Period
to 25 August 2019

The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire 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 25 August 2019 with a comparison to the same period in the previous 2 years.

Linux
East of England > Hertfordshire
6 months to
25 Aug 2019
Same period 2018 Same period 2017
Rank 21 21 25
Rank change year-on-year 0 +4 -9
Permanent jobs citing Linux 263 431 373
As % of all permanent IT jobs advertised in Hertfordshire 9.88% 10.14% 9.05%
As % of the Operating Systems category 36.63% 40.93% 36.11%
Number of salaries quoted 176 346 363
Hertfordshire median annual salary £50,000 £55,000 £47,500
Median salary % change year-on-year -9.09% +15.79% +5.56%
10th Percentile £27,500 £33,500 £31,250
90th Percentile £72,500 £77,500 £72,500
East of England median annual salary £50,000 £52,500 £47,000
% change year-on-year -4.76% +11.70% +4.44%

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 Hertfordshire with a requirement for operating system skills.

All Operating Systems
Hertfordshire
Permanent vacancies with a requirement for operating system skills 718 1,053 1,033
As % of all permanent IT jobs advertised in Hertfordshire 26.97% 24.76% 25.07%
Number of salaries quoted 538 811 880
Hertfordshire median annual salary £40,000 £45,000 £42,500
Median salary % change year-on-year -11.11% +5.88% -
10th Percentile £24,850 £25,250 £23,500
90th Percentile £67,500 £70,000 £66,250
East of England median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% -

Linux
Job Vacancy Trend in Hertfordshire

Job postings citing Linux as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for Linux in Hertfordshire

Linux
Salary Trend in Hertfordshire

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Linux in Hertfordshire.

Salary trend for Linux in Hertfordshire

Linux
Salary Histogram in Hertfordshire

The salary distribution of IT jobs citing Linux in Hertfordshire over the 6 months to 25 August 2019.

Salary histogram for Linux in Hertfordshire

Linux
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Linux within the Hertfordshire region over the 6 months to 25 August 2019. 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
Watford +13 84 £57,500 +27.78% 6
Hemel Hempstead +1 30 £45,000 +28.57% 5
Welwyn Garden City +5 25 £55,000 +29.41% 2
Harpenden - 19 - - 2
Borehamwood +18 16 £60,000 +26.32%
Hatfield -24 10 £57,500 -4.17% 3
Hertford - 6 £30,000 - 5
Cheshunt - 5 £47,500 -
Potters Bar +9 4 £39,264 -12.75% 1
Stevenage +5 4 £36,625 +4.64% 4
Bishop's Stortford +3 3 £50,000 -13.04%
Letchworth -10 3 £47,500 +91.92%
Rickmansworth +1 1 £80,000 +45.45% 1
Baldock - 1 £47,500 - 1
Berkhamsted - 1 £35,000 -
Linux
East of England

For the 6 months to 25 August 2019, 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 Hertfordshire region with a requirement for Linux.

1 116 (44.11%) Windows
2 99 (37.64%) Python
3 93 (35.36%) Puppet
4 88 (33.46%) VMware
5 82 (31.18%) DevOps
6 78 (29.66%) AWS
7 70 (26.62%) DNS
8 63 (23.95%) SaaS
9 62 (23.57%) VMware Infrastructure
10 58 (22.05%) Bash Shell
11 52 (19.77%) TCP/IP
12 51 (19.39%) Microsoft
13 49 (18.63%) Ansible
14 48 (18.25%) Cisco
14 48 (18.25%) Firewall
15 47 (17.87%) Active Directory
16 46 (17.49%) Problem-Solving
17 44 (16.73%) Opscode Chef
17 44 (16.73%) Azure
17 44 (16.73%) Degree
18 43 (16.35%) CentOS
19 42 (15.97%) ISO/IEC 27001
19 42 (15.97%) Office 365
19 42 (15.97%) MySQL
19 42 (15.97%) Agile Software Development
20 41 (15.59%) Red Hat Enterprise Linux
21 39 (14.83%) Perl
21 39 (14.83%) Java
21 39 (14.83%) Unix
22 37 (14.07%) SQL

Linux
Co-occurring IT Skills in Hertfordshire 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 21 (7.98%) Apache
2 18 (6.84%) SharePoint
3 14 (5.32%) nginx
4 6 (2.28%) Confluence
5 5 (1.90%) IIS
5 5 (1.90%) Tomcat
5 5 (1.90%) WebSphere
6 4 (1.52%) Elasticsearch
7 3 (1.14%) WebSphere Application Server
8 2 (0.76%) Exchange Server 2013
8 2 (0.76%) OpenEdge
8 2 (0.76%) OpenStack
8 2 (0.76%) Oracle Workflow
9 1 (0.38%) Exchange Server 2010
9 1 (0.38%) GlassFish
9 1 (0.38%) MQSeries
9 1 (0.38%) MS Exchange
9 1 (0.38%) Oracle SOA Suite
9 1 (0.38%) WebLogic
9 1 (0.38%) WordPress
Applications
1 24 (9.13%) Microsoft Office
2 6 (2.28%) Microsoft Excel
3 5 (1.90%) Microsoft PowerPoint
4 4 (1.52%) InfoPath
4 4 (1.52%) MS Visio
5 1 (0.38%) HipChat
Business Applications
1 7 (2.66%) Magento
2 2 (0.76%) Oracle BPM
2 2 (0.76%) Oracle ERP
3 1 (0.38%) ResourceLink
Cloud Services
1 78 (29.66%) AWS
2 63 (23.95%) SaaS
3 44 (16.73%) Azure
4 42 (15.97%) Office 365
5 28 (10.65%) GCP
6 21 (7.98%) IaaS
7 15 (5.70%) OneDrive
8 12 (4.56%) OpenShift
9 5 (1.90%) GitHub
9 5 (1.90%) Stackdriver
10 2 (0.76%) AWS CloudFormation
10 2 (0.76%) Cloud Computing
10 2 (0.76%) npm
10 2 (0.76%) PaaS
11 1 (0.38%) Akamai
11 1 (0.38%) Azure Stack
11 1 (0.38%) Cloudflare
11 1 (0.38%) Dynamics 365
11 1 (0.38%) Serverless
Communications & Networking
1 70 (26.62%) DNS
2 52 (19.77%) TCP/IP
3 48 (18.25%) Firewall
4 26 (9.89%) SNMP
5 25 (9.51%) SMTP
6 22 (8.37%) DHCP
7 19 (7.22%) Internet
8 18 (6.84%) HTTP
8 18 (6.84%) Wi-Fi
9 16 (6.08%) SAN
10 13 (4.94%) VPN
11 12 (4.56%) 2.5G
11 12 (4.56%) 2G
11 12 (4.56%) 3G
11 12 (4.56%) 4G
11 12 (4.56%) 5G
11 12 (4.56%) Cisco Nexus
12 11 (4.18%) BIG-IP
12 11 (4.18%) FabricPath
12 11 (4.18%) VLAN
Database & Business Intelligence
1 42 (15.97%) MySQL
2 32 (12.17%) SQL Server
3 15 (5.70%) MariaDB
3 15 (5.70%) PostgreSQL
4 13 (4.94%) MongoDB
5 8 (3.04%) Oracle Database
6 6 (2.28%) Data Warehouse
7 5 (1.90%) Apache Cassandra
7 5 (1.90%) Relational Database
8 4 (1.52%) BigQuery
8 4 (1.52%) MS Access
8 4 (1.52%) Oracle Database 11g
9 3 (1.14%) SQL Server Reporting Services
10 2 (0.76%) BusinessObjects
10 2 (0.76%) Crystal Reports
10 2 (0.76%) Data Mining
10 2 (0.76%) NoSQL
11 1 (0.38%) Amazon RDS
11 1 (0.38%) Big Data
11 1 (0.38%) FileMaker
Development Applications
1 33 (12.55%) Git (software)
2 31 (11.79%) Sonatype Nexus
3 28 (10.65%) Jenkins
4 21 (7.98%) JIRA
5 20 (7.60%) Artifactory
6 13 (4.94%) Visual Studio Team System
7 11 (4.18%) Octopus Deploy
8 7 (2.66%) GitLab
9 3 (1.14%) Qt Creator
9 3 (1.14%) Robot Framework
9 3 (1.14%) Selenium
9 3 (1.14%) TeamCity
10 2 (0.76%) Apache Archiva
10 2 (0.76%) Cucumber
10 2 (0.76%) JUnit
10 2 (0.76%) SonarQube
10 2 (0.76%) Subversion
10 2 (0.76%) WebDriver
11 1 (0.38%) gulp
11 1 (0.38%) webpack
General
1 21 (7.98%) Retail
2 18 (6.84%) Finance
3 7 (2.66%) Telecoms
4 6 (2.28%) Public Sector
5 4 (1.52%) Aerospace
5 4 (1.52%) Banking
5 4 (1.52%) Billing
6 2 (0.76%) Legal
7 1 (0.38%) Automotive
7 1 (0.38%) Games
7 1 (0.38%) Marketing
7 1 (0.38%) Publishing
Job Titles
1 44 (16.73%) Linux Engineer
2 39 (14.83%) DevOps Engineer
3 33 (12.55%) Security Engineer
4 32 (12.17%) Developer
5 24 (9.13%) Systems Engineer
6 22 (8.37%) Linux DevOps Engineer
6 22 (8.37%) Linux/Unix DevOps
7 19 (7.22%) Analyst
8 18 (6.84%) Cloud Engineer
8 18 (6.84%) IT Support
8 18 (6.84%) Linux Systems Engineer
9 16 (6.08%) Help Desk Support
9 16 (6.08%) Help Desk Support Technician
9 16 (6.08%) Help Desk Technician
9 16 (6.08%) IT Support Technician
9 16 (6.08%) IT Technician
9 16 (6.08%) Service Desk Support
9 16 (6.08%) Service Desk Technician
9 16 (6.08%) Support Technician
10 14 (5.32%) Technical Leader
Libraries, Frameworks & Software Standards
1 19 (7.22%) HTML
2 17 (6.46%) LAMP
3 14 (5.32%) CSS
4 13 (4.94%) Elastic Stack
4 13 (4.94%) LDAP
5 12 (4.56%) Web Services
6 11 (4.18%) Middleware
7 9 (3.42%) XML
8 7 (2.66%) AngularJS
8 7 (2.66%) jQuery
9 6 (2.28%) CSS3
9 6 (2.28%) HTML5
9 6 (2.28%) Laravel
9 6 (2.28%) React
10 5 (1.90%) LEMP Stack
11 4 (1.52%) .NET
11 4 (1.52%) Velocity
11 4 (1.52%) Zend Framework
12 3 (1.14%) Node.js
12 3 (1.14%) REST
Miscellaneous
1 26 (9.89%) Analytical Skills
1 26 (9.89%) Replication
2 13 (4.94%) Hybrid Cloud
3 9 (3.42%) CCTV
3 9 (3.42%) Enterprise Cloud
3 9 (3.42%) Private Cloud
4 8 (3.04%) Management Information System
5 7 (2.66%) Self-Motivation
6 6 (2.28%) Distributed Denial-of-Service
6 6 (2.28%) Public Cloud
6 6 (2.28%) Virtual Team
7 4 (1.52%) Enterprise Software
7 4 (1.52%) Mobile App
8 3 (1.14%) Data Centre
8 3 (1.14%) Linux Command Line
8 3 (1.14%) PKI
9 2 (0.76%) Greenfield Project
9 2 (0.76%) NHS
9 2 (0.76%) PACS
10 1 (0.38%) AS400
Operating Systems
1 116 (44.11%) Windows
2 43 (16.35%) CentOS
3 41 (15.59%) Red Hat Enterprise Linux
4 39 (14.83%) Unix
5 35 (13.31%) Windows Server
6 33 (12.55%) Ubuntu
7 28 (10.65%) Windows 7
8 27 (10.27%) Windows 10
9 26 (9.89%) Windows Server 2012
10 21 (7.98%) Debian
11 12 (4.56%) AIX
11 12 (4.56%) SUSE
12 9 (3.42%) Windows 8
13 5 (1.90%) Android
13 5 (1.90%) Solaris
14 3 (1.14%) Windows Server 2008
15 2 (0.76%) Apple iOS
16 1 (0.38%) Kali Linux
16 1 (0.38%) Mac OS
16 1 (0.38%) Mac OS X
Processes & Methodologies
1 82 (31.18%) DevOps
2 46 (17.49%) Problem-Solving
3 42 (15.97%) Agile Software Development
4 36 (13.69%) ITIL
5 35 (13.31%) Penetration Testing
6 32 (12.17%) SIEM
7 31 (11.79%) Software Engineering
8 29 (11.03%) Computer Science
9 26 (9.89%) Information Security
10 25 (9.51%) Infrastructure Engineering
11 24 (9.13%) Configuration Management
11 24 (9.13%) Continuous Integration
12 23 (8.75%) Cybersecurity
12 23 (8.75%) Vulnerability Scanning
13 22 (8.37%) Secure Coding
14 21 (7.98%) Migration
15 19 (7.22%) Records Management
16 18 (6.84%) Infrastructure as Code
16 18 (6.84%) Performance Tuning
16 18 (6.84%) Test Automation
Programming Languages
1 99 (37.64%) Python
2 58 (22.05%) Bash Shell
3 39 (14.83%) Java
3 39 (14.83%) Perl
4 37 (14.07%) SQL
5 35 (13.31%) PowerShell
6 32 (12.17%) Ruby
7 31 (11.79%) Shell Script
8 30 (11.41%) JavaScript
9 22 (8.37%) PHP
10 13 (4.94%) C
11 7 (2.66%) C++
12 6 (2.28%) TypeScript
13 5 (1.90%) Go
14 4 (1.52%) VBA
15 3 (1.14%) PL/SQL
15 3 (1.14%) T-SQL
15 3 (1.14%) VB
16 2 (0.76%) ActionScript
16 2 (0.76%) Ada
Qualifications
1 44 (16.73%) Degree
2 32 (12.17%) Computer Science Degree
3 29 (11.03%) Security Cleared
4 24 (9.13%) CISSP
5 23 (8.75%) Cisco Certification
6 21 (7.98%) CEH
6 21 (7.98%) SC Cleared
7 19 (7.22%) RHCE
8 15 (5.70%) CCNP
8 15 (5.70%) LPIC
9 13 (4.94%) RHCT
10 7 (2.66%) CCNA
11 4 (1.52%) Master's Degree
12 3 (1.14%) (ISC)2 CCSP
12 3 (1.14%) CCIE
12 3 (1.14%) CCSP
12 3 (1.14%) JNCIP
13 2 (0.76%) OCA
13 2 (0.76%) Oracle Certification
13 2 (0.76%) Postgraduate
Quality Assurance & Compliance
1 42 (15.97%) ISO/IEC 27001
2 24 (9.13%) PCI DSS
3 15 (5.70%) COBIT
4 7 (2.66%) QA
4 7 (2.66%) SLA
5 6 (2.28%) HIPAA
6 3 (1.14%) GDPR
7 2 (0.76%) Data Quality
8 1 (0.38%) ISO/IEC 20000
System Software
1 62 (23.57%) VMware Infrastructure
2 47 (17.87%) Active Directory
3 33 (12.55%) Hyper-V
4 27 (10.27%) Docker
5 21 (7.98%) vSphere
6 16 (6.08%) Virtual Machines
7 14 (5.32%) VMware ESXi
7 14 (5.32%) VMware NSX
8 11 (4.18%) KVM
9 10 (3.80%) iptables
9 10 (3.80%) NFS
9 10 (3.80%) Postfix
9 10 (3.80%) Samba
9 10 (3.80%) VMware Server
10 2 (0.76%) Virtual Servers
10 2 (0.76%) XenApp
11 1 (0.38%) LXC
11 1 (0.38%) Microsoft App-V
11 1 (0.38%) XenDesktop
Systems Management
1 93 (35.36%) Puppet
2 49 (18.63%) Ansible
3 44 (16.73%) Opscode Chef
4 29 (11.03%) Kubernetes
5 20 (7.60%) SCCM
5 20 (7.60%) SCOM
6 19 (7.22%) Terraform
7 14 (5.32%) Nagios
8 13 (4.94%) Docker Swarm
9 12 (4.56%) SCOrch
9 12 (4.56%) vRealize
10 10 (3.80%) Kibana
11 9 (3.42%) logstash
12 5 (1.90%) HAProxy
12 5 (1.90%) Munin
12 5 (1.90%) Oracle Enterprise Manager
12 5 (1.90%) WSUS
13 4 (1.52%) ZABBIX
14 3 (1.14%) Nessus
14 3 (1.14%) NetBackup
Vendors
1 88 (33.46%) VMware
2 51 (19.39%) Microsoft
3 48 (18.25%) Cisco
4 33 (12.55%) Red Hat
5 21 (7.98%) Google
6 20 (7.60%) Oracle
7 19 (7.22%) Qualys
8 15 (5.70%) Veracode
9 13 (4.94%) F5
10 12 (4.56%) Dell
10 12 (4.56%) HP
11 11 (4.18%) Intel
12 10 (3.80%) Citrix
12 10 (3.80%) Percona
13 9 (3.42%) New Relic
14 7 (2.66%) NetApp
14 7 (2.66%) Symantec
15 6 (2.28%) SolarWinds
16 5 (1.90%) Splunk
16 5 (1.90%) Zend