The table below looks at the statistics for CentOS skills in IT jobs advertised for the Cambridge region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 28 August 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
28 Aug 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 94 93 100
Rank change year-on-year
-1 +7
Permanent jobs citing CentOS 10 26 12
As % of all permanent IT jobs located in Cambridge 0.72% 1.43% 0.76%
As % of the Operating Systems category 2.61% 4.23% 2.02%
Number of salaries quoted 10 22 10
Average salary £43,750 £42,000 £47,500
Average salary % change year-on-year
+4.16% -11.57%
90% offered a salary of more than £39,600 £42,000 £34,600
10% offered a salary of more than £45,300 £45,000 £60,000
UK excluding London average salary £42,500 £41,500 £38,500
% change year-on-year
+2.40% +7.79%
CentOS
Cambridgeshire

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

Operating Systems Category
Cambridge
Permanent IT job ads with a match in the
Operating Systems category
383 615 594
As % of all permanent IT jobs located in Cambridge 27.49% 33.88% 37.74%
Number of salaries quoted 339 497 519
Average salary £43,900 £40,500 £40,000
Average salary % change year-on-year
+8.39% +1.25%
90% offered a salary of more than £25,000 £26,000 £28,984
10% offered a salary of more than £60,000 £57,500 £55,000
UK excluding London average salary £37,500 £37,000 £37,500
% change year-on-year
+1.35% -1.33%

CentOS
Jobs Demand Trend in Cambridge

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

CentOS Jobs Demand Trend in Cambridge

CentOS
Salary Trend in Cambridge

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

CentOS Salary Trend in Cambridge

CentOS
Top 30 Related IT Skills in Cambridge

For the 6 months to 28 August 2015, IT jobs across the Cambridge 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 30 (100.00%) Linux
2 23 (76.67%) Red Hat
3 22 (73.33%) Perl
4 21 (70.00%) Apache
4 21 (70.00%) Python
5 19 (63.33%) DNS
5 19 (63.33%) SQL
5 19 (63.33%) Firewall
6 18 (60.00%) SSL
6 18 (60.00%) Marketing
6 18 (60.00%) Digital Marketing
7 16 (53.33%) Windows
8 15 (50.00%) MySQL
9 14 (46.67%) Configuration Management
10 13 (43.33%) Java
11 12 (40.00%) Subversion
11 12 (40.00%) Red Hat Enterprise Linux
11 12 (40.00%) Postfix
11 12 (40.00%) Tomcat
11 12 (40.00%) Shell Script
12 10 (33.33%) qmail
12 10 (33.33%) HAProxy
13 9 (30.00%) MariaDB
13 9 (30.00%) Zope
14 8 (26.67%) Plone
14 8 (26.67%) CMS
14 8 (26.67%) HTML
14 8 (26.67%) CSS
14 8 (26.67%) nginx
14 8 (26.67%) Varnish

CentOS
Top Related IT Skills in Cambridge by Category

For the 6 months to 28 August 2015, IT jobs across the Cambridge 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 Platforms
1 21 (70.00%) Apache
2 12 (40.00%) Tomcat
3 9 (30.00%) Zope
4 8 (26.67%) Plone
4 8 (26.67%) nginx
4 8 (26.67%) CMS
5 3 (10.00%) MS Exchange
6 2 (6.67%) JBoss
6 2 (6.67%) Exchange Server 2013
7 1 (3.33%) Confluence
Applications
1 1 (3.33%) MS Excel
Business Applications
1 2 (6.67%) SAP Oil and Gas
Communications & Networking
1 19 (63.33%) DNS
1 19 (63.33%) Firewall
2 18 (60.00%) SSL
3 3 (10.00%) SAN
3 3 (10.00%) DHCP
3 3 (10.00%) NAS
4 2 (6.67%) TCP/IP
5 1 (3.33%) SNMP
Database & Business Intelligence
1 15 (50.00%) MySQL
2 9 (30.00%) MariaDB
3 2 (6.67%) Relational Database
3 2 (6.67%) SQL Server
3 2 (6.67%) RDBMS
3 2 (6.67%) PostgreSQL
3 2 (6.67%) SQL Server 2008
Development Applications
1 12 (40.00%) Subversion
2 2 (6.67%) Git (software)
3 1 (3.33%) FishEye
3 1 (3.33%) Jenkins
3 1 (3.33%) JIRA
3 1 (3.33%) Eclipse
3 1 (3.33%) IntelliJ
General
1 18 (60.00%) Marketing
2 3 (10.00%) Finance
3 2 (6.67%) Manufacturing
3 2 (6.67%) Electronics
3 2 (6.67%) Telecoms
Job Titles
1 16 (53.33%) Administrator
2 14 (46.67%) Systems Administrator
3 13 (43.33%) Linux Administrator
4 11 (36.67%) Linux Engineer
4 11 (36.67%) Linux Systems Administrator
5 3 (10.00%) Windows Administrator
5 3 (10.00%) Windows Systems Administrator
6 2 (6.67%) Senior Linux Administrator
6 2 (6.67%) Senior Linux Systems Administrator
6 2 (6.67%) Developer
6 2 (6.67%) Senior Systems Administrator
6 2 (6.67%) Senior Developer
6 2 (6.67%) Support Engineer
7 1 (3.33%) 3rd Line Support
7 1 (3.33%) Technical Support
7 1 (3.33%) Software Architect
7 1 (3.33%) Software Developer
7 1 (3.33%) Architect
7 1 (3.33%) Senior Java Developer
7 1 (3.33%) Java Developer
Libraries, Frameworks & Software Standards
1 8 (26.67%) HTML
1 8 (26.67%) CSS
2 2 (6.67%) JSP
2 2 (6.67%) Web Services
2 2 (6.67%) Hibernate
2 2 (6.67%) Spring
3 1 (3.33%) REST
3 1 (3.33%) SOAP
3 1 (3.33%) J2EE
Miscellaneous
1 2 (6.67%) DTV
1 2 (6.67%) Replication
2 1 (3.33%) Computer Science
2 1 (3.33%) Wiki
Operating Systems
1 30 (100.00%) Linux
2 16 (53.33%) Windows
3 12 (40.00%) Red Hat Enterprise Linux
4 8 (26.67%) Ubuntu
5 7 (23.33%) Debian
6 6 (20.00%) UNIX
7 5 (16.67%) Windows Server 2008
8 3 (10.00%) Windows Server 2003
8 3 (10.00%) Windows Server 2012
9 1 (3.33%) Solaris
Processes & Methodologies
1 18 (60.00%) Digital Marketing
2 14 (46.67%) Configuration Management
3 3 (10.00%) Disaster Recovery
3 3 (10.00%) Data Protection
4 2 (6.67%) SDLC
4 2 (6.67%) Business Intelligence
4 2 (6.67%) Scrum
4 2 (6.67%) Programme Management
4 2 (6.67%) Agile Software Development
4 2 (6.67%) TDD
4 2 (6.67%) Web Development
4 2 (6.67%) Load Balancing
4 2 (6.67%) Project Management
4 2 (6.67%) ITIL
5 1 (3.33%) CRM
Programming Languages
1 22 (73.33%) Perl
2 21 (70.00%) Python
3 19 (63.33%) SQL
4 13 (43.33%) Java
5 12 (40.00%) Shell Script
6 6 (20.00%) Bash Shell
7 3 (10.00%) Ruby
8 2 (6.67%) T-SQL
8 2 (6.67%) PHP
Qualifications
1 2 (6.67%) RHCE
1 2 (6.67%) LPIC
2 1 (3.33%) Degree
System Software
1 12 (40.00%) Postfix
2 10 (33.33%) qmail
3 8 (26.67%) Varnish
4 6 (20.00%) VMware Infrastructure
5 3 (10.00%) Active Directory
5 3 (10.00%) vSphere
6 2 (6.67%) KVM
6 2 (6.67%) iptables
6 2 (6.67%) Xen
Systems Management
1 10 (33.33%) HAProxy
2 8 (26.67%) systemd
3 3 (10.00%) Opscode Chef
4 2 (6.67%) Puppet
Vendors
1 23 (76.67%) Red Hat
2 7 (23.33%) VMware
3 3 (10.00%) Microsoft
4 2 (6.67%) SAP
5 1 (3.33%) Cisco
5 1 (3.33%) Atlassian
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