5.68%) Games
6 129 (3.59%) Back Office
7 124 (3.46%) Front Office
8 106 (2.95%) Telecoms
9 102 (2.84%) Inclusion and Diversity
10 101 (2.81%) Retail
11 95 (2.65%) Marketing
12 88 (2.45%) Investment Banking
13 85 (2.37%) Legal
14 68 (1.89%) Advertising
14 68 (1.89%) Electronics
15 66 (1.84%) Manufacturing
16 60 (1.67%) Public Sector
17 56 (1.56%) Presentation Skills
18 54 (1.50%) Organisational Skills
19 53 (1.48%) Financial Institution
Job Titles
1 799 (22.26%) Developer
2 625 (17.41%) DevOps Engineer
3 250 (6.97%) Software Engineer
4 212 (5.91%) Java Developer
5 209 (5.82%) Senior Developer
6 200 (5.57%) Linux Engineer
7 185 (5.15%) Senior DevOps
8 178 (4.96%) Senior DevOps Engineer
9 167 (4.65%) AWS Engineer
10 164 (4.57%) Analyst
11 150 (4.18%) Infrastructure Engineer
12 122 (3.40%) Software Developer
13 121 (3.37%) Applications Support
13 121 (3.37%) Site Reliability Engineer
14 117 (3.26%) AWS DevOps
15 112 (3.12%) Cloud Engineer
16 111 (3.09%) AWS DevOps Engineer
17 104 (2.90%) Platform Engineer
18 102 (2.84%) Java Engineer
19 101 (2.81%) Systems Engineer
Libraries, Frameworks & Software Standards
1 333 (9.28%) REST
2 320 (8.92%) React
3 309 (8.61%) Spring
4 305 (8.50%) HTML
5 253 (7.05%) Node.js
6 252 (7.02%) .NET
7 239 (6.66%) CSS
8 234 (6.52%) Web Services
9 216 (6.02%) AngularJS
10 215 (5.99%) Kafka
11 212 (5.91%) RESTful
12 195 (5.43%) Elastic Stack
13 156 (4.35%) RabbitMQ
14 127 (3.54%) HTML5
15 110 (3.06%) Middleware
16 109 (3.04%) .NET Core
16 109 (3.04%) FIX Protocol
17 105 (2.93%) Django
18 98 (2.73%) Hibernate
18 98 (2.73%) XML
Miscellaneous
1 213 (5.93%) Algorithms
2 212 (5.91%) Data Centre
3 177 (4.93%) Linux Command Line
4 154 (4.29%) Data Structures
5 123 (3.43%) User Experience
6 113 (3.15%) Public Cloud
7 108 (3.01%) Self-Motivation
8 99 (2.76%) Derivative
9 90 (2.51%) Cloud Native
9 90 (2.51%) Fixed Income
10 89 (2.48%) Virtual Team
11 83 (2.31%) Greenfield Project
12 80 (2.23%) Management Information System
13 78 (2.17%) Clustering
14 73 (2.03%) Hedge funds
15 70 (1.95%) Equities
16 69 (1.92%) PKI
17 65 (1.81%) Foreign Exchange (FX)
17 65 (1.81%) Social Media
18 62 (1.73%) Enterprise Software
Operating Systems
1 1,062 (29.59%) Windows
2 697 (19.42%) Unix
3 228 (6.35%) Windows Server
4 215 (5.99%) Red Hat Enterprise Linux
5 183 (5.10%) CentOS
6 137 (3.82%) Ubuntu
7 114 (3.18%) Android
8 97 (2.70%) Apple iOS
9 58 (1.62%) Debian
9 58 (1.62%) Windows 10
10 52 (1.45%) Embedded Linux
11 50 (1.39%) Mac OS X
12 48 (1.34%) Mac OS
13 39 (1.09%) Solaris
14 33 (0.92%) Windows Server 2016
15 30 (0.84%) Windows Server 2019
16 24 (0.67%) Oracle Linux
17 22 (0.61%) Windows Server 2008
18 21 (0.59%) SUSE
18 21 (0.59%) Windows Server 2012
Processes & Methodologies
1 1,226 (34.16%) DevOps
2 1,085 (30.23%) Agile Software Development
3 611 (17.02%) Software Engineering
4 502 (13.99%) Microservices
5 486 (13.54%) Infrastructure as Code
6 443 (12.34%) Problem-Solving
7 394 (10.98%) Test Automation
8 366 (10.20%) TDD
9 346 (9.64%) Computer Science
10 336 (9.36%) Configuration Management
11 332 (9.25%) Fintech
12 327 (9.11%) Open Source
13 291 (8.11%) Analytics
14 282 (7.86%) Continuous Integration
15 252 (7.02%) Full Stack Development
16 250 (6.97%) Mentoring
17 239 (6.66%) Site Reliability Engineering
18 233 (6.49%) Scrum
19 220 (6.13%) Infrastructure Engineering
20 201 (5.60%) Artificial Intelligence
Programming Languages
1 1,539 (42.88%) Python
2 910 (25.36%) Java
3 897 (24.99%) SQL
4 566 (15.77%) JavaScript
5 556 (15.49%) Bash Shell
6 445 (12.40%) C++
7 320 (8.92%) PowerShell
8 298 (8.30%) C#
9 286 (7.97%) Go
10 248 (6.91%) Shell Script
11 231 (6.44%) C
12 205 (5.71%) Perl
13 190 (5.29%) TypeScript
14 161 (4.49%) PHP
15 149 (4.15%) Ruby
16 116 (3.23%) Scala
17 93 (2.59%) Rust
18 91 (2.54%) Java 8
19 72 (2.01%) Kotlin
20 66 (1.84%) R
Qualifications
1 436 (12.15%) Degree
2 206 (5.74%) Computer Science Degree
3 145 (4.04%) Security Cleared
4 104 (2.90%) SC Cleared
5 90 (2.51%) Cisco Certification
6 62 (1.73%) CCNA
7 48 (1.34%) Microsoft Certification
8 35 (0.98%) DV Cleared
9 34 (0.95%) CEH
10 32 (0.89%) CompTIA Security+
11 30 (0.84%) CISSP
12 29 (0.81%) Master's Degree
13 28 (0.78%) CCNP
14 23 (0.64%) AWS Certification
15 22 (0.61%) OSCP
16 21 (0.59%) RHCSA
17 20 (0.56%) ITIL Certification
17 20 (0.56%) Network+ Certification
18 19 (0.53%) MCSA
19 17 (0.47%) Linux+ Certification
Quality Assurance & Compliance
1 204 (5.68%) QA
2 60 (1.67%) ISO/IEC 27001
2 60 (1.67%) PSD2
3 46 (1.28%) PCI DSS
4 37 (1.03%) SLA
5 20 (0.56%) GRC
5 20 (0.56%) PMO
6 16 (0.45%) NIST
7 15 (0.42%) COBIT
8 14 (0.39%) Accessibility
9 12 (0.33%) GDPR
10 9 (0.25%) Sarbanes-Oxley
11 8 (0.22%) IEC 62304
11 8 (0.22%) ISO 13485
12 6 (0.17%) Cyber Essentials
12 6 (0.17%) GLBA
13 4 (0.11%) ISO 9001
14 3 (0.084%) FedRAMP
14 3 (0.084%) ISO 15022
14 3 (0.084%) ISO 20022
System Software
1 1,171 (32.63%) Docker
2 247 (6.88%) Active Directory
3 183 (5.10%) VMware Infrastructure
4 61 (1.70%) Hyper-V
5 48 (1.34%) Apache ZooKeeper
6 47 (1.31%) vSphere
7 42 (1.17%) Firmware
8 37 (1.03%) Virtual Machines
9 35 (0.98%) iptables
10 29 (0.81%) LXC
11 27 (0.75%) KVM
11 27 (0.75%) VMware ESXi
12 26 (0.72%) Virtual Servers
13 18 (0.50%) Kamailio
14 17 (0.47%) Oracle RAC
15 16 (0.45%) QEMU
16 14 (0.39%) XenApp
17 11 (0.31%) vCloud
18 10 (0.28%) NFS
18 10 (0.28%) Postfix
Systems Management
1 1,033 (28.78%) Kubernetes
2 816 (22.74%) Terraform
3 705 (19.64%) Ansible
4 459 (12.79%) Puppet
5 240 (6.69%) Prometheus
6 221 (6.16%) Opscode Chef
7 175 (4.88%) Grafana
8 80 (2.23%) Nagios
9 56 (1.56%) Consul
10 55 (1.53%) Kibana
11 49 (1.37%) ZABBIX
12 40 (1.11%) SCCM
13 35 (0.98%) Packer
14 31 (0.86%) HAProxy
15 29 (0.81%) Hadoop YARN
15 29 (0.81%) logstash
16 28 (0.78%) SCOM
17 24 (0.67%) Salt
18 23 (0.64%) Failover Clustering
18 23 (0.64%) Icinga
Vendors
1 407 (11.34%) Microsoft
2 312 (8.69%) Oracle
3 287 (8.00%) VMware
4 275 (7.66%) Red Hat
5 195 (5.43%) Google
6 177 (4.93%) Cisco
7 132 (3.68%) Splunk
8 76 (2.12%) HP
9 75 (2.09%) Citrix
10 62 (1.73%) IBM
11 57 (1.59%) Atlassian
12 54 (1.50%) ServiceNow
13 49 (1.37%) Apple
14 47 (1.31%) Dell
15 40 (1.11%) Juniper
16 38 (1.06%) F5
17 35 (0.98%) Bloomberg
17 35 (0.98%) Veeam
18 32 (0.89%) SAP
19 31 (0.86%) NetApp