Period
to 24 November 2017

The following table provides summary statistics for permanent job vacancies advertised in South Wales 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 24 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
Wales > South Wales
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 87 112 141
Rank change year-on-year +25 +29 -24
Permanent jobs citing CentOS 23 29 10
As % of all permanent IT jobs advertised in South Wales 1.60% 1.33% 0.41%
As % of the Operating Systems category 5.74% 5.61% 1.49%
Number of salaries quoted 20 26 9
South Wales median annual salary £37,500 £40,000 £40,000
Median salary % change year-on-year -6.25% - +17.65%
10th Percentile £29,325 £26,875 £36,250
90th Percentile £57,500 £47,500 £51,000
Wales median annual salary £37,500 £40,000 £40,000
% change year-on-year -6.25% - +17.65%

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 South Wales with a requirement for operating system skills.

All Operating Systems
South Wales
Permanent vacancies with a requirement for operating system skills 401 517 670
As % of all permanent IT jobs advertised in South Wales 27.94% 23.64% 27.53%
Number of salaries quoted 362 453 604
South Wales median annual salary £35,000 £36,000 £35,000
Median salary % change year-on-year -2.78% +2.86% +2.94%
10th Percentile £22,275 £21,250 £20,500
90th Percentile £50,000 £50,000 £47,500
Wales median annual salary £38,000 £35,500 £35,000
% change year-on-year +7.04% +1.43% +4.48%

CentOS
Job Vacancy Trend in South Wales

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

Job vacancy trend for CentOS in South Wales

CentOS
Salary Trend in South Wales

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

Salary trend for CentOS in South Wales

CentOS
Salary Histogram in South Wales

The salary distribution of IT jobs citing CentOS in South Wales over the 6 months to 24 November 2017.

Salary histogram for CentOS in South Wales

CentOS
Job Locations in South Wales

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the South Wales region over the 6 months to 24 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Cardiff +31 12 £35,000 +7.69%
Newport - 8 £37,500 -
Torfaen +1 2 £47,500 +11.76%
CentOS
Wales

For the 6 months to 24 November 2017, 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 South Wales region with a requirement for CentOS.

1 23 (100.00%) Linux
2 19 (82.61%) Red Hat
3 15 (65.22%) Debian
3 15 (65.22%) Ubuntu
4 12 (52.17%) Java
5 11 (47.83%) Cisco
6 10 (43.48%) DevOps
7 9 (39.13%) Amazon AWS
7 9 (39.13%) Continuous Improvement
8 7 (30.43%) Bash Shell
8 7 (30.43%) VMware Infrastructure
8 7 (30.43%) Firewall
8 7 (30.43%) VMware
8 7 (30.43%) Ansible
9 6 (26.09%) Jenkins
9 6 (26.09%) Windows Server
9 6 (26.09%) SLA
9 6 (26.09%) Citrix
9 6 (26.09%) Python
9 6 (26.09%) Perl
9 6 (26.09%) Unix
9 6 (26.09%) Windows
9 6 (26.09%) Agile Software Development
9 6 (26.09%) Cloud Computing
9 6 (26.09%) NetScaler
10 5 (21.74%) REST
10 5 (21.74%) Capacity Planning
10 5 (21.74%) MongoDB
10 5 (21.74%) Git (software)
10 5 (21.74%) Microsoft Azure

CentOS
Co-occurring IT Skills in South Wales 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 (21.74%) Elasticsearch
2 4 (17.39%) Apache
2 4 (17.39%) SharePoint
3 3 (13.04%) IIS
3 3 (13.04%) nginx
4 2 (8.70%) Apache Solr
4 2 (8.70%) Confluence
4 2 (8.70%) Tomcat
5 1 (4.35%) Exchange Server 2013
5 1 (4.35%) MS Exchange
Cloud Services
1 9 (39.13%) Amazon AWS
2 6 (26.09%) Cloud Computing
3 5 (21.74%) Microsoft Azure
4 4 (17.39%) Office 365
Communications & Networking
1 7 (30.43%) Firewall
2 6 (26.09%) NetScaler
3 4 (17.39%) VoIP
3 4 (17.39%) VPN
4 3 (13.04%) Cisco Nexus
4 3 (13.04%) IPsec
4 3 (13.04%) Network Security
4 3 (13.04%) TCP/IP
4 3 (13.04%) VLAN
4 3 (13.04%) Wi-Fi
5 2 (8.70%) DHCP
5 2 (8.70%) DNS
5 2 (8.70%) IP Telephony
5 2 (8.70%) MPLS
5 2 (8.70%) SAN
5 2 (8.70%) Unified Communications
5 2 (8.70%) Wireshark
6 1 (4.35%) LAN
6 1 (4.35%) SNMP
6 1 (4.35%) Telnet
Database & Business Intelligence
1 5 (21.74%) MongoDB
2 2 (8.70%) MySQL
2 2 (8.70%) SQL Server
2 2 (8.70%) SQL Server 2008
Development Applications
1 6 (26.09%) Jenkins
2 5 (21.74%) Git (software)
3 4 (17.39%) Ant
3 4 (17.39%) Maven
4 2 (8.70%) Atlassian Bamboo
5 1 (4.35%) Cucumber
5 1 (4.35%) GitLab
5 1 (4.35%) JUnit
5 1 (4.35%) TestLink
5 1 (4.35%) VersionOne
General
1 2 (8.70%) Law
2 1 (4.35%) Finance
Job Titles
1 10 (43.48%) DevOps Engineer
2 7 (30.43%) Linux Engineer
3 6 (26.09%) Linux DevOps Engineer
3 6 (26.09%) Linux/Unix DevOps
4 5 (21.74%) Infrastructure Engineer
4 5 (21.74%) Senior DevOps
4 5 (21.74%) Senior DevOps Engineer
5 3 (13.04%) Administrator
5 3 (13.04%) Support Engineer
5 3 (13.04%) Systems Administrator
5 3 (13.04%) Unix Administrator
5 3 (13.04%) Unix Systems Administrator
6 2 (8.70%) Cloud Engineer
6 2 (8.70%) Cloud Infrastructure Engineer
6 2 (8.70%) Senior Linux Engineer
6 2 (8.70%) Unified Communications Engineer
6 2 (8.70%) Voice Engineer
7 1 (4.35%) AIX Systems Administrator
7 1 (4.35%) Senior Test Engineer
7 1 (4.35%) Unix Linux Systems Administrator
Libraries, Frameworks & Software Standards
1 5 (21.74%) REST
1 5 (21.74%) Web Services
2 2 (8.70%) Loki
Miscellaneous
1 4 (17.39%) Digital Media
2 3 (13.04%) Clustering
2 3 (13.04%) Enterprise Storage
3 2 (8.70%) CMDB
3 2 (8.70%) Digital TV
3 2 (8.70%) Replication
3 2 (8.70%) Wiki
4 1 (4.35%) Analytical Skills
4 1 (4.35%) Data Centre
4 1 (4.35%) Linux Command Line
4 1 (4.35%) Management Information System
4 1 (4.35%) Public Cloud
4 1 (4.35%) User Experience
Operating Systems
1 23 (100.00%) Linux
2 15 (65.22%) Debian
2 15 (65.22%) Ubuntu
3 6 (26.09%) Unix
3 6 (26.09%) Windows
3 6 (26.09%) Windows Server
4 3 (13.04%) AIX
4 3 (13.04%) Red Hat Enterprise Linux
4 3 (13.04%) Windows Server 2012
5 1 (4.35%) Android
5 1 (4.35%) Apple iOS
5 1 (4.35%) Windows Server 2008
Processes & Methodologies
1 10 (43.48%) DevOps
2 9 (39.13%) Continuous Improvement
3 6 (26.09%) Agile Software Development
4 5 (21.74%) Capacity Planning
4 5 (21.74%) Continuous Delivery
5 4 (17.39%) Scrum
6 3 (13.04%) Configuration Management
6 3 (13.04%) Data Protection
6 3 (13.04%) SIEM
7 2 (8.70%) Change Management
7 2 (8.70%) Load Balancing
7 2 (8.70%) Network Monitoring
7 2 (8.70%) Software Deployment
7 2 (8.70%) Test Automation
8 1 (4.35%) Collaborative Working
8 1 (4.35%) Customer Acquisition
8 1 (4.35%) ITIL
8 1 (4.35%) Migration
8 1 (4.35%) Network Load Balancing
8 1 (4.35%) Regression Testing
Programming Languages
1 12 (52.17%) Java
2 7 (30.43%) Bash Shell
3 6 (26.09%) Perl
3 6 (26.09%) Python
4 5 (21.74%) Groovy
5 1 (4.35%) Apple Swift
5 1 (4.35%) AWK
5 1 (4.35%) C++
5 1 (4.35%) JavaScript
5 1 (4.35%) Korn
5 1 (4.35%) Objective-C
5 1 (4.35%) PHP
Qualifications
1 1 (4.35%) CCNA
1 1 (4.35%) Cisco Certification
1 1 (4.35%) ITIL Foundation Certificate
1 1 (4.35%) MCSA
1 1 (4.35%) MCSE
1 1 (4.35%) Microsoft Certification
Quality Assurance & Compliance
1 6 (26.09%) SLA
2 1 (4.35%) GDPR
2 1 (4.35%) PCI DSS
System Software
1 7 (30.43%) VMware Infrastructure
2 5 (21.74%) Docker
3 4 (17.39%) Active Directory
4 3 (13.04%) VMware ESXi
5 1 (4.35%) Hyper-V
5 1 (4.35%) KVM
5 1 (4.35%) Virtual Machines
Systems Management
1 7 (30.43%) Ansible
2 5 (21.74%) Terraform
3 3 (13.04%) SCOM
4 1 (4.35%) Nagios
4 1 (4.35%) Packer
4 1 (4.35%) ServiceCenter
Vendors
1 19 (82.61%) Red Hat
2 11 (47.83%) Cisco
3 7 (30.43%) VMware
4 6 (26.09%) Citrix
5 4 (17.39%) Oracle
6 3 (13.04%) Microsoft
6 3 (13.04%) Splunk
7 2 (8.70%) BroadSoft
7 2 (8.70%) Brocade
7 2 (8.70%) EMC
7 2 (8.70%) Nimble Storage
7 2 (8.70%) Polycom
7 2 (8.70%) SonicWALL
7 2 (8.70%) Sonus
7 2 (8.70%) Yealink
8 1 (4.35%) Dell
8 1 (4.35%) HP
8 1 (4.35%) Juniper
8 1 (4.35%) Perforce
8 1 (4.35%) SolarWinds