The table below looks at the statistics for CentOS skills in IT jobs advertised for the London region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 30 March 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
30 Mar 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 337 334 346
Rank change year-on-year
-3 +12
Permanent jobs citing CentOS 342 339 299
As % of all permanent IT jobs located in London 0.79% 0.74% 0.68%
As % of the Operating Systems category 2.82% 2.66% 2.57%
Number of salaries quoted 289 299 272
Average salary £52,500 £50,000 £44,500
Average salary % change year-on-year
+5.00% +12.35%
90% offered a salary of more than £36,000 £35,000 £32,500
10% offered a salary of more than £67,500 £65,000 £62,500
UK excluding London average salary £42,000 £40,000 £36,500
% change year-on-year
+5.00% +9.58%
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 London region.

Operating Systems Category
London
Permanent IT job ads with a match in the
Operating Systems category
12117 12746 11643
As % of all permanent IT jobs located in London 28.10% 27.81% 26.42%
Number of salaries quoted 10369 10766 9955
Average salary £49,500 £47,500 £46,500
Average salary % change year-on-year
+4.21% +2.15%
90% offered a salary of more than £27,500 £28,000 £30,000
10% offered a salary of more than £72,500 £70,000 £75,000
UK excluding London average salary £37,500 £37,500 £37,500

CentOS
Jobs Demand Trend in London

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

CentOS Jobs Demand Trend in London

CentOS
Salary Trend in London

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

CentOS Salary Trend in London

CentOS
Salary Histogram in London

This chart provides a salary histogram for IT jobs citing CentOS across the London region over the 3 months to 30 March 2015.

CentOS Salary Histogram in London

CentOS
Job Locations in London

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing CentOS within the London region over the 3 months to 30 March 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
City of London -11 45 £52,500 +5.00% 8
Hammersmith +3 11 £47,500 +58.33%
Bermondsey - 3 - -
Twickenham - 2 £60,000 -
Croydon +13 1 £30,000 -11.11% 1
Isleworth - 1 £70,000 -
Uxbridge - 1 £21,500 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 30 March 2015, IT jobs across the 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.

1 692 (97.05%) Linux
2 426 (59.75%) Red Hat
3 355 (49.79%) Red Hat Enterprise Linux
4 323 (45.30%) Puppet
5 317 (44.46%) Python
6 301 (42.22%) VMware
7 295 (41.37%) Bash Shell
8 275 (38.57%) MySQL
9 243 (34.08%) Apache
10 237 (33.24%) Windows
11 211 (29.59%) Perl
11 211 (29.59%) PHP
12 201 (28.19%) Ubuntu
13 196 (27.49%) Java
14 192 (26.93%) DevOps
15 189 (26.51%) VMware Infrastructure
16 186 (26.09%) Ruby
17 175 (24.54%) Opscode Chef
18 171 (23.98%) Tomcat
19 161 (22.58%) Git (software)
20 148 (20.76%) Firewall
21 145 (20.34%) Nagios
21 145 (20.34%) DNS
21 145 (20.34%) Amazon AWS
22 143 (20.06%) Agile Software Development
23 139 (19.50%) TCP/IP
23 139 (19.50%) Configuration Management
24 138 (19.35%) Web Services
24 138 (19.35%) SQL
25 129 (18.09%) Debian

CentOS
Top Related IT Skills in London by Category

For the 6 months to 30 March 2015, IT jobs across the 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
1 243 (34.08%) Apache
2 171 (23.98%) Tomcat
3 118 (16.55%) nginx
4 71 (9.96%) IIS
5 57 (7.99%) MS Exchange
6 48 (6.73%) JBoss
7 37 (5.19%) OpenStack
8 34 (4.77%) Confluence
9 27 (3.79%) Elasticsearch
10 26 (3.65%) Exchange Server 2010
11 25 (3.51%) Node.js
12 16 (2.24%) Cloud Foundry
13 15 (2.10%) Moodle
14 14 (1.96%) Lync
15 11 (1.54%) Apache Solr
16 10 (1.40%) SharePoint
17 9 (1.26%) WordPress
18 8 (1.12%) Drupal
19 7 (0.98%) MediaWiki
20 6 (0.84%) Jetty
Applications
1 55 (7.71%) MS Excel
2 6 (0.84%) MS Office
3 4 (0.56%) Photoshop
4 2 (0.28%) Maya
Business Applications
1 11 (1.54%) Dynamics CRM
1 11 (1.54%) Magento
2 5 (0.70%) Oracle General Ledger
3 1 (0.14%) Cordys
3 1 (0.14%) RMDS
Cloud Services
1 145 (20.34%) Amazon AWS
2 53 (7.43%) Amazon EC2
3 30 (4.21%) Amazon S3
4 28 (3.93%) PaaS
5 27 (3.79%) Office 365
6 23 (3.23%) GitHub
7 18 (2.52%) SaaS
8 17 (2.38%) Microsoft Azure
9 16 (2.24%) Rackspace Cloud
9 16 (2.24%) Cloud Computing
10 14 (1.96%) IaaS
11 10 (1.40%) AWS CloudFormation
11 10 (1.40%) Heroku
11 10 (1.40%) Engine Yard
12 9 (1.26%) Route 53
12 9 (1.26%) Amazon ELB
13 5 (0.70%) Virtual Private Cloud
14 4 (0.56%) Datadog
14 4 (0.56%) Joyent
15 3 (0.42%) Amazon SQS
Communications & Networking
1 148 (20.76%) Firewall
2 145 (20.34%) DNS
3 139 (19.50%) TCP/IP
4 121 (16.97%) VPN
5 94 (13.18%) SAN
6 84 (11.78%) LDAP
7 76 (10.66%) WAN
8 71 (9.96%) LAN
9 60 (8.42%) HTTP
10 56 (7.85%) SMTP
11 47 (6.59%) VLAN
12 39 (5.47%) SSL
13 37 (5.19%) SNMP
14 36 (5.05%) iSCSI
15 32 (4.49%) MPLS
15 32 (4.49%) BGP
16 30 (4.21%) IPsec
16 30 (4.21%) DHCP
16 30 (4.21%) Internet
17 29 (4.07%) VoIP
Database & Business Intelligence
1 275 (38.57%) MySQL
2 91 (12.76%) MongoDB
3 69 (9.68%) SQL Server
4 64 (8.98%) PostgreSQL
5 62 (8.70%) Redis
6 57 (7.99%) Relational Database
7 53 (7.43%) NoSQL
8 23 (3.23%) Apache Cassandra
9 22 (3.09%) Amazon DynamoDB
10 19 (2.66%) MariaDB
11 18 (2.52%) Big Data
12 16 (2.24%) Couchbase
12 16 (2.24%) Hadoop
13 13 (1.82%) RDBMS
14 11 (1.54%) CouchDB
15 10 (1.40%) Amazon RDS
16 8 (1.12%) SQL Server 2005
17 5 (0.70%) SQL Server 2008
17 5 (0.70%) Informix
18 4 (0.56%) SQL Server Integration Services
Development Applications
1 161 (22.58%) Git (software)
2 124 (17.39%) Jenkins
3 68 (9.54%) Subversion
4 57 (7.99%) JIRA
5 48 (6.73%) Maven
6 20 (2.81%) Ant
6 20 (2.81%) Hudson
7 18 (2.52%) Atlassian Bamboo
8 16 (2.24%) Selenium
8 16 (2.24%) Eclipse
8 16 (2.24%) Behat
9 15 (2.10%) SoapUI
9 15 (2.10%) PHPUnit
10 11 (1.54%) IntelliJ
11 10 (1.40%) Mercurial
12 8 (1.12%) Team Foundation Server
13 5 (0.70%) TeamCity
14 4 (0.56%) Grunt
15 3 (0.42%) Gradle
15 3 (0.42%) VisualVM
General
1 77 (10.80%) Finance
2 45 (6.31%) Retail
3 41 (5.75%) Games
4 34 (4.77%) Telecoms
5 25 (3.51%) Banking
6 23 (3.23%) Back Office
7 19 (2.66%) Advertising
8 18 (2.52%) Marketing
9 6 (0.84%) Law
10 3 (0.42%) Spanish Language
11 2 (0.28%) Investment Banking
11 2 (0.28%) Publishing
Job Titles
1 281 (39.41%) Systems Administrator
2 277 (38.85%) Administrator
3 204 (28.61%) Linux Administrator
4 197 (27.63%) Linux Systems Administrator
5 108 (15.15%) DevOps Engineer
6 93 (13.04%) Developer
7 87 (12.20%) Linux Engineer
8 63 (8.84%) Systems Engineer
9 54 (7.57%) Linux DevOps Engineer
10 34 (4.77%) PHP Developer
11 32 (4.49%) Senior Systems Administrator
12 31 (4.35%) Senior DevOps Engineer
13 25 (3.51%) Linux Systems Engineer
13 25 (3.51%) Java Developer
14 24 (3.37%) Analyst
15 22 (3.09%) Infrastructure Engineer
16 21 (2.95%) Web Developer
17 19 (2.66%) Senior Developer
17 19 (2.66%) Support Engineer
18 18 (2.52%) Network Engineer
Libraries, Frameworks & Software Standards
1 138 (19.35%) Web Services
2 96 (13.46%) LAMP
3 79 (11.08%) HTML
4 61 (8.56%) CSS
5 44 (6.17%) RESTful
6 41 (5.75%) XML
7 34 (4.77%) HTML5
7 34 (4.77%) Symfony
8 30 (4.21%) .NET
9 28 (3.93%) jQuery
10 27 (3.79%) Ajax
11 26 (3.65%) XSLT
11 26 (3.65%) MCollective
12 24 (3.37%) RabbitMQ
13 23 (3.23%) REST
14 20 (2.81%) Memcached
15 19 (2.66%) Django
16 17 (2.38%) Backbone.js
16 17 (2.38%) FIX Protocol
17 15 (2.10%) Spring
Miscellaneous
1 69 (9.68%) Open Source
2 50 (7.01%) Analytical Skills
3 44 (6.17%) Clustering
4 42 (5.89%) Replication
5 32 (4.49%) Computer Science
6 25 (3.51%) Streaming Video
7 21 (2.95%) Wiki
8 20 (2.81%) E-Learning
9 19 (2.66%) Eurex
10 18 (2.52%) CESG
11 16 (2.24%) Mobile App
12 15 (2.10%) Over-the-Top Content
12 15 (2.10%) VLE
13 13 (1.82%) Private Cloud
14 12 (1.68%) IPTV
15 11 (1.54%) Learning Management System
15 11 (1.54%) Management Information System
16 10 (1.40%) Device Driver
16 10 (1.40%) Hedge funds
17 9 (1.26%) Field-Programmable Gate Array
Operating Systems
1 692 (97.05%) Linux
2 355 (49.79%) Red Hat Enterprise Linux
3 237 (33.24%) Windows
4 201 (28.19%) Ubuntu
5 129 (18.09%) Debian
6 91 (12.76%) Windows Server 2008
7 79 (11.08%) UNIX
8 54 (7.57%) Fedora
9 40 (5.61%) Mac OS X
10 29 (4.07%) Windows Server 2003
11 23 (3.23%) SUSE
11 23 (3.23%) Windows Server 2012
12 18 (2.52%) Windows 7
13 14 (1.96%) Apple iOS
14 12 (1.68%) Amazon Linux
14 12 (1.68%) Android
15 11 (1.54%) Solaris
16 5 (0.70%) Mac OS
17 3 (0.42%) Windows 2000
17 3 (0.42%) Windows XP
Processes & Methodologies
1 192 (26.93%) DevOps
2 143 (20.06%) Agile Software Development
3 139 (19.50%) Configuration Management
4 101 (14.17%) E-Commerce
5 86 (12.06%) Continuous Integration
6 84 (11.78%) Load Balancing
7 66 (9.26%) Performance Tuning
8 63 (8.84%) ITIL
9 50 (7.01%) Time Management
10 41 (5.75%) Scrum
11 40 (5.61%) OO
12 27 (3.79%) Build Automation
13 25 (3.51%) Change Management
14 23 (3.23%) Disaster Recovery
14 23 (3.23%) CRM
14 23 (3.23%) TDD
15 22 (3.09%) Data Modelling
15 22 (3.09%) Mentoring
16 21 (2.95%) OOP
16 21 (2.95%) Software Engineering
Programming Languages
1 317 (44.46%) Python
2 295 (41.37%) Bash Shell
3 211 (29.59%) Perl
3 211 (29.59%) PHP
4 196 (27.49%) Java
5 186 (26.09%) Ruby
6 138 (19.35%) SQL
7 84 (11.78%) Shell Script
8 80 (11.22%) JavaScript
9 23 (3.23%) C++
10 21 (2.95%) C#
11 19 (2.66%) PowerShell
12 17 (2.38%) Scala
12 17 (2.38%) PHP5
13 15 (2.10%) T-SQL
14 13 (1.82%) C
15 12 (1.68%) sed
16 10 (1.40%) AWK
16 10 (1.40%) Korn
17 7 (0.98%) XQuery
Qualifications
1 55 (7.71%) Degree
2 29 (4.07%) Cisco Certification
3 22 (3.09%) VMware Certified Professional (VCP)
4 20 (2.81%) CCNP
5 19 (2.66%) RHCE
6 17 (2.38%) Microsoft Certification
7 16 (2.24%) MCSE
8 14 (1.96%) Security Cleared
9 11 (1.54%) SC Cleared
10 10 (1.40%) CCNA
11 9 (1.26%) MCSA
12 7 (0.98%) CCIE
12 7 (0.98%) MCP
13 6 (0.84%) A+ Certification
13 6 (0.84%) LPIC
13 6 (0.84%) CCA
13 6 (0.84%) Citrix Certification
13 6 (0.84%) CCEA
14 3 (0.42%) Linux+ Certification
15 2 (0.28%) ITIL Certification
Quality Assurance & Compliance
1 33 (4.63%) QA
2 14 (1.96%) SLA
3 1 (0.14%) PCI DSS
System Software
1 189 (26.51%) VMware Infrastructure
2 70 (9.82%) Active Directory
3 59 (8.27%) vSphere
4 39 (5.47%) XenServer
5 34 (4.77%) NFS
5 34 (4.77%) Varnish
6 28 (3.93%) Docker
7 27 (3.79%) VMware ESXi
8 24 (3.37%) Samba
8 24 (3.37%) Xen
8 24 (3.37%) Postfix
9 23 (3.23%) VMware ESX
10 22 (3.09%) KVM
11 19 (2.66%) Hyper-V
12 14 (1.96%) iptables
13 13 (1.82%) VirtualBox
13 13 (1.82%) Terminal Services
14 12 (1.68%) vCloud
15 11 (1.54%) Squid
16 10 (1.40%) LXC
Systems Management
1 323 (45.30%) Puppet
2 175 (24.54%) Opscode Chef
3 145 (20.34%) Nagios
4 71 (9.96%) Ansible
5 66 (9.26%) ZABBIX
6 38 (5.33%) Cacti
7 34 (4.77%) Vagrant
8 26 (3.65%) SELinux
9 25 (3.51%) logstash
9 25 (3.51%) WSUS
10 21 (2.95%) Cobbler
10 21 (2.95%) Icinga
11 20 (2.81%) Salt
12 14 (1.96%) Graphite
13 13 (1.82%) Red Hat Spacewalk
14 12 (1.68%) ITRS Geneos
15 11 (1.54%) HAProxy
16 10 (1.40%) collectd
17 9 (1.26%) CFEngine
18 8 (1.12%) Ganglia
Vendors
1 426 (59.75%) Red Hat
2 301 (42.22%) VMware
3 109 (15.29%) Microsoft
4 93 (13.04%) Cisco
5 48 (6.73%) Citrix
6 44 (6.17%) HP
7 38 (5.33%) Oracle
8 35 (4.91%) Zend
9 29 (4.07%) Rackspace
10 27 (3.79%) Juniper
11 17 (2.38%) Bloomberg
12 16 (2.24%) Percona
13 15 (2.10%) AppDynamics
13 15 (2.10%) NYFIX
13 15 (2.10%) Patsystems
13 15 (2.10%) GL TRADE
13 15 (2.10%) Dell
14 14 (1.96%) Reuters
14 14 (1.96%) Perforce
14 14 (1.96%) F5
London
Linux Recruit
Salary: From £80,000 to £120,000 per annum
Posted: 1 hour ago
London
Vertical IT
Salary: £50000 - £75000 per annum + Bonus
Posted: 4 hours ago
London
Burns Sheehan
Salary: £50000 - £65000 per annum + Excelent Benefits
Posted: 5 hours ago
London
Digitech Resourcing Ltd
Salary: From £40,000 to £50,000 per annum
Posted: 6 hours ago
London
Search Crawley IT
Posted: 2 days ago
West London
Burns Sheehan
Salary: £45000 - £55000 per annum + Excellent Working Environment
Posted: 3 days ago
London
Artemis IT Recruitment
Salary: Up to £85,000 per year + Bonus
Posted: 3 days ago
London
Austin Fraser Limited
Salary: £40000.00 - £55000.00 per annum + Great Bens
Posted: 3 days ago
City, London
Digitech Resourcing Ltd
Salary: Up to £70,000 per annum + Benefits
Posted: 3 days ago
London
SQUIZ
Salary: Competitive
Posted: 4 days ago
City, London
Digital Pursuit Ltd
Salary: From £40,000 to £50,000 per annum
Posted: 4 days ago
City, London
Pioneer Search
Salary: £30000 - £35000 per annum + Bonus + Benefits
Posted: 4 days ago
City of London
Modis International - London
Salary: £50000 per annum
Posted: 4 days ago
City, London
Burns Sheehan
Salary: £35000 - £45000 per annum
Posted: 4 days ago
London
Linux Recruit
Salary: From £60,000 to £65,000 per annum
Posted: 5 days ago
London
Novate IT Ltd
Salary: £55000 - £60000 per annum, Benefits: Plus Generous Benefits
Posted: 5 days ago
Brentford, West London
Vnetrix Ltd
Salary: £25-35k depending on experience
Posted: 6 days ago
London
Engage PSG
Salary: £50000 - £60000 per annum + Bonus and great benefits
Posted: 6 days ago
West London
Complete Tech Limited
Salary: From £25,000 to £30,000 per annum
Posted: 6 days ago
Central London / West End
Digitech Resourcing Ltd
Salary: £50,000 per annum + benefits
Posted: 6 days ago