Period
to 22 May 2018

The following table provides summary statistics for permanent job vacancies advertised in Cardiff with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 6 months to 22 May 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
South Wales > Cardiff
6 months to
22 May 2018
Same period 2017 Same period 2016
Rank 63 81 106
Rank change year-on-year +18 +25 -20
Permanent jobs citing CentOS 14 13 3
As % of all permanent IT jobs advertised in Cardiff 1.62% 1.24% 0.22%
As % of the Operating Systems category 8.64% 5.56% 0.95%
Number of salaries quoted 8 9 3
Cardiff median annual salary £40,000 £35,000 £42,500
Median salary % change year-on-year +14.29% -17.65% +18.06%
10th Percentile £37,125 £22,400 £31,650
90th Percentile £48,125 £65,000 £48,750
South Wales median annual salary £40,000 £35,000 £45,000
% change year-on-year +14.29% -22.22% +21.62%

CentOS 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 Cardiff with a requirement for operating system skills.

All Operating Systems
Cardiff
Permanent vacancies with a requirement for operating system skills 162 234 316
As % of all permanent IT jobs advertised in Cardiff 18.71% 22.33% 23.15%
Number of salaries quoted 147 209 277
Cardiff median annual salary £32,500 £35,000 £36,000
Median salary % change year-on-year -7.14% -2.78% +2.86%
10th Percentile £18,750 £22,500 £21,400
90th Percentile £51,250 £56,000 £53,150
South Wales median annual salary £37,500 £35,000 £36,000
% change year-on-year +7.14% -2.78% -

CentOS
Job Vacancy Trend in Cardiff

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

Job vacancy trend for CentOS in Cardiff

CentOS
Salary Trend in Cardiff

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

Salary trend for CentOS in Cardiff

CentOS
Salary Histogram in Cardiff

The salary distribution of IT jobs citing CentOS in Cardiff over the 6 months to 22 May 2018.

Salary histogram for CentOS in Cardiff

For the 6 months to 22 May 2018, IT jobs citing CentOS 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 Cardiff region with a requirement for CentOS.

1 14 (100.00%) Linux
2 13 (92.86%) Red Hat
3 11 (78.57%) Ansible
4 10 (71.43%) DevOps
5 9 (64.29%) Unix
5 9 (64.29%) Agile Software Development
5 9 (64.29%) Java
6 8 (57.14%) Bash Shell
7 7 (50.00%) Python
8 6 (42.86%) TCP/IP
8 6 (42.86%) VMware
8 6 (42.86%) Jenkins
8 6 (42.86%) Amazon AWS
9 5 (35.71%) Red Hat Enterprise Linux
9 5 (35.71%) Git (software)
9 5 (35.71%) Terraform
9 5 (35.71%) Analytical Skills
9 5 (35.71%) Scrum
9 5 (35.71%) Maven
9 5 (35.71%) Oracle
10 4 (28.57%) J2EE
10 4 (28.57%) JavaScript
10 4 (28.57%) Ant
10 4 (28.57%) Web Services
10 4 (28.57%) JBoss
10 4 (28.57%) Groovy
10 4 (28.57%) Linux Command Line
11 3 (21.43%) Ubuntu
11 3 (21.43%) Firewall
11 3 (21.43%) Apache

CentOS
Co-occurring 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 4 (28.57%) JBoss
2 3 (21.43%) Apache
3 2 (14.29%) Tomcat
4 1 (7.14%) Confluence
4 1 (7.14%) nginx
4 1 (7.14%) OpenStack
Cloud Services
1 6 (42.86%) Amazon AWS
2 2 (14.29%) Cloud Computing
3 1 (7.14%) Amazon EC2
3 1 (7.14%) Amazon S3
3 1 (7.14%) G Suite
3 1 (7.14%) Google Cloud Platform
3 1 (7.14%) Microsoft Azure
3 1 (7.14%) Route 53
Communications & Networking
1 6 (42.86%) TCP/IP
2 3 (21.43%) DNS
2 3 (21.43%) Firewall
2 3 (21.43%) VPN
3 2 (14.29%) Cisco ASA
3 2 (14.29%) Cisco IOS
3 2 (14.29%) IPsec
3 2 (14.29%) LAN
4 1 (7.14%) Cisco Firepower
4 1 (7.14%) Cisco Nexus
4 1 (7.14%) Cisco PIX
4 1 (7.14%) DHCP
4 1 (7.14%) HTTP
4 1 (7.14%) NetScaler
4 1 (7.14%) Network Security
4 1 (7.14%) SNMP
4 1 (7.14%) Spanning Tree
4 1 (7.14%) tcpdump
4 1 (7.14%) VLAN
4 1 (7.14%) WAN
Database & Business Intelligence
1 2 (14.29%) MySQL
1 2 (14.29%) PostgreSQL
2 1 (7.14%) Amazon RDS
2 1 (7.14%) Oracle Database
2 1 (7.14%) RDBMS
2 1 (7.14%) Relational Database
2 1 (7.14%) SQL Server
Development Applications
1 6 (42.86%) Jenkins
2 5 (35.71%) Git (software)
2 5 (35.71%) Maven
3 4 (28.57%) Ant
4 1 (7.14%) Atlassian Bamboo
4 1 (7.14%) JIRA
4 1 (7.14%) Subversion
4 1 (7.14%) TeamCity
4 1 (7.14%) Vagrant
General
1 1 (7.14%) Finance
1 1 (7.14%) Pharmaceutical
Job Titles
1 10 (71.43%) DevOps Engineer
2 8 (57.14%) Linux Engineer
3 4 (28.57%) Linux DevOps Engineer
3 4 (28.57%) Linux/Unix DevOps
4 1 (7.14%) AWS Engineer
Libraries, Frameworks & Software Standards
1 4 (28.57%) J2EE
1 4 (28.57%) Web Services
2 1 (7.14%) LAMP
2 1 (7.14%) LAPP Stack
2 1 (7.14%) LDAP
2 1 (7.14%) LEMP Stack
Miscellaneous
1 5 (35.71%) Analytical Skills
2 4 (28.57%) Linux Command Line
3 1 (7.14%) Computer Science
3 1 (7.14%) Data Centre
Operating Systems
1 14 (100.00%) Linux
2 9 (64.29%) Unix
3 5 (35.71%) Red Hat Enterprise Linux
4 3 (21.43%) Ubuntu
5 1 (7.14%) Debian
Processes & Methodologies
1 10 (71.43%) DevOps
2 9 (64.29%) Agile Software Development
3 5 (35.71%) Scrum
4 3 (21.43%) Configuration Management
5 2 (14.29%) ITIL
6 1 (7.14%) Change Management
6 1 (7.14%) Continuous Deployment
6 1 (7.14%) Continuous Integration
6 1 (7.14%) Customer Acquisition
6 1 (7.14%) Data Protection
6 1 (7.14%) Deployment Automation
6 1 (7.14%) Kanban
6 1 (7.14%) Knowledge Management
6 1 (7.14%) Load Balancing
6 1 (7.14%) Migration
6 1 (7.14%) Network Load Balancing
6 1 (7.14%) Problem-Solving
6 1 (7.14%) QMS
6 1 (7.14%) Quality Management
6 1 (7.14%) Task Automation
Programming Languages
1 9 (64.29%) Java
2 8 (57.14%) Bash Shell
3 7 (50.00%) Python
4 4 (28.57%) Groovy
4 4 (28.57%) JavaScript
5 2 (14.29%) Perl
6 1 (7.14%) AWK
6 1 (7.14%) C-shell
6 1 (7.14%) PHP
6 1 (7.14%) Shell Script
6 1 (7.14%) SQL
Qualifications
1 2 (14.29%) Degree
2 1 (7.14%) AWS Certification
2 1 (7.14%) CCNA
2 1 (7.14%) Cisco Certification
2 1 (7.14%) Computer Science Degree
2 1 (7.14%) ITIL Foundation Certificate
Quality Assurance & Compliance
1 1 (7.14%) GDPR
1 1 (7.14%) PCI DSS
1 1 (7.14%) SLA
System Software
1 2 (14.29%) Docker
1 2 (14.29%) VMware Infrastructure
2 1 (7.14%) Hyper-V
2 1 (7.14%) iptables
2 1 (7.14%) KVM
2 1 (7.14%) Postfix
2 1 (7.14%) Virtual Machines
Systems Management
1 11 (78.57%) Ansible
2 5 (35.71%) Terraform
3 1 (7.14%) Opscode Chef
3 1 (7.14%) Pingdom
3 1 (7.14%) Puppet
Vendors
1 13 (92.86%) Red Hat
2 6 (42.86%) VMware
3 5 (35.71%) Oracle
4 2 (14.29%) Cisco
5 1 (7.14%) AppDynamics
5 1 (7.14%) Atlassian
5 1 (7.14%) Citrix
5 1 (7.14%) Google
5 1 (7.14%) Microsoft
5 1 (7.14%) New Relic
5 1 (7.14%) PagerDuty