The table below looks at the statistics for CentOS skills in IT jobs advertised for the South West region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 1 May 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
1 May 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 175 207 215
Rank change year-on-year
+32 +8
Permanent jobs citing CentOS 64 30 8
As % of all permanent IT jobs located in the South West 1.05% 0.52% 0.15%
As % of the Operating Systems category 3.56% 1.97% 0.52%
Number of salaries quoted 62 22 8
Average salary £42,500 £37,500 £27,127
Average salary % change year-on-year
+13.33% +38.24%
90% offered a salary of more than £35,000 £30,150 £25,739
10% offered a salary of more than £70,000 £44,750 £35,000
UK excluding London average salary £40,000 £37,500 £37,500
% change year-on-year
+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 South West region.

Operating Systems Category
South West
Permanent IT job ads with a match in the
Operating Systems category
1797 1522 1530
As % of all permanent IT jobs located in the South West 29.59% 26.26% 28.03%
Number of salaries quoted 1467 1351 1349
Average salary £35,000 £35,000 £37,500
Average salary % change year-on-year
- -6.66%
90% offered a salary of more than £21,000 £22,000 £23,500
10% offered a salary of more than £55,000 £47,525 £47,500
UK excluding London average salary £37,500 £36,895 £37,500
% change year-on-year
+1.64% -1.61%

CentOS
Jobs Demand Trend in the South West

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

CentOS Jobs Demand Trend in the South West

CentOS
Salary Trend in the South West

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

CentOS Salary Trend in the South West

CentOS
Salary Histogram in the South West

This chart provides a salary histogram for IT jobs citing CentOS across the South West region over the 3 months to 1 May 2015.

CentOS Salary Histogram in the South West

CentOS
Job Locations in the South West

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing CentOS within the South West region over the 3 months to 1 May 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Bristol +19 35 £43,750 +25.00% 6
Dorset 0 10 £36,250 -3.33% 2
Somerset - 10 £42,500 - 2
Gloucestershire -17 5 £34,500 - 1
Wiltshire -1 4 £52,500 +40.00% 4
CentOS
England

CentOS
Top 30 Related IT Skills in the South West

For the 6 months to 1 May 2015, IT jobs across the South West 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.

1 118 (99.16%) Linux
2 85 (71.43%) Red Hat
3 70 (58.82%) Red Hat Enterprise Linux
4 65 (54.62%) Puppet
5 62 (52.10%) Apache
6 56 (47.06%) Windows
6 56 (47.06%) MySQL
7 51 (42.86%) Bash Shell
8 48 (40.34%) VMware
9 47 (39.50%) DevOps
10 41 (34.45%) Debian
10 41 (34.45%) Continuous Integration
11 39 (32.77%) PHP
12 37 (31.09%) VMware Infrastructure
13 36 (30.25%) Ruby
13 36 (30.25%) Ubuntu
14 35 (29.41%) Opscode Chef
15 34 (28.57%) Firewall
16 32 (26.89%) Configuration Management
16 32 (26.89%) Tomcat
16 32 (26.89%) Amazon AWS
17 31 (26.05%) Perl
17 31 (26.05%) Fedora
18 30 (25.21%) LAMP
19 28 (23.53%) SQL
19 28 (23.53%) Jenkins
20 27 (22.69%) Git (software)
20 27 (22.69%) Python
21 22 (18.49%) Shell Script
22 21 (17.65%) IPsec

CentOS
Top Related IT Skills in the South West by Category

For the 6 months to 1 May 2015, IT jobs across the South West 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 62 (52.10%) Apache
2 32 (26.89%) Tomcat
3 21 (17.65%) nginx
4 8 (6.72%) Confluence
4 8 (6.72%) MediaWiki
5 7 (5.88%) MS Exchange
6 5 (4.20%) IIS
7 4 (3.36%) GlassFish
7 4 (3.36%) Apache Solr
7 4 (3.36%) Elasticsearch
8 3 (2.52%) Exchange Server 2007
9 2 (1.68%) JBoss
9 2 (1.68%) OpenStack
10 1 (0.84%) SharePoint
Applications
1 6 (5.04%) MS Excel
Business Applications
1 7 (5.88%) SAP Oil and Gas
Cloud Services
1 32 (26.89%) Amazon AWS
2 11 (9.24%) Amazon EC2
3 8 (6.72%) SaaS
3 8 (6.72%) Cloud Computing
4 4 (3.36%) Amazon S3
4 4 (3.36%) Virtual Private Cloud
5 2 (1.68%) OpenShift
Communications & Networking
1 34 (28.57%) Firewall
2 21 (17.65%) IPsec
3 18 (15.13%) NAS
4 17 (14.29%) VPN
5 16 (13.45%) TCP/IP
6 15 (12.61%) SAN
6 15 (12.61%) DNS
6 15 (12.61%) LAN
6 15 (12.61%) WAN
7 13 (10.92%) SSL
8 8 (6.72%) OSPF
8 8 (6.72%) BGP
8 8 (6.72%) EIGRP
8 8 (6.72%) LDAP
8 8 (6.72%) IPv6
8 8 (6.72%) Network Security
9 7 (5.88%) DHCP
9 7 (5.88%) HTTP
10 4 (3.36%) Wi-Fi
10 4 (3.36%) SMTP
Database & Business Intelligence
1 56 (47.06%) MySQL
2 16 (13.45%) PostgreSQL
3 7 (5.88%) Relational Database
3 7 (5.88%) SQL Server
4 6 (5.04%) SQL Server 2005
5 4 (3.36%) Hadoop
5 4 (3.36%) CouchDB
5 4 (3.36%) MongoDB
5 4 (3.36%) NoSQL
5 4 (3.36%) MariaDB
5 4 (3.36%) Hazelcast
5 4 (3.36%) Amazon RDS
Development Applications
1 28 (23.53%) Jenkins
2 27 (22.69%) Git (software)
3 19 (15.97%) Hudson
4 16 (13.45%) Subversion
5 8 (6.72%) JIRA
6 4 (3.36%) Mercurial
7 2 (1.68%) Oracle Forms
General
1 9 (7.56%) Finance
2 7 (5.88%) Marketing
2 7 (5.88%) Electronics
2 7 (5.88%) Telecoms
2 7 (5.88%) Manufacturing
3 6 (5.04%) Advertising
4 4 (3.36%) Back Office
Job Titles
1 42 (35.29%) Systems Administrator
1 42 (35.29%) Administrator
2 28 (23.53%) Systems Engineer
3 27 (22.69%) DevOps Engineer
4 24 (20.17%) Linux Administrator
5 21 (17.65%) Linux Systems Administrator
6 18 (15.13%) Support Engineer
7 17 (14.29%) Linux Engineer
8 10 (8.40%) 3rd Line Support
8 10 (8.40%) Linux Systems Engineer
8 10 (8.40%) 3rd Line Support Engineer
9 9 (7.56%) Infrastructure Engineer
10 8 (6.72%) Linux DevOps Engineer
11 7 (5.88%) Lead Systems Engineer
12 6 (5.04%) Data Analyst
12 6 (5.04%) Embedded Software Engineer
12 6 (5.04%) UNIX Systems Administrator
12 6 (5.04%) UNIX Administrator
12 6 (5.04%) UNIX Systems Engineer
12 6 (5.04%) UNIX Engineer
Libraries, Frameworks & Software Standards
1 30 (25.21%) LAMP
2 17 (14.29%) Web Services
3 10 (8.40%) .NET
3 10 (8.40%) jQuery
4 8 (6.72%) ActiveMQ
5 6 (5.04%) ASP.NET
5 6 (5.04%) HTML
6 4 (3.36%) CSS
6 4 (3.36%) Servlets
6 4 (3.36%) Spring
6 4 (3.36%) RabbitMQ
7 3 (2.52%) Middleware
8 2 (1.68%) libvirt
Miscellaneous
1 12 (10.08%) Open Source
2 8 (6.72%) Clustering
2 8 (6.72%) Wiki
3 7 (5.88%) DTV
4 5 (4.20%) Derivative
5 4 (3.36%) BYOD
6 3 (2.52%) Client/Server
7 2 (1.68%) Analytical Skills
8 1 (0.84%) Computer Science
8 1 (0.84%) Replication
Operating Systems
1 118 (99.16%) Linux
2 70 (58.82%) Red Hat Enterprise Linux
3 56 (47.06%) Windows
4 41 (34.45%) Debian
5 36 (30.25%) Ubuntu
6 31 (26.05%) Fedora
7 18 (15.13%) UNIX
8 17 (14.29%) Windows Server 2003
9 12 (10.08%) Solaris
9 12 (10.08%) Oracle Linux
10 10 (8.40%) Windows Server 2012
11 6 (5.04%) Apple iOS
11 6 (5.04%) Android
12 4 (3.36%) Mac OS X
12 4 (3.36%) Windows Server 2008
13 3 (2.52%) VMS
14 2 (1.68%) SUSE Linux Enterprise Server
15 1 (0.84%) FreeBSD
Processes & Methodologies
1 47 (39.50%) DevOps
2 41 (34.45%) Continuous Integration
3 32 (26.89%) Configuration Management
4 20 (16.81%) Agile Software Development
5 18 (15.13%) E-Commerce
6 12 (10.08%) Software Engineering
7 11 (9.24%) Unit Testing
7 11 (9.24%) Migration
8 9 (7.56%) Capacity Planning
9 8 (6.72%) Scrum
9 8 (6.72%) Disaster Recovery
9 8 (6.72%) ITIL
9 8 (6.72%) Build Automation
10 7 (5.88%) Release Management
10 7 (5.88%) Digital Marketing
10 7 (5.88%) Mentoring
10 7 (5.88%) Database Theory
10 7 (5.88%) Relational Database Theory
10 7 (5.88%) Data Modelling
10 7 (5.88%) Business Intelligence
Programming Languages
1 51 (42.86%) Bash Shell
2 39 (32.77%) PHP
3 36 (30.25%) Ruby
4 31 (26.05%) Perl
5 28 (23.53%) SQL
6 27 (22.69%) Python
7 22 (18.49%) Shell Script
8 15 (12.61%) Java
9 10 (8.40%) C++
10 8 (6.72%) PHP5
11 6 (5.04%) C
11 6 (5.04%) C#
11 6 (5.04%) JavaScript
12 4 (3.36%) Objective-C
12 4 (3.36%) Korn
12 4 (3.36%) Lua
12 4 (3.36%) Groovy
Qualifications
1 15 (12.61%) Cisco Certification
2 9 (7.56%) VMware Certified Professional (VCP)
3 8 (6.72%) CCNA
4 7 (5.88%) CCNP
5 6 (5.04%) Degree
6 4 (3.36%) RHCSA
7 1 (0.84%) SC Cleared
7 1 (0.84%) Security Cleared
7 1 (0.84%) RHCE
Quality Assurance & Compliance
1 7 (5.88%) SLA
2 3 (2.52%) QA
3 1 (0.84%) ISO/IEC 27001
3 1 (0.84%) ISO 9001
System Software
1 37 (31.09%) VMware Infrastructure
2 20 (16.81%) Active Directory
3 16 (13.45%) Samba
4 14 (11.76%) vSphere
5 10 (8.40%) vCloud
6 8 (6.72%) Postfix
6 8 (6.72%) VirtualBox
6 8 (6.72%) XenServer
6 8 (6.72%) iptables
7 4 (3.36%) Terminal Services
7 4 (3.36%) Varnish
8 3 (2.52%) Hyper-V
9 2 (1.68%) NFS
9 2 (1.68%) Squid
9 2 (1.68%) Gluster
9 2 (1.68%) KVM
9 2 (1.68%) Docker
9 2 (1.68%) RHEV
9 2 (1.68%) oVirt
9 2 (1.68%) GFS2
Systems Management
1 65 (54.62%) Puppet
2 35 (29.41%) Opscode Chef
3 14 (11.76%) Salt
4 12 (10.08%) ZABBIX
5 11 (9.24%) Ansible
6 10 (8.40%) Nagios
7 4 (3.36%) Munin
7 4 (3.36%) Zenoss
7 4 (3.36%) Icinga
7 4 (3.36%) Opsview
7 4 (3.36%) HAProxy
8 2 (1.68%) Red Hat Satellite
8 2 (1.68%) Cobbler
8 2 (1.68%) SELinux
8 2 (1.68%) Pacemaker
9 1 (0.84%) Capistrano
Vendors
1 85 (71.43%) Red Hat
2 48 (40.34%) VMware
3 13 (10.92%) Citrix
4 12 (10.08%) Oracle
5 11 (9.24%) Microsoft
6 7 (5.88%) SAP
7 6 (5.04%) Wind River
8 5 (4.20%) Sun
8 5 (4.20%) NetApp
9 4 (3.36%) Cisco
9 4 (3.36%) Percona
10 3 (2.52%) Rackspace
10 3 (2.52%) HP
11 2 (1.68%) Salesforce.com
12 1 (0.84%) Juniper
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