Period
to 15 December 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 15 December 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
South Wales > Cardiff
6 months to
15 Dec 2018
Same period 2017 Same period 2016
Rank 67 71 96
Rank change year-on-year +4 +25 +21
Permanent jobs citing CentOS 25 12 14
As % of all permanent IT jobs advertised in Cardiff 2.28% 1.48% 1.04%
As % of the Operating Systems category 10.25% 7.64% 4.23%
Number of salaries quoted 25 10 14
Cardiff median annual salary £45,000 £35,000 £32,500
Median salary % change year-on-year +28.57% +7.69% -31.58%
10th Percentile £25,000 £24,875 £22,750
90th Percentile £65,000 £40,700 £51,500
South Wales median annual salary £45,000 £37,500 £40,000
% change year-on-year +20.00% -6.25% -

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 244 157 331
As % of all permanent IT jobs advertised in Cardiff 22.28% 19.38% 24.61%
Number of salaries quoted 211 143 301
Cardiff median annual salary £36,000 £35,000 £35,000
Median salary % change year-on-year +2.86% - -2.78%
10th Percentile £22,000 £22,500 £21,250
90th Percentile £57,500 £50,000 £50,000
South Wales median annual salary £37,500 £35,000 £35,000
% change year-on-year +7.14% - -

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 15 December 2018.

Salary histogram for CentOS in Cardiff

For the 6 months to 15 December 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 25 (100.00%) Linux
2 18 (72.00%) Red Hat
3 17 (68.00%) VMware
4 15 (60.00%) Microsoft Azure
4 15 (60.00%) Amazon AWS
5 14 (56.00%) Ubuntu
6 13 (52.00%) Wireshark
6 13 (52.00%) VMware Infrastructure
7 11 (44.00%) Firewall
8 10 (40.00%) VoIP
9 9 (36.00%) SLA
9 9 (36.00%) Microsoft
9 9 (36.00%) Citrix
9 9 (36.00%) Microsoft Office
9 9 (36.00%) DevOps
9 9 (36.00%) REST
9 9 (36.00%) Ansible
10 8 (32.00%) Docker
10 8 (32.00%) Root Cause Analysis
10 8 (32.00%) Splunk
10 8 (32.00%) Bash Shell
10 8 (32.00%) Puppet
10 8 (32.00%) Red Hat Enterprise Linux
10 8 (32.00%) Groovy
10 8 (32.00%) Google Cloud Platform
10 8 (32.00%) Stackdriver
10 8 (32.00%) Cloud Native
10 8 (32.00%) CF BOSH
10 8 (32.00%) Site Reliability Engineering
10 8 (32.00%) Opscode Chef

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 5 (20.00%) Elasticsearch
2 4 (16.00%) Exchange Server 2010
2 4 (16.00%) MS Exchange
3 3 (12.00%) Apache Solr
3 3 (12.00%) IIS
3 3 (12.00%) Skype for Business
3 3 (12.00%) Tomcat
4 2 (8.00%) Apache
4 2 (8.00%) nginx
Applications
1 9 (36.00%) Microsoft Office
Cloud Services
1 15 (60.00%) Amazon AWS
1 15 (60.00%) Microsoft Azure
2 8 (32.00%) Google Cloud Platform
2 8 (32.00%) Stackdriver
3 5 (20.00%) Cloud Computing
4 4 (16.00%) Amazon CloudWatch
4 4 (16.00%) Office 365
Communications & Networking
1 13 (52.00%) Wireshark
2 11 (44.00%) Firewall
3 10 (40.00%) VoIP
4 8 (32.00%) TCP/IP
5 6 (24.00%) RTP
6 5 (20.00%) NetScaler
7 4 (16.00%) DHCP
7 4 (16.00%) DNS
7 4 (16.00%) PBX
7 4 (16.00%) VLAN
8 3 (12.00%) Cisco Nexus
8 3 (12.00%) IPsec
8 3 (12.00%) SAN
8 3 (12.00%) Skype
8 3 (12.00%) VPN
9 2 (8.00%) Network Security
10 1 (4.00%) MPLS
Database & Business Intelligence
1 5 (20.00%) MongoDB
2 3 (12.00%) SQL Server
2 3 (12.00%) SQL Server 2008
3 1 (4.00%) MySQL
Development Applications
1 8 (32.00%) CF BOSH
General
1 1 (4.00%) Telecoms
Job Titles
1 13 (52.00%) Cloud Engineer
2 9 (36.00%) DevOps Engineer
3 8 (32.00%) Support Engineer
4 5 (20.00%) IT Engineer
4 5 (20.00%) IT Support
4 5 (20.00%) IT Support Engineer
5 4 (16.00%) Automation Engineer
5 4 (16.00%) Cloud Automation Engineer
5 4 (16.00%) Infrastructure Engineer
5 4 (16.00%) Site Reliability Engineer
6 3 (12.00%) Cloud Infrastructure Engineer
6 3 (12.00%) Lead DevOps
6 3 (12.00%) Lead DevOps Engineer
6 3 (12.00%) Senior Cloud Engineer
6 3 (12.00%) Senior Infrastructure Engineer
7 1 (4.00%) 3rd Line Engineer
7 1 (4.00%) Front End Developer (Client-Side Developer)
7 1 (4.00%) Linux Infrastructure Engineer
7 1 (4.00%) Senior Front-End Developer
7 1 (4.00%) VoIP Engineer
Libraries, Frameworks & Software Standards
1 9 (36.00%) REST
2 8 (32.00%) Web Services
3 1 (4.00%) AngularJS
3 1 (4.00%) CSS
3 1 (4.00%) DOM
3 1 (4.00%) HTML
3 1 (4.00%) SOAP
3 1 (4.00%) XML
3 1 (4.00%) XML-RPC
Miscellaneous
1 8 (32.00%) Cloud Native
2 4 (16.00%) Self-Motivation
2 4 (16.00%) User Experience
3 3 (12.00%) Replication
4 2 (8.00%) Clustering
4 2 (8.00%) Data Centre
5 1 (4.00%) Graphic Design
Operating Systems
1 25 (100.00%) Linux
2 14 (56.00%) Ubuntu
3 8 (32.00%) Red Hat Enterprise Linux
4 7 (28.00%) Windows
5 6 (24.00%) Debian
5 6 (24.00%) SUSE
6 4 (16.00%) Windows Server
6 4 (16.00%) Windows Server 2008
7 3 (12.00%) Windows Server 2012
Processes & Methodologies
1 9 (36.00%) DevOps
2 8 (32.00%) Root Cause Analysis
2 8 (32.00%) Site Reliability Engineering
3 6 (24.00%) Continuous Improvement
3 6 (24.00%) Infrastructure Engineering
4 5 (20.00%) Capacity Planning
5 4 (16.00%) Agile Software Development
5 4 (16.00%) Application Packaging
5 4 (16.00%) Deployment Automation
5 4 (16.00%) Problem-Solving
5 4 (16.00%) Technical Architecture
5 4 (16.00%) Workload Management
6 3 (12.00%) Load Balancing
6 3 (12.00%) Mobile Device Management
6 3 (12.00%) Software Deployment
7 2 (8.00%) SIEM
8 1 (4.00%) Continuous Integration
8 1 (4.00%) Customer Acquisition
8 1 (4.00%) Cybersecurity
8 1 (4.00%) Front End Development
Programming Languages
1 8 (32.00%) Bash Shell
1 8 (32.00%) Groovy
1 8 (32.00%) Python
2 5 (20.00%) Java
3 1 (4.00%) JavaScript
3 1 (4.00%) PHP
Quality Assurance & Compliance
1 9 (36.00%) SLA
System Software
1 13 (52.00%) VMware Infrastructure
2 8 (32.00%) Docker
3 4 (16.00%) XenApp
4 3 (12.00%) Active Directory
5 2 (8.00%) VMware ESXi
Systems Management
1 9 (36.00%) Ansible
2 8 (32.00%) Opscode Chef
2 8 (32.00%) Puppet
3 4 (16.00%) Nagios
4 1 (4.00%) Systems Management Server (SMS)
4 1 (4.00%) Terraform
Vendors
1 18 (72.00%) Red Hat
2 17 (68.00%) VMware
3 9 (36.00%) Citrix
3 9 (36.00%) Microsoft
4 8 (32.00%) Google
4 8 (32.00%) Splunk
5 5 (20.00%) Cisco
6 4 (16.00%) Apple
6 4 (16.00%) Avaya
6 4 (16.00%) Dell
6 4 (16.00%) Dell Compellent
6 4 (16.00%) EqualLogic
6 4 (16.00%) Freshdesk
6 4 (16.00%) Nexenta
7 3 (12.00%) EMC
7 3 (12.00%) Nimble Storage