The following table provides summary statistics for permanent job vacancies advertised in Somerset with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 3 months to 25 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
25 Mar 2017
Same period 2016 Same period 2015
CentOS Linux
South West / Somerset
Rank 77 71 65
Rank change year-on-year -6 -6  
Permanent jobs citing CentOS 1 1 4
As % of all permanent IT jobs advertised in Somerset 0.16% 0.16% 0.80%
As % of the Operating Systems category 0.72% 0.54% 2.76%
Number of salaries quoted 1 1 4
Median salary £47,500 £45,000 £42,500
Median salary % change year-on-year +5.55% +5.88%  
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year - +5.88%  

CentOS is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Somerset with a requirement for operating system skills.

Operating System Skills
Somerset
Permanent job vacancies with a requirement for operating system skills 139 185 145
As % of all permanent IT job vacancies advertised in Somerset 21.65% 29.09% 28.83%
Number of salaries quoted 130 177 125
Median salary £34,000 £37,500 £35,000
Median salary % change year-on-year -9.33% +7.14%  
90% offered a salary of more than £19,000 £20,500 £23,000
10% offered a salary of more than £60,000 £42,500 £52,500
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Somerset

The job posting trend of jobs advertised in Somerset citing CentOS as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for CentOS in Somerset

CentOS
Salary Trend in Somerset

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS in Somerset.

Salary trend for CentOS in Somerset

CentOS
Top 30 Related IT Skills in Somerset

For the 6 months to 25 March 2017, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Somerset region with a requirement for CentOS.

1 6 (100.00%) PHP
1 6 (100.00%) Linux
1 6 (100.00%) Apache
2 4 (66.67%) Tomcat
2 4 (66.67%) Java
3 3 (50.00%) ITIL
3 3 (50.00%) Unix
3 3 (50.00%) Windows
3 3 (50.00%) .NET
3 3 (50.00%) MySQL
3 3 (50.00%) IIS
3 3 (50.00%) C#
3 3 (50.00%) Eclipse
3 3 (50.00%) Red Hat
3 3 (50.00%) LAMP
3 3 (50.00%) Continuous Integration
3 3 (50.00%) Jetty
3 3 (50.00%) Bash Shell
4 2 (33.33%) Git (software)
4 2 (33.33%) Symfony
4 2 (33.33%) Node.js
4 2 (33.33%) ITIL V3
4 2 (33.33%) WebSockets
4 2 (33.33%) Agile Software Development
4 2 (33.33%) Debian
4 2 (33.33%) Scrum
4 2 (33.33%) Active Directory
4 2 (33.33%) MS Excel
4 2 (33.33%) Visual Studio
4 2 (33.33%) JavaScript

CentOS
Top Related IT Skills in Somerset 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 (100.00%) Apache
2 4 (66.67%) Tomcat
3 3 (50.00%) IIS
3 3 (50.00%) Jetty
4 1 (16.67%) Elasticsearch
4 1 (16.67%) JBoss
Applications
1 2 (33.33%) MS Excel
Database & Business Intelligence
1 3 (50.00%) MySQL
2 1 (16.67%) PostgreSQL
Development Applications
1 3 (50.00%) Eclipse
2 2 (33.33%) Git (software)
2 2 (33.33%) Visual Studio
Job Titles
1 3 (50.00%) Analyst
1 3 (50.00%) Applications Support
1 3 (50.00%) Applications Support Analyst
1 3 (50.00%) Support Analyst
2 2 (33.33%) Developer
2 2 (33.33%) PHP Developer
3 1 (16.67%) Administrator
3 1 (16.67%) Linux Administrator
3 1 (16.67%) Linux Systems Administrator
3 1 (16.67%) Systems Administrator
Libraries, Frameworks & Software Standards
1 3 (50.00%) .NET
1 3 (50.00%) LAMP
2 2 (33.33%) Node.js
2 2 (33.33%) Symfony
2 2 (33.33%) WebSockets
3 1 (16.67%) LAPP Stack
3 1 (16.67%) Spring Boot
Operating Systems
1 6 (100.00%) Linux
2 3 (50.00%) Unix
2 3 (50.00%) Windows
3 2 (33.33%) Debian
4 1 (16.67%) Red Hat Enterprise Linux
4 1 (16.67%) Ubuntu
Processes & Methodologies
1 3 (50.00%) Continuous Integration
1 3 (50.00%) ITIL
2 2 (33.33%) Agile Software Development
2 2 (33.33%) ITIL V3
2 2 (33.33%) Scrum
3 1 (16.67%) SDLC
3 1 (16.67%) Service Management
Programming Languages
1 6 (100.00%) PHP
2 4 (66.67%) Java
3 3 (50.00%) Bash Shell
3 3 (50.00%) C#
4 2 (33.33%) JavaScript
4 2 (33.33%) Perl
5 1 (16.67%) Jython
5 1 (16.67%) Python
5 1 (16.67%) Shell Script
System Software
1 2 (33.33%) Active Directory
Systems Management
1 1 (16.67%) Check_MK
1 1 (16.67%) Grafana
1 1 (16.67%) Nagios
1 1 (16.67%) Pingdom
1 1 (16.67%) Puppet
Vendors
1 3 (50.00%) Red Hat
2 1 (16.67%) Infobright
2 1 (16.67%) New Relic
2 1 (16.67%) PagerDuty