The table below looks at the statistics for CentOS skills in IT jobs advertised for the Cardiff region. Included is a guide to the salaries offered in IT jobs that have cited CentOS over the 3 months to 30 June 2016 with a comparison to the same period over the previous 2 years.

3 months to
30 Jun 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 64 71 64
Rank change year-on-year
+7 -7
Permanent jobs citing CentOS 9 6 12
As % of all permanent IT jobs located in Cardiff 1.28% 0.78% 1.75%
As % of the Operating Systems category 5.17% 3.31% 6.19%
Number of salaries quoted 9 5 11
Median salary £32,500 £40,000 £37,500
Median salary % change year-on-year
-18.75% +6.66%
UK excluding London median salary £47,500 £40,000 £37,500
% change year-on-year
+18.75% +6.66%
CentOS
South Wales

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in permanent jobs advertised in the Cardiff region.

Operating Systems Category
Cardiff
Permanent IT job ads with a match in the
Operating Systems category
174 181 194
As % of all permanent IT jobs located in Cardiff 24.68% 23.45% 28.28%
Number of salaries quoted 152 140 173
Median salary £36,477 £35,500 £33,000
Median salary % change year-on-year
+2.75% +7.57%
90% offered a salary of more than £25,000 £25,025 £24,500
10% offered a salary of more than £47,500 £42,500 £41,980
UK excluding London median salary £37,500 £37,500 £36,000
% change year-on-year
- +4.16%

CentOS
Jobs Demand Trend in Cardiff

The demand trend of job ads across the Cardiff region citing CentOS as a proportion of all IT jobs with a match in the Operating Systems category.

CentOS Jobs Demand Trend in Cardiff

CentOS
Salary Trend in Cardiff

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

CentOS Salary Trend in Cardiff

CentOS
Salary Histogram in Cardiff

This chart provides a salary histogram for IT jobs citing CentOS across the Cardiff region over the 3 months to 30 June 2016.

CentOS Salary Histogram in Cardiff

CentOS
Top 30 Related IT Skills in Cardiff

For the 6 months to 30 June 2016, 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 Cardiff region with a requirement for CentOS.

1 9 (100.00%) Linux
2 6 (66.67%) VMware
3 5 (55.56%) Red Hat
3 5 (55.56%) Firewall
3 5 (55.56%) VMware Infrastructure
3 5 (55.56%) Red Hat Enterprise Linux
4 4 (44.44%) Amazon AWS
4 4 (44.44%) Python
5 3 (33.33%) DNS
5 3 (33.33%) Cisco
5 3 (33.33%) Unix
5 3 (33.33%) F5
6 2 (22.22%) OpenStack
6 2 (22.22%) Opscode Chef
6 2 (22.22%) Bash Shell
6 2 (22.22%) tcpdump
6 2 (22.22%) Puppet
6 2 (22.22%) VMware ESXi
6 2 (22.22%) Microsoft Azure
6 2 (22.22%) iptables
6 2 (22.22%) Public Cloud
6 2 (22.22%) Ansible
6 2 (22.22%) DevOps
6 2 (22.22%) Nagios
6 2 (22.22%) Nessus
6 2 (22.22%) Nmap
6 2 (22.22%) Ubuntu
6 2 (22.22%) VLAN
6 2 (22.22%) Wireshark
6 2 (22.22%) Load Balancing

CentOS
Top Related IT Skills in Cardiff 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 2 (22.22%) Apache
1 2 (22.22%) JBoss
1 2 (22.22%) OpenStack
2 1 (11.11%) Tomcat
2 1 (11.11%) WebSphere
Cloud Services
1 4 (44.44%) Amazon AWS
2 2 (22.22%) Microsoft Azure
Communications & Networking
1 5 (55.56%) Firewall
2 3 (33.33%) DNS
3 2 (22.22%) TCP/IP
3 2 (22.22%) tcpdump
3 2 (22.22%) VLAN
3 2 (22.22%) Wireshark
Database & Business Intelligence
1 2 (22.22%) MySQL
Job Titles
1 5 (55.56%) Administrator
1 5 (55.56%) Systems Administrator
2 3 (33.33%) Linux Engineer
3 2 (22.22%) DevOps Engineer
3 2 (22.22%) Infrastructure Engineer
3 2 (22.22%) Linux Administrator
3 2 (22.22%) Linux DevOps Engineer
3 2 (22.22%) Linux Systems Administrator
3 2 (22.22%) Linux/Unix DevOps
4 1 (11.11%) Integration Engineer
4 1 (11.11%) Senior Infrastructure Engineer
4 1 (11.11%) Senior Linux Engineer
Miscellaneous
1 2 (22.22%) Public Cloud
Operating Systems
1 9 (100.00%) Linux
2 5 (55.56%) Red Hat Enterprise Linux
3 3 (33.33%) Unix
4 2 (22.22%) Debian
4 2 (22.22%) Ubuntu
Processes & Methodologies
1 2 (22.22%) DevOps
1 2 (22.22%) Load Balancing
1 2 (22.22%) Validation
2 1 (11.11%) Agile Software Development
2 1 (11.11%) Performance Tuning
2 1 (11.11%) Scrum
Programming Languages
1 4 (44.44%) Python
2 2 (22.22%) Bash Shell
2 2 (22.22%) Perl
3 1 (11.11%) C
3 1 (11.11%) Shell Script
System Software
1 5 (55.56%) VMware Infrastructure
2 2 (22.22%) iptables
2 2 (22.22%) VMware ESXi
Systems Management
1 2 (22.22%) Ansible
1 2 (22.22%) Nagios
1 2 (22.22%) Nessus
1 2 (22.22%) Nmap
1 2 (22.22%) Opscode Chef
1 2 (22.22%) Puppet
Vendors
1 6 (66.67%) VMware
2 5 (55.56%) Red Hat
3 3 (33.33%) Cisco
3 3 (33.33%) F5
4 1 (11.11%) AppDynamics