Period
to 25 September 2018

The following table provides summary statistics for permanent job vacancies advertised in Welwyn Garden City 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 September 2018 with a comparison to the same period in the previous 2 years.

Linux
Hertfordshire > Welwyn Garden City
6 months to
25 Sep 2018
Same period 2017 Same period 2016
Rank 25 26 3
Rank change year-on-year +1 -23 +20
Permanent jobs citing Linux 40 14 50
As % of all permanent IT jobs advertised in Welwyn Garden City 9.43% 7.11% 24.27%
As % of the Operating Systems category 33.61% 21.88% 53.76%
Number of salaries quoted 8 13 50
Welwyn Garden City median annual salary £72,000 £40,000 £47,500
Median salary % change year-on-year +80.00% -15.79% +5.56%
10th Percentile £40,875 £30,750 £31,250
90th Percentile £76,275 £68,750 £63,125
Hertfordshire median annual salary £57,500 £47,000 £46,500
% change year-on-year +22.34% +1.08% +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 advertised in Welwyn Garden City with a requirement for operating system skills.

All Operating Systems
Welwyn Garden City
Permanent vacancies with a requirement for operating system skills 119 64 93
As % of all permanent IT jobs advertised in Welwyn Garden City 28.07% 32.49% 45.15%
Number of salaries quoted 34 56 80
Welwyn Garden City median annual salary £56,250 £32,000 £47,500
Median salary % change year-on-year +75.78% -32.63% -
10th Percentile £20,500 £24,875 £32,375
90th Percentile £72,500 £49,375 £60,250
Hertfordshire median annual salary £45,000 £42,500 £44,500
% change year-on-year +5.88% -4.49% +4.71%

Linux
Job Vacancy Trend in Welwyn Garden City

Job postings citing Linux as a percentage of all IT jobs advertised in Welwyn Garden City.

Job vacancy trend for Linux in Welwyn Garden City

Linux
Salary Trend in Welwyn Garden City

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

Salary trend for Linux in Welwyn Garden City

Linux
Salary Histogram in Welwyn Garden City

The salary distribution of IT jobs citing Linux in Welwyn Garden City over the 6 months to 25 September 2018.

Salary histogram for Linux in Welwyn Garden City

For the 6 months to 25 September 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 Welwyn Garden City region with a requirement for Linux.

1 27 (67.50%) Amazon AWS
2 26 (65.00%) Agile Software Development
3 24 (60.00%) DevOps
4 20 (50.00%) Security Operations
4 20 (50.00%) Security Operations Centre
4 20 (50.00%) SIEM
4 20 (50.00%) Python
4 20 (50.00%) SSCP
5 17 (42.50%) Splunk
5 17 (42.50%) Security Architecture
5 17 (42.50%) Identity Access Management
5 17 (42.50%) Performance Monitoring
5 17 (42.50%) Application Performance Monitoring
6 16 (40.00%) Problem-Solving
7 15 (37.50%) Java
7 15 (37.50%) DNS
8 14 (35.00%) Firewall
9 13 (32.50%) Microsoft
9 13 (32.50%) Windows
9 13 (32.50%) Microsoft Azure
10 12 (30.00%) Vulnerability Management
10 12 (30.00%) Open Source
10 12 (30.00%) CEH
10 12 (30.00%) CompTIA Security+
10 12 (30.00%) Kali Linux
10 12 (30.00%) Jenkins
11 11 (27.50%) Technical Analysis
11 11 (27.50%) Self-Motivation
11 11 (27.50%) Ruby
11 11 (27.50%) Degree

Linux
Co-occurring IT Skills in Welwyn Garden City 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 4 (10.00%) Apache
1 4 (10.00%) IIS
2 2 (5.00%) Elasticsearch
2 2 (5.00%) OpenStack
2 2 (5.00%) SharePoint
2 2 (5.00%) Skype for Business
Cloud Services
1 27 (67.50%) Amazon AWS
2 13 (32.50%) Microsoft Azure
3 8 (20.00%) GitHub
4 6 (15.00%) Runscope
5 3 (7.50%) Cloud Computing
5 3 (7.50%) Google Cloud Platform
6 2 (5.00%) Akamai
6 2 (5.00%) AWS CloudTrail
6 2 (5.00%) Office 365
Communications & Networking
1 15 (37.50%) DNS
2 14 (35.00%) Firewall
3 11 (27.50%) DHCP
3 11 (27.50%) HTTP
3 11 (27.50%) ICMP
3 11 (27.50%) SNMP
3 11 (27.50%) TCP/IP
4 3 (7.50%) Internet
4 3 (7.50%) VPN
4 3 (7.50%) Wireless
5 2 (5.00%) Cisco Nexus
5 2 (5.00%) FabricPath
5 2 (5.00%) Skype
5 2 (5.00%) VLAN
Database & Business Intelligence
1 6 (15.00%) Oracle Exadata
2 4 (10.00%) SQL Server
3 3 (7.50%) NoSQL
4 2 (5.00%) Apache Cassandra
4 2 (5.00%) Endeca
5 1 (2.50%) MySQL
Development Applications
1 12 (30.00%) Jenkins
2 9 (22.50%) Metasploit
3 8 (20.00%) JIRA
4 4 (10.00%) Octopus Deploy
5 2 (5.00%) Cucumber
5 2 (5.00%) JUnit
5 2 (5.00%) Mockito
5 2 (5.00%) Spock
5 2 (5.00%) Vagrant
General
1 6 (15.00%) Retail
2 2 (5.00%) Finance
Job Titles
1 17 (42.50%) Security Engineer
2 9 (22.50%) Vulnerability Management Engineer
3 6 (15.00%) Development Engineer
3 6 (15.00%) Head of Engineering
3 6 (15.00%) Head of Infrastructure
3 6 (15.00%) Software Development Engineer
3 6 (15.00%) Software Engineer
4 4 (10.00%) Technical Leader
5 3 (7.50%) Analyst
5 3 (7.50%) SOC Analyst
5 3 (7.50%) VMware Engineer
6 2 (5.00%) 3rd Line Engineer
6 2 (5.00%) Server Engineer
7 1 (2.50%) 3rd Line Server Engineer
7 1 (2.50%) C# Developer
7 1 (2.50%) C# Software Developer
7 1 (2.50%) Cloud Engineer
7 1 (2.50%) Developer
7 1 (2.50%) Software Developer
Libraries, Frameworks & Software Standards
1 5 (12.50%) .NET
2 4 (10.00%) Web Services
3 3 (7.50%) .NET Core
3 3 (7.50%) ASP.NET Web API
3 3 (7.50%) Elastic Stack
4 2 (5.00%) Backbone.js
4 2 (5.00%) CSS
4 2 (5.00%) CSS3
4 2 (5.00%) HTML
4 2 (5.00%) HTML5
4 2 (5.00%) J2EE
4 2 (5.00%) Kafka
4 2 (5.00%) Node.js
4 2 (5.00%) React
4 2 (5.00%) REST
4 2 (5.00%) RESTful
4 2 (5.00%) RxJava
4 2 (5.00%) Vert.x
Miscellaneous
1 20 (50.00%) Security Operations Centre
2 11 (27.50%) Self-Motivation
3 8 (20.00%) Analytical Skills
3 8 (20.00%) Management Information System
4 6 (15.00%) Mainframe
5 5 (12.50%) Data Centre
6 3 (7.50%) Cyber Kill Chain
6 3 (7.50%) Enterprise Software
6 3 (7.50%) Linux Command Line
7 2 (5.00%) Hybrid Cloud
8 1 (2.50%) Private Cloud
Operating Systems
1 13 (32.50%) Windows
2 12 (30.00%) Kali Linux
3 11 (27.50%) Mac OS X
4 7 (17.50%) Windows Server
5 4 (10.00%) CentOS
5 4 (10.00%) Ubuntu
6 2 (5.00%) Windows Server 2003
6 2 (5.00%) Windows Server 2012
Processes & Methodologies
1 26 (65.00%) Agile Software Development
2 24 (60.00%) DevOps
3 20 (50.00%) Security Operations
3 20 (50.00%) SIEM
4 17 (42.50%) Application Performance Monitoring
4 17 (42.50%) Identity Access Management
4 17 (42.50%) Performance Monitoring
4 17 (42.50%) Security Architecture
5 16 (40.00%) Problem-Solving
6 12 (30.00%) Open Source
6 12 (30.00%) Vulnerability Management
7 11 (27.50%) Information Security
7 11 (27.50%) Technical Analysis
8 10 (25.00%) Software Engineering
9 9 (22.50%) Continuous Improvement
9 9 (22.50%) Penetration Testing
9 9 (22.50%) Secure Coding
9 9 (22.50%) Threat Modelling
10 8 (20.00%) Analytical Thinking
10 8 (20.00%) Critical Thinking
Programming Languages
1 20 (50.00%) Python
2 15 (37.50%) Java
3 11 (27.50%) Ruby
4 9 (22.50%) Go
4 9 (22.50%) Perl
4 9 (22.50%) PHP
5 7 (17.50%) PowerShell
6 5 (12.50%) C#
7 4 (10.00%) SQL
8 3 (7.50%) Bash Shell
9 2 (5.00%) Groovy
9 2 (5.00%) JavaScript
Qualifications
1 20 (50.00%) SSCP
2 12 (30.00%) CEH
2 12 (30.00%) CompTIA Security+
3 11 (27.50%) Degree
3 11 (27.50%) GCIA
3 11 (27.50%) GCIH
3 11 (27.50%) GSEC
4 9 (22.50%) CISA
4 9 (22.50%) CISM
4 9 (22.50%) CISSP
4 9 (22.50%) CSSLP
4 9 (22.50%) GIAC
4 9 (22.50%) SANS
5 3 (7.50%) A+ Certification
5 3 (7.50%) CCENT
5 3 (7.50%) CCNA
5 3 (7.50%) Cisco Certification
5 3 (7.50%) Network+ Certification
5 3 (7.50%) OSCP
Quality Assurance & Compliance
1 4 (10.00%) PCI DSS
System Software
1 8 (20.00%) Active Directory
2 7 (17.50%) Docker
3 5 (12.50%) VMware Infrastructure
4 4 (10.00%) VMware NSX
4 4 (10.00%) vSphere
5 2 (5.00%) NFS
5 2 (5.00%) VMware Server
Systems Management
1 9 (22.50%) Nessus
1 9 (22.50%) Nmap
2 4 (10.00%) Kubernetes
2 4 (10.00%) vRealize
2 4 (10.00%) vRealize Orchestrator
3 3 (7.50%) QRadar
4 2 (5.00%) Docker Swarm
4 2 (5.00%) Grafana
4 2 (5.00%) Opscode Chef
4 2 (5.00%) SCCM
4 2 (5.00%) SCOM
4 2 (5.00%) SCOrch
4 2 (5.00%) Terraform
4 2 (5.00%) vCenter Server
Vendors
1 17 (42.50%) Splunk
2 13 (32.50%) Microsoft
3 9 (22.50%) Netsparker
3 9 (22.50%) Qualys
4 7 (17.50%) VMware
5 4 (10.00%) Oracle
6 2 (5.00%) AppDynamics
6 2 (5.00%) ATG
6 2 (5.00%) Cisco
6 2 (5.00%) CommVault
6 2 (5.00%) EXTOL
6 2 (5.00%) HP
6 2 (5.00%) NetApp
6 2 (5.00%) SolarWinds
7 1 (2.50%) Juniper