Period
to 22 October 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 October 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
South Wales > Cardiff
6 months to
22 Oct 2018
Same period 2017 Same period 2016
Rank 74 60 90
Rank change year-on-year -14 +30 +22
Permanent jobs citing CentOS 24 13 17
As % of all permanent IT jobs advertised in Cardiff 2.09% 1.59% 1.24%
As % of the Operating Systems category 9.20% 8.39% 4.90%
Number of salaries quoted 24 11 17
Cardiff median annual salary £45,000 £37,500 £32,500
Median salary % change year-on-year +20.00% +15.38% -23.08%
10th Percentile £33,250 £25,500 £24,250
90th Percentile £65,000 £42,500 £50,000
South Wales median annual salary £45,000 £37,500 £42,500
% change year-on-year +20.00% -11.76% +7.59%

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 261 155 347
As % of all permanent IT jobs advertised in Cardiff 22.77% 18.93% 25.40%
Number of salaries quoted 228 144 309
Cardiff median annual salary £36,000 £36,250 £35,000
Median salary % change year-on-year -0.69% +3.57% -1.41%
10th Percentile £22,000 £22,650 £21,250
90th Percentile £56,250 £53,750 £50,000
South Wales median annual salary £38,500 £34,250 £35,000
% change year-on-year +12.41% -2.14% -

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 22 October 2018.

Salary histogram for CentOS in Cardiff

For the 6 months to 22 October 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 24 (100.00%) Linux
2 20 (83.33%) VMware
3 17 (70.83%) Amazon AWS
4 16 (66.67%) VMware Infrastructure
4 16 (66.67%) Ubuntu
4 16 (66.67%) Red Hat
5 15 (62.50%) Microsoft Azure
6 13 (54.17%) Firewall
7 12 (50.00%) Ansible
8 11 (45.83%) Docker
8 11 (45.83%) DevOps
8 11 (45.83%) Wireshark
9 10 (41.67%) Bash Shell
10 9 (37.50%) Puppet
10 9 (37.50%) Red Hat Enterprise Linux
10 9 (37.50%) Google Cloud Platform
10 9 (37.50%) Opscode Chef
10 9 (37.50%) REST
10 9 (37.50%) Google
10 9 (37.50%) Citrix
10 9 (37.50%) Python
11 8 (33.33%) Web Services
11 8 (33.33%) Splunk
11 8 (33.33%) Groovy
11 8 (33.33%) Stackdriver
11 8 (33.33%) Cloud Native
11 8 (33.33%) CF BOSH
11 8 (33.33%) Site Reliability Engineering
12 7 (29.17%) Infrastructure Engineering
12 7 (29.17%) Windows

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 (20.83%) Elasticsearch
2 4 (16.67%) Apache
2 4 (16.67%) Exchange Server 2010
2 4 (16.67%) MS Exchange
3 3 (12.50%) Apache Solr
3 3 (12.50%) IIS
3 3 (12.50%) nginx
3 3 (12.50%) OpenStack
3 3 (12.50%) Skype for Business
3 3 (12.50%) Tomcat
4 1 (4.17%) Confluence
Applications
1 5 (20.83%) Microsoft Office
Cloud Services
1 17 (70.83%) Amazon AWS
2 15 (62.50%) Microsoft Azure
3 9 (37.50%) Google Cloud Platform
4 8 (33.33%) Stackdriver
5 6 (25.00%) Cloud Computing
6 4 (16.67%) Amazon CloudWatch
6 4 (16.67%) Office 365
7 1 (4.17%) Amazon EC2
7 1 (4.17%) Amazon S3
7 1 (4.17%) G Suite
7 1 (4.17%) Route 53
Communications & Networking
1 13 (54.17%) Firewall
2 11 (45.83%) Wireshark
3 7 (29.17%) VoIP
4 5 (20.83%) DNS
4 5 (20.83%) NetScaler
5 4 (16.67%) DHCP
5 4 (16.67%) IPsec
5 4 (16.67%) TCP/IP
5 4 (16.67%) VPN
6 3 (12.50%) Cisco Nexus
6 3 (12.50%) RTP
6 3 (12.50%) SAN
6 3 (12.50%) Skype
6 3 (12.50%) VLAN
7 2 (8.33%) Network Security
7 2 (8.33%) SMS
8 1 (4.17%) Cisco ASA
8 1 (4.17%) Cisco IOS
8 1 (4.17%) Cisco PIX
8 1 (4.17%) tcpdump
Database & Business Intelligence
1 5 (20.83%) MongoDB
2 3 (12.50%) MySQL
2 3 (12.50%) SQL Server
2 3 (12.50%) SQL Server 2008
3 1 (4.17%) Amazon RDS
3 1 (4.17%) PostgreSQL
3 1 (4.17%) RDBMS
3 1 (4.17%) Relational Database
Development Applications
1 8 (33.33%) CF BOSH
2 1 (4.17%) Atlassian Bamboo
2 1 (4.17%) Git (software)
2 1 (4.17%) Jenkins
2 1 (4.17%) JIRA
2 1 (4.17%) Subversion
2 1 (4.17%) TeamCity
2 1 (4.17%) Vagrant
General
1 1 (4.17%) Telecoms
Job Titles
1 13 (54.17%) Cloud Engineer
2 9 (37.50%) DevOps Engineer
3 5 (20.83%) Infrastructure Engineer
4 4 (16.67%) Automation Engineer
4 4 (16.67%) Cloud Automation Engineer
4 4 (16.67%) Site Reliability Engineer
4 4 (16.67%) Support Engineer
5 3 (12.50%) Cloud Infrastructure Engineer
5 3 (12.50%) Lead DevOps
5 3 (12.50%) Lead DevOps Engineer
5 3 (12.50%) Senior Cloud Engineer
5 3 (12.50%) Senior Infrastructure Engineer
6 2 (8.33%) Linux Engineer
6 2 (8.33%) VoIP Engineer
7 1 (4.17%) 3rd Line Support
7 1 (4.17%) 3rd Line Support Engineer
7 1 (4.17%) Developer
7 1 (4.17%) Front End Developer (Client-Side Developer)
7 1 (4.17%) IT Support
7 1 (4.17%) Senior Front-End Developer
Libraries, Frameworks & Software Standards
1 9 (37.50%) REST
2 8 (33.33%) Web Services
3 1 (4.17%) AngularJS
3 1 (4.17%) CSS
3 1 (4.17%) DOM
3 1 (4.17%) HTML
3 1 (4.17%) LAMP
3 1 (4.17%) LEMP Stack
3 1 (4.17%) SOAP
3 1 (4.17%) XML
3 1 (4.17%) XML-RPC
Miscellaneous
1 8 (33.33%) Cloud Native
2 4 (16.67%) User Experience
3 3 (12.50%) Replication
4 2 (8.33%) Clustering
4 2 (8.33%) Data Centre
5 1 (4.17%) Graphic Design
Operating Systems
1 24 (100.00%) Linux
2 16 (66.67%) Ubuntu
3 9 (37.50%) Red Hat Enterprise Linux
4 7 (29.17%) Windows
5 6 (25.00%) Debian
6 4 (16.67%) Windows Server
6 4 (16.67%) Windows Server 2008
7 3 (12.50%) SUSE
7 3 (12.50%) Windows Server 2012
8 1 (4.17%) Unix
Processes & Methodologies
1 11 (45.83%) DevOps
2 8 (33.33%) Site Reliability Engineering
3 7 (29.17%) Infrastructure Engineering
4 6 (25.00%) Continuous Improvement
4 6 (25.00%) Load Balancing
5 5 (20.83%) Capacity Planning
6 4 (16.67%) Agile Software Development
6 4 (16.67%) Application Packaging
6 4 (16.67%) Deployment Automation
6 4 (16.67%) Technical Architecture
6 4 (16.67%) Workload Management
7 3 (12.50%) Mobile Device Management
7 3 (12.50%) Root Cause Analysis
7 3 (12.50%) Software Deployment
8 2 (8.33%) SIEM
9 1 (4.17%) Customer Acquisition
9 1 (4.17%) Cybersecurity
9 1 (4.17%) Front End Development
9 1 (4.17%) Server Monitoring
9 1 (4.17%) Task Automation
Programming Languages
1 10 (41.67%) Bash Shell
2 9 (37.50%) Python
3 8 (33.33%) Groovy
4 5 (20.83%) Java
5 1 (4.17%) JavaScript
5 1 (4.17%) PHP
5 1 (4.17%) Shell Script
Quality Assurance & Compliance
1 5 (20.83%) SLA
System Software
1 16 (66.67%) VMware Infrastructure
2 11 (45.83%) Docker
3 4 (16.67%) XenApp
4 3 (12.50%) Active Directory
5 2 (8.33%) KVM
5 2 (8.33%) VMware ESXi
5 2 (8.33%) Xen
6 1 (4.17%) iptables
6 1 (4.17%) Postfix
Systems Management
1 12 (50.00%) Ansible
2 9 (37.50%) Opscode Chef
2 9 (37.50%) Puppet
3 4 (16.67%) Nagios
4 2 (8.33%) Kubernetes
4 2 (8.33%) Salt
5 1 (4.17%) Pingdom
5 1 (4.17%) Systems Management Server (SMS)
5 1 (4.17%) Terraform
Vendors
1 20 (83.33%) VMware
2 16 (66.67%) Red Hat
3 9 (37.50%) Citrix
3 9 (37.50%) Google
4 8 (33.33%) Splunk
5 6 (25.00%) Cisco
6 5 (20.83%) Microsoft
7 4 (16.67%) Apple
7 4 (16.67%) Avaya
7 4 (16.67%) Dell
7 4 (16.67%) Dell Compellent
7 4 (16.67%) EqualLogic
7 4 (16.67%) Freshdesk
7 4 (16.67%) Nexenta
8 3 (12.50%) EMC
8 3 (12.50%) Nimble Storage
9 2 (8.33%) Brocade
10 1 (4.17%) AppDynamics
10 1 (4.17%) Atlassian
10 1 (4.17%) PagerDuty