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

Linux
UK
6 months to
12 Apr 2021
Same period 2020 Same period 2019
Rank 20 22 20
Rank change year-on-year +2 -2 -4
Permanent jobs citing Linux 7,825 10,176 15,543
As % of all permanent jobs advertised in the UK 9.48% 8.96% 10.44%
As % of the Operating Systems category 48.35% 41.88% 45.16%
Number of salaries quoted 6,056 8,105 12,398
10th Percentile £32,500 £31,250 £31,250
25th Percentile £41,250 £40,000 £38,750
Median annual salary (50th Percentile) £55,000 £53,500 £52,500
Median % change year-on-year +2.80% +1.90% +5.00%
75th Percentile £73,750 £72,312 £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 16,185 24,300 34,419
As % of all permanent IT jobs advertised in the UK 19.61% 21.41% 23.11%
Number of salaries quoted 13,102 19,792 27,789
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 12 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 12 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 7,012 £57,500 +4.55% 1,768
UK excluding London +2 4,740 £47,500 +2.15% 1,270
London +3 2,689 £70,000 +3.70% 588
Work from Home +10 1,622 £55,000 - 383
North of England +6 1,174 £50,000 - 270
South East -3 1,143 £50,000 - 339
South West +5 874 £47,500 +7.95% 185
Midlands +5 639 £47,500 +5.26% 186
North West +5 569 £47,500 -5.00% 133
Yorkshire +6 436 £52,500 +5.00% 102
Scotland +9 393 £47,500 +5.56% 56
West Midlands +2 391 £50,500 +6.88% 108
East of England +4 389 £55,000 +15.79% 190
East Midlands +13 242 £45,000 +5.88% 77
North East +21 169 £52,500 +41.89% 35
Northern Ireland +10 83 £42,500 +21.43% 10
Wales -19 62 £44,361 +6.89% 36
Channel Islands - 4 £36,000 -
Isle of Man - 1 - -

For the 6 months to 12 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 2,762 (35.30%) DevOps
2 2,690 (34.38%) AWS
3 2,569 (32.83%) Python
4 2,451 (31.32%) Windows
5 2,163 (27.64%) Docker
6 2,150 (27.48%) Agile Software Development
7 1,819 (23.25%) Azure
8 1,712 (21.88%) Kubernetes
9 1,680 (21.47%) Terraform
10 1,619 (20.69%) Git (software)
11 1,616 (20.65%) SQL
12 1,506 (19.25%) Ansible
13 1,491 (19.05%) Java
14 1,348 (17.23%) Software Engineering
15 1,197 (15.30%) Microsoft
16 1,188 (15.18%) Finance
17 1,156 (14.77%) JavaScript
18 1,154 (14.75%) Jenkins
19 1,132 (14.47%) Bash Shell
20 1,126 (14.39%) Unix
20 1,126 (14.39%) Problem-Solving
21 1,087 (13.89%) VMware
21 1,087 (13.89%) Puppet
22 891 (11.39%) Degree
23 868 (11.09%) C++
24 856 (10.94%) MySQL
25 838 (10.71%) Infrastructure as Code
26 829 (10.59%) PowerShell
27 802 (10.25%) Firewall
28 801 (10.24%) Configuration Management

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
1 397 (5.07%) Apache
2 381 (4.87%) Confluence
3 198 (2.53%) Elasticsearch
4 165 (2.11%) IIS
5 154 (1.97%) nginx
6 122 (1.56%) Tomcat
7 95 (1.21%) MS Exchange
8 93 (1.19%) SharePoint
9 87 (1.11%) Apache Spark
10 86 (1.10%) CMS
11 82 (1.05%) Apache Airflow
12 81 (1.04%) OpenStack
13 80 (1.02%) WordPress
14 54 (0.69%) WebLogic
15 50 (0.64%) Oracle SOA Suite
16 45 (0.58%) JBoss
17 35 (0.45%) Red Hat Fuse
18 30 (0.38%) WebSphere
19 21 (0.27%) Apache Solr
20 20 (0.26%) Drupal
Applications
1 136 (1.74%) Microsoft Office
2 61 (0.78%) Microsoft Excel
3 31 (0.40%) Microsoft Project
4 19 (0.24%) MS Visio
4 19 (0.24%) Photoshop
5 18 (0.23%) Microsoft PowerPoint
6 12 (0.15%) Simulink
7 7 (0.089%) Spreadsheet
8 6 (0.077%) Adobe XD
8 6 (0.077%) Gephi
9 5 (0.064%) Adobe Illustrator
9 5 (0.064%) Stata
10 4 (0.051%) Gliffy
11 3 (0.038%) Houdini
11 3 (0.038%) Maya
11 3 (0.038%) NUKE
11 3 (0.038%) OrCAD
12 2 (0.026%) Fireworks
12 2 (0.026%) GIMP
12 2 (0.026%) Inkscape
Business Applications
1 44 (0.56%) 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
8 9 (0.12%) Payment Gateway
8 9 (0.12%) Workfront
9 7 (0.089%) Oracle 11i
10 6 (0.077%) Remedy ITSM
11 5 (0.064%) JDE OneWorld
11 5 (0.064%) NetSuite
12 4 (0.051%) SAP Oil and Gas
13 3 (0.038%) Distributed Ledger
14 2 (0.026%) BambooHR
14 2 (0.026%) Quorum
14 2 (0.026%) Siebel CRM
Cloud Services
1 2,690 (34.38%) AWS
2 1,819 (23.25%) Azure
3 591 (7.55%) GCP
4 464 (5.93%) AWS CloudFormation
5 445 (5.69%) SaaS
6 418 (5.34%) Microsoft 365
7 354 (4.52%) PaaS
8 330 (4.22%) GitHub
9 303 (3.87%) IaaS
10 274 (3.50%) Serverless
11 249 (3.18%) Amazon EC2
12 216 (2.76%) Amazon EKS
13 177 (2.26%) Amazon S3
14 168 (2.15%) AWS Lambda
15 161 (2.06%) Azure Active Directory
16 157 (2.01%) Amazon ECS
17 148 (1.89%) Cloud Computing
18 130 (1.66%) OpenShift
19 115 (1.47%) Amazon CloudWatch
20 87 (1.11%) Virtual Private Cloud
Communications & Networking
1 802 (10.25%) Firewall
2 486 (6.21%) TCP/IP
3 436 (5.57%) DNS
4 297 (3.80%) VPN
5 256 (3.27%) WAN
6 234 (2.99%) LAN
7 233 (2.98%) HTTP
8 215 (2.75%) DHCP
9 189 (2.42%) Internet
10 181 (2.31%) Wireless
11 172 (2.20%) SAN
12 157 (2.01%) Network Security
13 148 (1.89%) VLAN
14 119 (1.52%) SSL
15 113 (1.44%) OSPF
16 111 (1.42%) Wi-Fi
17 103 (1.32%) IPv4
18 101 (1.29%) SSH
19 96 (1.23%) VoIP
20 90 (1.15%) BGP
Database & Business Intelligence
1 856 (10.94%) MySQL
2 594 (7.59%) SQL Server
3 471 (6.02%) PostgreSQL
4 373 (4.77%) NoSQL
5 346 (4.42%) Relational Database
6 285 (3.64%) MongoDB
7 259 (3.31%) Big Data
8 184 (2.35%) Redis
9 172 (2.20%) Amazon RDS
10 157 (2.01%) Oracle Database
11 143 (1.83%) Data Warehouse
12 112 (1.43%) MariaDB
13 107 (1.37%) Hadoop
14 102 (1.30%) RDBMS
15 101 (1.29%) SQL Server Integration Services
15 101 (1.29%) SQL Server Reporting Services
16 83 (1.06%) Apache Cassandra
17 78 (1.00%) Amazon DynamoDB
17 78 (1.00%) Blockchain
18 56 (0.72%) Azure SQL Database
Development Applications
1 1,619 (20.69%) Git (software)
2 1,154 (14.75%) Jenkins
3 708 (9.05%) JIRA
4 432 (5.52%) GitLab
5 211 (2.70%) TeamCity
6 200 (2.56%) Maven
7 189 (2.42%) Bitbucket
8 154 (1.97%) Subversion
9 147 (1.88%) JUnit
10 146 (1.87%) Atlassian Bamboo
11 134 (1.71%) Octopus Deploy
12 130 (1.66%) Selenium
13 84 (1.07%) Artifactory
14 80 (1.02%) Gradle
15 75 (0.96%) Cucumber
16 74 (0.95%) Sonatype Nexus
17 71 (0.91%) JMeter
18 64 (0.82%) Visual Studio
19 60 (0.77%) Travis CI
20 50 (0.64%) IntelliJ
General
1 1,188 (15.18%) Finance
2 316 (4.04%) Banking
3 287 (3.67%) Public Sector
4 276 (3.53%) Telecoms
5 259 (3.31%) Marketing
6 249 (3.18%) Electronics
7 232 (2.96%) Games
8 225 (2.88%) Retail
9 195 (2.49%) Law
10 189 (2.42%) Manufacturing
11 147 (1.88%) Back Office
12 113 (1.44%) Legal
13 102 (1.30%) Front Office
14 71 (0.91%) Investment Banking
15 62 (0.79%) Advertising
16 42 (0.54%) Financial Institution
17 41 (0.52%) Aerospace
18 39 (0.50%) Automotive
18 39 (0.50%) Publishing
19 29 (0.37%) Military
Job Titles
1 1,644 (21.01%) Developer
2 1,581 (20.20%) DevOps Engineer
3 637 (8.14%) Software Engineer
4 570 (7.28%) AWS Engineer
5 533 (6.81%) Linux Engineer
6 457 (5.84%) AWS DevOps
7 436 (5.57%) AWS DevOps Engineer
8 422 (5.39%) Infrastructure Engineer
9 371 (4.74%) Senior DevOps
10 370 (4.73%) Cloud Engineer
11 362 (4.63%) Administrator
12 351 (4.49%) Senior DevOps Engineer
13 336 (4.29%) Senior Developer
14 335 (4.28%) PHP Developer
15 320 (4.09%) Java Developer
16 297 (3.80%) Support Engineer
17 276 (3.53%) Architect
18 275 (3.51%) Software Developer
19 273 (3.49%) Analyst
20 262 (3.35%) IT Engineer
Libraries, Frameworks & Software Standards
1 781 (9.98%) HTML
2 660 (8.43%) CSS
3 511 (6.53%) Web Services
4 465 (5.94%) Node.js
5 414 (5.29%) REST
6 401 (5.12%) .NET
7 375 (4.79%) React
8 321 (4.10%) Spring
9 319 (4.08%) RESTful
10 314 (4.01%) Kafka
11 312 (3.99%) AngularJS
12 250 (3.19%) HTML5
13 241 (3.08%) LAMP
14 223 (2.85%) jQuery
15 215 (2.75%) Elastic Stack
16 194 (2.48%) JSON
16 194 (2.48%) Laravel
17 187 (2.39%) XML
18 174 (2.22%) SOAP
19 163 (2.08%) .NET Core
Miscellaneous
1 520 (6.65%) Analytical Skills
2 368 (4.70%) Linux Command Line
3 326 (4.17%) Data Centre
4 284 (3.63%) Public Cloud
5 230 (2.94%) Self-Motivation
6 215 (2.75%) Greenfield Project
7 193 (2.47%) Management Information System
8 178 (2.27%) Algorithms
9 173 (2.21%) Cloud Native
10 163 (2.08%) Hybrid Cloud
11 142 (1.81%) Enterprise Software
12 132 (1.69%) Data Structures
13 117 (1.50%) Mobile App
14 106 (1.35%) Embedded Systems
14 106 (1.35%) Hedge funds
15 105 (1.34%) User Experience
16 101 (1.29%) Clustering
17 97 (1.24%) Virtual Team
18 96 (1.23%) Equities
18 96 (1.23%) Replication
Operating Systems
1 2,451 (31.32%) Windows
2 1,126 (14.39%) Unix
3 702 (8.97%) Windows Server
4 638 (8.15%) Red Hat Enterprise Linux
5 581 (7.42%) CentOS
6 480 (6.13%) Ubuntu
7 180 (2.30%) Android
8 159 (2.03%) Windows Server 2016
9 143 (1.83%) Windows 10
10 136 (1.74%) Debian
11 130 (1.66%) Embedded Linux
12 113 (1.44%) Apple iOS
13 96 (1.23%) Windows Server 2012
14 82 (1.05%) Solaris
15 81 (1.04%) Mac OS
16 68 (0.87%) Windows Server 2008
17 65 (0.83%) Windows Server 2019
18 57 (0.73%) AIX
19 54 (0.69%) Oracle Linux
19 54 (0.69%) VMS
Processes & Methodologies
1 2,762 (35.30%) DevOps
2 2,150 (27.48%) Agile Software Development
3 1,348 (17.23%) Software Engineering
4 1,126 (14.39%) Problem-Solving
5 838 (10.71%) Infrastructure as Code
6 801 (10.24%) Configuration Management
7 739 (9.44%) Continuous Integration
8 728 (9.30%) Microservices
9 719 (9.19%) Scrum
10 631 (8.06%) Computer Science
11 594 (7.59%) Infrastructure Engineering
12 571 (7.30%) Test Automation
13 467 (5.97%) Open Source
13 467 (5.97%) TDD
14 466 (5.96%) Analytics
15 453 (5.79%) ITIL
16 429 (5.48%) Mentoring
17 425 (5.43%) Site Reliability Engineering
18 414 (5.29%) Cybersecurity
18 414 (5.29%) OO
Programming Languages
1 2,569 (32.83%) Python
2 1,616 (20.65%) SQL
3 1,491 (19.05%) Java
4 1,156 (14.77%) JavaScript
5 1,132 (14.47%) Bash Shell
6 868 (11.09%) C++
7 829 (10.59%) PowerShell
8 759 (9.70%) PHP
9 577 (7.37%) C
10 539 (6.89%) C#
11 486 (6.21%) Go
12 384 (4.91%) Perl
13 375 (4.79%) Ruby
14 366 (4.68%) Shell Script
15 166 (2.12%) TypeScript
16 106 (1.35%) Groovy
17 100 (1.28%) Scala
18 90 (1.15%) PL/SQL
19 88 (1.12%) Java 8
20 86 (1.10%) T-SQL
Qualifications
1 891 (11.39%) Degree
2 698 (8.92%) Security Cleared
3 503 (6.43%) SC Cleared
4 281 (3.59%) Computer Science Degree
5 238 (3.04%) Cisco Certification
6 181 (2.31%) Linux+ Certification
7 180 (2.30%) Network+ Certification
8 170 (2.17%) CCNA
9 159 (2.03%) AWS Certification
10 154 (1.97%) Microsoft Certification
11 125 (1.60%) CompTIA Security+
12 124 (1.58%) DV Cleared
13 102 (1.30%) A+ Certification
13 102 (1.30%) Server+ Certification
14 87 (1.11%) MCSE
15 82 (1.05%) CCNP
16 73 (0.93%) CISSP
17 71 (0.91%) RHCE
18 58 (0.74%) MCSA
19 46 (0.59%) GIAC
Quality Assurance & Compliance
1 340 (4.35%) QA
2 132 (1.69%) SLA
3 117 (1.50%) ISO/IEC 27001
4 81 (1.04%) PCI DSS
5 65 (0.83%) GDPR
6 51 (0.65%) NIST
7 34 (0.43%) Cyber Essentials
8 24 (0.31%) 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 (0.12%) PSD2
System Software
1 2,163 (27.64%) Docker
2 781 (9.98%) VMware Infrastructure
3 683 (8.73%) Active Directory
4 306 (3.91%) Hyper-V
5 192 (2.45%) VMware ESXi
6 136 (1.74%) vSphere
7 128 (1.64%) Firmware
8 125 (1.60%) Virtual Machines
9 86 (1.10%) KVM
10 54 (0.69%) Virtual Servers
11 46 (0.59%) 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 (0.31%) Postfix
19 23 (0.29%) Kamailio
20 22 (0.28%) Microsoft Virtual Server
Systems Management
1 1,712 (21.88%) Kubernetes
2 1,680 (21.47%) Terraform
3 1,506 (19.25%) Ansible
4 1,087 (13.89%) Puppet
5 628 (8.03%) Opscode Chef
6 242 (3.09%) Prometheus
7 178 (2.27%) Grafana
8 141 (1.80%) Nagios
9 121 (1.55%) ZABBIX
10 111 (1.42%) SCCM
11 93 (1.19%) Istio
12 83 (1.06%) Graphite
13 79 (1.01%) Packer
14 71 (0.91%) Consul
15 61 (0.78%) SCOM
16 58 (0.74%) HAProxy
17 55 (0.70%) Rancher
18 52 (0.66%) Salt
18 52 (0.66%) Single Sign-On
19 49 (0.63%) Microsoft Intune
Vendors
1 1,197 (15.30%) Microsoft
2 1,087 (13.89%) VMware
3 734 (9.38%) Red Hat
4 621 (7.94%) Oracle
5 468 (5.98%) Cisco
6 431 (5.51%) Google
7 187 (2.39%) Splunk
8 162 (2.07%) Atlassian
9 161 (2.06%) SAP
10 160 (2.04%) Citrix
11 144 (1.84%) IBM
12 140 (1.79%) HP
13 119 (1.52%) EMC
14 109 (1.39%) Veeam
15 92 (1.18%) Juniper
16 81 (1.04%) Dell
17 80 (1.02%) SaltStack
18 79 (1.01%) Zend
19 73 (0.93%) ServiceNow
20 63 (0.81%) F5