The table below looks at the statistics for CentOS skills in IT jobs advertised for the East of England region. Included is a guide to the salaries offered in IT jobs that have cited CentOS over the 3 months to 30 May 2016 with a comparison to the same period over the previous 2 years.

3 months to
30 May 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 229 244 243
Rank change year-on-year
+15 -1
Permanent jobs citing CentOS 20 39 56
As % of all permanent IT jobs located in the East of England 0.31% 0.52% 0.65%
As % of the Operating Systems category 1.21% 1.90% 2.20%
Number of salaries quoted 19 39 54
Median salary £49,000 £46,500 £42,500
Median salary % change year-on-year
+5.37% +9.41%
90% offered a salary of more than £39,850 £37,500 £25,000
10% offered a salary of more than £57,750 £55,000 £53,000
UK excluding London median salary £49,000 £40,000 £37,500
% change year-on-year
+22.50% +6.66%
CentOS
England

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in permanent jobs advertised in the East of England region.

Operating Systems Category
East of England
Permanent IT job ads with a match in the
Operating Systems category
1647 2051 2546
As % of all permanent IT jobs located in the East of England 25.28% 27.10% 29.39%
Number of salaries quoted 1394 1606 2113
Median salary £40,000 £40,000 £39,500
Median salary % change year-on-year
- +1.26%
90% offered a salary of more than £24,500 £23,500 £25,000
10% offered a salary of more than £60,000 £55,000 £55,000
UK excluding London median salary £37,500 £37,500 £36,000
% change year-on-year
- +4.16%

CentOS
Jobs Demand Trend in the East of England

The demand trend of job ads across the East of England region citing CentOS as a proportion of all IT jobs with a match in the Operating Systems category.

CentOS Jobs Demand Trend in the East of England

CentOS
Salary Trend in the East of England

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

CentOS Salary Trend in the East of England

CentOS
Salary Histogram in the East of England

This chart provides a salary histogram for IT jobs citing CentOS across the East of England region over the 3 months to 30 May 2016.

CentOS Salary Histogram in the East of England

CentOS
Job Locations in the East of England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the East of England region over the 3 months to 30 May 2016. 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
(Click see detailed
statistics and trends)
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
Hertfordshire +20 10 £50,000 -9.09%
Cambridgeshire -7 9 £47,500 +8.57% 3
Bedfordshire - 1 £45,000 -
CentOS
England

CentOS
Top 30 Related IT Skills in the East of England

For the 6 months to 30 May 2016, 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 of England region with a requirement for CentOS.

1 43 (100.00%) Linux
2 27 (62.79%) Red Hat
3 20 (46.51%) Bash Shell
4 19 (44.19%) Perl
5 16 (37.21%) Red Hat Enterprise Linux
5 16 (37.21%) Windows
6 15 (34.88%) Apache
6 15 (34.88%) Unix
7 14 (32.56%) LAMP
8 13 (30.23%) Xen
8 13 (30.23%) MySQL
9 12 (27.91%) SAN
9 12 (27.91%) VMware
10 11 (25.58%) Load Balancing
10 11 (25.58%) SQL
11 10 (23.26%) iptables
12 9 (20.93%) KVM
12 9 (20.93%) Windows Server
12 9 (20.93%) Firewall
12 9 (20.93%) SSL
12 9 (20.93%) TCP/IP
12 9 (20.93%) Ubuntu
12 9 (20.93%) VMware Infrastructure
13 8 (18.60%) Replication
13 8 (18.60%) DNS
14 7 (16.28%) PHP
14 7 (16.28%) Sun
14 7 (16.28%) Ruby
14 7 (16.28%) NAS
14 7 (16.28%) nginx

CentOS
Top Related IT Skills in the East of England 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 15 (34.88%) Apache
2 7 (16.28%) nginx
3 4 (9.30%) JBoss
3 4 (9.30%) Joomla!
3 4 (9.30%) Moodle
3 4 (9.30%) Tomcat
3 4 (9.30%) WordPress
4 2 (4.65%) Confluence
5 1 (2.33%) IIS
5 1 (2.33%) OpenStack
Applications
1 1 (2.33%) MS Excel
Business Applications
1 4 (9.30%) Magento
Cloud Services
1 2 (4.65%) Amazon AWS
2 1 (2.33%) GitHub
Communications & Networking
1 12 (27.91%) SAN
2 9 (20.93%) Firewall
2 9 (20.93%) SSL
2 9 (20.93%) TCP/IP
3 8 (18.60%) DNS
4 7 (16.28%) NAS
5 6 (13.95%) FTP
6 5 (11.63%) IMAP
6 5 (11.63%) POP3
6 5 (11.63%) SMTP
6 5 (11.63%) SSH
7 3 (6.98%) WAN
8 2 (4.65%) LAN
8 2 (4.65%) VoIP
8 2 (4.65%) Wi-Fi
8 2 (4.65%) Wireless
9 1 (2.33%) HTTP
9 1 (2.33%) Kerberos
9 1 (2.33%) tcpdump
9 1 (2.33%) VLAN
Database & Business Intelligence
1 13 (30.23%) MySQL
2 7 (16.28%) PostgreSQL
3 4 (9.30%) SQL Server
3 4 (9.30%) SQL Server 2008
4 3 (6.98%) DB2
Development Applications
1 2 (4.65%) JIRA
1 2 (4.65%) MSBuild
2 1 (2.33%) Atlassian Bamboo
2 1 (2.33%) Git (software)
2 1 (2.33%) Jenkins
2 1 (2.33%) Maven
2 1 (2.33%) Subversion
General
1 2 (4.65%) Finance
2 1 (2.33%) Games
Job Titles
1 20 (46.51%) Administrator
2 19 (44.19%) Systems Administrator
3 18 (41.86%) Linux Administrator
3 18 (41.86%) Linux Systems Administrator
4 11 (25.58%) Linux Engineer
5 10 (23.26%) Support Engineer
6 9 (20.93%) Linux Support
6 9 (20.93%) Linux Support Engineer
7 5 (11.63%) IT Administrator
7 5 (11.63%) IT Systems Administrator
7 5 (11.63%) Unix Administrator
7 5 (11.63%) Unix Engineer
7 5 (11.63%) Unix Linux Engineer
7 5 (11.63%) Unix Linux Systems Administrator
7 5 (11.63%) Unix Support
7 5 (11.63%) Unix Support Engineer
7 5 (11.63%) Unix Systems Administrator
7 5 (11.63%) VMWare Administrator
8 4 (9.30%) Implementation Engineer
8 4 (9.30%) Web Administrator
Libraries, Frameworks & Software Standards
1 14 (32.56%) LAMP
2 6 (13.95%) LEMP Stack
3 4 (9.30%) Alternative PHP Cache
3 4 (9.30%) LAPP Stack
4 1 (2.33%) PHP-FPM
4 1 (2.33%) Web Services
Miscellaneous
1 8 (18.60%) Replication
2 4 (9.30%) Clustering
3 3 (6.98%) Analytical Skills
4 1 (2.33%) BBC
4 1 (2.33%) Computer Science
4 1 (2.33%) Data Centre
4 1 (2.33%) iPhone
Operating Systems
1 43 (100.00%) Linux
2 16 (37.21%) Red Hat Enterprise Linux
2 16 (37.21%) Windows
3 15 (34.88%) Unix
4 9 (20.93%) Ubuntu
4 9 (20.93%) Windows Server
5 7 (16.28%) Windows Server 2008
6 6 (13.95%) Debian
7 2 (4.65%) Windows 7
8 1 (2.33%) Android
8 1 (2.33%) Fedora
8 1 (2.33%) HPUX
8 1 (2.33%) Oracle Linux
8 1 (2.33%) Solaris
8 1 (2.33%) SUSE
8 1 (2.33%) Windows 2000 Server
8 1 (2.33%) Windows Server 2003
8 1 (2.33%) Windows Server 2012
Processes & Methodologies
1 11 (25.58%) Load Balancing
2 6 (13.95%) ITIL
3 5 (11.63%) Configuration Management
3 5 (11.63%) DevOps
4 4 (9.30%) ITIL V3
4 4 (9.30%) Performance Tuning
4 4 (9.30%) Project Management
4 4 (9.30%) Time Management
5 3 (6.98%) Continuous Improvement
6 2 (4.65%) High Availability
6 2 (4.65%) Information Management
6 2 (4.65%) Server Building
7 1 (2.33%) Agile Software Development
7 1 (2.33%) CRM
7 1 (2.33%) Data Management
7 1 (2.33%) Open Source
7 1 (2.33%) Patch Management
7 1 (2.33%) Problem Management
Programming Languages
1 20 (46.51%) Bash Shell
2 19 (44.19%) Perl
3 11 (25.58%) SQL
4 7 (16.28%) PHP
4 7 (16.28%) Ruby
5 5 (11.63%) Python
6 4 (9.30%) Java
6 4 (9.30%) T-SQL
7 3 (6.98%) PowerShell
8 1 (2.33%) JavaScript
8 1 (2.33%) VBScript
Qualifications
1 4 (9.30%) LPIC
1 4 (9.30%) RHCE
2 2 (4.65%) CCNP
2 2 (4.65%) Cisco Certification
2 2 (4.65%) MCP
2 2 (4.65%) MCSE
2 2 (4.65%) Microsoft Certification
3 1 (2.33%) CCIE
3 1 (2.33%) CCNA
Quality Assurance & Compliance
1 5 (11.63%) SLA
System Software
1 13 (30.23%) Xen
2 10 (23.26%) iptables
3 9 (20.93%) KVM
3 9 (20.93%) VMware Infrastructure
4 6 (13.95%) Active Directory
4 6 (13.95%) Sendmail
5 5 (11.63%) Postfix
5 5 (11.63%) Varnish
6 4 (9.30%) vSphere
7 2 (4.65%) Hyper-V
8 1 (2.33%) Docker
8 1 (2.33%) vCloud
Systems Management
1 6 (13.95%) Nagios
1 6 (13.95%) Opscode Chef
2 5 (11.63%) cPanel
2 5 (11.63%) HAProxy
3 4 (9.30%) Cacti
4 2 (4.65%) Puppet
4 2 (4.65%) Rundeck
5 1 (2.33%) Ansible
5 1 (2.33%) Red Hat Satellite
Vendors
1 27 (62.79%) Red Hat
2 12 (27.91%) VMware
3 7 (16.28%) Sun
4 4 (9.30%) IDERA
4 4 (9.30%) R1Soft
5 3 (6.98%) HP
6 2 (4.65%) Aruba
6 2 (4.65%) CheckPoint
6 2 (4.65%) Cisco
6 2 (4.65%) F5
6 2 (4.65%) Juniper
6 2 (4.65%) Microsoft
7 1 (2.33%) 3PAR
7 1 (2.33%) Citrix
7 1 (2.33%) EMC
7 1 (2.33%) Isilon
7 1 (2.33%) Oracle
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