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 25 August 2016 with a comparison to the same period over the previous 2 years.

3 months to
25 Aug 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 63 81 52
Rank change year-on-year
+18 -29
Permanent jobs citing CentOS 13 1 15
As % of all permanent IT jobs located in Cardiff 1.79% 0.12% 2.23%
As % of the Operating Systems category 6.77% 0.49% 8.33%
Number of salaries quoted 13 0 15
Median salary £32,500 - £35,000
90% offered a salary of more than £28,200 - £27,500
10% offered a salary of more than £44,500 - £37,500
UK excluding London median salary £45,000 £42,500 £41,500
% change year-on-year
+5.88% +2.40%
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
192 206 180
As % of all permanent IT jobs located in Cardiff 26.45% 24.49% 26.79%
Number of salaries quoted 165 177 162
Median salary £32,500 £37,500 £33,000
Median salary % change year-on-year
-13.33% +13.63%
90% offered a salary of more than £19,500 £25,010 £24,000
10% offered a salary of more than £45,000 £40,000 £45,000
UK excluding London median salary £38,000 £37,500 £36,500
% change year-on-year
+1.33% +2.73%

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 25 August 2016.

CentOS Salary Histogram in Cardiff

CentOS
Top 30 Related IT Skills in Cardiff

For the 6 months to 25 August 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 16 (100.00%) Linux
2 10 (62.50%) Red Hat
2 10 (62.50%) Red Hat Enterprise Linux
3 8 (50.00%) Python
4 7 (43.75%) Firewall
4 7 (43.75%) VMware
4 7 (43.75%) Ubuntu
5 6 (37.50%) VMware Infrastructure
5 6 (37.50%) Amazon AWS
5 6 (37.50%) Bash Shell
6 5 (31.25%) Cisco
6 5 (31.25%) Java
7 4 (25.00%) MySQL
7 4 (25.00%) Perl
7 4 (25.00%) Unix
7 4 (25.00%) TCP/IP
7 4 (25.00%) Debian
7 4 (25.00%) Wireshark
7 4 (25.00%) Jenkins
7 4 (25.00%) Ansible
8 3 (18.75%) Opscode Chef
8 3 (18.75%) DevOps
8 3 (18.75%) Puppet
8 3 (18.75%) F5
8 3 (18.75%) OpenStack
8 3 (18.75%) Continuous Integration
8 3 (18.75%) Agile Software Development
8 3 (18.75%) Scrum
8 3 (18.75%) DNS
8 3 (18.75%) Apache

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 3 (18.75%) Apache
1 3 (18.75%) OpenStack
2 2 (12.50%) JBoss
2 2 (12.50%) Tomcat
3 1 (6.25%) Confluence
3 1 (6.25%) nginx
3 1 (6.25%) WebSphere
Cloud Services
1 6 (37.50%) Amazon AWS
2 2 (12.50%) Microsoft Azure
Communications & Networking
1 7 (43.75%) Firewall
2 4 (25.00%) TCP/IP
2 4 (25.00%) Wireshark
3 3 (18.75%) DNS
4 2 (12.50%) MPLS
4 2 (12.50%) tcpdump
4 2 (12.50%) VLAN
4 2 (12.50%) VoIP
Database & Business Intelligence
1 4 (25.00%) MySQL
2 1 (6.25%) PostgreSQL
Development Applications
1 4 (25.00%) Jenkins
2 2 (12.50%) Atlassian Bamboo
2 2 (12.50%) Cucumber
2 2 (12.50%) Hudson
2 2 (12.50%) JUnit
2 2 (12.50%) Selenium
3 1 (6.25%) Git (software)
3 1 (6.25%) JIRA
3 1 (6.25%) TeamCity
3 1 (6.25%) Vagrant
General
1 1 (6.25%) Finance
1 1 (6.25%) Pharmaceutical
Job Titles
1 5 (31.25%) Administrator
1 5 (31.25%) Systems Administrator
2 4 (25.00%) Linux Engineer
3 3 (18.75%) DevOps Engineer
4 2 (12.50%) Developer
4 2 (12.50%) Developer in Test
4 2 (12.50%) Infrastructure Engineer
4 2 (12.50%) Linux Administrator
4 2 (12.50%) Linux DevOps Engineer
4 2 (12.50%) Linux Systems Administrator
4 2 (12.50%) Linux/Unix DevOps
4 2 (12.50%) Systems Engineer
4 2 (12.50%) Test Automation Developer
4 2 (12.50%) Test Automation Engineer
4 2 (12.50%) Test Engineer
5 1 (6.25%) Integration Engineer
5 1 (6.25%) Senior Infrastructure Engineer
5 1 (6.25%) Senior Systems Engineer
5 1 (6.25%) Support Analyst
5 1 (6.25%) Technical Engineer
Libraries, Frameworks & Software Standards
1 2 (12.50%) .NET
1 2 (12.50%) ASP.NET
2 1 (6.25%) LAPP Stack
Miscellaneous
1 2 (12.50%) Public Cloud
2 1 (6.25%) Analytical Skills
Operating Systems
1 16 (100.00%) Linux
2 10 (62.50%) Red Hat Enterprise Linux
3 7 (43.75%) Ubuntu
4 4 (25.00%) Debian
4 4 (25.00%) Unix
5 2 (12.50%) Android
5 2 (12.50%) Apple iOS
5 2 (12.50%) Windows
Processes & Methodologies
1 3 (18.75%) Agile Software Development
1 3 (18.75%) Continuous Integration
1 3 (18.75%) DevOps
1 3 (18.75%) Scrum
2 2 (12.50%) BDD
2 2 (12.50%) Load Balancing
2 2 (12.50%) Network Monitoring
2 2 (12.50%) TDD
2 2 (12.50%) Test Automation
2 2 (12.50%) Validation
3 1 (6.25%) Configuration Management
3 1 (6.25%) ITIL
3 1 (6.25%) Performance Tuning
Programming Languages
1 8 (50.00%) Python
2 6 (37.50%) Bash Shell
3 5 (31.25%) Java
4 4 (25.00%) Perl
5 2 (12.50%) C#
5 2 (12.50%) C++
5 2 (12.50%) JavaScript
5 2 (12.50%) Korn
5 2 (12.50%) Objective-C
5 2 (12.50%) PHP
6 1 (6.25%) C
6 1 (6.25%) Shell Script
Qualifications
1 1 (6.25%) RHCE
Quality Assurance & Compliance
1 1 (6.25%) QA
System Software
1 6 (37.50%) VMware Infrastructure
2 2 (12.50%) iptables
2 2 (12.50%) Virtual Machines
2 2 (12.50%) VMware ESXi
3 1 (6.25%) Docker
Systems Management
1 4 (25.00%) Ansible
2 3 (18.75%) Opscode Chef
2 3 (18.75%) Puppet
3 2 (12.50%) Nagios
3 2 (12.50%) Nessus
3 2 (12.50%) Nmap
Vendors
1 10 (62.50%) Red Hat
2 7 (43.75%) VMware
3 5 (31.25%) Cisco
4 3 (18.75%) F5
5 2 (12.50%) AppDynamics
5 2 (12.50%) Brocade
5 2 (12.50%) Oracle
5 2 (12.50%) SonicWALL
6 1 (6.25%) Atlassian