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 20 August 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
20 Aug 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 264 264 284
Rank change year-on-year
0 +20
Permanent jobs citing CentOS 67 63 46
As % of all permanent IT jobs located in the City of London 0.56% 0.52% 0.35%
As % of the Operating Systems category 2.09% 1.90% 1.30%
Number of salaries quoted 67 57 40
Average salary £45,000 £52,500 £42,500
Average salary % change year-on-year
-14.28% +23.52%
90% offered a salary of more than £40,000 £39,000 £32,500
10% offered a salary of more than £57,500 £67,500 £62,750
UK excluding London average salary £41,500 £38,750 £35,000
% change year-on-year
+7.09% +10.71%
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
3206 3312 3526
As % of all permanent IT jobs located in the City of London 26.91% 27.34% 26.98%
Number of salaries quoted 2808 2968 3273
Average salary £50,000 £51,250 £47,500
Average salary % change year-on-year
-2.43% +7.89%
90% offered a salary of more than £29,000 £32,500 £29,000
10% offered a salary of more than £72,500 £70,000 £72,500
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 20 August 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 20 August 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.

1 106 (95.50%) Linux
2 84 (75.68%) Red Hat
3 68 (61.26%) Python
4 65 (58.56%) Bash Shell
5 62 (55.86%) Apache
6 59 (53.15%) Perl
7 58 (52.25%) MySQL
7 58 (52.25%) Puppet
8 53 (47.75%) Nagios
9 51 (45.95%) VMware
10 49 (44.14%) Tomcat
11 48 (43.24%) Ruby
11 48 (43.24%) Ubuntu
11 48 (43.24%) Red Hat Enterprise Linux
12 42 (37.84%) VMware Infrastructure
12 42 (37.84%) Cacti
13 41 (36.94%) Load Balancing
14 39 (35.14%) nginx
15 37 (33.33%) ZABBIX
15 37 (33.33%) Agile Software Development
16 36 (32.43%) Oracle
17 35 (31.53%) JBoss
17 35 (31.53%) ITIL
17 35 (31.53%) Salt
18 34 (30.63%) Citrix
19 32 (28.83%) WebLogic
19 32 (28.83%) Windows
19 32 (28.83%) KVM
19 32 (28.83%) CFEngine
19 32 (28.83%) F5

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

For the 6 months to 20 August 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 62 (55.86%) Apache
2 49 (44.14%) Tomcat
3 39 (35.14%) nginx
4 32 (28.83%) WebLogic
5 5 (4.50%) IIS
6 4 (3.60%) Drupal
6 4 (3.60%) MS Exchange
6 4 (3.60%) Apache Solr
6 4 (3.60%) OpenStack
7 3 (2.70%) Exchange Server 2010
7 3 (2.70%) Confluence
7 3 (2.70%) Jetty
8 2 (1.80%) Node.js
8 2 (1.80%) Exchange Server 2013
8 2 (1.80%) Elasticsearch
8 2 (1.80%) Exchange Server 2007
8 2 (1.80%) GlassFish
9 1 (0.90%) Lync
Applications
1 5 (4.50%) MS Excel
2 1 (0.90%) MS Visio
2 1 (0.90%) Doxygen
Business Applications
1 1 (0.90%) SAP Oil and Gas
1 1 (0.90%) Magento
Cloud Services
1 5 (4.50%) Amazon AWS
2 3 (2.70%) SaaS
3 1 (0.90%) Office 365
Communications & Networking
1 29 (26.13%) BIG-IP
1 29 (26.13%) NetScaler
1 29 (26.13%) F5 BIG-IP LTM
2 27 (24.32%) TCP/IP
3 22 (19.82%) DNS
4 17 (15.32%) Firewall
5 15 (13.51%) SAN
6 14 (12.61%) VPN
6 14 (12.61%) DHCP
7 12 (10.81%) HTTP
8 11 (9.91%) LAN
9 10 (9.01%) SMTP
10 9 (8.11%) SSL
11 8 (7.21%) WAN
11 8 (7.21%) LDAP
11 8 (7.21%) IPsec
12 7 (6.31%) NAS
13 6 (5.41%) OpenVPN
13 6 (5.41%) Cisco ASA
13 6 (5.41%) Wireless
Database & Business Intelligence
1 58 (52.25%) MySQL
2 28 (25.23%) DB2
3 7 (6.31%) PostgreSQL
3 7 (6.31%) MongoDB
3 7 (6.31%) NoSQL
4 6 (5.41%) Redis
5 5 (4.50%) SQL Server
6 2 (1.80%) Apache Cassandra
6 2 (1.80%) MariaDB
7 1 (0.90%) Amazon DynamoDB
7 1 (0.90%) Couchbase
7 1 (0.90%) Hadoop
7 1 (0.90%) CouchDB
Development Applications
1 18 (16.22%) Git (software)
2 11 (9.91%) Jenkins
3 10 (9.01%) Subversion
4 9 (8.11%) JIRA
5 7 (6.31%) Mercurial
6 4 (3.60%) Hudson
7 2 (1.80%) Gerrit
7 2 (1.80%) PHPUnit
7 2 (1.80%) Maven
8 1 (0.90%) Atlassian Bamboo
8 1 (0.90%) Cucumber
8 1 (0.90%) Behat
8 1 (0.90%) Trac
8 1 (0.90%) Karma Test Runner
General
1 8 (7.21%) Finance
2 6 (5.41%) Publishing
3 5 (4.50%) Games
4 3 (2.70%) Law
4 3 (2.70%) Back Office
4 3 (2.70%) Marketing
5 1 (0.90%) Electronics
5 1 (0.90%) Telecoms
5 1 (0.90%) Manufacturing
5 1 (0.90%) Advertising
5 1 (0.90%) Banking
5 1 (0.90%) Retail
5 1 (0.90%) Investment Banking
Job Titles
1 61 (54.95%) Administrator
2 50 (45.05%) Linux Administrator
3 34 (30.63%) Systems Administrator
4 28 (25.23%) Linux Engineer
5 20 (18.02%) Linux Systems Administrator
6 10 (9.01%) Senior Linux Engineer
7 8 (7.21%) DevOps Engineer
8 7 (6.31%) Systems Engineer
9 6 (5.41%) Network Engineer
9 6 (5.41%) Senior Systems Administrator
9 6 (5.41%) Senior DevOps Engineer
10 5 (4.50%) Senior Systems Engineer
11 4 (3.60%) Consultant
11 4 (3.60%) Technical Support
11 4 (3.60%) Technical Consultant
11 4 (3.60%) Team Leader
11 4 (3.60%) Linux DevOps Engineer
11 4 (3.60%) Lead Systems Engineer
12 3 (2.70%) Senior Linux Administrator
12 3 (2.70%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 17 (15.32%) XML
2 6 (5.41%) Web Services
2 6 (5.41%) LAMP
3 5 (4.50%) .NET
4 3 (2.70%) HTML
4 3 (2.70%) Symfony
5 2 (1.80%) Zend Framework
5 2 (1.80%) MSMQ
5 2 (1.80%) CSS
5 2 (1.80%) HTML5
5 2 (1.80%) RabbitMQ
5 2 (1.80%) Yii
5 2 (1.80%) Java EE
5 2 (1.80%) Laravel
6 1 (0.90%) Backbone.js
6 1 (0.90%) AngularJS
6 1 (0.90%) JSON
6 1 (0.90%) Apache Flex
6 1 (0.90%) REST
6 1 (0.90%) CSS3
Miscellaneous
1 12 (10.81%) Open Source
2 8 (7.21%) Clustering
3 6 (5.41%) Computer Science
4 3 (2.70%) Replication
4 3 (2.70%) PKI
5 2 (1.80%) Hedge funds
5 2 (1.80%) Digital Media
5 2 (1.80%) Video Editing
5 2 (1.80%) Mathematics
5 2 (1.80%) Physics
6 1 (0.90%) Data Protection Act
6 1 (0.90%) Enterprise Software
6 1 (0.90%) Derivative
6 1 (0.90%) Animation
6 1 (0.90%) DTV
6 1 (0.90%) Management Information System
6 1 (0.90%) Mobile Games
6 1 (0.90%) Streaming Video
6 1 (0.90%) Wiki
6 1 (0.90%) Online Gambling
Operating Systems
1 106 (95.50%) Linux
2 48 (43.24%) Ubuntu
2 48 (43.24%) Red Hat Enterprise Linux
3 32 (28.83%) Windows
4 16 (14.41%) Debian
5 14 (12.61%) UNIX
6 13 (11.71%) Windows Server 2008
7 9 (8.11%) Windows Server 2012
8 8 (7.21%) Windows Server 2003
9 6 (5.41%) Mac OS X
10 4 (3.60%) Solaris
11 3 (2.70%) Fedora
11 3 (2.70%) Windows 7
12 1 (0.90%) Apple iOS
12 1 (0.90%) Android
12 1 (0.90%) SUSE
Processes & Methodologies
1 41 (36.94%) Load Balancing
2 37 (33.33%) Agile Software Development
3 35 (31.53%) ITIL
4 28 (25.23%) Statistical Analysis
5 21 (18.92%) DevOps
6 14 (12.61%) Configuration Management
7 11 (9.91%) Continuous Integration
8 7 (6.31%) Asset Management
9 5 (4.50%) Security Management
9 5 (4.50%) Change Control
10 4 (3.60%) Performance Tuning
10 4 (3.60%) E-Commerce
10 4 (3.60%) Software Engineering
10 4 (3.60%) Load Testing
11 3 (2.70%) Use Case
11 3 (2.70%) Low Latency
11 3 (2.70%) Root Cause Analysis
11 3 (2.70%) Capacity Planning
12 2 (1.80%) BDD
12 2 (1.80%) High Availability
Programming Languages
1 68 (61.26%) Python
2 65 (58.56%) Bash Shell
3 59 (53.15%) Perl
4 48 (43.24%) Ruby
5 22 (19.82%) SQL
6 18 (16.22%) PHP
7 13 (11.71%) Java
8 7 (6.31%) JavaScript
8 7 (6.31%) Shell Script
9 5 (4.50%) PowerShell
10 2 (1.80%) PHP5
10 2 (1.80%) VBScript
11 1 (0.90%) VB
11 1 (0.90%) AWK
11 1 (0.90%) Scala
11 1 (0.90%) C
11 1 (0.90%) C++
11 1 (0.90%) T-SQL
11 1 (0.90%) sed
Qualifications
1 16 (14.41%) Degree
2 7 (6.31%) Security Cleared
2 7 (6.31%) Cisco Certification
3 5 (4.50%) Microsoft Certification
4 4 (3.60%) RHCE
4 4 (3.60%) CCNP
4 4 (3.60%) VMware Certified Professional (VCP)
5 3 (2.70%) CCNA
5 3 (2.70%) SC Cleared
5 3 (2.70%) MCP
5 3 (2.70%) MCSE
6 2 (1.80%) A+ Certification
7 1 (0.90%) CCVP
7 1 (0.90%) CCIE
7 1 (0.90%) CCSP
7 1 (0.90%) CCENT
7 1 (0.90%) GNVQ
7 1 (0.90%) Citrix Certification
7 1 (0.90%) MCITP
Quality Assurance & Compliance
1 6 (5.41%) QA
2 4 (3.60%) PCI DSS
3 2 (1.80%) SLA
3 2 (1.80%) ISO/IEC 27001
System Software
1 42 (37.84%) VMware Infrastructure
2 32 (28.83%) KVM
3 29 (26.13%) Xen
4 14 (12.61%) NFS
5 12 (10.81%) Active Directory
6 9 (8.11%) Hyper-V
7 8 (7.21%) Postfix
8 7 (6.31%) Samba
9 6 (5.41%) Varnish
10 5 (4.50%) XenApp
10 5 (4.50%) vSphere
11 4 (3.60%) VirtualBox
11 4 (3.60%) Sendmail
12 3 (2.70%) VMware ESXi
12 3 (2.70%) Oracle RAC
13 2 (1.80%) FreeRADIUS
13 2 (1.80%) Squid
13 2 (1.80%) Docker
14 1 (0.90%) Terminal Services
14 1 (0.90%) vCloud
Systems Management
1 58 (52.25%) Puppet
2 53 (47.75%) Nagios
3 42 (37.84%) Cacti
4 37 (33.33%) ZABBIX
5 35 (31.53%) Salt
6 32 (28.83%) CFEngine
7 29 (26.13%) Ansible
8 21 (18.92%) Opscode Chef
9 7 (6.31%) Vagrant
10 5 (4.50%) SCOM
10 5 (4.50%) Capistrano
11 2 (1.80%) Sysprep
11 2 (1.80%) SCCM
11 2 (1.80%) ITRS Geneos
11 2 (1.80%) logstash
12 1 (0.90%) Kibana
12 1 (0.90%) Graylog2
12 1 (0.90%) Check_MK
12 1 (0.90%) StatsD
12 1 (0.90%) HAProxy
Vendors
1 84 (75.68%) Red Hat
2 51 (45.95%) VMware
3 36 (32.43%) Oracle
4 35 (31.53%) JBoss
5 34 (30.63%) Citrix
6 32 (28.83%) F5
7 12 (10.81%) Cisco
8 9 (8.11%) HP
9 6 (5.41%) Juniper
9 6 (5.41%) Microsoft
10 4 (3.60%) Bloomberg
11 3 (2.70%) Zend
11 3 (2.70%) Atlassian
11 3 (2.70%) Riverbed
12 2 (1.80%) Zoho
12 2 (1.80%) Rackspace
12 2 (1.80%) Vyatta
12 2 (1.80%) SaltStack
12 2 (1.80%) Akamai
12 2 (1.80%) Reuters
City, London
Oscar Associates (UK) Ltd
Salary: £35000 - £40000 per annum + Benefits
Posted: 2 hours ago
City, London
Greywood Associates Limited
Salary: £45000 - £50000 per annum + bens
Posted: 8 hours ago
City, London
Oscar Associates (UK) Ltd
Salary: £35000 - £40000 per annum + Benefits
Posted: Yesterday
City of London
Huxley Associates
Salary: £45000 - £60000 per annum + benefits + bonus
Posted: Yesterday
City, London
Mortimer Spinks
Salary: £50000 - £65000 per annum
Posted: Yesterday
City, London
Apollo Solutions
Salary: £35000 - £43000 per annum + excellent benefits
Posted: 2 days ago
City, London
TEKsystems
Salary: £40 - £45 per annum
Posted: 6 days ago
City of London
Huxley Associates
Salary: £50000 - £60000 per annum + benefits + bonus
Posted: 7 days ago
City of London
Huxley Associates
Salary: £50000 - £60000 per annum + benefits + bonus
Posted: 8 days ago
City, London
Bridge Noble
Salary: £50,000 - £65,000 per annum + experience dependent
Posted: 14 days ago
City of London
NFP Group Ltd
Salary: £45000 - £55000 per annum
Posted: 23 days ago
City of London
Huxley Associates
Salary: competitive
Posted: 26 days ago