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

Linux
Hertfordshire > Welwyn Garden City
6 months to
17 Jun 2018
Same period 2017 Same period 2016
Rank 10 7 5
Rank change year-on-year -3 -2 +22
Permanent jobs citing Linux 67 29 30
As % of all permanent IT jobs advertised in Welwyn Garden City 16.88% 13.81% 19.87%
As % of the Operating Systems category 67.68% 53.70% 49.18%
Number of salaries quoted 9 26 30
Welwyn Garden City median annual salary £45,000 £45,000 £41,500
Median salary % change year-on-year - +8.43% +25.76%
10th Percentile £41,000 £33,250 £26,325
90th Percentile £52,000 £68,750 £47,400
Hertfordshire 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 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 99 54 61
As % of all permanent IT jobs advertised in Welwyn Garden City 24.94% 25.71% 40.40%
Number of salaries quoted 28 44 55
Welwyn Garden City median annual salary £43,750 £45,000 £42,500
Median salary % change year-on-year -2.78% +5.88% -5.56%
10th Percentile £21,025 £25,500 £26,750
90th Percentile £68,750 £63,875 £57,500
Hertfordshire median annual salary £45,000 £42,500 £41,500
% change year-on-year +5.88% +2.41% -1.19%

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

For the 6 months to 17 June 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 38 (56.72%) DevOps
2 34 (50.75%) Agile Software Development
3 33 (49.25%) Splunk
4 29 (43.28%) Amazon AWS
4 29 (43.28%) Java
5 26 (38.81%) Python
5 26 (38.81%) DNS
6 23 (34.33%) Jenkins
7 22 (32.84%) Problem-Solving
7 22 (32.84%) SNMP
7 22 (32.84%) TCP/IP
7 22 (32.84%) Oracle
7 22 (32.84%) Software Engineering
8 21 (31.34%) DHCP
9 20 (29.85%) Test Automation
9 20 (29.85%) Docker
9 20 (29.85%) Data Centre
10 19 (28.36%) Degree
11 18 (26.87%) Firewall
11 18 (26.87%) HTML
11 18 (26.87%) Public Cloud
11 18 (26.87%) Runscope
12 17 (25.37%) Analytical Skills
12 17 (25.37%) Opscode Chef
12 17 (25.37%) HTTP
13 16 (23.88%) C#
13 16 (23.88%) .NET
13 16 (23.88%) SQL Server
13 16 (23.88%) Web Services
13 16 (23.88%) Continuous Integration

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 6 (8.96%) Elasticsearch
2 4 (5.97%) Apache
2 4 (5.97%) IIS
2 4 (5.97%) OpenStack
Cloud Services
1 29 (43.28%) Amazon AWS
2 18 (26.87%) Runscope
3 13 (19.40%) Akamai
4 7 (10.45%) GitHub
4 7 (10.45%) Microsoft Azure
5 6 (8.96%) AWS CloudTrail
6 3 (4.48%) Cloud Computing
6 3 (4.48%) Google Cloud Platform
7 2 (2.99%) Office 365
Communications & Networking
1 26 (38.81%) DNS
2 22 (32.84%) SNMP
2 22 (32.84%) TCP/IP
3 21 (31.34%) DHCP
4 18 (26.87%) Firewall
5 17 (25.37%) HTTP
6 10 (14.93%) ICMP
6 10 (14.93%) Internet
6 10 (14.93%) VPN
7 7 (10.45%) 802.11
7 7 (10.45%) BGP
7 7 (10.45%) DWDM
7 7 (10.45%) HTTPS
7 7 (10.45%) IGRP
7 7 (10.45%) IPsec
7 7 (10.45%) MPLS
7 7 (10.45%) OSPF
7 7 (10.45%) SSL
7 7 (10.45%) WAN
7 7 (10.45%) Wi-Fi
Database & Business Intelligence
1 16 (23.88%) SQL Server
2 12 (17.91%) NoSQL
3 10 (14.93%) Apache Cassandra
4 6 (8.96%) Endeca
5 1 (1.49%) MySQL
Development Applications
1 23 (34.33%) Jenkins
2 7 (10.45%) Git (software)
2 7 (10.45%) JIRA
3 6 (8.96%) Cucumber
3 6 (8.96%) JUnit
3 6 (8.96%) Mockito
3 6 (8.96%) Spock
General
1 13 (19.40%) Retail
Job Titles
1 21 (31.34%) Software Engineer
2 19 (28.36%) Systems Engineer
3 18 (26.87%) Development Engineer
3 18 (26.87%) Software Development Engineer
4 12 (17.91%) Security Engineer
5 7 (10.45%) Network Systems Engineer
5 7 (10.45%) VMware Engineer
6 6 (8.96%) Onboarding Manager
7 5 (7.46%) Network Engineer
7 5 (7.46%) Network Security Engineer
7 5 (7.46%) Splunk Engineer
8 4 (5.97%) Development Manager
8 4 (5.97%) Software Development Manager
8 4 (5.97%) Software Manager
9 3 (4.48%) Analyst
9 3 (4.48%) Embedded Software Engineer
9 3 (4.48%) Linux Engineer
9 3 (4.48%) Linux Systems Engineer
9 3 (4.48%) Software Test Engineer
9 3 (4.48%) Test Engineer
Libraries, Frameworks & Software Standards
1 18 (26.87%) HTML
2 16 (23.88%) .NET
2 16 (23.88%) Web Services
3 12 (17.91%) XML
4 11 (16.42%) CSS
5 10 (14.93%) Kafka
5 10 (14.93%) RESTful
5 10 (14.93%) RxJava
5 10 (14.93%) Vert.x
6 7 (10.45%) 802.1X
7 6 (8.96%) .NET Core
7 6 (8.96%) ASP.NET Web API
7 6 (8.96%) Backbone.js
7 6 (8.96%) CSS3
7 6 (8.96%) HTML5
7 6 (8.96%) J2EE
7 6 (8.96%) Node.js
7 6 (8.96%) React
8 3 (4.48%) Elastic Stack
Miscellaneous
1 20 (29.85%) Data Centre
2 18 (26.87%) Public Cloud
3 17 (25.37%) Analytical Skills
4 15 (22.39%) Management Information System
4 15 (22.39%) Security Operations Centre
5 10 (14.93%) Self-Motivation
6 3 (4.48%) Computer Science
6 3 (4.48%) Cyber Kill Chain
6 3 (4.48%) Enterprise Software
6 3 (4.48%) Linux Command Line
7 1 (1.49%) Private Cloud
Operating Systems
1 15 (22.39%) Windows
2 10 (14.93%) Mac OS X
3 7 (10.45%) Unix
4 5 (7.46%) Windows Server 2012
5 3 (4.48%) Kali Linux
5 3 (4.48%) Windows Server
Processes & Methodologies
1 38 (56.72%) DevOps
2 34 (50.75%) Agile Software Development
3 22 (32.84%) Problem-Solving
3 22 (32.84%) Software Engineering
4 20 (29.85%) Test Automation
5 16 (23.88%) Continuous Integration
6 15 (22.39%) Security Operations
6 15 (22.39%) SIEM
7 13 (19.40%) Identity Access Management
7 13 (19.40%) Stakeholder Management
8 12 (17.91%) BDD
8 12 (17.91%) Data Privacy
8 12 (17.91%) E-Commerce
9 11 (16.42%) The Twelve-Factor App
10 10 (14.93%) Information Security
10 10 (14.93%) Technical Analysis
11 9 (13.43%) Performance Management
11 9 (13.43%) Performance Testing
12 8 (11.94%) Mentoring
13 7 (10.45%) Application Performance Monitoring
Programming Languages
1 29 (43.28%) Java
2 26 (38.81%) Python
3 16 (23.88%) C#
4 15 (22.39%) PowerShell
5 13 (19.40%) SQL
6 12 (17.91%) Bash Shell
7 10 (14.93%) Groovy
8 6 (8.96%) Ruby
9 5 (7.46%) JavaScript
10 3 (4.48%) Ada
10 3 (4.48%) C
10 3 (4.48%) C++
Qualifications
1 19 (28.36%) Degree
2 10 (14.93%) GCIA
2 10 (14.93%) GCIH
2 10 (14.93%) GSEC
2 10 (14.93%) SSCP
3 5 (7.46%) Cisco Certification
4 3 (4.48%) A+ Certification
4 3 (4.48%) CCENT
4 3 (4.48%) CCNA
4 3 (4.48%) CEH
4 3 (4.48%) CompTIA Security+
4 3 (4.48%) Computer Science Degree
4 3 (4.48%) Network+ Certification
4 3 (4.48%) OSCP
5 2 (2.99%) CCNP
Quality Assurance & Compliance
1 1 (1.49%) QA
System Software
1 20 (29.85%) Docker
2 11 (16.42%) VMware NSX
3 4 (5.97%) Active Directory
3 4 (5.97%) LXC
3 4 (5.97%) VMware ESXi
4 2 (2.99%) VMware Server
5 1 (1.49%) VMware Infrastructure
Systems Management
1 17 (25.37%) Opscode Chef
2 14 (20.90%) Kubernetes
3 11 (16.42%) Puppet
3 11 (16.42%) vCenter Server
4 7 (10.45%) vRealize
5 6 (8.96%) Single Sign-On
6 4 (5.97%) Ansible
7 3 (4.48%) QRadar
Vendors
1 33 (49.25%) Splunk
2 22 (32.84%) Oracle
3 14 (20.90%) VMware
4 10 (14.93%) Microsoft
5 8 (11.94%) Juniper
6 7 (10.45%) Arista
6 7 (10.45%) Aruba
6 7 (10.45%) Blue Coat
6 7 (10.45%) CheckPoint
6 7 (10.45%) Cisco
6 7 (10.45%) Citrix
6 7 (10.45%) F5
6 7 (10.45%) Fortinet
6 7 (10.45%) Meraki
6 7 (10.45%) Palo Alto
6 7 (10.45%) Riverbed
6 7 (10.45%) Tufin
6 7 (10.45%) Zscaler
7 6 (8.96%) AppDynamics
7 6 (8.96%) ATG