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 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 298 293 326
Rank change year-on-year
-5 +33
Permanent jobs citing CentOS 420 408 368
As % of all permanent IT jobs located in London 0.93% 0.90% 0.75%
As % of the Operating Systems category 3.36% 3.28% 2.71%
Number of salaries quoted 395 371 336
Average salary £50,000 £50,000 £45,000
Average salary % change year-on-year
- +11.11%
90% offered a salary of more than £37,500 £37,500 £31,750
10% offered a salary of more than £70,000 £61,500 £60,000
UK excluding London average salary £40,000 £40,000 £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 London region.

Operating Systems Category
London
Permanent IT job ads with a match in the
Operating Systems category
12504 12457 13579
As % of all permanent IT jobs located in London 27.62% 27.50% 27.84%
Number of salaries quoted 10667 10780 11816
Average salary £50,000 £49,000 £45,000
Average salary % change year-on-year
+2.04% +8.88%
90% offered a salary of more than £27,500 £28,632 £28,000
10% offered a salary of more than £70,000 £67,500 £72,500
UK excluding London average salary £37,000 £37,500 £37,500
% change year-on-year
-1.33% -

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 21 October 2014.

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 21 October 2014. 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 -5 57 £45,000 -15.09% 6
Kingston Upon Thames - 12 £37,500 -
Hammersmith - 6 £37,500 -
Twickenham +4 4 £48,750 -9.30%
Uxbridge -1 2 - -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 21 October 2014, 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.

1 765 (96.96%) Linux
2 506 (64.13%) Red Hat
3 468 (59.32%) Puppet
4 407 (51.58%) Python
5 346 (43.85%) Perl
6 340 (43.09%) Bash Shell
7 331 (41.95%) MySQL
8 304 (38.53%) Opscode Chef
9 299 (37.90%) Red Hat Enterprise Linux
10 277 (35.11%) Apache
11 272 (34.47%) Ubuntu
12 271 (34.35%) DevOps
13 264 (33.46%) PHP
14 247 (31.31%) VMware
15 244 (30.93%) Nagios
16 237 (30.04%) Ruby
17 201 (25.48%) Git (software)
18 199 (25.22%) Agile Software Development
18 199 (25.22%) Java
19 194 (24.59%) Windows
20 180 (22.81%) SQL
21 166 (21.04%) Jenkins
22 164 (20.79%) Debian
23 163 (20.66%) Tomcat
24 161 (20.41%) VMware Infrastructure
25 142 (18.00%) nginx
26 137 (17.36%) LAMP
27 136 (17.24%) Amazon AWS
28 131 (16.60%) TCP/IP
29 127 (16.10%) UNIX

CentOS
Top Related IT Skills in London by Category

For the 6 months to 21 October 2014, 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
1 277 (35.11%) Apache
2 163 (20.66%) Tomcat
3 142 (18.00%) nginx
4 75 (9.51%) JBoss
5 51 (6.46%) OpenStack
6 50 (6.34%) Elasticsearch
7 44 (5.58%) IIS
8 37 (4.69%) Drupal
9 35 (4.44%) WebLogic
10 29 (3.68%) WordPress
11 21 (2.66%) Moodle
12 19 (2.41%) Confluence
13 18 (2.28%) Apache Solr
13 18 (2.28%) MS Exchange
14 15 (1.90%) Node.js
15 11 (1.39%) CMS
16 9 (1.14%) Sitecore CMS
17 8 (1.01%) Jetty
18 6 (0.76%) Joomla!
19 5 (0.63%) Lync
Applications
1 32 (4.06%) MS Excel
2 4 (0.51%) MS Office
3 3 (0.38%) MS Visio
4 1 (0.13%) Doxygen
Business Applications
1 10 (1.27%) Magento
2 2 (0.25%) Oracle BPM
2 2 (0.25%) RMDS
3 1 (0.13%) SAP Oil and Gas
Cloud Services
1 136 (17.24%) Amazon AWS
2 31 (3.93%) SaaS
3 25 (3.17%) Amazon EC2
4 18 (2.28%) Rackspace Cloud
5 17 (2.15%) Amazon S3
6 15 (1.90%) GitHub
6 15 (1.90%) Cloud Computing
7 12 (1.52%) Amazon ELB
8 8 (1.01%) Microsoft Azure
9 2 (0.25%) Heroku
9 2 (0.25%) Amazon SQS
9 2 (0.25%) IaaS
9 2 (0.25%) Amazon EMR
10 1 (0.13%) Route 53
10 1 (0.13%) CloudFront
10 1 (0.13%) AWS Data Pipeline
Communications & Networking
1 131 (16.60%) TCP/IP
2 125 (15.84%) DNS
3 92 (11.66%) HTTP
4 90 (11.41%) Firewall
5 85 (10.77%) SSH
6 70 (8.87%) LDAP
7 67 (8.49%) SAN
8 58 (7.35%) LAN
8 58 (7.35%) VPN
9 53 (6.72%) SSL
10 50 (6.34%) WAN
11 48 (6.08%) DHCP
12 45 (5.70%) Ethernet
13 39 (4.94%) SMTP
14 37 (4.69%) SNMP
15 34 (4.31%) F5 BIG-IP LTM
16 31 (3.93%) NAS
16 31 (3.93%) BIG-IP
17 30 (3.80%) Internet
18 29 (3.68%) Multicast
Database & Business Intelligence
1 331 (41.95%) MySQL
2 106 (13.43%) MongoDB
3 103 (13.05%) NoSQL
4 88 (11.15%) PostgreSQL
5 64 (8.11%) Big Data
6 61 (7.73%) Redis
7 58 (7.35%) Hadoop
8 55 (6.97%) Apache Cassandra
9 41 (5.20%) SQL Server
10 30 (3.80%) DB2
11 28 (3.55%) MariaDB
12 22 (2.79%) CouchDB
12 22 (2.79%) Relational Database
13 17 (2.15%) Riak
14 15 (1.90%) Amazon RDS
15 14 (1.77%) Amazon DynamoDB
16 10 (1.27%) HBase
17 9 (1.14%) RavenDB
18 6 (0.76%) Pentaho
19 5 (0.63%) Couchbase
Development Applications
1 201 (25.48%) Git (software)
2 166 (21.04%) Jenkins
3 61 (7.73%) Subversion
4 45 (5.70%) Hudson
5 38 (4.82%) JIRA
6 23 (2.92%) Maven
7 21 (2.66%) Atlassian Bamboo
8 16 (2.03%) Mercurial
9 10 (1.27%) Selenium
9 10 (1.27%) Juju
10 9 (1.14%) FishEye
10 9 (1.14%) Behat
10 9 (1.14%) Cucumber
11 6 (0.76%) Yeoman
12 5 (0.63%) Gerrit
13 4 (0.51%) PHPUnit
13 4 (0.51%) Bazaar
13 4 (0.51%) Artifactory
14 3 (0.38%) VisualVM
15 2 (0.25%) Trac
General
1 117 (14.83%) Finance
2 47 (5.96%) Games
3 27 (3.42%) Retail
4 22 (2.79%) Advertising
5 18 (2.28%) Banking
6 15 (1.90%) Back Office
6 15 (1.90%) Publishing
7 13 (1.65%) Marketing
8 10 (1.27%) Telecoms
9 6 (0.76%) Online Betting
9 6 (0.76%) Legal
9 6 (0.76%) Financial Institution
10 4 (0.51%) Law
11 1 (0.13%) Electronics
11 1 (0.13%) Manufacturing
11 1 (0.13%) Investment Banking
Job Titles
1 283 (35.87%) Administrator
2 272 (34.47%) Systems Administrator
3 234 (29.66%) Linux Administrator
4 202 (25.60%) Linux Systems Administrator
5 147 (18.63%) Linux Engineer
6 113 (14.32%) DevOps Engineer
7 82 (10.39%) Senior Systems Administrator
8 70 (8.87%) Linux DevOps Engineer
9 62 (7.86%) Senior Linux Administrator
10 60 (7.60%) Senior Linux Systems Administrator
11 58 (7.35%) Developer
12 37 (4.69%) Systems Engineer
13 36 (4.56%) Senior Linux Engineer
14 35 (4.44%) Analyst
14 35 (4.44%) Senior DevOps Engineer
15 32 (4.06%) PHP Developer
16 30 (3.80%) Support Engineer
17 27 (3.42%) Web Engineer
18 22 (2.79%) Operations Engineer
19 19 (2.41%) Network Engineer
Libraries, Frameworks & Software Standards
1 137 (17.36%) LAMP
2 102 (12.93%) Web Services
3 79 (10.01%) HTML
4 71 (9.00%) CSS
5 53 (6.72%) XML
6 42 (5.32%) jQuery
6 42 (5.32%) HTML5
7 31 (3.93%) Django
8 24 (3.04%) RabbitMQ
9 23 (2.92%) Memcached
9 23 (2.92%) Symfony
10 21 (2.66%) JSON
11 19 (2.41%) RESTful
12 17 (2.15%) Regular Expression
13 16 (2.03%) MSMQ
13 16 (2.03%) .NET
14 15 (1.90%) SOAP
14 15 (1.90%) Middleware
15 14 (1.77%) Zend Framework
16 13 (1.65%) J2EE
Miscellaneous
1 103 (13.05%) Open Source
2 50 (6.34%) Clustering
3 43 (5.45%) Computer Science
4 39 (4.94%) Replication
5 29 (3.68%) Hedge funds
6 28 (3.55%) Social Media
7 25 (3.17%) E-Learning
8 24 (3.04%) Analytical Skills
9 19 (2.41%) Digital Media
10 17 (2.15%) VLE
10 17 (2.15%) Learning Management System
11 12 (1.52%) Online Games
12 11 (1.39%) Data Extraction
13 10 (1.27%) Mobile App
14 9 (1.14%) Management Information System
15 7 (0.89%) Algorithms
15 7 (0.89%) Spread Betting
16 6 (0.76%) IPTV
16 6 (0.76%) User Experience
17 5 (0.63%) Video Editing
Operating Systems
1 765 (96.96%) Linux
2 299 (37.90%) Red Hat Enterprise Linux
3 272 (34.47%) Ubuntu
4 194 (24.59%) Windows
5 164 (20.79%) Debian
6 127 (16.10%) UNIX
7 61 (7.73%) Fedora
8 33 (4.18%) Windows Server 2008
9 20 (2.53%) Windows Server 2003
9 20 (2.53%) Windows Server 2012
10 19 (2.41%) Apple iOS
11 17 (2.15%) Mac OS X
12 16 (2.03%) Android
13 15 (1.90%) SUSE
14 7 (0.89%) Solaris
15 6 (0.76%) Windows 7
15 6 (0.76%) Windows 2000
16 5 (0.63%) Mac OS
17 3 (0.38%) VMS
18 2 (0.25%) SELinux
Processes & Methodologies
1 271 (34.35%) DevOps
2 199 (25.22%) Agile Software Development
3 121 (15.34%) Load Balancing
4 109 (13.81%) ITIL
5 103 (13.05%) E-Commerce
6 92 (11.66%) Configuration Management
7 87 (11.03%) Continuous Integration
8 55 (6.97%) Scrum
9 49 (6.21%) Mentoring
10 45 (5.70%) Service Delivery
11 40 (5.07%) Web Development
12 38 (4.82%) Analytics
13 35 (4.44%) Project Management
13 35 (4.44%) Performance Tuning
14 31 (3.93%) Kanban
15 28 (3.55%) Statistical Analysis
16 27 (3.42%) Build Automation
17 25 (3.17%) OO
18 24 (3.04%) Service Management
19 22 (2.79%) OOP
Programming Languages
1 407 (51.58%) Python
2 346 (43.85%) Perl
3 340 (43.09%) Bash Shell
4 264 (33.46%) PHP
5 237 (30.04%) Ruby
6 199 (25.22%) Java
7 180 (22.81%) SQL
8 59 (7.48%) JavaScript
9 56 (7.10%) Shell Script
10 48 (6.08%) PowerShell
11 46 (5.83%) sed
12 37 (4.69%) AWK
13 26 (3.30%) PHP5
14 20 (2.53%) Scala
15 12 (1.52%) Korn
16 11 (1.39%) C++
16 11 (1.39%) C
17 10 (1.27%) Bourne shell
18 7 (0.89%) VBScript
19 5 (0.63%) C#
Qualifications
1 65 (8.24%) Degree
2 34 (4.31%) Cisco Certification
3 20 (2.53%) CCNA
3 20 (2.53%) RHCE
4 18 (2.28%) Security Cleared
4 18 (2.28%) VMware Certified Professional (VCP)
5 14 (1.77%) CCNP
5 14 (1.77%) Microsoft Certification
6 13 (1.65%) MCSE
7 11 (1.39%) MCP
8 8 (1.01%) CEH
8 8 (1.01%) OSCP
8 8 (1.01%) OSCE
9 7 (0.89%) MCSA
9 7 (0.89%) MCITP
10 5 (0.63%) Postgraduate
11 2 (0.25%) CISSP
11 2 (0.25%) Citrix Certification
11 2 (0.25%) A+ Certification
11 2 (0.25%) ITIL Certification
Quality Assurance & Compliance
1 29 (3.68%) QA
2 28 (3.55%) SLA
3 27 (3.42%) ISO/IEC 27001
4 15 (1.90%) ISO 9001
4 15 (1.90%) ISO 14001
5 12 (1.52%) PCI DSS
6 1 (0.13%) Sarbanes-Oxley
System Software
1 161 (20.41%) VMware Infrastructure
2 69 (8.75%) KVM
3 66 (8.37%) Xen
4 45 (5.70%) Varnish
5 44 (5.58%) vSphere
6 36 (4.56%) Active Directory
7 30 (3.80%) Samba
8 27 (3.42%) vCloud
9 26 (3.30%) Docker
10 21 (2.66%) NFS
11 19 (2.41%) LXC
12 18 (2.28%) VMware ESXi
13 17 (2.15%) Shibboleth
14 15 (1.90%) Hyper-V
15 14 (1.77%) XenServer
16 11 (1.39%) Ceph
16 11 (1.39%) Postfix
17 7 (0.89%) VMware ESX
18 5 (0.63%) Oracle RAC
19 4 (0.51%) Squid
Systems Management
1 468 (59.32%) Puppet
2 304 (38.53%) Opscode Chef
3 244 (30.93%) Nagios
4 110 (13.94%) ZABBIX
5 86 (10.90%) Salt
6 84 (10.65%) Cacti
7 66 (8.37%) Ansible
8 55 (6.97%) CFEngine
9 54 (6.84%) Vagrant
10 32 (4.06%) ITRS Geneos
11 30 (3.80%) Zenoss
12 28 (3.55%) YUM
13 21 (2.66%) logstash
14 20 (2.53%) Opsview
15 19 (2.41%) SCOM
16 13 (1.65%) Red Hat Spacewalk
16 13 (1.65%) Ganglia
17 11 (1.39%) HAProxy
18 9 (1.14%) Kibana
18 9 (1.14%) Munin
Vendors
1 506 (64.13%) Red Hat
2 247 (31.31%) VMware
3 87 (11.03%) Oracle
4 75 (9.51%) Cisco
5 62 (7.86%) Microsoft
6 56 (7.10%) Rackspace
7 52 (6.59%) HP
7 52 (6.59%) F5
8 51 (6.46%) Citrix
9 38 (4.82%) Zend
10 33 (4.18%) Perforce
11 27 (3.42%) Reuters
12 25 (3.17%) Bloomberg
13 24 (3.04%) Splunk
14 22 (2.79%) Juniper
15 20 (2.53%) NetApp
16 18 (2.28%) Vertica
17 17 (2.15%) EMC
17 17 (2.15%) Riverbed
18 16 (2.03%) SaltStack
London
Verticality Ltd
Salary: £35000 to £38000 per annum - to 38k Plus exception benefits
Posted: 2 hours ago
London
Open Select Recruitment
Salary: £50000 - £80000 per annum + benefits
Posted: 3 hours ago
City, London
Bridge Noble
Salary: £35000 - £45000 per annum + Excellent Benefits
Posted: 4 hours ago
Central London / West End
Araya Partners Ltd
Salary: From £70,000 to £85,000 per annum Salary is approx 70-85k base + bonus
Posted: 7 hours ago
Hayes, Middlesex
Rackspace
Salary: Competitive
Posted: 9 hours ago
London
Ampersand Consulting
Salary: £30000 - £35000 per annum + Benefits
Posted: Yesterday
London
Artemis Recruitment Ltd
Salary: £Excellent + Bonus
Posted: Yesterday
London
Austin Fraser
Salary: £40000.00 - £50000.00 per annum + Bens
Posted: 4 days ago
London
Austin Fraser
Salary: £35000.00 - £50000.00 per annum + Shares
Posted: 4 days ago
London
Austin Fraser
Salary: £40000.00 - £50000.00 per annum + Bens
Posted: 4 days ago
Central London / West End
Huddlebuy Ltd
Salary: From £40,000 to £60,000 per annum £excellent + share options + benefit
Posted: 4 days ago
South West London
XCM Rock
Salary: From £30,000 to £40,000 per annum
Posted: 4 days ago
London
Opus Resourcing Ltd
Salary: £45000 - £55000 per annum + Benefits
Posted: 5 days ago
London
Queen Mary University of London
Salary: £35,319 - £41,553 per annum
Posted: 5 days ago
North West London
ASG International
Salary: From £45,000 to £50,000 per annum
Posted: 6 days ago
City, London
McGregor Boyall
Salary: £50000 - £70000 per annum + Package
Posted: 6 days ago
London
Bridge Noble
Salary: £50000 - £60000 per annum + Stock + Benefits
Posted: 6 days ago
South West London
Oscar Associates (UK) Ltd
Salary: £40000 - £55000 per annum + Benefits
Posted: 6 days ago
South West London
Oscar Associates (UK) Ltd
Salary: £40000 - £55000 per annum + Benefits
Posted: 6 days ago
South West London
GeoPlace LLP
Salary: From £27,000 to £30,000 per annum based on experience
Posted: 7 days ago