Period
to 17 August 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 17 August 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
South Wales > Cardiff
6 months to
17 Aug 2018
Same period 2017 Same period 2016
Rank 77 73 95
Rank change year-on-year -4 +22 +5
Permanent jobs citing CentOS 13 15 15
As % of all permanent IT jobs advertised in Cardiff 1.24% 1.55% 1.09%
As % of the Operating Systems category 6.63% 7.28% 4.42%
Number of salaries quoted 12 9 15
Cardiff median annual salary £44,000 £32,500 £32,500
Median salary % change year-on-year +35.38% - -12.16%
10th Percentile £37,500 £21,850 £27,550
90th Percentile £65,000 £56,264 £48,750
South Wales median annual salary £47,500 £37,500 £38,750
% change year-on-year +26.67% -3.23% +1.31%

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 196 206 339
As % of all permanent IT jobs advertised in Cardiff 18.63% 21.26% 24.55%
Number of salaries quoted 177 191 295
Cardiff median annual salary £32,500 £35,500 £37,500
Median salary % change year-on-year -8.45% -5.33% +7.14%
10th Percentile £21,000 £22,500 £22,000
90th Percentile £52,500 £60,000 £52,500
South Wales median annual salary £39,000 £35,000 £36,477
% change year-on-year +11.43% -4.05% +1.33%

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 17 August 2018.

Salary histogram for CentOS in Cardiff

For the 6 months to 17 August 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 13 (100.00%) Linux
2 12 (92.31%) Red Hat
3 11 (84.62%) Ansible
4 10 (76.92%) DevOps
5 8 (61.54%) Docker
5 8 (61.54%) VMware
5 8 (61.54%) Firewall
6 7 (53.85%) Python
6 7 (53.85%) Wireshark
6 7 (53.85%) VMware Infrastructure
6 7 (53.85%) Amazon AWS
6 7 (53.85%) Bash Shell
7 6 (46.15%) Red Hat Enterprise Linux
7 6 (46.15%) Ubuntu
8 5 (38.46%) Google
8 5 (38.46%) Groovy
8 5 (38.46%) Web Services
8 5 (38.46%) Puppet
8 5 (38.46%) Opscode Chef
8 5 (38.46%) Google Cloud Platform
9 4 (30.77%) Stackdriver
9 4 (30.77%) Microsoft Azure
9 4 (30.77%) Cloud Native
9 4 (30.77%) CF BOSH
9 4 (30.77%) Site Reliability Engineering
9 4 (30.77%) REST
9 4 (30.77%) Splunk
9 4 (30.77%) Jenkins
9 4 (30.77%) Java
9 4 (30.77%) Unix

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 3 (23.08%) OpenStack
2 2 (15.38%) Apache
3 1 (7.69%) Confluence
3 1 (7.69%) JBoss
3 1 (7.69%) nginx
3 1 (7.69%) Tomcat
Applications
1 1 (7.69%) Microsoft Office
Cloud Services
1 7 (53.85%) Amazon AWS
2 5 (38.46%) Google Cloud Platform
3 4 (30.77%) Microsoft Azure
3 4 (30.77%) Stackdriver
4 1 (7.69%) Amazon EC2
4 1 (7.69%) Amazon S3
4 1 (7.69%) Cloud Computing
4 1 (7.69%) G Suite
4 1 (7.69%) Route 53
Communications & Networking
1 8 (61.54%) Firewall
2 7 (53.85%) Wireshark
3 3 (23.08%) RTP
3 3 (23.08%) VoIP
4 2 (15.38%) DNS
4 2 (15.38%) SMS
4 2 (15.38%) TCP/IP
4 2 (15.38%) VPN
5 1 (7.69%) Cisco ASA
5 1 (7.69%) Cisco IOS
5 1 (7.69%) Cisco PIX
5 1 (7.69%) HTTP
5 1 (7.69%) IPsec
5 1 (7.69%) LAN
5 1 (7.69%) Network Security
5 1 (7.69%) SSL
5 1 (7.69%) tcpdump
5 1 (7.69%) WAN
Database & Business Intelligence
1 2 (15.38%) MySQL
1 2 (15.38%) PostgreSQL
2 1 (7.69%) Amazon RDS
2 1 (7.69%) Oracle Database
2 1 (7.69%) RDBMS
2 1 (7.69%) Relational Database
2 1 (7.69%) SQL Server
Development Applications
1 4 (30.77%) CF BOSH
1 4 (30.77%) Jenkins
2 3 (23.08%) Git (software)
2 3 (23.08%) Maven
3 1 (7.69%) Ant
3 1 (7.69%) Atlassian Bamboo
3 1 (7.69%) JIRA
3 1 (7.69%) Subversion
3 1 (7.69%) TeamCity
3 1 (7.69%) Vagrant
General
1 1 (7.69%) Pharmaceutical
1 1 (7.69%) Telecoms
Job Titles
1 8 (61.54%) DevOps Engineer
2 4 (30.77%) Automation Engineer
2 4 (30.77%) Cloud Automation Engineer
2 4 (30.77%) Cloud Engineer
2 4 (30.77%) Linux Engineer
2 4 (30.77%) Site Reliability Engineer
3 2 (15.38%) Infrastructure Engineer
3 2 (15.38%) Linux DevOps Engineer
3 2 (15.38%) Linux/Unix DevOps
3 2 (15.38%) VoIP Engineer
4 1 (7.69%) AWS Engineer
4 1 (7.69%) IT Engineer
4 1 (7.69%) IT Support
4 1 (7.69%) IT Support Engineer
4 1 (7.69%) Support Engineer
Libraries, Frameworks & Software Standards
1 5 (38.46%) Web Services
2 4 (30.77%) REST
3 1 (7.69%) J2EE
3 1 (7.69%) LAMP
3 1 (7.69%) LAPP Stack
3 1 (7.69%) LEMP Stack
Miscellaneous
1 4 (30.77%) Cloud Native
2 2 (15.38%) Analytical Skills
2 2 (15.38%) Linux Command Line
3 1 (7.69%) Computer Science
Operating Systems
1 13 (100.00%) Linux
2 6 (46.15%) Red Hat Enterprise Linux
2 6 (46.15%) Ubuntu
3 4 (30.77%) Unix
4 3 (23.08%) SUSE
Processes & Methodologies
1 10 (76.92%) DevOps
2 4 (30.77%) Agile Software Development
2 4 (30.77%) Site Reliability Engineering
3 3 (23.08%) Infrastructure Engineering
3 3 (23.08%) Load Balancing
4 2 (15.38%) Configuration Management
4 2 (15.38%) Scrum
5 1 (7.69%) Change Management
5 1 (7.69%) Continuous Deployment
5 1 (7.69%) Functional Testing
5 1 (7.69%) High Availability
5 1 (7.69%) ITIL
5 1 (7.69%) Kanban
5 1 (7.69%) Non-Functional Testing
5 1 (7.69%) Problem-Solving
5 1 (7.69%) QMS
5 1 (7.69%) Quality Management
5 1 (7.69%) Server Monitoring
5 1 (7.69%) Task Automation
Programming Languages
1 7 (53.85%) Bash Shell
1 7 (53.85%) Python
2 5 (38.46%) Groovy
3 4 (30.77%) Java
4 1 (7.69%) C-shell
4 1 (7.69%) JavaScript
4 1 (7.69%) Perl
4 1 (7.69%) Shell Script
Qualifications
1 1 (7.69%) AWS Certification
1 1 (7.69%) Computer Science Degree
1 1 (7.69%) Degree
System Software
1 8 (61.54%) Docker
2 7 (53.85%) VMware Infrastructure
3 2 (15.38%) KVM
3 2 (15.38%) Xen
4 1 (7.69%) iptables
4 1 (7.69%) Postfix
Systems Management
1 11 (84.62%) Ansible
2 5 (38.46%) Opscode Chef
2 5 (38.46%) Puppet
3 3 (23.08%) Terraform
4 2 (15.38%) Kubernetes
4 2 (15.38%) Salt
5 1 (7.69%) Pingdom
5 1 (7.69%) Systems Management Server (SMS)
Vendors
1 12 (92.31%) Red Hat
2 8 (61.54%) VMware
3 5 (38.46%) Google
4 4 (30.77%) Splunk
5 2 (15.38%) Brocade
5 2 (15.38%) Oracle
6 1 (7.69%) AppDynamics
6 1 (7.69%) Atlassian
6 1 (7.69%) Cisco
6 1 (7.69%) Microsoft
6 1 (7.69%) New Relic
6 1 (7.69%) PagerDuty