Period
to 12 May 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 12 May 2021 with a comparison to the same period in the previous 2 years.

Linux
England > London
6 months to
12 May 2021
Same period 2020 Same period 2019
Rank 25 29 19
Rank change year-on-year +4 -10 -1
Permanent jobs citing Linux 2,863 3,454 5,958
As % of all permanent jobs advertised in London 8.62% 8.45% 10.11%
As % of the Operating Systems category 49.38% 43.23% 46.04%
Number of salaries quoted 2,184 2,782 4,971
10th Percentile £46,250 £40,800 £37,500
25th Percentile £56,750 £52,500 £47,500
Median annual salary (50th Percentile) £72,500 £67,500 £65,000
Median % change year-on-year +7.41% +3.85% -
75th Percentile £87,500 £85,000 £82,500
90th Percentile £100,000 £100,000 £97,500
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 5,798 7,990 12,941
As % of all permanent IT jobs advertised in London 17.47% 19.55% 21.97%
Number of salaries quoted 4,576 6,546 10,862
10th Percentile £35,250 £31,250 £30,000
25th Percentile £48,750 £41,750 £41,250
Median annual salary (50th Percentile) £65,000 £60,000 £60,000
Median % change year-on-year +8.33% - +6.19%
75th Percentile £82,500 £77,500 £76,250
90th Percentile £95,000 £91,250 £90,000
England median annual salary £50,000 £47,750 £47,500
% change year-on-year +4.71% +0.53% -

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 12 May 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 12 May 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 -9 506 £75,000 +7.14% 213
South London -1 82 £62,500 -5.66% 15
West London -26 56 £52,500 -4.55% 82
East London +4 11 £60,000 -17.24% 24
North London +10 2 £70,000 +27.27% 5
Linux
England

For the 6 months to 12 May 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 1,198 (41.84%) Python
2 1,067 (37.27%) AWS
3 1,063 (37.13%) DevOps
4 904 (31.58%) Docker
5 874 (30.53%) Windows
6 778 (27.17%) Kubernetes
7 771 (26.93%) Finance
8 751 (26.23%) Agile Software Development
9 677 (23.65%) Terraform
10 667 (23.30%) SQL
11 654 (22.84%) Java
12 638 (22.28%) Azure
13 579 (20.22%) Ansible
14 561 (19.59%) Unix
15 546 (19.07%) Jenkins
16 545 (19.04%) Social Skills
17 451 (15.75%) Bash Shell
18 412 (14.39%) Git (software)
19 411 (14.36%) Software Engineering
20 397 (13.87%) JavaScript
21 379 (13.24%) Puppet
22 377 (13.17%) Infrastructure as Code
23 374 (13.06%) Microsoft
24 351 (12.26%) C++
25 334 (11.67%) Degree
26 321 (11.21%) Microservices
27 314 (10.97%) GCP
28 292 (10.20%) Firewall
29 288 (10.06%) Problem-Solving
30 276 (9.64%) JIRA

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
1 130 (4.54%) Confluence
2 128 (4.47%) Apache
3 114 (3.98%) Elasticsearch
4 77 (2.69%) nginx
5 73 (2.55%) Apache Airflow
6 68 (2.38%) IIS
7 58 (2.03%) Tomcat
8 44 (1.54%) Apache Spark
9 30 (1.05%) OpenStack
10 29 (1.01%) Oracle SOA Suite
11 26 (0.91%) CMS
12 24 (0.84%) SharePoint
13 23 (0.80%) WebLogic
14 17 (0.59%) MS Exchange
15 14 (0.49%) Tornado
16 13 (0.45%) ejabberd
16 13 (0.45%) Red Hat Fuse
16 13 (0.45%) WebSphere
17 10 (0.35%) Cloud Foundry
17 10 (0.35%) JBoss
Applications
1 52 (1.82%) Microsoft Office
2 38 (1.33%) Microsoft Excel
3 8 (0.28%) Microsoft PowerPoint
3 8 (0.28%) MS Visio
4 7 (0.24%) Spreadsheet
5 5 (0.17%) Adobe Illustrator
5 5 (0.17%) GIMP
5 5 (0.17%) Photoshop
5 5 (0.17%) Stata
6 2 (0.070%) Gephi
7 1 (0.035%) OrCAD
Business Applications
1 19 (0.66%) R3 Corda
2 7 (0.24%) Oracle Applications
3 4 (0.14%) Distributed Ledger
3 4 (0.14%) Dynamics NAV
4 3 (0.10%) Sentinel
5 2 (0.070%) Magento
5 2 (0.070%) Oracle EBS
5 2 (0.070%) Payment Gateway
5 2 (0.070%) Workfront
6 1 (0.035%) Bloomberg TOMS
6 1 (0.035%) FINCAD Analytics
6 1 (0.035%) IntelliMatch
6 1 (0.035%) ION MarketView
6 1 (0.035%) MetaTrader
6 1 (0.035%) NetSuite
6 1 (0.035%) Oracle EBS R12
6 1 (0.035%) Relativity
6 1 (0.035%) Shopify
6 1 (0.035%) SunGard Martini
6 1 (0.035%) Temenos T24
Cloud Services
1 1,067 (37.27%) AWS
2 638 (22.28%) Azure
3 314 (10.97%) GCP
4 180 (6.29%) SaaS
5 148 (5.17%) AWS CloudFormation
6 137 (4.79%) GitHub
7 127 (4.44%) Serverless
8 119 (4.16%) IaaS
9 116 (4.05%) Amazon EC2
10 112 (3.91%) Microsoft 365
11 102 (3.56%) Amazon ECS
12 98 (3.42%) Amazon S3
13 96 (3.35%) PaaS
14 90 (3.14%) AWS Lambda
15 85 (2.97%) Amazon EKS
16 47 (1.64%) Datadog
17 41 (1.43%) OpenShift
18 40 (1.40%) Cloud Computing
19 38 (1.33%) Azure Active Directory
20 35 (1.22%) Amazon CloudWatch
Communications & Networking
1 292 (10.20%) Firewall
2 149 (5.20%) TCP/IP
3 145 (5.06%) DNS
4 93 (3.25%) HTTP
5 90 (3.14%) VPN
6 79 (2.76%) Internet
7 78 (2.72%) DHCP
8 72 (2.51%) Network Security
9 67 (2.34%) LAN
10 66 (2.31%) WAN
11 61 (2.13%) SSH
12 50 (1.75%) SAN
13 48 (1.68%) BGP
14 44 (1.54%) SNMP
15 41 (1.43%) VLAN
16 33 (1.15%) Broadband
16 33 (1.15%) SSL
16 33 (1.15%) VoIP
17 30 (1.05%) FTP
18 28 (0.98%) Wireless
Database & Business Intelligence
1 249 (8.70%) MySQL
2 226 (7.89%) PostgreSQL
3 205 (7.16%) SQL Server
4 172 (6.01%) Relational Database
5 147 (5.13%) MongoDB
6 134 (4.68%) NoSQL
7 127 (4.44%) Big Data
8 100 (3.49%) Redis
9 94 (3.28%) Data Warehouse
10 88 (3.07%) Amazon RDS
11 70 (2.44%) SQL Server Integration Services
11 70 (2.44%) SQL Server Reporting Services
12 67 (2.34%) Hadoop
13 61 (2.13%) Blockchain
14 52 (1.82%) RDBMS
15 50 (1.75%) Apache Cassandra
16 49 (1.71%) MariaDB
17 45 (1.57%) Oracle Database
18 27 (0.94%) Amazon DynamoDB
19 22 (0.77%) KDB
Development Applications
1 546 (19.07%) Jenkins
2 412 (14.39%) Git (software)
3 276 (9.64%) JIRA
4 169 (5.90%) GitLab
5 106 (3.70%) TeamCity
6 105 (3.67%) Maven
7 93 (3.25%) Atlassian Bamboo
8 65 (2.27%) Bitbucket
9 57 (1.99%) Selenium
10 51 (1.78%) JMeter
11 42 (1.47%) Artifactory
12 40 (1.40%) Travis CI
13 38 (1.33%) Octopus Deploy
14 37 (1.29%) JUnit
14 37 (1.29%) Sonatype Nexus
15 36 (1.26%) Gradle
16 33 (1.15%) Cucumber
17 32 (1.12%) LoadRunner
18 23 (0.80%) CircleCI
18 23 (0.80%) Mockito
General
1 771 (26.93%) Finance
2 545 (19.04%) Social Skills
3 273 (9.54%) Banking
4 226 (7.89%) Analytical Skills
5 146 (5.10%) Games
6 135 (4.72%) Back Office
7 99 (3.46%) Telecoms
8 93 (3.25%) Front Office
9 86 (3.00%) Marketing
10 79 (2.76%) Electronics
11 73 (2.55%) Manufacturing
12 71 (2.48%) Investment Banking
12 71 (2.48%) Retail
13 70 (2.44%) Public Sector
14 62 (2.17%) Legal
15 58 (2.03%) Organisational Skills
16 45 (1.57%) Advertising
17 44 (1.54%) Presentation Skills
18 38 (1.33%) Financial Institution
19 28 (0.98%) Law
Job Titles
1 609 (21.27%) Developer
2 583 (20.36%) DevOps Engineer
3 186 (6.50%) AWS Engineer
4 183 (6.39%) Linux Engineer
5 162 (5.66%) Java Developer
5 162 (5.66%) Software Engineer
6 158 (5.52%) Senior Developer
7 154 (5.38%) Senior DevOps
8 145 (5.06%) Senior DevOps Engineer
9 130 (4.54%) Analyst
10 128 (4.47%) Cloud Engineer
11 126 (4.40%) AWS DevOps
12 122 (4.26%) Infrastructure Engineer
13 119 (4.16%) Applications Support
14 116 (4.05%) AWS DevOps Engineer
15 104 (3.63%) Administrator
16 99 (3.46%) Kubernetes Engineer
17 94 (3.28%) Systems Engineer
18 86 (3.00%) Consultant
19 83 (2.90%) Site Reliability Engineer
Libraries, Frameworks & Software Standards
1 213 (7.44%) .NET
2 195 (6.81%) HTML
3 180 (6.29%) Web Services
4 175 (6.11%) Spring
5 174 (6.08%) Node.js
6 165 (5.76%) React
7 155 (5.41%) CSS
8 151 (5.27%) REST
9 132 (4.61%) RESTful
10 126 (4.40%) Kafka
11 115 (4.02%) Elastic Stack
12 104 (3.63%) AngularJS
13 100 (3.49%) FIX Protocol
14 94 (3.28%) .NET Core
15 85 (2.97%) RabbitMQ
16 82 (2.86%) XML
17 73 (2.55%) Django
18 72 (2.51%) Hibernate
19 67 (2.34%) HTML5
20 62 (2.17%) LAMP
Miscellaneous
1 153 (5.34%) Data Centre
2 140 (4.89%) Linux Command Line
3 132 (4.61%) Algorithms
4 109 (3.81%) Data Structures
5 95 (3.32%) Self-Motivation
6 92 (3.21%) Hedge funds
7 87 (3.04%) Cloud Native
7 87 (3.04%) Greenfield Project
8 79 (2.76%) Public Cloud
9 78 (2.72%) Equities
10 74 (2.58%) Derivative
11 73 (2.55%) Fixed Income
12 67 (2.34%) Management Information System
13 65 (2.27%) Clustering
14 59 (2.06%) Virtual Team
15 57 (1.99%) Foreign Exchange (FX)
16 50 (1.75%) User Experience
17 49 (1.71%) Enterprise Software
18 47 (1.64%) Replication
19 45 (1.57%) PKI
Operating Systems
1 874 (30.53%) Windows
2 561 (19.59%) Unix
3 211 (7.37%) Red Hat Enterprise Linux
4 204 (7.13%) Windows Server
5 183 (6.39%) CentOS
6 145 (5.06%) Ubuntu
7 83 (2.90%) Android
8 64 (2.24%) Debian
9 51 (1.78%) Apple iOS
10 39 (1.36%) Windows 10
11 38 (1.33%) Solaris
12 36 (1.26%) Mac OS
13 34 (1.19%) Oracle Linux
14 28 (0.98%) Windows Server 2016
15 26 (0.91%) Embedded Linux
16 24 (0.84%) VMS
17 22 (0.77%) Mac OS X
18 20 (0.70%) Windows Server 2019
19 18 (0.63%) Windows Server 2008
20 15 (0.52%) Windows 7
Processes & Methodologies
1 1,063 (37.13%) DevOps
2 751 (26.23%) Agile Software Development
3 411 (14.36%) Software Engineering
4 377 (13.17%) Infrastructure as Code
5 321 (11.21%) Microservices
6 288 (10.06%) Problem-Solving
7 273 (9.54%) Fintech
8 263 (9.19%) TDD
9 261 (9.12%) Test Automation
10 256 (8.94%) Continuous Integration
11 250 (8.73%) Computer Science
12 235 (8.21%) Configuration Management
13 228 (7.96%) Open Source
14 186 (6.50%) Analytics
15 185 (6.46%) Site Reliability Engineering
16 183 (6.39%) Scrum
17 181 (6.32%) Infrastructure Engineering
18 173 (6.04%) Continuous Delivery
19 162 (5.66%) Cybersecurity
20 156 (5.45%) Mentoring
Programming Languages
1 1,198 (41.84%) Python
2 667 (23.30%) SQL
3 654 (22.84%) Java
4 451 (15.75%) Bash Shell
5 397 (13.87%) JavaScript
6 351 (12.26%) C++
7 251 (8.77%) PowerShell
8 235 (8.21%) C#
9 199 (6.95%) Go
10 186 (6.50%) Perl
11 182 (6.36%) Shell Script
12 169 (5.90%) C
13 148 (5.17%) PHP
14 126 (4.40%) Ruby
15 97 (3.39%) TypeScript
16 82 (2.86%) Scala
17 65 (2.27%) Groovy
18 59 (2.06%) Rust
19 53 (1.85%) Java 8
20 45 (1.57%) R
Qualifications
1 334 (11.67%) Degree
2 160 (5.59%) Security Cleared
3 138 (4.82%) Computer Science Degree
4 115 (4.02%) SC Cleared
5 74 (2.58%) Cisco Certification
6 51 (1.78%) CCNA
7 41 (1.43%) DV Cleared
8 40 (1.40%) Microsoft Certification
9 28 (0.98%) AWS Certification
9 28 (0.98%) CEH
9 28 (0.98%) CISSP
10 24 (0.84%) CompTIA Security+
10 24 (0.84%) Linux+ Certification
11 23 (0.80%) CCNP
12 22 (0.77%) ITIL Certification
13 21 (0.73%) Network+ Certification
14 20 (0.70%) ITIL Foundation Certificate
15 17 (0.59%) Master's Degree
15 17 (0.59%) OSCP
15 17 (0.59%) RHCSA
Quality Assurance & Compliance
1 133 (4.65%) QA
2 46 (1.61%) ISO/IEC 27001
3 35 (1.22%) PCI DSS
4 28 (0.98%) SLA
5 23 (0.80%) PSD2
6 17 (0.59%) NIST
7 13 (0.45%) GDPR
8 12 (0.42%) COBIT
8 12 (0.42%) GRC
9 11 (0.38%) Cyber Essentials
10 6 (0.21%) Cyber Essentials PLUS
10 6 (0.21%) SOC 1
10 6 (0.21%) SOC 2
11 5 (0.17%) NCSC
12 4 (0.14%) Government Security Classifications
12 4 (0.14%) ISO 13485
12 4 (0.14%) Sarbanes-Oxley
13 3 (0.10%) Data Quality
13 3 (0.10%) FedRAMP
13 3 (0.10%) ISO/IEC 20000
System Software
1 904 (31.58%) Docker
2 226 (7.89%) Active Directory
3 169 (5.90%) VMware Infrastructure
4 67 (2.34%) Hyper-V
5 44 (1.54%) Virtual Machines
6 34 (1.19%) KVM
7 31 (1.08%) Firmware
8 30 (1.05%) vSphere
9 28 (0.98%) iptables
10 26 (0.91%) VMware ESXi
11 23 (0.80%) Kamailio
12 20 (0.70%) LXC
12 20 (0.70%) Oracle RAC
13 18 (0.63%) QEMU
14 16 (0.56%) Postfix
15 14 (0.49%) Apache ZooKeeper
15 14 (0.49%) Xen
16 13 (0.45%) Virtual Servers
17 11 (0.38%) NFS
17 11 (0.38%) XenApp
Systems Management
1 778 (27.17%) Kubernetes
2 677 (23.65%) Terraform
3 579 (20.22%) Ansible
4 379 (13.24%) Puppet
5 174 (6.08%) Opscode Chef
6 137 (4.79%) Prometheus
7 96 (3.35%) Grafana
8 60 (2.10%) Nagios
9 46 (1.61%) ZABBIX
10 33 (1.15%) Consul
11 32 (1.12%) Packer
12 31 (1.08%) HAProxy
13 29 (1.01%) Salt
13 29 (1.01%) SCOM
14 28 (0.98%) Galera Cluster
15 25 (0.87%) Kibana
16 24 (0.84%) Istio
16 24 (0.84%) Single Sign-On
17 21 (0.73%) Oracle RMAN
18 20 (0.70%) SCCM
Vendors
1 374 (13.06%) Microsoft
2 250 (8.73%) VMware
3 237 (8.28%) Red Hat
4 211 (7.37%) Oracle
5 180 (6.29%) Google
6 152 (5.31%) Cisco
7 90 (3.14%) Splunk
8 71 (2.48%) HP
9 59 (2.06%) Atlassian
10 58 (2.03%) Citrix
11 52 (1.82%) SAP
12 45 (1.57%) IBM
13 44 (1.54%) Juniper
14 43 (1.50%) Sybase
15 41 (1.43%) Bloomberg
16 33 (1.15%) ServiceNow
16 33 (1.15%) Veeam
17 32 (1.12%) Fidessa
18 31 (1.08%) Apple
19 30 (1.05%) SonicWALL