Period
to 24 February 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 24 February 2018 with a comparison to the same period in the previous 2 years.

Linux
Hertfordshire > Welwyn Garden City
6 months to
24 Feb 2018
Same period 2017 Same period 2016
Rank 3 3 30
Rank change year-on-year 0 +27 -5
Permanent jobs citing Linux 82 43 7
As % of all permanent IT jobs advertised in Welwyn Garden City 23.77% 20.98% 4.09%
As % of the Operating Systems category 66.67% 76.79% 14.29%
Number of salaries quoted 22 42 7
Welwyn Garden City median annual salary £51,000 £50,000 £28,500
Median salary % change year-on-year +2.00% +75.44% -5.00%
10th Percentile £42,500 £31,500 £26,750
90th Percentile £71,250 £75,000 £33,450
Hertfordshire median annual salary £57,500 £50,000 £45,000
% change year-on-year +15.00% +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 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 123 56 49
As % of all permanent IT jobs advertised in Welwyn Garden City 35.65% 27.32% 28.65%
Number of salaries quoted 52 51 32
Welwyn Garden City median annual salary £42,500 £45,000 £39,500
Median salary % change year-on-year -5.56% +13.92% +21.54%
10th Percentile £26,000 £31,250 £26,750
90th Percentile £70,000 £75,000 £56,250
Hertfordshire median annual salary £45,000 £45,000 £40,000
% change year-on-year - +12.50% -5.88%

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 24 February 2018.

Salary histogram for Linux in Welwyn Garden City

For the 6 months to 24 February 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 44 (53.66%) Public Cloud
2 41 (50.00%) Data Centre
3 40 (48.78%) Software Engineering
4 39 (47.56%) Windows
4 39 (47.56%) DevOps
5 37 (45.12%) Python
5 37 (45.12%) DNS
5 37 (45.12%) VMware
6 36 (43.90%) The Twelve-Factor App
7 28 (34.15%) TCP/IP
7 28 (34.15%) DHCP
8 25 (30.49%) Stakeholder Management
9 24 (29.27%) Infrastructure Transformation
10 23 (28.05%) SNMP
11 22 (26.83%) HTML
12 21 (25.61%) vCenter Server
12 21 (25.61%) VMware NSX
12 21 (25.61%) Analytical Skills
12 21 (25.61%) SIEM
13 19 (23.17%) Opscode Chef
13 19 (23.17%) Agile Software Development
13 19 (23.17%) Bash Shell
13 19 (23.17%) Puppet
14 18 (21.95%) HTTP
14 18 (21.95%) Firewall
15 17 (20.73%) XML
15 17 (20.73%) Unix
15 17 (20.73%) PowerShell
16 16 (19.51%) Degree
16 16 (19.51%) Splunk

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 16 (19.51%) OpenStack
2 1 (1.22%) Apache
2 1 (1.22%) nginx
Cloud Services
1 12 (14.63%) Akamai
2 11 (13.41%) Amazon AWS
3 6 (7.32%) GitHub
3 6 (7.32%) Microsoft Azure
Communications & Networking
1 37 (45.12%) DNS
2 28 (34.15%) DHCP
2 28 (34.15%) TCP/IP
3 23 (28.05%) SNMP
4 18 (21.95%) Firewall
4 18 (21.95%) HTTP
5 12 (14.63%) 802.11
5 12 (14.63%) BGP
5 12 (14.63%) DWDM
5 12 (14.63%) HTTPS
5 12 (14.63%) IGRP
5 12 (14.63%) Internet
5 12 (14.63%) IPsec
5 12 (14.63%) MPLS
5 12 (14.63%) Network Security
5 12 (14.63%) OSPF
5 12 (14.63%) SSL
5 12 (14.63%) VPN
5 12 (14.63%) WAN
5 12 (14.63%) Wi-Fi
Database & Business Intelligence
1 6 (7.32%) NoSQL
2 5 (6.10%) Apache Cassandra
2 5 (6.10%) SQL Server
3 1 (1.22%) MySQL
Development Applications
1 12 (14.63%) Git (software)
2 11 (13.41%) Jenkins
3 6 (7.32%) JIRA
General
1 6 (7.32%) Finance
2 5 (6.10%) Retail
3 1 (1.22%) Electronics
Job Titles
1 39 (47.56%) Systems Engineer
2 17 (20.73%) Security Engineer
3 12 (14.63%) Network Systems Engineer
4 11 (13.41%) Linux Engineer
5 10 (12.20%) Linux Systems Engineer
5 10 (12.20%) Splunk Engineer
5 10 (12.20%) VMware Engineer
6 7 (8.54%) Senior Systems Engineer
7 6 (7.32%) Onboarding Manager
8 5 (6.10%) Development Manager
8 5 (6.10%) Engineering Manager
8 5 (6.10%) Head of Engineering
8 5 (6.10%) Network Engineer
8 5 (6.10%) Network Security Engineer
8 5 (6.10%) Software Development Manager
8 5 (6.10%) Software Manager
8 5 (6.10%) Systems Engineering Manager
8 5 (6.10%) Systems Manager
9 4 (4.88%) Embedded Software Engineer
9 4 (4.88%) Software Engineer
Libraries, Frameworks & Software Standards
1 22 (26.83%) HTML
2 17 (20.73%) XML
3 12 (14.63%) 802.1X
4 10 (12.20%) CSS
5 5 (6.10%) .NET
5 5 (6.10%) Kafka
5 5 (6.10%) RESTful
5 5 (6.10%) RxJava
5 5 (6.10%) Web Services
Miscellaneous
1 44 (53.66%) Public Cloud
2 41 (50.00%) Data Centre
3 21 (25.61%) Analytical Skills
4 15 (18.29%) Management Information System
5 11 (13.41%) Security Operations Centre
6 4 (4.88%) Computer Science
Operating Systems
1 39 (47.56%) Windows
2 17 (20.73%) Unix
3 6 (7.32%) Mac OS X
4 5 (6.10%) Windows Server 2008
4 5 (6.10%) Windows Server 2012
5 1 (1.22%) Windows Server
Processes & Methodologies
1 40 (48.78%) Software Engineering
2 39 (47.56%) DevOps
3 36 (43.90%) The Twelve-Factor App
4 25 (30.49%) Stakeholder Management
5 24 (29.27%) Infrastructure Transformation
6 21 (25.61%) SIEM
7 19 (23.17%) Agile Software Development
8 12 (14.63%) Identity Access Management
8 12 (14.63%) Load Balancing
8 12 (14.63%) Mentoring
8 12 (14.63%) Multi-Factor Authentication
8 12 (14.63%) Network Management
8 12 (14.63%) Two-Factor Authentication
8 12 (14.63%) WAN Optimisation
9 11 (13.41%) Security Operations
10 10 (12.20%) Continuous Improvement
10 10 (12.20%) Data Modelling
10 10 (12.20%) Performance Management
11 8 (9.76%) Test Automation
12 6 (7.32%) Security Architecture
Programming Languages
1 37 (45.12%) Python
2 19 (23.17%) Bash Shell
3 17 (20.73%) PowerShell
4 14 (17.07%) Java
5 10 (12.20%) JavaScript
6 6 (7.32%) SQL
7 5 (6.10%) C#
7 5 (6.10%) Groovy
8 4 (4.88%) Ada
9 3 (3.66%) C
9 3 (3.66%) C++
Qualifications
1 16 (19.51%) Degree
2 11 (13.41%) SSCP
3 7 (8.54%) CCNP
3 7 (8.54%) Cisco Certification
4 6 (7.32%) GCIA
4 6 (7.32%) GCIH
4 6 (7.32%) GSEC
5 5 (6.10%) CISA
5 5 (6.10%) CISM
5 5 (6.10%) CISSP
5 5 (6.10%) CompTIA Security+
5 5 (6.10%) CSSLP
5 5 (6.10%) GIAC
5 5 (6.10%) SANS
6 3 (3.66%) Computer Science Degree
7 1 (1.22%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 1 (1.22%) QA
System Software
1 21 (25.61%) VMware NSX
2 11 (13.41%) Docker
3 9 (10.98%) VMware ESXi
4 6 (7.32%) LXC
5 1 (1.22%) Firmware
5 1 (1.22%) vSphere
Systems Management
1 21 (25.61%) vCenter Server
2 19 (23.17%) Opscode Chef
2 19 (23.17%) Puppet
3 12 (14.63%) vRealize
4 11 (13.41%) Kubernetes
5 6 (7.32%) Ansible
5 6 (7.32%) Single Sign-On
6 5 (6.10%) Norton AntiVirus
Vendors
1 37 (45.12%) VMware
2 16 (19.51%) Splunk
3 12 (14.63%) Arista
3 12 (14.63%) Aruba
3 12 (14.63%) Blue Coat
3 12 (14.63%) CheckPoint
3 12 (14.63%) Cisco
3 12 (14.63%) Citrix
3 12 (14.63%) F5
3 12 (14.63%) Fortinet
3 12 (14.63%) Juniper
3 12 (14.63%) Meraki
3 12 (14.63%) Palo Alto
3 12 (14.63%) Riverbed
3 12 (14.63%) Tufin
4 11 (13.41%) Microsoft
4 11 (13.41%) Oracle
5 9 (10.98%) Red Hat
6 6 (7.32%) Google
7 5 (6.10%) Symantec