The following table provides summary statistics for permanent job vacancies advertised in Windsor 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 28 June 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
Berkshire / Windsor
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 14 5 -
Rank change year-on-year -9 -  
Permanent jobs citing CentOS 10 16 0
As % of all permanent IT jobs advertised in Windsor 13.33% 28.57% -
As % of the Operating Systems category 32.26% 57.14% -
Number of salaries quoted 10 16 0
Median salary £48,750 £47,500 -
Median salary % change year-on-year +2.63% -  
UK excluding London median salary £45,000 £47,500 £40,000
% change year-on-year -5.26% +18.75%  

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 Windsor with a requirement for operating system skills.

Operating System Skills
Windsor
Permanent job vacancies with a requirement for operating system skills 31 28 16
As % of all permanent IT job vacancies advertised in Windsor 41.33% 50.00% 20.25%
Number of salaries quoted 61 86 40
Median salary £45,000 £47,500 £33,000
Median salary % change year-on-year -5.26% +43.93%  
90% offered a salary of more than £36,750 £36,250 £25,750
10% offered a salary of more than £52,500 £57,500 £68,750
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Windsor

Job postings citing CentOS as a percentage of all IT jobs advertised in Windsor.

Job vacancy trend for CentOS in Windsor

CentOS
Salary Trend in Windsor

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

Salary trend for CentOS in Windsor

CentOS
Salary Histogram in Windsor

The salary distribution of IT jobs citing CentOS in Windsor over the 3 months to 28 June 2017.

Salary histogram for CentOS in Windsor

For the 6 months to 28 June 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 Windsor region with a requirement for CentOS.

1 16 (100.00%) Linux
2 15 (93.75%) Puppet
3 10 (62.50%) Bash Shell
4 9 (56.25%) Opscode Chef
4 9 (56.25%) Git (software)
4 9 (56.25%) MySQL
4 9 (56.25%) Red Hat
5 8 (50.00%) DevOps
6 6 (37.50%) EMC VNX
6 6 (37.50%) vCenter Server
6 6 (37.50%) Red Hat Enterprise Linux
6 6 (37.50%) Ruby
6 6 (37.50%) vSphere
6 6 (37.50%) EMC
6 6 (37.50%) Cisco
6 6 (37.50%) Replication
6 6 (37.50%) VMware
7 5 (31.25%) Service Management
8 4 (25.00%) Python
8 4 (25.00%) nginx
9 3 (18.75%) Ansible
9 3 (18.75%) Docker
9 3 (18.75%) zsh
9 3 (18.75%) logstash
9 3 (18.75%) GitLab
9 3 (18.75%) Data Centre
9 3 (18.75%) HTML5
9 3 (18.75%) ES6
9 3 (18.75%) Virtual Machines
9 3 (18.75%) Hyper-V

CentOS
Co-occurring IT Skills in Windsor 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 (25.00%) nginx
2 3 (18.75%) Apache
3 1 (6.25%) JBoss
3 1 (6.25%) Tomcat
Cloud Services
1 1 (6.25%) SaaS
Communications & Networking
1 1 (6.25%) DNS
1 1 (6.25%) SSH
Database & Business Intelligence
1 9 (56.25%) MySQL
2 3 (18.75%) Redis
Development Applications
1 9 (56.25%) Git (software)
2 3 (18.75%) GitLab
General
1 1 (6.25%) Advertising
Job Titles
1 12 (75.00%) Administrator
1 12 (75.00%) Systems Administrator
2 9 (56.25%) Linux Administrator
2 9 (56.25%) Linux Systems Administrator
3 6 (37.50%) Senior Systems Administrator
4 4 (25.00%) Cisco Administrator
4 4 (25.00%) Senior Cisco Administrator
4 4 (25.00%) Senior Linux Administrator
4 4 (25.00%) Senior Linux Systems Administrator
4 4 (25.00%) Senior VMWare Administrator
4 4 (25.00%) VMWare Administrator
5 3 (18.75%) DevOps Engineer
5 3 (18.75%) Linux Scripter
6 1 (6.25%) Build Engineer
6 1 (6.25%) Linux Engineer
6 1 (6.25%) Senior DevOps
6 1 (6.25%) Site Engineer
6 1 (6.25%) Unix Administrator
6 1 (6.25%) Unix Linux Systems Administrator
6 1 (6.25%) Unix Systems Administrator
Libraries, Frameworks & Software Standards
1 3 (18.75%) AngularJS
1 3 (18.75%) HTML
1 3 (18.75%) HTML5
1 3 (18.75%) Node.js
Miscellaneous
1 6 (37.50%) EMC VNX
1 6 (37.50%) Replication
2 3 (18.75%) Data Centre
Operating Systems
1 16 (100.00%) Linux
2 6 (37.50%) Red Hat Enterprise Linux
3 1 (6.25%) Debian
3 1 (6.25%) Unix
3 1 (6.25%) Windows
Processes & Methodologies
1 8 (50.00%) DevOps
2 5 (31.25%) Service Management
3 3 (18.75%) Configuration Management
3 3 (18.75%) Migration
4 1 (6.25%) Agile Software Development
4 1 (6.25%) Scrum
Programming Languages
1 10 (62.50%) Bash Shell
2 6 (37.50%) Ruby
3 4 (25.00%) Python
4 3 (18.75%) ES6
4 3 (18.75%) PHP
5 1 (6.25%) Java
5 1 (6.25%) Perl
System Software
1 6 (37.50%) vSphere
2 3 (18.75%) Docker
2 3 (18.75%) Hyper-V
2 3 (18.75%) Virtual Machines
2 3 (18.75%) zsh
3 1 (6.25%) Active Directory
3 1 (6.25%) Postfix
3 1 (6.25%) Squid
Systems Management
1 15 (93.75%) Puppet
2 9 (56.25%) Opscode Chef
3 6 (37.50%) vCenter Server
4 3 (18.75%) Ansible
4 3 (18.75%) logstash
4 3 (18.75%) ZABBIX
Vendors
1 9 (56.25%) Red Hat
2 6 (37.50%) Cisco
2 6 (37.50%) EMC
2 6 (37.50%) VMware