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 18 September 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
18 Sep 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 254 249 290
Rank change year-on-year
-5 +41
Permanent jobs citing CentOS 64 72 50
As % of all permanent IT jobs located in the City of London 0.56% 0.62% 0.40%
As % of the Operating Systems category 2.07% 2.32% 1.47%
Number of salaries quoted 64 65 43
Average salary £45,000 £57,500 £42,500
Average salary % change year-on-year
-21.73% +35.29%
90% offered a salary of more than £40,000 £40,500 £27,500
10% offered a salary of more than £59,250 £67,500 £59,000
UK excluding London average salary £41,500 £40,000 £37,500
% change year-on-year
+3.75% +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
3091 3109 3407
As % of all permanent IT jobs located in the City of London 26.92% 26.66% 27.05%
Number of salaries quoted 2727 2799 3161
Average salary £50,000 £50,000 £47,500
Average salary % change year-on-year
- +5.26%
90% offered a salary of more than £28,500 £32,500 £29,000
10% offered a salary of more than £72,500 £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 18 September 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 18 September 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 99 (96.12%) Linux
2 76 (73.79%) Red Hat
3 60 (58.25%) Python
4 58 (56.31%) Bash Shell
5 55 (53.40%) Perl
5 55 (53.40%) Puppet
6 53 (51.46%) MySQL
7 52 (50.49%) Apache
7 52 (50.49%) VMware
8 51 (49.51%) Nagios
9 48 (46.60%) Ruby
10 47 (45.63%) Red Hat Enterprise Linux
11 46 (44.66%) Agile Software Development
12 44 (42.72%) Tomcat
13 43 (41.75%) Ubuntu
14 42 (40.78%) Cacti
15 41 (39.81%) VMware Infrastructure
16 39 (37.86%) Load Balancing
17 37 (35.92%) ITIL
18 36 (34.95%) Oracle
19 35 (33.98%) JBoss
19 35 (33.98%) ZABBIX
20 34 (33.01%) Salt
20 34 (33.01%) nginx
21 33 (32.04%) F5
22 32 (31.07%) CFEngine
22 32 (31.07%) WebLogic
23 31 (30.10%) Citrix
23 31 (30.10%) KVM
24 29 (28.16%) Xen

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

For the 6 months to 18 September 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 52 (50.49%) Apache
2 44 (42.72%) Tomcat
3 34 (33.01%) nginx
4 32 (31.07%) WebLogic
5 5 (4.85%) IIS
6 4 (3.88%) OpenStack
7 3 (2.91%) Confluence
7 3 (2.91%) Node.js
8 2 (1.94%) MS Exchange
8 2 (1.94%) Elasticsearch
9 1 (0.97%) Lync
9 1 (0.97%) Exchange Server 2010
9 1 (0.97%) Exchange Server 2013
9 1 (0.97%) Apache Solr
9 1 (0.97%) Jetty
9 1 (0.97%) Drupal
9 1 (0.97%) Exchange Server 2007
Applications
1 5 (4.85%) MS Excel
2 1 (0.97%) MS Visio
2 1 (0.97%) Doxygen
Business Applications
1 1 (0.97%) Magento
1 1 (0.97%) SAP Oil and Gas
Cloud Services
1 7 (6.80%) Amazon AWS
2 3 (2.91%) SaaS
Communications & Networking
1 29 (28.16%) F5 BIG-IP LTM
2 28 (27.18%) NetScaler
2 28 (27.18%) BIG-IP
3 23 (22.33%) TCP/IP
4 19 (18.45%) DNS
5 14 (13.59%) HTTP
5 14 (13.59%) DHCP
5 14 (13.59%) Firewall
6 12 (11.65%) SAN
7 11 (10.68%) VPN
8 10 (9.71%) WAN
9 9 (8.74%) LAN
9 9 (8.74%) SSL
10 8 (7.77%) Cisco ASA
10 8 (7.77%) VLAN
10 8 (7.77%) OSPF
10 8 (7.77%) BGP
10 8 (7.77%) Wireless
10 8 (7.77%) IPsec
10 8 (7.77%) SMTP
Database & Business Intelligence
1 53 (51.46%) MySQL
2 28 (27.18%) DB2
3 8 (7.77%) MongoDB
4 7 (6.80%) NoSQL
5 6 (5.83%) Redis
6 5 (4.85%) SQL Server
6 5 (4.85%) PostgreSQL
7 2 (1.94%) MariaDB
7 2 (1.94%) Apache Cassandra
8 1 (0.97%) Couchbase
8 1 (0.97%) Amazon DynamoDB
8 1 (0.97%) Hadoop
8 1 (0.97%) CouchDB
Development Applications
1 13 (12.62%) Git (software)
2 9 (8.74%) Jenkins
2 9 (8.74%) JIRA
3 7 (6.80%) Subversion
4 2 (1.94%) Maven
4 2 (1.94%) Mercurial
4 2 (1.94%) Trac
4 2 (1.94%) PHPUnit
4 2 (1.94%) Gerrit
5 1 (0.97%) Cucumber
5 1 (0.97%) Behat
5 1 (0.97%) Hudson
5 1 (0.97%) Karma Test Runner
5 1 (0.97%) Atlassian Bamboo
General
1 8 (7.77%) Finance
2 5 (4.85%) Back Office
3 4 (3.88%) Games
4 3 (2.91%) Law
4 3 (2.91%) Marketing
4 3 (2.91%) Publishing
5 2 (1.94%) Advertising
5 2 (1.94%) Telecoms
6 1 (0.97%) Manufacturing
6 1 (0.97%) Electronics
6 1 (0.97%) Investment Banking
6 1 (0.97%) Banking
6 1 (0.97%) Retail
Job Titles
1 57 (55.34%) Administrator
2 45 (43.69%) Linux Administrator
3 30 (29.13%) Systems Administrator
4 26 (25.24%) Linux Engineer
5 15 (14.56%) Linux Systems Administrator
6 7 (6.80%) Network Engineer
6 7 (6.80%) Senior Linux Engineer
7 6 (5.83%) Senior Systems Administrator
8 5 (4.85%) Senior Network Engineer
9 4 (3.88%) Systems Engineer
9 4 (3.88%) Developer
9 4 (3.88%) DevOps Engineer
10 3 (2.91%) Senior DevOps Engineer
10 3 (2.91%) Senior Linux Administrator
11 2 (1.94%) PHP Developer
11 2 (1.94%) Senior Linux Systems Administrator
11 2 (1.94%) Desktop Support Specialist
11 2 (1.94%) Consultant
11 2 (1.94%) Technical Consultant
11 2 (1.94%) Technical Support
Libraries, Frameworks & Software Standards
1 17 (16.50%) XML
2 9 (8.74%) Web Services
2 9 (8.74%) LAMP
3 4 (3.88%) HTML
4 3 (2.91%) HTML5
4 3 (2.91%) CSS
4 3 (2.91%) Symfony
5 2 (1.94%) Zend Framework
5 2 (1.94%) jQuery
5 2 (1.94%) RESTful
5 2 (1.94%) MSMQ
5 2 (1.94%) .NET
5 2 (1.94%) Laravel
5 2 (1.94%) Yii
5 2 (1.94%) RabbitMQ
5 2 (1.94%) CSS3
5 2 (1.94%) AngularJS
6 1 (0.97%) ExpressJS
6 1 (0.97%) REST
6 1 (0.97%) Backbone.js
Miscellaneous
1 10 (9.71%) Open Source
2 7 (6.80%) Analytical Skills
3 6 (5.83%) Clustering
3 6 (5.83%) Computer Science
4 2 (1.94%) Replication
4 2 (1.94%) PKI
4 2 (1.94%) Video Editing
4 2 (1.94%) Mathematics
4 2 (1.94%) Physics
4 2 (1.94%) Digital Media
4 2 (1.94%) Hedge funds
5 1 (0.97%) Enterprise Software
5 1 (0.97%) DTV
5 1 (0.97%) Management Information System
5 1 (0.97%) Online Gambling
5 1 (0.97%) Data Protection Act
5 1 (0.97%) Wiki
5 1 (0.97%) Derivative
5 1 (0.97%) Animation
5 1 (0.97%) Mobile Games
Operating Systems
1 99 (96.12%) Linux
2 47 (45.63%) Red Hat Enterprise Linux
3 43 (41.75%) Ubuntu
4 26 (25.24%) Windows
5 11 (10.68%) UNIX
5 11 (10.68%) Debian
6 9 (8.74%) Windows Server 2008
7 8 (7.77%) Windows Server 2003
8 6 (5.83%) Windows Server 2012
9 4 (3.88%) Fedora
9 4 (3.88%) Mac OS X
9 4 (3.88%) Solaris
10 1 (0.97%) Apple iOS
10 1 (0.97%) Windows 7
10 1 (0.97%) Android
10 1 (0.97%) SUSE
Processes & Methodologies
1 46 (44.66%) Agile Software Development
2 39 (37.86%) Load Balancing
3 37 (35.92%) ITIL
4 28 (27.18%) Statistical Analysis
5 19 (18.45%) DevOps
6 11 (10.68%) Configuration Management
7 8 (7.77%) Continuous Integration
8 7 (6.80%) Change Control
9 6 (5.83%) Performance Tuning
10 5 (4.85%) Root Cause Analysis
10 5 (4.85%) Use Case
11 4 (3.88%) Asset Management
11 4 (3.88%) Mentoring
12 3 (2.91%) Capacity Planning
12 3 (2.91%) Low Latency
12 3 (2.91%) TDD
13 2 (1.94%) Scrum
13 2 (1.94%) Software Engineering
13 2 (1.94%) Data Security
13 2 (1.94%) Security Management
Programming Languages
1 60 (58.25%) Python
2 58 (56.31%) Bash Shell
3 55 (53.40%) Perl
4 48 (46.60%) Ruby
5 20 (19.42%) PHP
6 16 (15.53%) SQL
7 11 (10.68%) Java
8 6 (5.83%) PowerShell
8 6 (5.83%) JavaScript
9 3 (2.91%) Shell Script
10 2 (1.94%) PHP5
11 1 (0.97%) sed
11 1 (0.97%) TypeScript
11 1 (0.97%) C
11 1 (0.97%) C++
11 1 (0.97%) T-SQL
11 1 (0.97%) PowerHouse
11 1 (0.97%) Scala
11 1 (0.97%) AWK
Qualifications
1 15 (14.56%) Degree
2 9 (8.74%) Cisco Certification
3 6 (5.83%) VMware Certified Professional (VCP)
3 6 (5.83%) Security Cleared
3 6 (5.83%) RHCE
3 6 (5.83%) CCNP
4 4 (3.88%) Microsoft Certification
5 3 (2.91%) MCSE
5 3 (2.91%) MCP
5 3 (2.91%) CCNA
6 2 (1.94%) A+ Certification
7 1 (0.97%) CCIE
7 1 (0.97%) CCSP
7 1 (0.97%) Citrix Certification
7 1 (0.97%) GNVQ
7 1 (0.97%) CCENT
7 1 (0.97%) MCITP
7 1 (0.97%) CCVP
Quality Assurance & Compliance
1 5 (4.85%) QA
2 2 (1.94%) ISO/IEC 27001
2 2 (1.94%) PCI DSS
2 2 (1.94%) SLA
System Software
1 41 (39.81%) VMware Infrastructure
2 31 (30.10%) KVM
3 29 (28.16%) Xen
4 11 (10.68%) Active Directory
5 7 (6.80%) vSphere
5 7 (6.80%) NFS
5 7 (6.80%) Samba
6 6 (5.83%) Hyper-V
7 5 (4.85%) VMware ESXi
8 4 (3.88%) Docker
8 4 (3.88%) Varnish
9 3 (2.91%) Oracle RAC
10 2 (1.94%) Squid
10 2 (1.94%) XenApp
11 1 (0.97%) VirtualBox
11 1 (0.97%) Cygwin
11 1 (0.97%) XenServer
11 1 (0.97%) vCloud
11 1 (0.97%) Postfix
Systems Management
1 55 (53.40%) Puppet
2 51 (49.51%) Nagios
3 42 (40.78%) Cacti
4 35 (33.98%) ZABBIX
5 34 (33.01%) Salt
6 32 (31.07%) CFEngine
7 29 (28.16%) Ansible
8 20 (19.42%) Opscode Chef
9 6 (5.83%) Vagrant
10 4 (3.88%) SCOM
11 2 (1.94%) SCCM
11 2 (1.94%) HAProxy
11 2 (1.94%) logstash
11 2 (1.94%) ITRS Geneos
11 2 (1.94%) Sysprep
11 2 (1.94%) Capistrano
12 1 (0.97%) Red Hat Satellite
12 1 (0.97%) Red Hat Spacewalk
12 1 (0.97%) StatsD
12 1 (0.97%) Check_MK
Vendors
1 76 (73.79%) Red Hat
2 52 (50.49%) VMware
3 36 (34.95%) Oracle
4 35 (33.98%) JBoss
5 33 (32.04%) F5
6 31 (30.10%) Citrix
7 14 (13.59%) Cisco
8 6 (5.83%) HP
9 5 (4.85%) Microsoft
9 5 (4.85%) Juniper
9 5 (4.85%) Riverbed
10 4 (3.88%) Bloomberg
10 4 (3.88%) Akamai
11 3 (2.91%) Atlassian
11 3 (2.91%) Zend
12 2 (1.94%) Reuters
12 2 (1.94%) Dell
12 2 (1.94%) Rackspace
12 2 (1.94%) Vyatta
12 2 (1.94%) Zoho
City, London
Client Server
Salary: £30k to £45k + bonus + benefits
Posted: 19 hours ago
City, London
Greywood Associates Limited
Salary: £45000 - £50000 per annum + bens
Posted: 20 hours ago
City, London
Digitech Resourcing Ltd
Salary: From £50,000 to £60,000 per annum + benefits
Posted: 22 hours ago
City, London
Opus Recruitment Solutions Ltd
Salary: £50000 to £60000 per annum
Posted: 2 days ago
City, London
IT People First
Salary: From £30,000 to £40,000 per annum Negotiable + Benefits
Posted: 3 days ago
City, London
Stott & May
Salary: £50000 - £55000 Per Annum Pension, Holidays
Posted: 6 days ago
City, London
Oscar Associates (UK) Ltd
Salary: £35000 - £40000 per annum + Benefits
Posted: 6 days ago
City, London
Oscar Associates (UK) Ltd
Salary: £35000 - £45000 per annum + Benefits
Posted: 6 days ago
City of London
Computer Futures
Salary: £65000 - £70000 per annum + competitive
Posted: 14 days ago
City of London
Huxley Associates
Salary: £45000 - £60000 per annum + benefits + bonus
Posted: 27 days ago