Period
to 13 April 2021

The following table provides summary statistics for permanent job vacancies 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 13 April 2021 with a comparison to the same period in the previous 2 years.

Linux
UK
6 months to
13 Apr 2021
Same period 2020 Same period 2019
Rank 21 22 20
Rank change year-on-year +1 -2 -4
Permanent jobs citing Linux 7,875 10,216 15,534
As % of all permanent jobs advertised in the UK 9.48% 8.97% 10.43%
As % of the Operating Systems category 48.46% 41.92% 45.15%
Number of salaries quoted 6,107 8,143 12,396
10th Percentile £32,500 £31,250 £31,250
25th Percentile £41,250 £40,000 £38,750
Median annual salary (50th Percentile) £55,000 £53,931 £52,500
Median % change year-on-year +1.98% +2.73% +5.00%
75th Percentile £73,750 £72,500 £70,000
90th Percentile £87,500 £87,500 £85,000
UK excluding London median annual salary £47,500 £46,500 £45,000
% change year-on-year +2.15% +3.33% -

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 with a requirement for operating system skills.

All Operating Systems
UK
Permanent vacancies with a requirement for operating system skills 16,249 24,370 34,403
As % of all permanent IT jobs advertised in the UK 19.57% 21.41% 23.11%
Number of salaries quoted 13,164 19,864 27,780
10th Percentile £27,500 £26,000 £25,851
25th Percentile £36,250 £32,500 £32,500
Median annual salary (50th Percentile) £50,000 £47,500 £47,500
Median % change year-on-year +5.26% - +5.56%
75th Percentile £67,500 £65,000 £65,000
90th Percentile £82,500 £80,000 £78,750
UK excluding London median annual salary £45,000 £42,500 £42,000
% change year-on-year +5.88% +1.19% +5.00%

Linux
Job Vacancy Trend

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

Job vacancy trend for Linux in the UK

Linux
Salary Trend

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

Salary trend for Linux in the UK

Linux
Salary Histogram

Salary distribution for jobs citing Linux over the 6 months to 13 April 2021.

Salary histogram for Linux in the UK

Linux
Top 19 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Linux within the UK over the 6 months to 13 April 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
England +3 7,057 £57,500 +4.55% 1,771
UK excluding London +2 4,771 £47,500 +2.15% 1,269
London +3 2,697 £70,000 +3.70% 593
Work from Home +9 1,641 £55,000 - 382
North of England +6 1,190 £50,000 - 265
South East -3 1,153 £50,000 +1.01% 344
South West +5 876 £47,500 +10.47% 186
Midlands +5 641 £47,500 +5.26% 185
North West +6 577 £47,500 -5.00% 132
Yorkshire +6 443 £52,500 +5.00% 98
West Midlands +2 393 £51,500 +9.28% 107
Scotland +9 392 £47,500 +5.56% 56
East of England +4 391 £55,000 +15.79% 188
East Midlands +10 242 £45,000 +5.88% 77
North East +22 170 £53,250 +43.92% 35
Northern Ireland +7 83 £42,500 +21.43% 11
Wales -20 62 £44,361 +6.89% 36
Channel Islands - 4 £36,000 -
Isle of Man - 1 - -

For the 6 months to 13 April 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 with a requirement for Linux.

1 2,779 (35.29%) DevOps
2 2,706 (34.36%) AWS
3 2,576 (32.71%) Python
4 2,468 (31.34%) Windows
5 2,173 (27.59%) Docker
6 2,163 (27.47%) Agile Software Development
7 1,828 (23.21%) Azure
8 1,719 (21.83%) Kubernetes
9 1,690 (21.46%) Terraform
10 1,627 (20.66%) SQL
11 1,622 (20.60%) Git (software)
12 1,508 (19.15%) Ansible
13 1,495 (18.98%) Java
14 1,356 (17.22%) Software Engineering
15 1,205 (15.30%) Microsoft
16 1,191 (15.12%) Finance
17 1,167 (14.82%) JavaScript
18 1,158 (14.70%) Jenkins
19 1,137 (14.44%) Bash Shell
20 1,133 (14.39%) Problem-Solving
21 1,132 (14.37%) Unix
22 1,094 (13.89%) Puppet
23 1,093 (13.88%) VMware
24 893 (11.34%) Degree
25 870 (11.05%) C++
26 865 (10.98%) MySQL
27 846 (10.74%) Infrastructure as Code
28 832 (10.57%) PowerShell
29 804 (10.21%) Configuration Management
30 801 (10.17%) Firewall

Linux
Co-occurring IT Skills 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
1 403 (5.12%) Apache
2 383 (4.86%) Confluence
3 198 (2.51%) Elasticsearch
4 167 (2.12%) IIS
5 157 (1.99%) nginx
6 121 (1.54%) Tomcat
7 95 (1.21%) MS Exchange
8 93 (1.18%) SharePoint
9 87 (1.10%) CMS
10 86 (1.09%) Apache Spark
11 82 (1.04%) Apache Airflow
12 81 (1.03%) OpenStack
12 81 (1.03%) WordPress
13 55 (0.70%) WebLogic
14 50 (0.63%) Oracle SOA Suite
15 45 (0.57%) JBoss
16 35 (0.44%) Red Hat Fuse
17 32 (0.41%) WebSphere
18 21 (0.27%) Apache Solr
19 20 (0.25%) Drupal
Applications
1 136 (1.73%) Microsoft Office
2 60 (0.76%) Microsoft Excel
3 31 (0.39%) Microsoft Project
4 20 (0.25%) MS Visio
5 19 (0.24%) Photoshop
6 18 (0.23%) Microsoft PowerPoint
7 12 (0.15%) Simulink
8 7 (0.089%) Spreadsheet
9 6 (0.076%) Adobe XD
9 6 (0.076%) Gephi
10 5 (0.063%) Adobe Illustrator
10 5 (0.063%) Stata
11 4 (0.051%) Gliffy
12 3 (0.038%) Houdini
12 3 (0.038%) Maya
12 3 (0.038%) NUKE
12 3 (0.038%) OrCAD
13 2 (0.025%) Fireworks
13 2 (0.025%) GIMP
13 2 (0.025%) Inkscape
Business Applications
1 46 (0.58%) Magento
2 22 (0.28%) OpenCart
3 19 (0.24%) Oracle Applications
3 19 (0.24%) R3 Corda
4 16 (0.20%) Dynamics NAV
4 16 (0.20%) Sentinel
5 14 (0.18%) Oracle EBS
6 12 (0.15%) Shopify
7 11 (0.14%) Oracle EBS R12
7 11 (0.14%) Payment Gateway
8 9 (0.11%) Workfront
9 7 (0.089%) Oracle 11i
10 6 (0.076%) Remedy ITSM
11 5 (0.063%) JDE OneWorld
11 5 (0.063%) NetSuite
12 4 (0.051%) SAP Oil and Gas
13 3 (0.038%) Distributed Ledger
14 2 (0.025%) BambooHR
14 2 (0.025%) FLEXCUBE
14 2 (0.025%) Quorum
Cloud Services
1 2,706 (34.36%) AWS
2 1,828 (23.21%) Azure
3 595 (7.56%) GCP
4 466 (5.92%) AWS CloudFormation
5 445 (5.65%) SaaS
6 418 (5.31%) Microsoft 365
7 353 (4.48%) PaaS
8 334 (4.24%) GitHub
9 305 (3.87%) IaaS
10 276 (3.50%) Serverless
11 252 (3.20%) Amazon EC2
12 214 (2.72%) Amazon EKS
13 179 (2.27%) Amazon S3
14 169 (2.15%) AWS Lambda
15 161 (2.04%) Azure Active Directory
16 157 (1.99%) Amazon ECS
17 148 (1.88%) Cloud Computing
18 130 (1.65%) OpenShift
19 114 (1.45%) Amazon CloudWatch
20 87 (1.10%) Virtual Private Cloud
Communications & Networking
1 801 (10.17%) Firewall
2 486 (6.17%) TCP/IP
3 438 (5.56%) DNS
4 300 (3.81%) VPN
5 256 (3.25%) WAN
6 236 (3.00%) HTTP
7 234 (2.97%) LAN
8 216 (2.74%) DHCP
9 191 (2.43%) Internet
10 183 (2.32%) Wireless
11 173 (2.20%) SAN
12 158 (2.01%) Network Security
13 148 (1.88%) VLAN
14 122 (1.55%) SSL
15 113 (1.43%) OSPF
16 111 (1.41%) Wi-Fi
17 103 (1.31%) SSH
18 101 (1.28%) IPv4
19 97 (1.23%) VoIP
20 90 (1.14%) BGP
Database & Business Intelligence
1 865 (10.98%) MySQL
2 598 (7.59%) SQL Server
3 472 (5.99%) PostgreSQL
4 376 (4.77%) NoSQL
5 349 (4.43%) Relational Database
6 285 (3.62%) MongoDB
7 258 (3.28%) Big Data
8 183 (2.32%) Redis
9 175 (2.22%) Amazon RDS
10 157 (1.99%) Oracle Database
11 143 (1.82%) Data Warehouse
12 115 (1.46%) MariaDB
13 106 (1.35%) Hadoop
14 102 (1.30%) RDBMS
14 102 (1.30%) SQL Server Integration Services
14 102 (1.30%) SQL Server Reporting Services
15 80 (1.02%) Apache Cassandra
16 79 (1.00%) Amazon DynamoDB
17 78 (0.99%) Blockchain
18 56 (0.71%) Azure SQL Database
Development Applications
1 1,622 (20.60%) Git (software)
2 1,158 (14.70%) Jenkins
3 711 (9.03%) JIRA
4 431 (5.47%) GitLab
5 213 (2.70%) TeamCity
6 199 (2.53%) Maven
7 189 (2.40%) Bitbucket
8 158 (2.01%) Subversion
9 148 (1.88%) JUnit
10 146 (1.85%) Atlassian Bamboo
11 137 (1.74%) Octopus Deploy
12 131 (1.66%) Selenium
13 86 (1.09%) Artifactory
14 79 (1.00%) Gradle
15 75 (0.95%) Cucumber
16 74 (0.94%) Sonatype Nexus
17 71 (0.90%) JMeter
18 64 (0.81%) Visual Studio
19 61 (0.77%) Travis CI
20 50 (0.63%) IntelliJ
General
1 1,191 (15.12%) Finance
2 316 (4.01%) Banking
3 292 (3.71%) Public Sector
4 277 (3.52%) Telecoms
5 261 (3.31%) Marketing
6 252 (3.20%) Electronics
7 231 (2.93%) Games
8 224 (2.84%) Retail
9 196 (2.49%) Law
10 190 (2.41%) Manufacturing
11 146 (1.85%) Back Office
12 113 (1.43%) Legal
13 102 (1.30%) Front Office
14 71 (0.90%) Investment Banking
15 64 (0.81%) Advertising
16 41 (0.52%) Financial Institution
17 40 (0.51%) Aerospace
17 40 (0.51%) Automotive
18 38 (0.48%) Publishing
19 27 (0.34%) Military
Job Titles
1 1,662 (21.10%) Developer
2 1,591 (20.20%) DevOps Engineer
3 644 (8.18%) Software Engineer
4 576 (7.31%) AWS Engineer
5 541 (6.87%) Linux Engineer
6 461 (5.85%) AWS DevOps
7 440 (5.59%) AWS DevOps Engineer
8 430 (5.46%) Infrastructure Engineer
9 373 (4.74%) Cloud Engineer
10 371 (4.71%) Senior DevOps
11 367 (4.66%) Administrator
12 351 (4.46%) Senior DevOps Engineer
13 338 (4.29%) PHP Developer
13 338 (4.29%) Senior Developer
14 322 (4.09%) Java Developer
15 297 (3.77%) Support Engineer
16 279 (3.54%) Software Developer
17 274 (3.48%) Analyst
17 274 (3.48%) Architect
18 263 (3.34%) IT Engineer
Libraries, Frameworks & Software Standards
1 788 (10.01%) HTML
2 669 (8.50%) CSS
3 513 (6.51%) Web Services
4 462 (5.87%) Node.js
5 419 (5.32%) REST
6 402 (5.10%) .NET
7 379 (4.81%) React
8 324 (4.11%) RESTful
8 324 (4.11%) Spring
9 318 (4.04%) AngularJS
10 316 (4.01%) Kafka
11 248 (3.15%) HTML5
12 245 (3.11%) LAMP
13 228 (2.90%) jQuery
14 214 (2.72%) Elastic Stack
15 198 (2.51%) Laravel
16 195 (2.48%) JSON
17 188 (2.39%) XML
18 177 (2.25%) SOAP
19 162 (2.06%) .NET Core
Miscellaneous
1 518 (6.58%) Analytical Skills
2 371 (4.71%) Linux Command Line
3 330 (4.19%) Data Centre
4 284 (3.61%) Public Cloud
5 233 (2.96%) Self-Motivation
6 216 (2.74%) Greenfield Project
7 194 (2.46%) Management Information System
8 176 (2.23%) Algorithms
9 172 (2.18%) Cloud Native
10 163 (2.07%) Hybrid Cloud
11 143 (1.82%) Enterprise Software
12 130 (1.65%) Data Structures
13 121 (1.54%) Mobile App
14 108 (1.37%) Embedded Systems
15 106 (1.35%) Hedge funds
15 106 (1.35%) User Experience
16 101 (1.28%) Clustering
17 97 (1.23%) Virtual Team
18 96 (1.22%) Equities
18 96 (1.22%) Replication
Operating Systems
1 2,468 (31.34%) Windows
2 1,132 (14.37%) Unix
3 709 (9.00%) Windows Server
4 642 (8.15%) Red Hat Enterprise Linux
5 583 (7.40%) CentOS
6 482 (6.12%) Ubuntu
7 181 (2.30%) Android
8 160 (2.03%) Windows Server 2016
9 145 (1.84%) Windows 10
10 135 (1.71%) Debian
10 135 (1.71%) Embedded Linux
11 114 (1.45%) Apple iOS
12 96 (1.22%) Windows Server 2012
13 82 (1.04%) Solaris
14 81 (1.03%) Mac OS
15 68 (0.86%) Windows Server 2008
16 65 (0.83%) Windows Server 2019
17 57 (0.72%) AIX
18 55 (0.70%) Oracle Linux
19 54 (0.69%) VMS
Processes & Methodologies
1 2,779 (35.29%) DevOps
2 2,163 (27.47%) Agile Software Development
3 1,356 (17.22%) Software Engineering
4 1,133 (14.39%) Problem-Solving
5 846 (10.74%) Infrastructure as Code
6 804 (10.21%) Configuration Management
7 745 (9.46%) Continuous Integration
8 735 (9.33%) Microservices
9 726 (9.22%) Scrum
10 634 (8.05%) Computer Science
11 604 (7.67%) Infrastructure Engineering
12 572 (7.26%) Test Automation
13 466 (5.92%) Open Source
14 465 (5.90%) TDD
15 464 (5.89%) Analytics
16 452 (5.74%) ITIL
17 432 (5.49%) Mentoring
18 423 (5.37%) Site Reliability Engineering
19 418 (5.31%) OO
20 416 (5.28%) Cybersecurity
Programming Languages
1 2,576 (32.71%) Python
2 1,627 (20.66%) SQL
3 1,495 (18.98%) Java
4 1,167 (14.82%) JavaScript
5 1,137 (14.44%) Bash Shell
6 870 (11.05%) C++
7 832 (10.57%) PowerShell
8 764 (9.70%) PHP
9 583 (7.40%) C
10 539 (6.84%) C#
11 487 (6.18%) Go
12 384 (4.88%) Perl
13 379 (4.81%) Ruby
14 373 (4.74%) Shell Script
15 169 (2.15%) TypeScript
16 106 (1.35%) Groovy
17 101 (1.28%) Scala
18 90 (1.14%) PL/SQL
19 87 (1.10%) T-SQL
20 86 (1.09%) Java 8
Qualifications
1 893 (11.34%) Degree
2 696 (8.84%) Security Cleared
3 502 (6.37%) SC Cleared
4 281 (3.57%) Computer Science Degree
5 240 (3.05%) Cisco Certification
6 181 (2.30%) Linux+ Certification
7 180 (2.29%) Network+ Certification
8 171 (2.17%) CCNA
9 162 (2.06%) AWS Certification
10 153 (1.94%) Microsoft Certification
11 127 (1.61%) CompTIA Security+
12 124 (1.57%) DV Cleared
13 102 (1.30%) A+ Certification
13 102 (1.30%) Server+ Certification
14 86 (1.09%) MCSE
15 80 (1.02%) CCNP
16 76 (0.97%) CISSP
17 71 (0.90%) RHCE
18 58 (0.74%) MCSA
19 46 (0.58%) GIAC
Quality Assurance & Compliance
1 341 (4.33%) QA
2 134 (1.70%) SLA
3 117 (1.49%) ISO/IEC 27001
4 83 (1.05%) PCI DSS
5 66 (0.84%) GDPR
6 52 (0.66%) NIST
7 34 (0.43%) Cyber Essentials
8 24 (0.30%) Cyber Essentials PLUS
9 23 (0.29%) ISO 9001
10 17 (0.22%) COBIT
10 17 (0.22%) PMBOK
11 15 (0.19%) GRC
12 14 (0.18%) Def Stans
13 13 (0.17%) Sarbanes-Oxley
14 12 (0.15%) SOC 2
15 11 (0.14%) HIPAA
15 11 (0.14%) MISRA
16 10 (0.13%) NCSC
16 10 (0.13%) SOC 1
17 9 (0.11%) PSD2
System Software
1 2,173 (27.59%) Docker
2 784 (9.96%) VMware Infrastructure
3 686 (8.71%) Active Directory
4 306 (3.89%) Hyper-V
5 192 (2.44%) VMware ESXi
6 135 (1.71%) vSphere
7 131 (1.66%) Firmware
8 125 (1.59%) Virtual Machines
9 86 (1.09%) KVM
10 54 (0.69%) Virtual Servers
11 46 (0.58%) Xen
12 39 (0.50%) Oracle RAC
13 36 (0.46%) VirtualBox
14 29 (0.37%) XenDesktop
15 28 (0.36%) VMware NSX
16 26 (0.33%) HDFS
17 25 (0.32%) XenApp
18 24 (0.30%) Postfix
19 23 (0.29%) Kamailio
20 22 (0.28%) Microsoft Virtual Server
Systems Management
1 1,719 (21.83%) Kubernetes
2 1,690 (21.46%) Terraform
3 1,508 (19.15%) Ansible
4 1,094 (13.89%) Puppet
5 631 (8.01%) Opscode Chef
6 241 (3.06%) Prometheus
7 180 (2.29%) Grafana
8 139 (1.77%) Nagios
9 120 (1.52%) ZABBIX
10 111 (1.41%) SCCM
11 90 (1.14%) Istio
12 83 (1.05%) Graphite
13 82 (1.04%) Packer
14 71 (0.90%) Consul
15 60 (0.76%) SCOM
16 58 (0.74%) HAProxy
17 56 (0.71%) Rancher
18 52 (0.66%) Salt
18 52 (0.66%) Single Sign-On
19 49 (0.62%) Microsoft Intune
Vendors
1 1,205 (15.30%) Microsoft
2 1,093 (13.88%) VMware
3 738 (9.37%) Red Hat
4 624 (7.92%) Oracle
5 471 (5.98%) Cisco
6 433 (5.50%) Google
7 187 (2.37%) Splunk
8 160 (2.03%) Citrix
8 160 (2.03%) SAP
9 159 (2.02%) Atlassian
10 148 (1.88%) IBM
11 140 (1.78%) HP
12 120 (1.52%) EMC
13 110 (1.40%) Veeam
14 92 (1.17%) Juniper
15 85 (1.08%) SaltStack
16 81 (1.03%) Dell
17 80 (1.02%) Zend
18 73 (0.93%) ServiceNow
19 63 (0.80%) F5