The following table provides summary statistics for permanent job vacancies advertised in the East Midlands with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 3 months to 26 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
26 Mar 2017
Same period 2016 Same period 2015
CentOS Linux
England / East Midlands
Rank 146 157 162
Rank change year-on-year +11 +5  
Permanent jobs citing CentOS 15 11 21
As % of all permanent IT jobs advertised in the East Midlands 0.52% 0.35% 0.63%
As % of the Operating Systems category 2.54% 1.24% 2.49%
Number of salaries quoted 9 11 21
Median salary £31,500 £32,500 £35,000
Median salary % change year-on-year -3.07% -7.14%  
90% offered a salary of more than £26,600 £21,500 £30,000
10% offered a salary of more than £55,840 £40,000 £40,000
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year - +5.88%  

CentOS is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the East Midlands with a requirement for operating system skills.

Operating System Skills
East Midlands
Permanent job vacancies with a requirement for operating system skills 591 884 843
As % of all permanent IT job vacancies advertised in the East Midlands 20.40% 27.80% 25.47%
Number of salaries quoted 462 660 722
Median salary £35,000 £37,500 £34,000
Median salary % change year-on-year -6.66% +10.29%  
90% offered a salary of more than £21,000 £22,500 £21,500
10% offered a salary of more than £48,840 £47,500 £50,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in the East Midlands

The job posting trend of jobs advertised in the East Midlands citing CentOS as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for CentOS in the East Midlands

CentOS
Salary Trend in the East Midlands

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

Salary trend for CentOS in the East Midlands

CentOS
Salary Histogram in the East Midlands

The salary distribution of IT jobs citing CentOS in the East Midlands over the 3 months to 26 March 2017.

Salary histogram for CentOS in the East Midlands

CentOS
Job Locations in the East Midlands

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the East Midlands region over the 3 months to 26 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Nottinghamshire +19 8 £43,350 +41.55%
Derbyshire - 4 £29,750 -
Northamptonshire - 2 £55,000 -
Leicestershire -16 1 £23,000 -29.23%
CentOS
England

CentOS
Top 30 Related IT Skills in the East Midlands

For the 6 months to 26 March 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 East Midlands region with a requirement for CentOS.

1 38 (100.00%) Linux
2 35 (92.11%) VMware
3 32 (84.21%) Red Hat Enterprise Linux
4 29 (76.32%) Red Hat
5 27 (71.05%) Ubuntu
6 25 (65.79%) DevOps
6 25 (65.79%) Debian
7 24 (63.16%) Active Directory
8 22 (57.89%) Finance
9 10 (26.32%) Windows
9 10 (26.32%) SAP
9 10 (26.32%) SQL
10 9 (23.68%) Windows Server
11 8 (21.05%) Amazon AWS
11 8 (21.05%) Windows Server 2012
11 8 (21.05%) vSphere
11 8 (21.05%) SAP HANA
11 8 (21.05%) Windows Server 2003
12 7 (18.42%) PostgreSQL
12 7 (18.42%) Bash Shell
13 6 (15.79%) High Availability
13 6 (15.79%) VMware Infrastructure
13 6 (15.79%) PowerShell
13 6 (15.79%) Firewall
14 5 (13.16%) NFS
14 5 (13.16%) SLA
14 5 (13.16%) Linux Command Line
15 4 (10.53%) VPN
15 4 (10.53%) Python
15 4 (10.53%) Git (software)

CentOS
Top Related IT Skills in the East Midlands 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 (7.89%) Apache
1 3 (7.89%) nginx
2 1 (2.63%) GlassFish
2 1 (2.63%) IIS
2 1 (2.63%) JBoss
2 1 (2.63%) Tomcat
Applications
1 2 (5.26%) MS Office
Cloud Services
1 8 (21.05%) Amazon AWS
2 2 (5.26%) Google Cloud Platform
2 2 (5.26%) SaaS
Communications & Networking
1 6 (15.79%) Firewall
2 4 (10.53%) VPN
3 3 (7.89%) DNS
3 3 (7.89%) iSCSI
3 3 (7.89%) LAN
3 3 (7.89%) WAN
4 2 (5.26%) HTTPS
4 2 (5.26%) Reverse Proxy
4 2 (5.26%) TCP/IP
4 2 (5.26%) VLAN
5 1 (2.63%) Cisco ASA
5 1 (2.63%) Internet
5 1 (2.63%) Intrusion Detection
5 1 (2.63%) LDAP
5 1 (2.63%) SAN
5 1 (2.63%) SSL
Database & Business Intelligence
1 8 (21.05%) SAP HANA
2 7 (18.42%) PostgreSQL
3 2 (5.26%) MySQL
3 2 (5.26%) Redis
4 1 (2.63%) Couchbase
4 1 (2.63%) NoSQL
4 1 (2.63%) SQL Server
Development Applications
1 4 (10.53%) Git (software)
1 4 (10.53%) Jenkins
2 2 (5.26%) JIRA
3 1 (2.63%) Bitbucket
3 1 (2.63%) Bugzilla
3 1 (2.63%) Maven
3 1 (2.63%) MSBuild
3 1 (2.63%) Subversion
General
1 22 (57.89%) Finance
2 2 (5.26%) Retail
3 1 (2.63%) Games
Job Titles
1 22 (57.89%) Systems Administrator
2 16 (42.11%) Linux Engineer
2 16 (42.11%) Linux Systems Administrator
3 14 (36.84%) DevOps Engineer
3 14 (36.84%) Linux DevOps Engineer
3 14 (36.84%) Linux/Unix DevOps
4 9 (23.68%) Consultant
4 9 (23.68%) Linux Consultant
5 8 (21.05%) Administrator
5 8 (21.05%) Technical Consultant
6 2 (5.26%) Infrastructure Engineer
6 2 (5.26%) Linux Administrator
6 2 (5.26%) Systems Engineer
7 1 (2.63%) Analyst
7 1 (2.63%) DevOps Specialist
7 1 (2.63%) Implementation Analyst
7 1 (2.63%) Implementation Consultant
7 1 (2.63%) Network Administrator
7 1 (2.63%) Senior Linux Administrator
7 1 (2.63%) Senior Systems Administrator
Libraries, Frameworks & Software Standards
1 3 (7.89%) LAMP
2 1 (2.63%) Ajax
2 1 (2.63%) CGI
2 1 (2.63%) JSON
2 1 (2.63%) LEMP Stack
2 1 (2.63%) Memcached
2 1 (2.63%) REST
2 1 (2.63%) SOAP
2 1 (2.63%) XML
Miscellaneous
1 5 (13.16%) Linux Command Line
2 1 (2.63%) Clustering
2 1 (2.63%) Computer Science
2 1 (2.63%) Internet of Things
2 1 (2.63%) Wiki
Operating Systems
1 38 (100.00%) Linux
2 32 (84.21%) Red Hat Enterprise Linux
3 27 (71.05%) Ubuntu
4 25 (65.79%) Debian
5 10 (26.32%) Windows
6 9 (23.68%) Windows Server
7 8 (21.05%) Windows Server 2003
7 8 (21.05%) Windows Server 2012
8 2 (5.26%) Fedora
8 2 (5.26%) Unix
8 2 (5.26%) VyOS
9 1 (2.63%) Windows 10
9 1 (2.63%) Windows 7
Processes & Methodologies
1 25 (65.79%) DevOps
2 6 (15.79%) High Availability
3 2 (5.26%) Agile Software Development
3 2 (5.26%) Microservices
3 2 (5.26%) Network Design
3 2 (5.26%) Open Source
4 1 (2.63%) Configuration Management
4 1 (2.63%) Continuous Deployment
4 1 (2.63%) Continuous Integration
4 1 (2.63%) Issue Tracking
4 1 (2.63%) Reverse Engineering
4 1 (2.63%) Scrum
Programming Languages
1 10 (26.32%) SQL
2 7 (18.42%) Bash Shell
3 6 (15.79%) PowerShell
4 4 (10.53%) Python
5 3 (7.89%) PHP
6 1 (2.63%) Java
6 1 (2.63%) Perl
6 1 (2.63%) Shell Script
Qualifications
1 1 (2.63%) CCNA
1 1 (2.63%) Cisco Certification
1 1 (2.63%) Degree
1 1 (2.63%) MCP
Quality Assurance & Compliance
1 5 (13.16%) SLA
System Software
1 24 (63.16%) Active Directory
2 8 (21.05%) vSphere
3 6 (15.79%) VMware Infrastructure
4 5 (13.16%) NFS
5 2 (5.26%) Postfix
5 2 (5.26%) Virtual Machines
6 1 (2.63%) Docker
6 1 (2.63%) Hyper-V
6 1 (2.63%) Samba
6 1 (2.63%) Squid
6 1 (2.63%) Varnish
6 1 (2.63%) VMware ESXi
6 1 (2.63%) VMware Workstation
6 1 (2.63%) Xen
Systems Management
1 4 (10.53%) Puppet
2 3 (7.89%) HAProxy
2 3 (7.89%) Opscode Chef
3 2 (5.26%) Ansible
4 1 (2.63%) Cacti
4 1 (2.63%) Nagios
4 1 (2.63%) SCCM
4 1 (2.63%) WMI
4 1 (2.63%) Zenoss
Vendors
1 35 (92.11%) VMware
2 29 (76.32%) Red Hat
3 10 (26.32%) SAP
4 2 (5.26%) Google
4 2 (5.26%) Microsoft
4 2 (5.26%) Rackspace
4 2 (5.26%) Vyatta
5 1 (2.63%) Adobe
5 1 (2.63%) Apple
5 1 (2.63%) Autodesk
5 1 (2.63%) Cisco
5 1 (2.63%) Fujitsu
5 1 (2.63%) Oracle
5 1 (2.63%) Splunk
5 1 (2.63%) WSO2