Period
to 23 January 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 23 January 2019 with a comparison to the same period in the previous 2 years.

Linux
East of England > Hertfordshire
6 months to
23 Jan 2019
Same period 2018 Same period 2017
Rank 21 16 17
Rank change year-on-year -5 +1 +4
Permanent jobs citing Linux 351 553 513
As % of all permanent IT jobs advertised in Hertfordshire 9.87% 12.12% 11.62%
As % of the Operating Systems category 35.53% 42.57% 49.19%
Number of salaries quoted 256 429 437
Hertfordshire median annual salary £60,000 £57,500 £50,000
Median salary % change year-on-year +4.35% +15.00% +11.11%
10th Percentile £30,750 £31,250 £30,000
90th Percentile £78,750 £75,250 £68,750
East of England median annual salary £52,500 £50,000 £45,000
% change year-on-year +5.00% +11.11% -

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 988 1,299 1,043
As % of all permanent IT jobs advertised in Hertfordshire 27.78% 28.47% 23.63%
Number of salaries quoted 759 1,072 845
Hertfordshire median annual salary £42,500 £45,000 £45,000
Median salary % change year-on-year -5.56% - +5.88%
10th Percentile £25,000 £23,000 £23,587
90th Percentile £71,800 £71,250 £67,500
East of England median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% +6.25%

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 23 January 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 23 January 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
Hatfield +4 107 £62,500 +8.70% 11
Watford -5 84 £55,000 -8.33% 10
Welwyn Garden City -22 27 £72,000 +41.18% 1
Stevenage +7 21 £37,500 +63.04% 14
Hemel Hempstead +3 17 £47,500 +11.76% 4
St Albans +3 10 £47,500 +21.79% 7
Hertford +2 9 £26,000 -38.82%
Waltham Cross - 6 £55,000 -
Rickmansworth +1 5 £50,000 -4.76% 1
Potters Bar - 4 £42,500 -
Borehamwood +8 3 £51,000 +8.51% 4
Letchworth +5 2 £21,000 -50.59% 1
Royston 0 1 £50,000 +37.93% 2
Hitchin -4 1 £55,000 +13.40% 1
Linux
East of England

For the 6 months to 23 January 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.

1 148 (42.17%) Windows
2 143 (40.74%) Python
3 130 (37.04%) Amazon AWS
4 108 (30.77%) DevOps
5 106 (30.20%) Unix
6 100 (28.49%) VMware
7 88 (25.07%) Agile Software Development
7 88 (25.07%) DNS
8 85 (24.22%) Microsoft
9 77 (21.94%) Java
10 74 (21.08%) TCP/IP
10 74 (21.08%) Docker
11 72 (20.51%) Firewall
12 69 (19.66%) DHCP
13 67 (19.09%) Degree
14 66 (18.80%) Microsoft Azure
15 62 (17.66%) Bash Shell
15 62 (17.66%) Web Services
15 62 (17.66%) Windows Server
16 59 (16.81%) Problem-Solving
17 55 (15.67%) Oracle
18 53 (15.10%) Active Directory
18 53 (15.10%) VMware Infrastructure
19 51 (14.53%) SQL
19 51 (14.53%) Analytical Skills
20 50 (14.25%) Puppet
21 48 (13.68%) Kubernetes
22 44 (12.54%) ITIL
22 44 (12.54%) VPN
23 43 (12.25%) Internet

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 36 (10.26%) OpenStack
2 26 (7.41%) Apache
2 26 (7.41%) WebSphere
3 22 (6.27%) Tomcat
4 20 (5.70%) JBoss
5 18 (5.13%) GlassFish
6 17 (4.84%) SharePoint
7 16 (4.56%) Elasticsearch
8 13 (3.70%) MQSeries
8 13 (3.70%) Oracle SOA Suite
8 13 (3.70%) Skype for Business
8 13 (3.70%) WebLogic
9 12 (3.42%) IIS
10 10 (2.85%) MS Exchange
11 8 (2.28%) Confluence
12 5 (1.42%) nginx
13 3 (0.85%) Jetty
14 2 (0.57%) Exchange Server 2010
14 2 (0.57%) Exchange Server 2013
15 1 (0.28%) SharePoint Server
Applications
1 5 (1.42%) HipChat
2 3 (0.85%) Microsoft Office
3 2 (0.57%) Microsoft Excel
3 2 (0.57%) MS Visio
Business Applications
1 8 (2.28%) Salesforce.com CRM
2 3 (0.85%) Payment Gateway
3 2 (0.57%) Magento
4 1 (0.28%) Oracle BPM
4 1 (0.28%) Oracle EBS
4 1 (0.28%) Remedy ITSM
Cloud Services
1 130 (37.04%) Amazon AWS
2 66 (18.80%) Microsoft Azure
3 40 (11.40%) Google Cloud Platform
4 37 (10.54%) Office 365
5 36 (10.26%) SaaS
6 22 (6.27%) AWS CloudFormation
7 17 (4.84%) Cloud Computing
8 16 (4.56%) IaaS
9 14 (3.99%) GitHub
10 13 (3.70%) PaaS
11 11 (3.13%) Amazon EC2
12 9 (2.56%) Amazon CloudWatch
12 9 (2.56%) Amazon Glacier
12 9 (2.56%) Amazon S3
12 9 (2.56%) Amazon SQS
12 9 (2.56%) AWS CloudTrail
12 9 (2.56%) Virtual Private Cloud
13 7 (1.99%) Mimecast
14 6 (1.71%) OpenShift
15 3 (0.85%) Stackdriver
Communications & Networking
1 88 (25.07%) DNS
2 74 (21.08%) TCP/IP
3 72 (20.51%) Firewall
4 69 (19.66%) DHCP
5 44 (12.54%) VPN
6 43 (12.25%) Internet
7 26 (7.41%) HTTP
8 24 (6.84%) SNMP
9 23 (6.55%) VoIP
10 21 (5.98%) LAN
10 21 (5.98%) WAN
11 16 (4.56%) ICMP
11 16 (4.56%) SAN
12 15 (4.27%) Wireless
13 14 (3.99%) Reverse Proxy
14 13 (3.70%) PBX
15 12 (3.42%) IPv4
16 11 (3.13%) Network Security
16 11 (3.13%) VoLTE
17 10 (2.85%) Unified Communications
Database & Business Intelligence
1 34 (9.69%) MySQL
2 28 (7.98%) SQL Server
3 18 (5.13%) MongoDB
3 18 (5.13%) PostgreSQL
3 18 (5.13%) Relational Database
4 14 (3.99%) Amazon RDS
5 11 (3.13%) Oracle Database
6 10 (2.85%) RDBMS
7 8 (2.28%) NoSQL
8 5 (1.42%) Redis
8 5 (1.42%) SQL Server 2012
8 5 (1.42%) SQL Server 2014
9 4 (1.14%) Apache Cassandra
10 3 (0.85%) Big Data
11 2 (0.57%) Data Warehouse
11 2 (0.57%) MariaDB
11 2 (0.57%) Oracle Database 10g
11 2 (0.57%) Oracle Database 11g
11 2 (0.57%) Oracle Database 12c
11 2 (0.57%) SQL Server 2008
Development Applications
1 28 (7.98%) JIRA
2 26 (7.41%) Jenkins
3 18 (5.13%) Git (software)
4 15 (4.27%) Visual Studio
5 11 (3.13%) Subversion
6 9 (2.56%) Bitbucket
6 9 (2.56%) Maven
7 7 (1.99%) Team Foundation Server
8 6 (1.71%) Eclipse
8 6 (1.71%) GDB
8 6 (1.71%) Octopus Deploy
8 6 (1.71%) Rational Team Concert
8 6 (1.71%) Valgrind
9 5 (1.42%) Metasploit
10 4 (1.14%) Checkstyle
10 4 (1.14%) Cucumber
10 4 (1.14%) Gradle
10 4 (1.14%) Hudson
10 4 (1.14%) Selenium
10 4 (1.14%) WebDriver
General
1 42 (11.97%) Retail
2 28 (7.98%) Finance
3 14 (3.99%) Telecoms
4 11 (3.13%) Advertising
5 10 (2.85%) French Language
5 10 (2.85%) German Language
5 10 (2.85%) Swedish Language
6 7 (1.99%) Games
7 3 (0.85%) Automotive
7 3 (0.85%) Back Office
8 2 (0.57%) Marketing
9 1 (0.28%) Publishing
Job Titles
1 51 (14.53%) Developer
2 42 (11.97%) DevOps Engineer
3 30 (8.55%) Senior Developer
4 26 (7.41%) Cloud Engineer
5 24 (6.84%) Linux Engineer
6 22 (6.27%) Analyst
7 21 (5.98%) Infrastructure Manager
7 21 (5.98%) Security Manager
8 18 (5.13%) 2nd Line Engineer
8 18 (5.13%) Network Engineer
8 18 (5.13%) Support Engineer
9 17 (4.84%) Architect
10 16 (4.56%) Information Manager
10 16 (4.56%) Information Security Manager
10 16 (4.56%) Infrastructure Architect
10 16 (4.56%) Security Engineer
10 16 (4.56%) Team Leader
11 14 (3.99%) Administrator
11 14 (3.99%) Java Developer
11 14 (3.99%) Systems Engineer
Libraries, Frameworks & Software Standards
1 62 (17.66%) Web Services
2 28 (7.98%) HTML
3 23 (6.55%) XML
4 22 (6.27%) ActiveMQ
5 21 (5.98%) Java EE
6 20 (5.70%) LAMP
7 16 (4.56%) .NET
7 16 (4.56%) CSS
7 16 (4.56%) Hibernate
7 16 (4.56%) Velocity
8 14 (3.99%) ASP.NET
8 14 (3.99%) ASP.NET MVC
8 14 (3.99%) JMS
9 13 (3.70%) EJB
9 13 (3.70%) EJB 3.0
9 13 (3.70%) HornetQ
9 13 (3.70%) Java SE
9 13 (3.70%) WebSphere MQ
10 11 (3.13%) Spring
11 10 (2.85%) jQuery
Miscellaneous
1 51 (14.53%) Analytical Skills
2 31 (8.83%) Data Centre
3 29 (8.26%) Management Information System
4 22 (6.27%) Self-Motivation
5 19 (5.41%) Hybrid Cloud
5 19 (5.41%) Replication
6 17 (4.84%) Enterprise Software
6 17 (4.84%) Linux Command Line
7 15 (4.27%) Security Operations Centre
8 14 (3.99%) Public Cloud
9 8 (2.28%) Data Structures
10 6 (1.71%) Cloud Native
10 6 (1.71%) Fintech
10 6 (1.71%) Greenfield Project
11 5 (1.42%) Client/Server
11 5 (1.42%) Cyber Kill Chain
11 5 (1.42%) Private Cloud
12 4 (1.14%) Algorithms
13 3 (0.85%) CMDB
13 3 (0.85%) Enterprise Storage
Operating Systems
1 148 (42.17%) Windows
2 106 (30.20%) Unix
3 62 (17.66%) Windows Server
4 32 (9.12%) Ubuntu
5 20 (5.70%) Debian
5 20 (5.70%) Windows 10
5 20 (5.70%) Windows 8
6 18 (5.13%) AIX
6 18 (5.13%) Windows 7
7 17 (4.84%) Mac OS X
7 17 (4.84%) Windows Server 2012
8 14 (3.99%) CentOS
9 13 (3.70%) Red Hat Enterprise Linux
10 10 (2.85%) Kali Linux
10 10 (2.85%) Windows Server 2008
11 3 (0.85%) CoreOS
11 3 (0.85%) Windows Server 2003
12 2 (0.57%) Android
12 2 (0.57%) Embedded Linux
12 2 (0.57%) Robot Operating System
Processes & Methodologies
1 108 (30.77%) DevOps
2 88 (25.07%) Agile Software Development
3 59 (16.81%) Problem-Solving
4 44 (12.54%) ITIL
5 43 (12.25%) SIEM
6 40 (11.40%) Information Security
7 36 (10.26%) Open Source
8 32 (9.12%) MVC
9 25 (7.12%) Disaster Recovery
10 22 (6.27%) Site Reliability Engineering
11 21 (5.98%) E-Commerce
12 20 (5.70%) Analytical Thinking
12 20 (5.70%) Mentoring
12 20 (5.70%) Migration
12 20 (5.70%) Security Architecture
12 20 (5.70%) Security Operations
13 19 (5.41%) IT Strategy
14 18 (5.13%) Patch Management
14 18 (5.13%) Project Management
14 18 (5.13%) Stakeholder Management
Programming Languages
1 143 (40.74%) Python
2 77 (21.94%) Java
3 62 (17.66%) Bash Shell
4 51 (14.53%) SQL
5 41 (11.68%) PowerShell
6 33 (9.40%) Perl
6 33 (9.40%) PHP
7 30 (8.55%) JavaScript
8 29 (8.26%) Shell Script
9 17 (4.84%) C++
10 16 (4.56%) C#
11 12 (3.42%) Ruby
12 11 (3.13%) AWK
13 10 (2.85%) C
14 9 (2.56%) VBScript
15 7 (1.99%) Java 8
16 6 (1.71%) Groovy
16 6 (1.71%) PL/SQL
17 5 (1.42%) ANSI SQL
17 5 (1.42%) Go
Qualifications
1 67 (19.09%) Degree
2 23 (6.55%) Cisco Certification
3 22 (6.27%) CISM
3 22 (6.27%) CISSP
4 21 (5.98%) SSCP
5 19 (5.41%) CCNA
6 17 (4.84%) Microsoft Certification
7 16 (4.56%) GCIA
7 16 (4.56%) GCIH
7 16 (4.56%) GSEC
8 14 (3.99%) Computer Science Degree
9 12 (3.42%) CRISC
10 11 (3.13%) CCNP
11 10 (2.85%) CEH
11 10 (2.85%) CISA
11 10 (2.85%) CompTIA Security+
12 8 (2.28%) AWS Certification
13 6 (1.71%) CCIE
13 6 (1.71%) GIAC
13 6 (1.71%) Master's Degree
Quality Assurance & Compliance
1 28 (7.98%) ISO/IEC 27001
2 26 (7.41%) PCI DSS
3 15 (4.27%) GDPR
4 14 (3.99%) ISO 22301
5 10 (2.85%) COBIT
6 9 (2.56%) SLA
7 5 (1.42%) Cyber Essentials
8 3 (0.85%) QA
9 2 (0.57%) HIPAA
System Software
1 74 (21.08%) Docker
2 53 (15.10%) Active Directory
2 53 (15.10%) VMware Infrastructure
3 35 (9.97%) Hyper-V
4 34 (9.69%) VMware ESXi
5 25 (7.12%) vSphere
6 10 (2.85%) Ceph
7 9 (2.56%) iptables
7 9 (2.56%) Samba
8 8 (2.28%) NFS
8 8 (2.28%) XenServer
9 6 (1.71%) KVM
9 6 (1.71%) VirtualBox
10 5 (1.42%) Postfix
10 5 (1.42%) VMware NSX
10 5 (1.42%) VMware Server
11 4 (1.14%) XenDesktop
12 2 (0.57%) Microsoft Virtual Server
12 2 (0.57%) Xen
12 2 (0.57%) XenApp
Systems Management
1 50 (14.25%) Puppet
2 48 (13.68%) Kubernetes
3 31 (8.83%) Opscode Chef
4 27 (7.69%) Ansible
5 15 (4.27%) vRealize
6 13 (3.70%) vRealize Orchestrator
7 12 (3.42%) Grafana
8 11 (3.13%) Terraform
9 10 (2.85%) Backup Exec
10 8 (2.28%) Docker Swarm
11 6 (1.71%) Nagios
11 6 (1.71%) vCenter Server
12 5 (1.42%) Nessus
12 5 (1.42%) Nmap
12 5 (1.42%) Prometheus
12 5 (1.42%) QRadar
12 5 (1.42%) Rancher
12 5 (1.42%) SCCM
12 5 (1.42%) SCOM
12 5 (1.42%) yum
Vendors
1 100 (28.49%) VMware
2 85 (24.22%) Microsoft
3 55 (15.67%) Oracle
4 33 (9.40%) Citrix
5 32 (9.12%) IBM
6 29 (8.26%) Cisco
7 27 (7.69%) NetApp
8 24 (6.84%) Red Hat
9 20 (5.70%) Google
9 20 (5.70%) Splunk
10 17 (4.84%) Juniper
11 16 (4.56%) LogRhythm
12 12 (3.42%) Huawei
13 10 (2.85%) Veeam
14 9 (2.56%) ConnectWise
14 9 (2.56%) Zend
15 8 (2.28%) Asigra
15 8 (2.28%) Fortinet
15 8 (2.28%) Salesforce.com
15 8 (2.28%) Sybase