The table below looks at the statistics for CentOS skills in IT jobs advertised for the City of London region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 21 October 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
21 Oct 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 261 256 268
Rank change year-on-year
-5 +12
Permanent jobs citing CentOS 57 69 63
As % of all permanent IT jobs located in the City of London 0.51% 0.57% 0.51%
As % of the Operating Systems category 1.85% 2.11% 1.82%
Number of salaries quoted 55 65 57
Average salary £45,000 £53,000 £44,000
Average salary % change year-on-year
-15.09% +20.45%
90% offered a salary of more than £37,500 £40,200 £27,500
10% offered a salary of more than £60,000 £65,000 £59,100
UK excluding London average salary £40,000 £40,000 £37,500
% change year-on-year
- +6.66%
CentOS
London

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

Operating Systems Category
City of London
Permanent IT job ads with a match in the
Operating Systems category
3076 3269 3471
As % of all permanent IT jobs located in the City of London 27.72% 26.84% 27.90%
Number of salaries quoted 2713 2936 3222
Average salary £50,000 £50,000 £45,000
Average salary % change year-on-year
- +11.11%
90% offered a salary of more than £28,000 £31,500 £28,500
10% offered a salary of more than £70,000 £67,500 £75,000
UK excluding London average salary £37,000 £37,500 £37,500
% change year-on-year
-1.33% -

CentOS
Jobs Demand Trend in the City of London

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

CentOS Jobs Demand Trend in the City of London

CentOS
Salary Trend in the City of London

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

CentOS Salary Trend in the City of London

CentOS
Salary Histogram in the City of London

This chart provides a salary histogram for IT jobs citing CentOS across the City of London region over the 3 months to 21 October 2014.

CentOS Salary Histogram in the City of London

CentOS
Top 30 Related IT Skills in the City of London

For the 6 months to 21 October 2014, IT jobs across the City of London 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.

1 111 (96.52%) Linux
2 89 (77.39%) Red Hat
3 67 (58.26%) Bash Shell
4 61 (53.04%) Perl
4 61 (53.04%) VMware
4 61 (53.04%) Puppet
5 60 (52.17%) Python
6 58 (50.43%) Red Hat Enterprise Linux
7 57 (49.57%) MySQL
8 56 (48.70%) Nagios
9 51 (44.35%) Ruby
9 51 (44.35%) Apache
10 49 (42.61%) Tomcat
11 47 (40.87%) Agile Software Development
12 46 (40.00%) Ubuntu
12 46 (40.00%) VMware Infrastructure
13 45 (39.13%) Cacti
14 43 (37.39%) ITIL
15 42 (36.52%) Load Balancing
16 39 (33.91%) Oracle
17 38 (33.04%) JBoss
17 38 (33.04%) F5
18 35 (30.43%) WebLogic
18 35 (30.43%) nginx
19 34 (29.57%) Ansible
20 33 (28.70%) KVM
20 33 (28.70%) Salt
20 33 (28.70%) ZABBIX
20 33 (28.70%) Windows
21 32 (27.83%) CFEngine

CentOS
Top Related IT Skills in the City of London by Category

For the 6 months to 21 October 2014, IT jobs across the City of London 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 51 (44.35%) Apache
2 49 (42.61%) Tomcat
3 38 (33.04%) JBoss
4 35 (30.43%) WebLogic
4 35 (30.43%) nginx
5 7 (6.09%) IIS
6 5 (4.35%) MS Exchange
7 4 (3.48%) Node.js
7 4 (3.48%) OpenStack
8 1 (0.87%) Exchange Server 2013
8 1 (0.87%) Elasticsearch
8 1 (0.87%) Lync
8 1 (0.87%) Exchange Server 2010
8 1 (0.87%) Confluence
8 1 (0.87%) WordPress
8 1 (0.87%) Jetty
8 1 (0.87%) Exchange Server 2007
Applications
1 8 (6.96%) MS Excel
2 3 (2.61%) MS Office
3 1 (0.87%) MS Visio
3 1 (0.87%) Doxygen
Business Applications
1 1 (0.87%) Magento
1 1 (0.87%) SAP Oil and Gas
Cloud Services
1 10 (8.70%) Amazon AWS
2 1 (0.87%) Amazon SQS
2 1 (0.87%) SaaS
2 1 (0.87%) Amazon EC2
2 1 (0.87%) Amazon S3
Communications & Networking
1 32 (27.83%) F5 BIG-IP LTM
2 31 (26.96%) BIG-IP
3 28 (24.35%) NetScaler
4 24 (20.87%) TCP/IP
5 18 (15.65%) Firewall
6 17 (14.78%) HTTP
7 15 (13.04%) DNS
8 13 (11.30%) WAN
9 12 (10.43%) VPN
10 10 (8.70%) VLAN
10 10 (8.70%) DHCP
10 10 (8.70%) SSL
10 10 (8.70%) SAN
11 8 (6.96%) Cisco ASA
11 8 (6.96%) Cisco IOS
11 8 (6.96%) OSPF
11 8 (6.96%) BGP
11 8 (6.96%) IPsec
11 8 (6.96%) Wireless
11 8 (6.96%) LAN
Database & Business Intelligence
1 57 (49.57%) MySQL
2 28 (24.35%) DB2
3 8 (6.96%) SQL Server
3 8 (6.96%) MongoDB
4 7 (6.09%) PostgreSQL
5 5 (4.35%) Redis
5 5 (4.35%) NoSQL
6 3 (2.61%) Data Mining
7 2 (1.74%) Apache Cassandra
7 2 (1.74%) MariaDB
8 1 (0.87%) Amazon DynamoDB
8 1 (0.87%) Couchbase
8 1 (0.87%) Hadoop
8 1 (0.87%) CouchDB
8 1 (0.87%) SQL Server 2008
8 1 (0.87%) SQL Server 2005
Development Applications
1 10 (8.70%) Git (software)
2 8 (6.96%) Jenkins
3 6 (5.22%) JIRA
4 4 (3.48%) Subversion
5 2 (1.74%) Atlassian Bamboo
5 2 (1.74%) Gerrit
5 2 (1.74%) Trac
6 1 (0.87%) Behat
6 1 (0.87%) PHPUnit
6 1 (0.87%) Cucumber
6 1 (0.87%) Visual Studio
6 1 (0.87%) Mercurial
6 1 (0.87%) TeamCity
6 1 (0.87%) Maven
General
1 12 (10.43%) Finance
2 7 (6.09%) Back Office
3 3 (2.61%) Law
3 3 (2.61%) Marketing
3 3 (2.61%) Games
4 2 (1.74%) Retail
4 2 (1.74%) Advertising
4 2 (1.74%) Publishing
4 2 (1.74%) Telecoms
5 1 (0.87%) Electronics
5 1 (0.87%) Manufacturing
5 1 (0.87%) Investment Banking
5 1 (0.87%) Banking
Job Titles
1 65 (56.52%) Administrator
2 52 (45.22%) Linux Administrator
3 38 (33.04%) Systems Administrator
4 28 (24.35%) Linux Engineer
5 22 (19.13%) Linux Systems Administrator
6 9 (7.83%) Senior Systems Administrator
7 8 (6.96%) Senior Linux Engineer
8 7 (6.09%) Network Engineer
9 6 (5.22%) Senior Network Engineer
9 6 (5.22%) Support Engineer
10 5 (4.35%) DevOps Engineer
10 5 (4.35%) Systems Engineer
10 5 (4.35%) Senior Linux Administrator
11 4 (3.48%) IT Support Engineer
11 4 (3.48%) Senior Linux Systems Administrator
11 4 (3.48%) IT Support
11 4 (3.48%) Developer
11 4 (3.48%) Senior DevOps Engineer
12 3 (2.61%) Linux DevOps Engineer
12 3 (2.61%) Senior Systems Engineer
Libraries, Frameworks & Software Standards
1 20 (17.39%) XML
2 12 (10.43%) Web Services
3 11 (9.57%) LAMP
4 4 (3.48%) HTML
5 3 (2.61%) HTML5
5 3 (2.61%) CSS
6 2 (1.74%) Symfony
6 2 (1.74%) Zend Framework
6 2 (1.74%) jQuery
6 2 (1.74%) RESTful
6 2 (1.74%) MSMQ
6 2 (1.74%) ExpressJS
6 2 (1.74%) RabbitMQ
6 2 (1.74%) CSS3
6 2 (1.74%) AngularJS
7 1 (0.87%) ASP.NET MVC 4
7 1 (0.87%) Laravel
7 1 (0.87%) REST
7 1 (0.87%) Yii
7 1 (0.87%) ASP.NET MVC
Miscellaneous
1 14 (12.17%) Open Source
2 9 (7.83%) Analytical Skills
3 7 (6.09%) Computer Science
4 6 (5.22%) Clustering
5 2 (1.74%) Replication
5 2 (1.74%) Video Editing
5 2 (1.74%) Mathematics
5 2 (1.74%) Physics
5 2 (1.74%) Hedge funds
5 2 (1.74%) Digital Media
6 1 (0.87%) Enterprise Software
6 1 (0.87%) Performance Metrics
6 1 (0.87%) DTV
6 1 (0.87%) Management Information System
6 1 (0.87%) Online Gambling
6 1 (0.87%) Derivative
6 1 (0.87%) Animation
6 1 (0.87%) Wiki
6 1 (0.87%) Data Protection Act
6 1 (0.87%) Streaming Video
Operating Systems
1 111 (96.52%) Linux
2 58 (50.43%) Red Hat Enterprise Linux
3 46 (40.00%) Ubuntu
4 33 (28.70%) Windows
5 11 (9.57%) UNIX
5 11 (9.57%) Debian
6 8 (6.96%) Windows Server 2003
7 7 (6.09%) Windows Server 2008
8 4 (3.48%) Fedora
8 4 (3.48%) Mac OS
8 4 (3.48%) Solaris
8 4 (3.48%) Apple iOS
8 4 (3.48%) Windows Server 2012
9 2 (1.74%) Mac OS X
10 1 (0.87%) Windows 7
10 1 (0.87%) Android
10 1 (0.87%) SUSE
Processes & Methodologies
1 47 (40.87%) Agile Software Development
2 43 (37.39%) ITIL
3 42 (36.52%) Load Balancing
4 28 (24.35%) Statistical Analysis
5 21 (18.26%) DevOps
6 13 (11.30%) Configuration Management
7 9 (7.83%) Change Control
8 8 (6.96%) Performance Tuning
9 7 (6.09%) E-Commerce
9 7 (6.09%) Continuous Integration
9 7 (6.09%) Use Case
10 6 (5.22%) Root Cause Analysis
11 3 (2.61%) Capacity Planning
11 3 (2.61%) Low Latency
11 3 (2.61%) Mentoring
11 3 (2.61%) TDD
12 2 (1.74%) Asset Management
12 2 (1.74%) Penetration Testing
12 2 (1.74%) OO
12 2 (1.74%) Data Security
Programming Languages
1 67 (58.26%) Bash Shell
2 61 (53.04%) Perl
3 60 (52.17%) Python
4 51 (44.35%) Ruby
5 23 (20.00%) PHP
6 14 (12.17%) SQL
7 10 (8.70%) Java
8 9 (7.83%) PowerShell
9 5 (4.35%) Shell Script
10 4 (3.48%) JavaScript
11 2 (1.74%) TypeScript
12 1 (0.87%) sed
12 1 (0.87%) PowerHouse
12 1 (0.87%) C
12 1 (0.87%) C#
12 1 (0.87%) C++
12 1 (0.87%) T-SQL
12 1 (0.87%) PHP5
12 1 (0.87%) AWK
Qualifications
1 16 (13.91%) Degree
2 9 (7.83%) Cisco Certification
2 9 (7.83%) VMware Certified Professional (VCP)
3 8 (6.96%) Security Cleared
3 8 (6.96%) RHCE
3 8 (6.96%) CCNP
4 4 (3.48%) Microsoft Certification
5 3 (2.61%) MCSE
5 3 (2.61%) MCP
6 2 (1.74%) A+ Certification
7 1 (0.87%) CCNA
7 1 (0.87%) Citrix Certification
7 1 (0.87%) CCIE
7 1 (0.87%) CCSP
7 1 (0.87%) GNVQ
7 1 (0.87%) CCENT
7 1 (0.87%) MCITP
7 1 (0.87%) CCVP
Quality Assurance & Compliance
1 4 (3.48%) QA
2 2 (1.74%) SLA
System Software
1 46 (40.00%) VMware Infrastructure
2 33 (28.70%) KVM
3 29 (25.22%) Xen
4 13 (11.30%) Active Directory
5 10 (8.70%) vSphere
6 7 (6.09%) VMware ESXi
7 5 (4.35%) Docker
7 5 (4.35%) LXC
7 5 (4.35%) Samba
8 4 (3.48%) Hyper-V
9 3 (2.61%) Varnish
9 3 (2.61%) NFS
9 3 (2.61%) XenServer
9 3 (2.61%) Oracle RAC
10 2 (1.74%) vCloud
11 1 (0.87%) Cygwin
11 1 (0.87%) Ceph
11 1 (0.87%) Firmware
11 1 (0.87%) Postfix
Systems Management
1 61 (53.04%) Puppet
2 56 (48.70%) Nagios
3 45 (39.13%) Cacti
4 34 (29.57%) Ansible
5 33 (28.70%) Salt
5 33 (28.70%) ZABBIX
6 32 (27.83%) CFEngine
7 20 (17.39%) Opscode Chef
8 5 (4.35%) Vagrant
9 3 (2.61%) SCOM
10 2 (1.74%) SCCM
10 2 (1.74%) ITRS Geneos
10 2 (1.74%) HAProxy
10 2 (1.74%) Sysprep
11 1 (0.87%) Red Hat Satellite
11 1 (0.87%) Red Hat Spacewalk
11 1 (0.87%) Capistrano
11 1 (0.87%) StatsD
11 1 (0.87%) logstash
11 1 (0.87%) Check_MK
Vendors
1 89 (77.39%) Red Hat
2 61 (53.04%) VMware
3 39 (33.91%) Oracle
4 38 (33.04%) F5
5 30 (26.09%) Citrix
6 18 (15.65%) Cisco
7 10 (8.70%) Microsoft
8 7 (6.09%) Riverbed
9 5 (4.35%) Akamai
9 5 (4.35%) Juniper
9 5 (4.35%) HP
10 4 (3.48%) Bloomberg
11 2 (1.74%) Zend
11 2 (1.74%) Brocade
11 2 (1.74%) Reuters
11 2 (1.74%) NetApp
11 2 (1.74%) Dell
11 2 (1.74%) EMC
11 2 (1.74%) Zoho
11 2 (1.74%) Rackspace
City, London
Bridge Noble
Salary: £35000 - £45000 per annum + Excellent Benefits
Posted: 12 hours ago
City of London
Sovereign Business Resources
Salary: £55000 - £60000 per annum + benefits
Posted: 15 hours ago
City, London
McGregor Boyall
Salary: £50000 - £70000 per annum + Package
Posted: 6 days ago
City of London
Bridge Noble
Salary: £35000 - £45000 per annum + Excellent Benefits
Posted: 20 days ago