Period
to 24 November 2017

The following table provides summary statistics for permanent job vacancies advertised in 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
UK > Wales
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 108 128 141
Rank change year-on-year +20 +13 -18
Permanent jobs citing CentOS 29 29 15
As % of all permanent IT jobs advertised in Wales 1.40% 1.10% 0.55%
As % of the Operating Systems category 5.31% 4.73% 2.05%
Number of salaries quoted 24 26 9
Wales median annual salary £37,500 £40,000 £40,000
Median salary % change year-on-year -6.25% - +17.65%
10th Percentile £29,750 £26,875 £36,250
90th Percentile £57,500 £47,500 £51,000
UK median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% +5.56%

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 Wales with a requirement for operating system skills.

All Operating Systems
Wales
Permanent vacancies with a requirement for operating system skills 546 613 731
As % of all permanent IT jobs advertised in Wales 26.29% 23.18% 26.66%
Number of salaries quoted 493 530 651
Wales median annual salary £38,000 £35,500 £35,000
Median salary % change year-on-year +7.04% +1.43% +4.48%
10th Percentile £22,500 £21,250 £20,500
90th Percentile £54,844 £48,750 £48,250
UK median annual salary £45,000 £45,000 £43,500
% change year-on-year - +3.45% +3.57%

CentOS
Job Vacancy Trend in Wales

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

Job vacancy trend for CentOS in Wales

CentOS
Salary Trend in Wales

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

Salary trend for CentOS in Wales

CentOS
Salary Histogram in Wales

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

Salary histogram for CentOS in Wales

CentOS
Job Locations in Wales

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the 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
South Wales +25 23 £37,500 -6.25% 1
West Wales - 6 £40,000 -
CentOS
UK

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 Wales region with a requirement for CentOS.

1 29 (100.00%) Linux
2 23 (79.31%) Red Hat
3 15 (51.72%) Debian
3 15 (51.72%) Ubuntu
4 13 (44.83%) Cisco
5 12 (41.38%) Java
5 12 (41.38%) VMware
5 12 (41.38%) DevOps
6 11 (37.93%) Amazon AWS
7 10 (34.48%) VMware Infrastructure
7 10 (34.48%) Windows
7 10 (34.48%) Firewall
7 10 (34.48%) Windows Server
8 9 (31.03%) Continuous Improvement
9 8 (27.59%) Red Hat Enterprise Linux
9 8 (27.59%) Citrix
9 8 (27.59%) Perl
9 8 (27.59%) Python
10 7 (24.14%) DHCP
10 7 (24.14%) IIS
10 7 (24.14%) Microsoft
10 7 (24.14%) Bash Shell
10 7 (24.14%) Microsoft Azure
10 7 (24.14%) VMware ESXi
10 7 (24.14%) Ansible
11 6 (20.69%) NetScaler
11 6 (20.69%) Jenkins
11 6 (20.69%) Terraform
11 6 (20.69%) Cloud Computing
11 6 (20.69%) Agile Software Development

CentOS
Co-occurring IT Skills in 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 7 (24.14%) IIS
2 5 (17.24%) Apache
2 5 (17.24%) Elasticsearch
3 4 (13.79%) nginx
3 4 (13.79%) SharePoint
4 2 (6.90%) Apache Solr
4 2 (6.90%) Confluence
4 2 (6.90%) Tomcat
5 1 (3.45%) Exchange Server 2013
5 1 (3.45%) MS Exchange
Cloud Services
1 11 (37.93%) Amazon AWS
2 7 (24.14%) Microsoft Azure
3 6 (20.69%) Cloud Computing
4 4 (13.79%) Office 365
5 2 (6.90%) Mimecast
5 2 (6.90%) SaaS
Communications & Networking
1 10 (34.48%) Firewall
2 7 (24.14%) DHCP
3 6 (20.69%) DNS
3 6 (20.69%) NetScaler
4 5 (17.24%) Cisco Nexus
4 5 (17.24%) TCP/IP
5 4 (13.79%) IP Telephony
5 4 (13.79%) VLAN
5 4 (13.79%) VoIP
5 4 (13.79%) VPN
6 3 (10.34%) Cisco ASA
6 3 (10.34%) IPsec
6 3 (10.34%) Network Security
6 3 (10.34%) Wi-Fi
7 2 (6.90%) MPLS
7 2 (6.90%) SAN
7 2 (6.90%) Unified Communications
7 2 (6.90%) Wireshark
8 1 (3.45%) PuTTY
8 1 (3.45%) Spanning Tree
Database & Business Intelligence
1 5 (17.24%) MongoDB
2 2 (6.90%) MySQL
2 2 (6.90%) SQL Server
2 2 (6.90%) SQL Server 2008
Development Applications
1 6 (20.69%) Jenkins
2 5 (17.24%) Git (software)
3 4 (13.79%) Ant
3 4 (13.79%) Maven
4 2 (6.90%) Atlassian Bamboo
5 1 (3.45%) Cucumber
5 1 (3.45%) GitLab
5 1 (3.45%) JUnit
5 1 (3.45%) TestLink
5 1 (3.45%) VersionOne
General
1 2 (6.90%) Law
2 1 (3.45%) Finance
Job Titles
1 10 (34.48%) DevOps Engineer
2 9 (31.03%) Infrastructure Engineer
2 9 (31.03%) Linux Engineer
3 6 (20.69%) Linux DevOps Engineer
3 6 (20.69%) Linux/Unix DevOps
4 5 (17.24%) Administrator
4 5 (17.24%) Senior DevOps
4 5 (17.24%) Senior DevOps Engineer
4 5 (17.24%) Systems Administrator
5 4 (13.79%) Senior Infrastructure Engineer
5 4 (13.79%) Senior Linux Engineer
6 3 (10.34%) Linux Administrator
6 3 (10.34%) Linux Systems Administrator
6 3 (10.34%) Support Engineer
6 3 (10.34%) Unix Administrator
6 3 (10.34%) Unix Systems Administrator
7 2 (6.90%) Cloud Engineer
7 2 (6.90%) Cloud Infrastructure Engineer
7 2 (6.90%) Unified Communications Engineer
7 2 (6.90%) Voice Engineer
Libraries, Frameworks & Software Standards
1 5 (17.24%) REST
1 5 (17.24%) Web Services
2 2 (6.90%) Loki
Miscellaneous
1 4 (13.79%) Digital Media
2 3 (10.34%) Clustering
2 3 (10.34%) Data Centre
2 3 (10.34%) Enterprise Storage
2 3 (10.34%) Linux Command Line
2 3 (10.34%) Management Information System
3 2 (6.90%) CMDB
3 2 (6.90%) Digital TV
3 2 (6.90%) Replication
3 2 (6.90%) Wiki
4 1 (3.45%) Analytical Skills
4 1 (3.45%) PMI
4 1 (3.45%) Public Cloud
4 1 (3.45%) User Experience
Operating Systems
1 29 (100.00%) Linux
2 15 (51.72%) Debian
2 15 (51.72%) Ubuntu
3 10 (34.48%) Windows
3 10 (34.48%) Windows Server
4 8 (27.59%) Red Hat Enterprise Linux
5 6 (20.69%) Unix
6 3 (10.34%) AIX
6 3 (10.34%) Windows Server 2012
7 1 (3.45%) Android
7 1 (3.45%) Apple iOS
7 1 (3.45%) Windows Server 2008
Processes & Methodologies
1 12 (41.38%) DevOps
2 9 (31.03%) Continuous Improvement
3 6 (20.69%) Agile Software Development
4 5 (17.24%) Capacity Management
4 5 (17.24%) Capacity Planning
4 5 (17.24%) Continuous Delivery
4 5 (17.24%) Problem Management
5 4 (13.79%) Configuration Management
5 4 (13.79%) Disaster Recovery
5 4 (13.79%) Incident Management
5 4 (13.79%) Scrum
6 3 (10.34%) Data Protection
6 3 (10.34%) Migration
6 3 (10.34%) SIEM
7 2 (6.90%) Application Performance Management
7 2 (6.90%) Email Management
7 2 (6.90%) Infrastructure Monitoring
7 2 (6.90%) Network Monitoring
7 2 (6.90%) Software Deployment
7 2 (6.90%) Test Automation
Programming Languages
1 12 (41.38%) Java
2 8 (27.59%) Perl
2 8 (27.59%) Python
3 7 (24.14%) Bash Shell
4 5 (17.24%) Groovy
5 2 (6.90%) Ruby
6 1 (3.45%) Apple Swift
6 1 (3.45%) AWK
6 1 (3.45%) C
6 1 (3.45%) C++
6 1 (3.45%) JavaScript
6 1 (3.45%) Korn
6 1 (3.45%) Objective-C
6 1 (3.45%) PHP
6 1 (3.45%) Shell Script
Qualifications
1 3 (10.34%) MCSA
1 3 (10.34%) Microsoft Certification
2 1 (3.45%) CCNA
2 1 (3.45%) Cisco Certification
2 1 (3.45%) ITIL Foundation Certificate
2 1 (3.45%) MCSE
2 1 (3.45%) PMI Certification
Quality Assurance & Compliance
1 6 (20.69%) SLA
2 1 (3.45%) GDPR
2 1 (3.45%) PCI DSS
System Software
1 10 (34.48%) VMware Infrastructure
2 7 (24.14%) VMware ESXi
3 6 (20.69%) Active Directory
4 5 (17.24%) Docker
5 3 (10.34%) Hyper-V
6 2 (6.90%) XenApp
6 2 (6.90%) XenDesktop
7 1 (3.45%) KVM
7 1 (3.45%) Snort
7 1 (3.45%) Virtual Machines
Systems Management
1 7 (24.14%) Ansible
2 6 (20.69%) Terraform
3 3 (10.34%) SCOM
4 2 (6.90%) Graylog
4 2 (6.90%) logstash
4 2 (6.90%) Nagios
5 1 (3.45%) HAProxy
5 1 (3.45%) Packer
5 1 (3.45%) Puppet
5 1 (3.45%) Salt
5 1 (3.45%) ServiceCenter
Vendors
1 23 (79.31%) Red Hat
2 13 (44.83%) Cisco
3 12 (41.38%) VMware
4 8 (27.59%) Citrix
5 7 (24.14%) Microsoft
6 5 (17.24%) Splunk
7 4 (13.79%) Oracle
8 2 (6.90%) AppDynamics
8 2 (6.90%) Avaya
8 2 (6.90%) BroadSoft
8 2 (6.90%) Brocade
8 2 (6.90%) Clearswift
8 2 (6.90%) EMC
8 2 (6.90%) F5
8 2 (6.90%) Nimble Storage
8 2 (6.90%) Polycom
8 2 (6.90%) SonicWALL
8 2 (6.90%) Sonus
8 2 (6.90%) Yealink
9 1 (3.45%) SolarWinds