Period
to 17 November 2018

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 17 November 2018 with a comparison to the same period in the previous 2 years.

Linux
East of England > Hertfordshire
6 months to
17 Nov 2018
Same period 2017 Same period 2016
Rank 22 17 16
Rank change year-on-year -5 -1 +3
Permanent jobs citing Linux 362 503 501
As % of all permanent IT jobs advertised in Hertfordshire 9.35% 11.44% 11.18%
As % of the Operating Systems category 35.35% 38.87% 47.85%
Number of salaries quoted 266 430 424
Hertfordshire median annual salary £60,000 £50,000 £50,000
Median salary % change year-on-year +20.00% - +11.11%
10th Percentile £41,125 £31,250 £28,000
90th Percentile £78,750 £72,500 £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 1,024 1,294 1,047
As % of all permanent IT jobs advertised in Hertfordshire 26.44% 29.42% 23.37%
Number of salaries quoted 753 1,088 864
Hertfordshire median annual salary £45,000 £42,500 £45,000
Median salary % change year-on-year +5.88% -5.56% +5.88%
10th Percentile £26,250 £23,500 £23,750
90th Percentile £72,500 £67,500 £67,500
East of England median annual salary £45,000 £42,500 £42,500
% change year-on-year +5.88% - +2.41%

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 17 November 2018.

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 17 November 2018. 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 +3 100 £65,000 +13.04% 8
Watford -12 82 £47,500 -2.06% 12
Welwyn Garden City -8 42 £72,000 +44.00% 3
Hemel Hempstead -14 17 £43,750 +34.62% 3
St Albans -18 11 £47,500 +21.79% 1
Stevenage +13 10 £33,000 -8.33% 12
Rickmansworth -1 10 £55,000 -8.33% 2
Waltham Cross - 6 £55,000 - 3
Broxbourne - 5 £57,500 -
Borehamwood +1 4 £51,000 +8.51%
Potters Bar - 4 £42,500 -
Letchworth +8 3 £21,000 -50.59% 1
Royston +1 2 £63,750 +59.38% 1
Bishop's Stortford 0 2 £57,500 +4.55%
Hitchin +3 1 £55,000 +17.02% 1
Linux
East of England

For the 6 months to 17 November 2018, 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.

1 156 (43.09%) Windows
2 153 (42.27%) Python
3 145 (40.06%) Unix
4 117 (32.32%) Agile Software Development
4 117 (32.32%) DevOps
5 111 (30.66%) Amazon AWS
6 107 (29.56%) Java
7 89 (24.59%) VMware
8 81 (22.38%) Docker
9 79 (21.82%) Problem-Solving
10 77 (21.27%) Oracle
10 77 (21.27%) TCP/IP
11 76 (20.99%) Degree
12 75 (20.72%) Puppet
13 74 (20.44%) Microsoft
14 72 (19.89%) ITIL
15 68 (18.78%) DNS
16 67 (18.51%) Microsoft Azure
17 60 (16.57%) Firewall
18 58 (16.02%) Web Services
18 58 (16.02%) SQL
18 58 (16.02%) SIEM
19 57 (15.75%) Windows Server
20 55 (15.19%) Kubernetes
21 53 (14.64%) DHCP
22 51 (14.09%) VMware Infrastructure
23 50 (13.81%) IBM
24 49 (13.54%) Bash Shell
24 49 (13.54%) OpenStack
24 49 (13.54%) Analytical Skills

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 49 (13.54%) OpenStack
2 43 (11.88%) Tomcat
3 39 (10.77%) WebSphere
4 27 (7.46%) GlassFish
5 24 (6.63%) JBoss
6 19 (5.25%) Apache
7 16 (4.42%) Elasticsearch
7 16 (4.42%) WebLogic
8 14 (3.87%) MQSeries
9 13 (3.59%) Oracle SOA Suite
10 12 (3.31%) IIS
10 12 (3.31%) Skype for Business
11 9 (2.49%) Confluence
11 9 (2.49%) nginx
12 6 (1.66%) MS Exchange
13 4 (1.10%) Exchange Server 2013
13 4 (1.10%) WebSphere Application Server
14 3 (0.83%) Jetty
14 3 (0.83%) SharePoint
15 2 (0.55%) Exchange Server 2010
Applications
1 5 (1.38%) HipChat
2 2 (0.55%) Microsoft Excel
2 2 (0.55%) Microsoft Office
2 2 (0.55%) MS Visio
Business Applications
1 7 (1.93%) Salesforce.com CRM
2 3 (0.83%) Payment Gateway
3 2 (0.55%) Oracle BPM
3 2 (0.55%) Oracle EBS
4 1 (0.28%) Magento
Cloud Services
1 111 (30.66%) Amazon AWS
2 67 (18.51%) Microsoft Azure
3 38 (10.50%) Google Cloud Platform
4 36 (9.94%) SaaS
5 21 (5.80%) AWS CloudFormation
6 18 (4.97%) IaaS
7 15 (4.14%) GitHub
7 15 (4.14%) PaaS
8 11 (3.04%) Cloud Computing
8 11 (3.04%) Office 365
9 8 (2.21%) Amazon EC2
10 7 (1.93%) Amazon SQS
11 6 (1.66%) Amazon CloudWatch
11 6 (1.66%) Amazon Glacier
11 6 (1.66%) Amazon S3
11 6 (1.66%) AWS CloudTrail
11 6 (1.66%) Mimecast
11 6 (1.66%) Virtual Private Cloud
12 5 (1.38%) Stackdriver
13 2 (0.55%) Slack
Communications & Networking
1 77 (21.27%) TCP/IP
2 68 (18.78%) DNS
3 60 (16.57%) Firewall
4 53 (14.64%) DHCP
5 37 (10.22%) VPN
6 31 (8.56%) Internet
7 30 (8.29%) SNMP
8 25 (6.91%) HTTP
9 19 (5.25%) VoIP
10 18 (4.97%) Network Security
10 18 (4.97%) SAN
11 17 (4.70%) ICMP
12 14 (3.87%) Reverse Proxy
13 12 (3.31%) PBX
14 11 (3.04%) Wireless
15 10 (2.76%) LAN
15 10 (2.76%) WAN
16 9 (2.49%) RTP
16 9 (2.49%) VLAN
17 7 (1.93%) Wireshark
Database & Business Intelligence
1 44 (12.15%) SQL Server
2 36 (9.94%) MySQL
3 27 (7.46%) PostgreSQL
3 27 (7.46%) Relational Database
4 18 (4.97%) Oracle Database
5 17 (4.70%) MongoDB
6 14 (3.87%) Amazon RDS
7 12 (3.31%) RDBMS
8 11 (3.04%) Apache Cassandra
9 7 (1.93%) SQL Server 2012
9 7 (1.93%) SQL Server 2014
10 6 (1.66%) Amazon Redshift
10 6 (1.66%) MariaDB
10 6 (1.66%) NoSQL
10 6 (1.66%) Oracle Database 10g
10 6 (1.66%) Oracle Database 11g
10 6 (1.66%) Oracle Database 12c
10 6 (1.66%) Oracle Exadata
10 6 (1.66%) SQL Server 2008
11 5 (1.38%) Big Data
Development Applications
1 44 (12.15%) Jenkins
2 42 (11.60%) JIRA
3 27 (7.46%) Git (software)
4 15 (4.14%) Eclipse
4 15 (4.14%) Rational Team Concert
5 12 (3.31%) Metasploit
5 12 (3.31%) Visual Studio
6 10 (2.76%) Maven
7 9 (2.49%) Bitbucket
8 8 (2.21%) Team Foundation Server
9 7 (1.93%) Subversion
10 6 (1.66%) GDB
10 6 (1.66%) Octopus Deploy
10 6 (1.66%) TeamCity
10 6 (1.66%) Valgrind
11 5 (1.38%) Selenium
12 4 (1.10%) Checkstyle
12 4 (1.10%) Cucumber
12 4 (1.10%) Gradle
12 4 (1.10%) WebDriver
General
1 40 (11.05%) Retail
2 34 (9.39%) Finance
3 14 (3.87%) Telecoms
4 13 (3.59%) Advertising
5 11 (3.04%) French Language
5 11 (3.04%) German Language
5 11 (3.04%) Swedish Language
6 5 (1.38%) Games
7 4 (1.10%) Publishing
8 3 (0.83%) Automotive
8 3 (0.83%) Banking
8 3 (0.83%) Marketing
8 3 (0.83%) Multimedia
9 2 (0.55%) Back Office
Job Titles
1 46 (12.71%) Developer
2 45 (12.43%) DevOps Engineer
3 33 (9.12%) Security Engineer
4 30 (8.29%) Linux Engineer
5 27 (7.46%) Java Developer
6 24 (6.63%) Infrastructure Engineer
7 23 (6.35%) Administrator
7 23 (6.35%) Analyst
7 23 (6.35%) Linux/Unix DevOps
8 22 (6.08%) Senior Developer
9 21 (5.80%) Architect
9 21 (5.80%) Security Manager
10 20 (5.52%) Cloud Engineer
10 20 (5.52%) Linux DevOps Engineer
11 19 (5.25%) Infrastructure Architect
12 18 (4.97%) Infrastructure Manager
13 17 (4.70%) Python Engineer
14 16 (4.42%) Information Manager
14 16 (4.42%) Information Security Manager
14 16 (4.42%) Systems Engineer
Libraries, Frameworks & Software Standards
1 58 (16.02%) Web Services
2 28 (7.73%) Hibernate
3 25 (6.91%) HTML
4 23 (6.35%) Java EE
5 22 (6.08%) Spring
6 20 (5.52%) ActiveMQ
6 20 (5.52%) Velocity
7 19 (5.25%) jQuery
8 18 (4.97%) XML
9 17 (4.70%) J2EE
10 14 (3.87%) EJB
10 14 (3.87%) EJB 3.0
10 14 (3.87%) HornetQ
10 14 (3.87%) Java SE
10 14 (3.87%) JMS
10 14 (3.87%) WebSphere MQ
11 12 (3.31%) CSS
12 11 (3.04%) LAMP
13 10 (2.76%) AngularJS
14 9 (2.49%) Elastic Stack
Miscellaneous
1 49 (13.54%) Analytical Skills
2 44 (12.15%) Management Information System
3 29 (8.01%) Security Operations Centre
4 27 (7.46%) Enterprise Software
5 25 (6.91%) Computer Science
5 25 (6.91%) Data Centre
6 23 (6.35%) Self-Motivation
7 19 (5.25%) Hybrid Cloud
7 19 (5.25%) Replication
8 18 (4.97%) Linux Command Line
8 18 (4.97%) Public Cloud
9 15 (4.14%) Private Cloud
10 8 (2.21%) Cloud Native
11 7 (1.93%) Data Structures
11 7 (1.93%) Fintech
12 6 (1.66%) Mainframe
13 5 (1.38%) Algorithms
13 5 (1.38%) Client/Server
13 5 (1.38%) Driving Licence
13 5 (1.38%) Enterprise Storage
Operating Systems
1 156 (43.09%) Windows
2 145 (40.06%) Unix
3 57 (15.75%) Windows Server
4 30 (8.29%) Ubuntu
5 26 (7.18%) Debian
6 24 (6.63%) AIX
7 20 (5.52%) Mac OS X
8 17 (4.70%) Kali Linux
9 11 (3.04%) CoreOS
9 11 (3.04%) Windows Server 2012
10 8 (2.21%) Red Hat Enterprise Linux
10 8 (2.21%) Windows 10
10 8 (2.21%) Windows 8
10 8 (2.21%) Windows Server 2008
11 7 (1.93%) CentOS
11 7 (1.93%) HPUX
11 7 (1.93%) Windows 7
12 3 (0.83%) Android
12 3 (0.83%) Windows Server 2003
13 2 (0.55%) Solaris
Processes & Methodologies
1 117 (32.32%) Agile Software Development
1 117 (32.32%) DevOps
2 79 (21.82%) Problem-Solving
3 72 (19.89%) ITIL
4 58 (16.02%) SIEM
5 46 (12.71%) Site Reliability Engineering
6 45 (12.43%) Information Security
7 43 (11.88%) Security Architecture
8 34 (9.39%) Open Source
8 34 (9.39%) Security Operations
9 32 (8.84%) Vulnerability Management
10 31 (8.56%) Infrastructure Engineering
10 31 (8.56%) Performance Monitoring
11 30 (8.29%) Application Performance Monitoring
11 30 (8.29%) E-Commerce
11 30 (8.29%) Mentoring
12 29 (8.01%) Identity Access Management
13 27 (7.46%) Systems Engineering
14 26 (7.18%) Software Engineering
15 25 (6.91%) Penetration Testing
Programming Languages
1 153 (42.27%) Python
2 107 (29.56%) Java
3 58 (16.02%) SQL
4 49 (13.54%) Bash Shell
5 44 (12.15%) Shell Script
6 37 (10.22%) PHP
7 36 (9.94%) PowerShell
8 35 (9.67%) Perl
9 33 (9.12%) JavaScript
10 25 (6.91%) Ruby
11 19 (5.25%) C++
12 15 (4.14%) Groovy
13 13 (3.59%) AWK
13 13 (3.59%) C
14 12 (3.31%) Go
15 7 (1.93%) Java 8
16 6 (1.66%) ANSI SQL
16 6 (1.66%) VBScript
17 5 (1.38%) C#
17 5 (1.38%) T-SQL
Qualifications
1 76 (20.99%) Degree
2 36 (9.94%) CISM
2 36 (9.94%) CISSP
3 29 (8.01%) SSCP
4 22 (6.08%) Computer Science Degree
5 17 (4.70%) CEH
5 17 (4.70%) CompTIA Security+
5 17 (4.70%) GCIA
5 17 (4.70%) GCIH
5 17 (4.70%) GSEC
6 16 (4.42%) CISA
6 16 (4.42%) Cisco Certification
7 13 (3.59%) CCNA
8 12 (3.31%) CRISC
8 12 (3.31%) CSSLP
8 12 (3.31%) GIAC
8 12 (3.31%) Microsoft Certification
8 12 (3.31%) SANS
9 10 (2.76%) AWS Certification
10 8 (2.21%) Master's Degree
Quality Assurance & Compliance
1 28 (7.73%) ISO/IEC 27001
2 26 (7.18%) PCI DSS
3 15 (4.14%) GDPR
4 14 (3.87%) ISO 22301
5 10 (2.76%) COBIT
6 7 (1.93%) SLA
7 5 (1.38%) Cyber Essentials
8 3 (0.83%) BS7799
8 3 (0.83%) QA
9 2 (0.55%) HIPAA
10 1 (0.28%) SEPA
System Software
1 81 (22.38%) Docker
2 51 (14.09%) VMware Infrastructure
3 37 (10.22%) VMware ESXi
4 36 (9.94%) Active Directory
5 25 (6.91%) Hyper-V
6 21 (5.80%) Ceph
7 18 (4.97%) vSphere
8 6 (1.66%) KVM
8 6 (1.66%) VirtualBox
8 6 (1.66%) VMware NSX
9 3 (0.83%) NFS
10 2 (0.55%) Firmware
10 2 (0.55%) Microsoft Virtual Server
10 2 (0.55%) Virtual Servers
10 2 (0.55%) Xen
10 2 (0.55%) XenApp
10 2 (0.55%) XenDesktop
10 2 (0.55%) XenServer
11 1 (0.28%) ISA Server
11 1 (0.28%) VMware Server
Systems Management
1 75 (20.72%) Puppet
2 55 (15.19%) Kubernetes
3 45 (12.43%) Ansible
4 41 (11.33%) Opscode Chef
5 18 (4.97%) Grafana
6 12 (3.31%) Nessus
6 12 (3.31%) Nmap
6 12 (3.31%) Terraform
7 11 (3.04%) vRealize
7 11 (3.04%) vRealize Orchestrator
8 9 (2.49%) Backup Exec
8 9 (2.49%) HAProxy
9 8 (2.21%) HP Data Protector
9 8 (2.21%) Prometheus
10 7 (1.93%) Docker Swarm
11 6 (1.66%) Rancher
11 6 (1.66%) vCenter Server
12 5 (1.38%) Mesos
12 5 (1.38%) QRadar
12 5 (1.38%) SCCM
Vendors
1 89 (24.59%) VMware
2 77 (21.27%) Oracle
3 74 (20.44%) Microsoft
4 50 (13.81%) IBM
5 38 (10.50%) NetApp
6 27 (7.46%) Google
7 22 (6.08%) Splunk
8 20 (5.52%) Cisco
9 16 (4.42%) LogRhythm
10 15 (4.14%) Citrix
11 14 (3.87%) HP
12 12 (3.31%) Netsparker
12 12 (3.31%) Qualys
13 11 (3.04%) New Relic
13 11 (3.04%) Red Hat
13 11 (3.04%) Sybase
14 10 (2.76%) SolarWinds
15 9 (2.49%) Juniper
15 9 (2.49%) Veeam
16 8 (2.21%) Symantec