Job Vacancy Trend Salary Trend Salary Histogram Skill Sets
Period
to 20 April 2021

The table below provides summary statistics for permanent job vacancies with an option to work from home (WFH) and 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 20 April 2021 with a comparison to the same period in the previous 2 years.

Linux
UK > Work from Home
6 months to
20 Apr 2021		 Same period 2020 Same period 2019
Rank 19 26 22
Rank change year-on-year +7 -4 +8
Permanent jobs citing Linux 1,652 611 834
As % of all permanent jobs with a WFH option 10.22% 8.73% 10.48%
As % of the Operating Systems category 49.86% 44.12% 57.92%
Number of salaries quoted 1,486 540 738
10th Percentile £34,750 £36,700 £37,200
25th Percentile £38,750 £43,750 £45,000
Median annual salary (50th Percentile) £55,000 £55,000 £62,500
Median % change year-on-year - -12.00% +25.00%
75th Percentile £72,500 £72,500 £72,500
90th Percentile £85,625 £80,000 £87,500
UK median annual salary £55,000 £54,250 £52,500
% change year-on-year +1.38% +3.33% +3.96%

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 WFH option and a requirement for operating system skills.

All Operating Systems
Work from Home
Permanent vacancies with a requirement for operating system skills 3,313 1,385 1,440
As % of all permanent jobs with a WFH option 20.51% 19.78% 18.09%
Number of salaries quoted 2,983 1,209 1,263
10th Percentile £32,500 £34,750 £32,000
25th Percentile £38,750 £42,500 £41,625
Median annual salary (50th Percentile) £52,500 £57,500 £60,000
Median % change year-on-year -8.70% -4.17% +20.00%
75th Percentile £68,750 £72,500 £72,500
90th Percentile £82,500 £78,750 £85,000
UK median annual salary £50,000 £47,500 £47,500
% change year-on-year +5.26% - +5.56%

Linux
Trend for Jobs with a WFH Option

Job vacancies with a work from home option citing Linux as a proportion of all IT jobs advertised.

Linux trend for jobs with a WFH option

Linux
Salary Trend for Jobs with a WFH Option

3-month moving average salary quoted in job vacancies with a work from home option citing Linux.

Linux salary trend for jobs with a WFH option

Linux
Salary Histogram for Jobs with a WFH Option

Salary distribution for jobs with a work from home option citing Linux over the 6 months to 20 April 2021.

Linux salary histogram for jobs with a WFH option

For the 6 months to 20 April 2021, Linux job roles required the following IT skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent jobs with a WFH option and a requirement for Linux.

1 772 (46.73%) AWS
2 718 (43.46%) DevOps
3 562 (34.02%) Agile Software Development
4 539 (32.63%) Docker
5 513 (31.05%) Git (software)
6 448 (27.12%) Kubernetes
7 425 (25.73%) Python
7 425 (25.73%) Azure
8 420 (25.42%) Windows
9 418 (25.30%) Terraform
10 323 (19.55%) Java
11 321 (19.43%) JavaScript
12 318 (19.25%) SQL
13 295 (17.86%) Puppet
14 282 (17.07%) Scrum
15 272 (16.46%) Software Engineering
16 258 (15.62%) Continuous Integration
17 256 (15.50%) Ansible
18 246 (14.89%) MySQL
19 241 (14.59%) Jenkins
20 236 (14.29%) Opscode Chef
21 214 (12.95%) Microsoft
22 212 (12.83%) PHP
23 204 (12.35%) Bash Shell
24 192 (11.62%) VMware
25 191 (11.56%) Microservices
26 190 (11.50%) Unix
27 183 (11.08%) Problem-Solving
28 179 (10.84%) HTML
29 178 (10.77%) AWS CloudFormation

Linux
Co-occurring IT Skills with a WFH Option 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 94 (5.69%) Apache
2 49 (2.97%) Elasticsearch
3 48 (2.91%) nginx
4 44 (2.66%) Tomcat
5 36 (2.18%) Confluence
6 31 (1.88%) IIS
7 20 (1.21%) CMS
8 19 (1.15%) WordPress
9 18 (1.09%) JBoss
10 17 (1.03%) Apache Spark
11 14 (0.85%) Apache Airflow
11 14 (0.85%) Apache Solr
11 14 (0.85%) Mule
11 14 (0.85%) Mule ESB
11 14 (0.85%) Red Hat Fuse
12 10 (0.61%) OpenStack
13 9 (0.54%) SharePoint
14 8 (0.48%) MS Exchange
14 8 (0.48%) WebSphere
15 7 (0.42%) CloudStack
Applications
1 31 (1.88%) Microsoft Office
2 8 (0.48%) Microsoft Excel
3 5 (0.30%) Microsoft PowerPoint
4 4 (0.24%) MS Visio
5 3 (0.18%) Adobe XD
5 3 (0.18%) Photoshop
6 2 (0.12%) Microsoft Project
7 1 (0.061%) Quicktime
Business Applications
1 14 (0.85%) Sentinel
2 11 (0.67%) Magento
3 8 (0.48%) Workfront
4 6 (0.36%) R3 Corda
5 3 (0.18%) Oracle Applications
5 3 (0.18%) Oracle EBS
6 1 (0.061%) Oracle 11i
6 1 (0.061%) Oracle EBS R12
6 1 (0.061%) Payment Gateway
6 1 (0.061%) Remedy ITSM
Cloud Services
1 772 (46.73%) AWS
2 425 (25.73%) Azure
3 178 (10.77%) AWS CloudFormation
4 146 (8.84%) GCP
5 99 (5.99%) GitHub
6 96 (5.81%) Amazon EC2
7 71 (4.30%) SaaS
8 59 (3.57%) Serverless
9 55 (3.33%) Amazon S3
10 52 (3.15%) PaaS
11 42 (2.54%) AWS Lambda
12 41 (2.48%) IaaS
13 40 (2.42%) Amazon ECS
14 38 (2.30%) Amazon EKS
15 37 (2.24%) Microsoft 365
16 36 (2.18%) Amazon CloudWatch
17 32 (1.94%) Virtual Private Cloud
18 29 (1.76%) Cloud Computing
19 28 (1.69%) CloudFront
20 25 (1.51%) Route 53
Communications & Networking
1 125 (7.57%) Firewall
2 87 (5.27%) TCP/IP
3 64 (3.87%) LAN
4 62 (3.75%) DNS
5 60 (3.63%) WAN
6 53 (3.21%) VPN
7 42 (2.54%) Internet
8 38 (2.30%) HTTP
8 38 (2.30%) SAN
9 35 (2.12%) Network Security
10 33 (2.00%) DHCP
11 28 (1.69%) Wireless
12 26 (1.57%) Intrusion Detection
13 25 (1.51%) SSH
14 24 (1.45%) Wi-Fi
15 23 (1.39%) SSL
16 19 (1.15%) VLAN
17 17 (1.03%) Bluetooth
18 16 (0.97%) ZigBee
19 15 (0.91%) OpenVPN
Database & Business Intelligence
1 246 (14.89%) MySQL
2 167 (10.11%) SQL Server
3 123 (7.45%) NoSQL
4 115 (6.96%) MongoDB
5 96 (5.81%) PostgreSQL
6 80 (4.84%) Relational Database
7 60 (3.63%) Amazon RDS
8 41 (2.48%) Redis
9 40 (2.42%) RDBMS
10 35 (2.12%) Amazon DynamoDB
11 33 (2.00%) Oracle Database
12 32 (1.94%) Blockchain
13 31 (1.88%) Big Data
14 24 (1.45%) MariaDB
15 20 (1.21%) Data Warehouse
16 15 (0.91%) Hadoop
17 13 (0.79%) Data Mining
18 12 (0.73%) Apache Cassandra
18 12 (0.73%) BigQuery
19 11 (0.67%) Amazon Redshift
Development Applications
1 513 (31.05%) Git (software)
2 241 (14.59%) Jenkins
3 127 (7.69%) GitLab
4 114 (6.90%) JIRA
5 101 (6.11%) Maven
6 71 (4.30%) TeamCity
7 68 (4.12%) JUnit
8 46 (2.78%) Bitbucket
9 44 (2.66%) Octopus Deploy
10 32 (1.94%) Artifactory
11 25 (1.51%) Subversion
12 20 (1.21%) Gradle
13 18 (1.09%) IntelliJ
14 15 (0.91%) Atlassian Bamboo
15 11 (0.67%) Visual Studio
15 11 (0.67%) webpack
16 10 (0.61%) Gerrit
16 10 (0.61%) gulp
16 10 (0.61%) Travis CI
17 9 (0.54%) Mercurial
General
1 151 (9.14%) Finance
2 75 (4.54%) Marketing
3 74 (4.48%) Electronics
4 72 (4.36%) Retail
5 70 (4.24%) Games
6 63 (3.81%) Public Sector
7 48 (2.91%) Telecoms
8 39 (2.36%) Banking
9 23 (1.39%) Law
10 20 (1.21%) Manufacturing
11 16 (0.97%) Automotive
11 16 (0.97%) Front Office
12 10 (0.61%) Advertising
12 10 (0.61%) Back Office
12 10 (0.61%) German Language
13 7 (0.42%) International Banking
13 7 (0.42%) Legal
14 6 (0.36%) Pharmaceutical
15 5 (0.30%) Billing
15 5 (0.30%) Publishing
Job Titles
1 483 (29.24%) DevOps Engineer
2 432 (26.15%) Developer
3 208 (12.59%) AWS Engineer
4 182 (11.02%) AWS DevOps
5 178 (10.77%) AWS DevOps Engineer
6 121 (7.32%) PHP Developer
7 118 (7.14%) Linux Engineer
8 111 (6.72%) Software Engineer
9 103 (6.23%) Java Developer
10 98 (5.93%) Senior DevOps
11 94 (5.69%) Senior Developer
11 94 (5.69%) Senior DevOps Engineer
12 83 (5.02%) Software Developer
13 66 (4.00%) Cloud Engineer
14 58 (3.51%) Site Reliability Engineer
15 57 (3.45%) Infrastructure Engineer
16 53 (3.21%) Architect
17 50 (3.03%) Administrator
18 49 (2.97%) Full Stack Developer
19 48 (2.91%) Consultant
Libraries, Frameworks & Software Standards
1 179 (10.84%) HTML
2 173 (10.47%) Node.js
3 146 (8.84%) CSS
4 138 (8.35%) React
5 133 (8.05%) REST
6 116 (7.02%) Spring
7 110 (6.66%) Web Services
8 107 (6.48%) AngularJS
9 100 (6.05%) RESTful
10 90 (5.45%) Kafka
11 89 (5.39%) Spring Boot
12 78 (4.72%) jQuery
13 68 (4.12%) Symfony
14 62 (3.75%) LAMP
15 54 (3.27%) .NET
15 54 (3.27%) Laravel
16 53 (3.21%) JSON
17 47 (2.85%) HTML5
18 41 (2.48%) SOAP
19 37 (2.24%) Ruby on Rails
Miscellaneous
1 92 (5.57%) Hybrid Cloud
2 71 (4.30%) Self-Motivation
3 70 (4.24%) Analytical Skills
4 69 (4.18%) Greenfield Project
5 62 (3.75%) Data Centre
6 61 (3.69%) Linux Command Line
7 55 (3.33%) Public Cloud
8 37 (2.24%) iPad
9 35 (2.12%) Virtual Team
10 32 (1.94%) User Experience
11 29 (1.76%) PKI
12 24 (1.45%) Management Information System
13 23 (1.39%) NHS
13 23 (1.39%) Organisational Skills
14 22 (1.33%) Embedded Systems
15 20 (1.21%) Cloud Native
16 19 (1.15%) Private Cloud
17 18 (1.09%) Distributed Denial-of-Service
17 18 (1.09%) Internet of Things
17 18 (1.09%) Replication
Operating Systems
1 420 (25.42%) Windows
2 190 (11.50%) Unix
3 129 (7.81%) Windows Server
4 104 (6.30%) Red Hat Enterprise Linux
5 97 (5.87%) CentOS
6 70 (4.24%) Ubuntu
7 47 (2.85%) Embedded Linux
8 46 (2.78%) Android
9 29 (1.76%) Debian
10 25 (1.51%) Mac OS
11 16 (0.97%) SUSE
12 14 (0.85%) AIX
13 10 (0.61%) Apple iOS
13 10 (0.61%) Solaris
13 10 (0.61%) Windows Server 2016
14 9 (0.54%) Robot Operating System
14 9 (0.54%) Windows 10
15 8 (0.48%) Windows Server 2019
16 7 (0.42%) Fedora
16 7 (0.42%) Windows Server 2012
Processes & Methodologies
1 718 (43.46%) DevOps
2 562 (34.02%) Agile Software Development
3 282 (17.07%) Scrum
4 272 (16.46%) Software Engineering
5 258 (15.62%) Continuous Integration
6 191 (11.56%) Microservices
7 183 (11.08%) Problem-Solving
8 174 (10.53%) Migration
9 153 (9.26%) Infrastructure as Code
10 151 (9.14%) Deployment Automation
11 135 (8.17%) OOP
12 133 (8.05%) Configuration Management
13 126 (7.63%) TDD
14 118 (7.14%) Computer Science
15 113 (6.84%) E-Commerce
16 101 (6.11%) OO
17 100 (6.05%) Continuous Delivery
18 98 (5.93%) MVC
19 85 (5.15%) Mentoring
20 83 (5.02%) Decision-Making
Programming Languages
1 425 (25.73%) Python
2 323 (19.55%) Java
3 321 (19.43%) JavaScript
4 318 (19.25%) SQL
5 212 (12.83%) PHP
6 204 (12.35%) Bash Shell
7 141 (8.54%) C++
8 128 (7.75%) Go
9 118 (7.14%) C#
10 110 (6.66%) PowerShell
11 104 (6.30%) C
12 81 (4.90%) Shell Script
13 77 (4.66%) Ruby
14 47 (2.85%) TypeScript
15 39 (2.36%) Kotlin
16 38 (2.30%) Perl
17 27 (1.63%) Embedded C++
17 27 (1.63%) Groovy
18 25 (1.51%) Scala
19 23 (1.39%) PHP 7
Qualifications
1 167 (10.11%) Degree
2 119 (7.20%) Security Cleared
3 114 (6.90%) SC Cleared
4 72 (4.36%) Computer Science Degree
5 29 (1.76%) AWS Certification
6 25 (1.51%) CISSP
7 24 (1.45%) Microsoft Certification
8 20 (1.21%) Cisco Certification
9 15 (0.91%) MCSE
10 14 (0.85%) CEH
10 14 (0.85%) CISM
11 11 (0.67%) CCNA
12 10 (0.61%) CCNP
12 10 (0.61%) MCSA
13 8 (0.48%) BPSS Clearance
13 8 (0.48%) OSCE
14 7 (0.42%) CEPT
14 7 (0.42%) EC-Council LPT
14 7 (0.42%) GXPN
14 7 (0.42%) SANS
Quality Assurance & Compliance
1 46 (2.78%) QA
2 21 (1.27%) ISO/IEC 27001
3 15 (0.91%) SLA
4 13 (0.79%) GDPR
4 13 (0.79%) PCI DSS
5 10 (0.61%) Cyber Essentials
5 10 (0.61%) NIST
6 8 (0.48%) Cyber Essentials PLUS
7 6 (0.36%) OpenSCAP
8 3 (0.18%) WCAG
9 2 (0.12%) COBIT
9 2 (0.12%) IEC 61131
9 2 (0.12%) NIST 800
9 2 (0.12%) SOC 2
10 1 (0.061%) HMG Security Policy Framework
10 1 (0.061%) ISO/IEC 27005
10 1 (0.061%) MISRA
10 1 (0.061%) MISRA C
10 1 (0.061%) NCSC
10 1 (0.061%) SOC 1
System Software
1 539 (32.63%) Docker
2 152 (9.20%) VMware Infrastructure
3 79 (4.78%) Active Directory
4 49 (2.97%) Hyper-V
5 34 (2.06%) Firmware
6 25 (1.51%) Virtual Machines
7 17 (1.03%) vSphere
8 13 (0.79%) VMware ESXi
9 11 (0.67%) iptables
10 10 (0.61%) Xen
11 9 (0.54%) KVM
11 9 (0.54%) Oracle RAC
12 8 (0.48%) Shibboleth
13 7 (0.42%) Microsoft Virtual Server
13 7 (0.42%) Virtual Servers
14 6 (0.36%) StorNext
14 6 (0.36%) Xsan
15 5 (0.30%) Gluster
15 5 (0.30%) Postfix
15 5 (0.30%) Virtual Desktop
Systems Management
1 448 (27.12%) Kubernetes
2 418 (25.30%) Terraform
3 295 (17.86%) Puppet
4 256 (15.50%) Ansible
5 236 (14.29%) Opscode Chef
6 70 (4.24%) Istio
7 52 (3.15%) Prometheus
8 41 (2.48%) Grafana
9 39 (2.36%) ZABBIX
10 32 (1.94%) Rancher
11 26 (1.57%) Nagios
12 23 (1.39%) Graphite
13 20 (1.21%) HAProxy
14 16 (0.97%) Red Hat Satellite
15 14 (0.85%) Icinga
16 13 (0.79%) Salt
17 11 (0.67%) SCOM
18 10 (0.61%) NetBackup
19 9 (0.54%) Oracle RMAN
19 9 (0.54%) SCCM
Vendors
1 214 (12.95%) Microsoft
2 192 (11.62%) VMware
3 132 (7.99%) Oracle
4 120 (7.26%) Red Hat
5 101 (6.11%) Google
6 56 (3.39%) Zend
7 50 (3.03%) Cisco
8 41 (2.48%) Splunk
9 39 (2.36%) Atlassian
10 32 (1.94%) SAP
11 26 (1.57%) HP
12 24 (1.45%) EMC
13 20 (1.21%) Citrix
13 20 (1.21%) NetApp
14 18 (1.09%) IBM
15 17 (1.03%) Juniper
15 17 (1.03%) SolarWinds
16 14 (0.85%) Dell
16 14 (0.85%) ServiceNow
17 13 (0.79%) SonicWALL