The first table below looks at the demand for CentOS skills in IT jobs advertised for the Guildford region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 24 May 2013 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all of the Operating Systems category for the Guildford region.

Location
3 months to
24 May 2013
Same period 2012 Same period 2011
CentOS Linux
Rank 61 - 48
Rank change year-on-year
- 0
Permanent jobs citing CentOS 24 0 7
As % of all permanent IT jobs located in Guildford 2.676% - 1.509%
As % of the Operating Systems category 8.791% - 5.691%
Number of salaries quoted 21 0 6
Average salary £40,000 - £55,000
UK excluding London average salary £38,500 £37,500 £36,000
% change year-on-year
+2.66% +4.16%
All Operating Systems
Guildford
Permanent IT job ads with a match in the
Operating Systems category
273 189 123
As % of all permanent IT jobs located in Guildford 30.43% 25.96% 26.51%
Number of salaries quoted 228 178 114
Average salary £40,000 £37,500 £33,500
Average salary % change year-on-year
+6.66% +11.94%
90% offered a salary of more than £22,500 £22,000 £24,000
10% offered a salary of more than £55,000 £55,000 £50,000
UK excluding London average salary £37,500 £37,500 £35,000
% change year-on-year
- +7.14%
CentOS
Surrey

CentOS
Jobs Demand Trend

This chart provides a 3-month moving total of permanent IT jobs citing CentOS across the Guildford region as a proportion of the total demand within the Operating Systems category.

Guildford CentOS Jobs Demand Trend

CentOS
Salary Trend

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

Guildford CentOS Salary Trend

CentOS
Salary Histogram

This chart provides a salary histogram for IT jobs citing CentOS across the Guildford region over the 3 months to 24 May 2013.

Guildford CentOS Salary Histogram

CentOS
Top 30 Related IT Skills

For the 6 months to 24 May 2013, IT jobs across the Guildford region citing CentOS also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited CentOS.

1 45 (100.00%) Linux
2 31 (68.89%) Apache
3 28 (62.22%) MySQL
4 27 (60.00%) VMware
5 26 (57.78%) Windows
5 26 (57.78%) Microsoft
6 23 (51.11%) Red Hat
6 23 (51.11%) VMware Infrastructure
7 19 (42.22%) Windows Server 2008
7 19 (42.22%) Windows Server 2003
7 19 (42.22%) DNS
8 17 (37.78%) PHP
8 17 (37.78%) SQL
9 15 (33.33%) TCP/IP
10 14 (31.11%) VMware ESXi
11 13 (28.89%) SMTP
11 13 (28.89%) Internet
12 12 (26.67%) Degree
13 11 (24.44%) HP
13 11 (24.44%) UNIX
14 10 (22.22%) FTP
14 10 (22.22%) POP3
14 10 (22.22%) IIS
14 10 (22.22%) Perl
14 10 (22.22%) Web Services
14 10 (22.22%) Dell
14 10 (22.22%) Xen
14 10 (22.22%) Zenoss
15 7 (15.56%) Information Security
15 7 (15.56%) Scrum

CentOS
Top Related IT Skills by Category

For the 6 months to 24 May 2013, IT jobs across the Guildford region citing CentOS also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited CentOS. Up to 20 skills are shown per category.

Application Development
1 10 (22.22%) Web Services
2 7 (15.56%) jQuery
3 5 (11.11%) SOAP
3 5 (11.11%) LAMP
4 4 (8.889%) Ajax
5 2 (4.444%) XHTML
5 2 (4.444%) CSS
5 2 (4.444%) Node.js
5 2 (4.444%) CakePHP
Application Platforms
1 31 (68.89%) Apache
2 10 (22.22%) IIS
3 5 (11.11%) ActiveMQ
3 5 (11.11%) Tomcat
4 2 (4.444%) SharePoint
Applications
1 6 (13.33%) MS Excel
Communications & Networking
1 19 (42.22%) DNS
2 15 (33.33%) TCP/IP
3 13 (28.89%) SMTP
3 13 (28.89%) Internet
4 10 (22.22%) FTP
4 10 (22.22%) POP3
5 5 (11.11%) SSL
5 5 (11.11%) VPN
5 5 (11.11%) MPLS
5 5 (11.11%) Firewall
5 5 (11.11%) IPsec
6 4 (8.889%) Asterisk PBX
7 2 (4.444%) SAN
Database & Business Intelligence
1 28 (62.22%) MySQL
2 5 (11.11%) SQL Server
General
1 3 (6.667%) Automotive
2 1 (2.222%) Back Office
Job Titles
1 16 (35.56%) Systems Administrator
1 16 (35.56%) Administrator
2 9 (20.00%) Infrastructure Engineer
3 7 (15.56%) QA Engineer
3 7 (15.56%) Developer
4 6 (13.33%) Linux Engineer
5 5 (11.11%) Citrix Engineer
5 5 (11.11%) Junior Systems Administrator
5 5 (11.11%) Infrastructure Services Engineer
5 5 (11.11%) Junior
6 4 (8.889%) Web Developer
6 4 (8.889%) Development Manager
6 4 (8.889%) Software Development Manager
6 4 (8.889%) Software Manager
6 4 (8.889%) PHP Developer
6 4 (8.889%) IT Development Manager
7 2 (4.444%) Server Engineer
8 1 (2.222%) Linux Administrator
8 1 (2.222%) Senior Server Engineer
8 1 (2.222%) Linux Systems Administrator
Miscellaneous
1 5 (11.11%) Clustering
2 4 (8.889%) Computer Science
2 4 (8.889%) Pocket PC
3 3 (6.667%) Firmware
4 1 (2.222%) Enterprise Software
Operating Systems
1 45 (100.00%) Linux
2 26 (57.78%) Windows
3 19 (42.22%) Windows Server 2008
3 19 (42.22%) Windows Server 2003
4 11 (24.44%) UNIX
5 6 (13.33%) Red Hat Enterprise Linux
6 5 (11.11%) Windows XP
6 5 (11.11%) AIX
6 5 (11.11%) Solaris
7 4 (8.889%) Debian
8 2 (4.444%) Ubuntu
Processes & Methodologies
1 7 (15.56%) Information Security
1 7 (15.56%) Scrum
1 7 (15.56%) Extreme Programming
1 7 (15.56%) Software Testing
1 7 (15.56%) Test Scripting
2 6 (13.33%) Configuration Management
3 5 (11.11%) ITIL
3 5 (11.11%) Change Management
4 4 (8.889%) Workflow
4 4 (8.889%) Project Management
4 4 (8.889%) PRINCE2
4 4 (8.889%) CRM
5 3 (6.667%) Infrastructure Management
6 1 (2.222%) Business Continuity
6 1 (2.222%) OOP
Programming Languages
1 17 (37.78%) PHP
1 17 (37.78%) SQL
2 10 (22.22%) Perl
3 7 (15.56%) Bash shell
4 5 (11.11%) JavaScript
5 4 (8.889%) Delphi
5 4 (8.889%) VB
Qualifications
1 12 (26.67%) Degree
2 6 (13.33%) ISEB
2 6 (13.33%) Security Cleared
3 2 (4.444%) CCNA
3 2 (4.444%) CCDA
3 2 (4.444%) CCA
3 2 (4.444%) Citrix Certification
3 2 (4.444%) Cisco Certification
3 2 (4.444%) Microsoft Certification
3 2 (4.444%) MCSE
3 2 (4.444%) MCSA
3 2 (4.444%) SC Cleared
3 2 (4.444%) CCAA
3 2 (4.444%) VMware Certified Professional (VCP)
4 1 (2.222%) DV Cleared
Quality Assurance & Compliance
1 7 (15.56%) QA
System Software
1 23 (51.11%) VMware Infrastructure
2 14 (31.11%) VMware ESXi
3 10 (22.22%) Xen
4 6 (13.33%) vSphere
5 5 (11.11%) Citrix Presentation Server
5 5 (11.11%) XenApp
5 5 (11.11%) Active Directory
5 5 (11.11%) Samba
Systems Management
1 10 (22.22%) Zenoss
2 7 (15.56%) Nagios
3 5 (11.11%) Puppet
4 4 (8.889%) YUM
Vendors
1 27 (60.00%) VMware
2 26 (57.78%) Microsoft
3 23 (51.11%) Red Hat
4 11 (24.44%) HP
5 10 (22.22%) Dell
6 6 (13.33%) Cisco
7 5 (11.11%) Zend
7 5 (11.11%) AppSense
7 5 (11.11%) JBoss
7 5 (11.11%) Oracle
7 5 (11.11%) Citrix
8 1 (2.222%) CheckPoint