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

Location
3 months to
27 Aug 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 289 302 336
Rank change year-on-year
+13 +34
Permanent jobs citing CentOS 418 370 357
As % of all permanent IT jobs located in London 0.90% 0.83% 0.70%
As % of the Operating Systems category 3.30% 2.98% 2.55%
Number of salaries quoted 376 346 307
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 £34,600
10% offered a salary of more than £65,000 £62,500 £60,000
UK excluding London average salary £41,500 £38,500 £35,000
% change year-on-year
+7.79% +10.00%
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
12683 12408 14011
As % of all permanent IT jobs located in London 27.37% 27.70% 27.34%
Number of salaries quoted 10898 10602 12247
Average salary £50,000 £50,000 £46,000
Average salary % change year-on-year
- +8.69%
90% offered a salary of more than £28,000 £29,000 £29,000
10% offered a salary of more than £70,000 £70,000 £70,000
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 27 August 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 27 August 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 +13 69 £45,000 -18.18% 11
Kingston Upon Thames - 7 £37,500 - 1
Twickenham +10 2 £47,500 -5.00% 1
Hammersmith 0 1 - - 1
Uxbridge - 1 - -
Bromley - 1 £45,000 -
Isleworth - 1 - -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 27 August 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.

1 707 (96.45%) Linux
2 461 (62.89%) Red Hat
3 432 (58.94%) Puppet
4 348 (47.48%) Python
5 332 (45.29%) MySQL
6 329 (44.88%) Perl
7 301 (41.06%) Apache
8 299 (40.79%) Bash Shell
9 289 (39.43%) Opscode Chef
10 280 (38.20%) DevOps
10 280 (38.20%) Red Hat Enterprise Linux
11 253 (34.52%) Ubuntu
12 244 (33.29%) PHP
13 234 (31.92%) VMware
14 225 (30.70%) Ruby
15 220 (30.01%) Nagios
16 195 (26.60%) Git (software)
17 193 (26.33%) Java
18 174 (23.74%) SQL
19 172 (23.47%) Windows
20 167 (22.78%) VMware Infrastructure
21 154 (21.01%) Tomcat
21 154 (21.01%) Jenkins
22 151 (20.60%) Debian
23 144 (19.65%) nginx
24 128 (17.46%) DNS
25 125 (17.05%) Amazon AWS
26 124 (16.92%) TCP/IP
27 119 (16.23%) UNIX
28 117 (15.96%) Load Balancing

CentOS
Top Related IT Skills in London by Category

For the 6 months to 27 August 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
1 301 (41.06%) Apache
2 154 (21.01%) Tomcat
3 144 (19.65%) nginx
4 52 (7.09%) Elasticsearch
5 48 (6.55%) OpenStack
6 39 (5.32%) Drupal
6 39 (5.32%) IIS
7 32 (4.37%) WebLogic
8 23 (3.14%) WordPress
9 20 (2.73%) Moodle
10 19 (2.59%) Confluence
11 15 (2.05%) Apache Solr
11 15 (2.05%) MS Exchange
12 11 (1.50%) CMS
13 10 (1.36%) GlassFish
13 10 (1.36%) Node.js
14 9 (1.23%) Jetty
14 9 (1.23%) Sitecore CMS
15 7 (0.95%) Exchange Server 2010
16 5 (0.68%) Exchange Server 2007
Applications
1 27 (3.68%) MS Excel
2 4 (0.55%) MS Visio
3 1 (0.14%) Doxygen
3 1 (0.14%) MS Office
Business Applications
1 4 (0.55%) Magento
2 3 (0.41%) Summit
3 2 (0.27%) RMDS
4 1 (0.14%) SAP Oil and Gas
4 1 (0.14%) Dynamics AX
4 1 (0.14%) Google Analytics
4 1 (0.14%) Oracle BPM
Cloud Services
1 125 (17.05%) Amazon AWS
2 34 (4.64%) SaaS
3 23 (3.14%) Amazon EC2
4 17 (2.32%) Amazon S3
5 13 (1.77%) Amazon ELB
6 12 (1.64%) Cloud Computing
6 12 (1.64%) GitHub
7 11 (1.50%) Rackspace Cloud
8 7 (0.95%) Microsoft Azure
9 2 (0.27%) Heroku
9 2 (0.27%) Amazon SQS
9 2 (0.27%) CloudFront
9 2 (0.27%) IaaS
9 2 (0.27%) Amazon EMR
9 2 (0.27%) Office 365
10 1 (0.14%) AWS Data Pipeline
10 1 (0.14%) Google Apps
Communications & Networking
1 128 (17.46%) DNS
2 124 (16.92%) TCP/IP
3 95 (12.96%) Firewall
4 91 (12.41%) HTTP
5 75 (10.23%) SSH
6 66 (9.00%) SAN
7 64 (8.73%) VPN
8 62 (8.46%) LDAP
9 55 (7.50%) SSL
10 46 (6.28%) Internet
11 45 (6.14%) LAN
12 44 (6.00%) SMTP
12 44 (6.00%) DHCP
12 44 (6.00%) Ethernet
13 40 (5.46%) WAN
14 38 (5.18%) SNMP
15 37 (5.05%) NAS
16 31 (4.23%) F5 BIG-IP LTM
17 29 (3.96%) NetScaler
17 29 (3.96%) BIG-IP
Database & Business Intelligence
1 332 (45.29%) MySQL
2 108 (14.73%) MongoDB
3 98 (13.37%) NoSQL
4 86 (11.73%) PostgreSQL
5 65 (8.87%) Redis
6 59 (8.05%) Hadoop
7 57 (7.78%) Big Data
8 51 (6.96%) Apache Cassandra
9 47 (6.41%) SQL Server
10 30 (4.09%) DB2
11 22 (3.00%) Amazon DynamoDB
12 19 (2.59%) MariaDB
12 19 (2.59%) CouchDB
13 16 (2.18%) Relational Database
14 15 (2.05%) HBase
15 14 (1.91%) Riak
15 14 (1.91%) Amazon RDS
16 9 (1.23%) RavenDB
17 6 (0.82%) Apache Hive
17 6 (0.82%) SQL Server 2008
Development Applications
1 195 (26.60%) Git (software)
2 154 (21.01%) Jenkins
3 70 (9.55%) Subversion
4 34 (4.64%) JIRA
4 34 (4.64%) Hudson
5 26 (3.55%) Maven
6 16 (2.18%) Atlassian Bamboo
7 15 (2.05%) Juju
8 12 (1.64%) Mercurial
9 9 (1.23%) Selenium
10 8 (1.09%) FishEye
11 5 (0.68%) Gerrit
12 3 (0.41%) PHPUnit
12 3 (0.41%) Artifactory
13 2 (0.27%) Karma Test Runner
13 2 (0.27%) Cucumber
14 1 (0.14%) SoapUI
14 1 (0.14%) Ant
14 1 (0.14%) Behat
14 1 (0.14%) Trac
General
1 97 (13.23%) Finance
2 75 (10.23%) Games
3 23 (3.14%) Telecoms
4 22 (3.00%) Retail
5 19 (2.59%) Banking
5 19 (2.59%) Advertising
6 16 (2.18%) Online Betting
7 15 (2.05%) Marketing
8 13 (1.77%) Publishing
9 9 (1.23%) Back Office
10 4 (0.55%) Financial Institution
10 4 (0.55%) Law
10 4 (0.55%) Legal
11 2 (0.27%) Pharmaceutical
11 2 (0.27%) Electronics
12 1 (0.14%) Manufacturing
12 1 (0.14%) Investment Banking
Job Titles
1 275 (37.52%) Administrator
2 257 (35.06%) Systems Administrator
3 232 (31.65%) Linux Administrator
4 194 (26.47%) Linux Systems Administrator
5 133 (18.14%) Linux Engineer
6 114 (15.55%) DevOps Engineer
7 87 (11.87%) Senior Systems Administrator
8 72 (9.82%) Linux DevOps Engineer
9 69 (9.41%) Senior Linux Administrator
10 67 (9.14%) Senior Linux Systems Administrator
11 58 (7.91%) Developer
12 45 (6.14%) Systems Engineer
13 40 (5.46%) Senior DevOps Engineer
14 39 (5.32%) Senior Linux Engineer
15 32 (4.37%) Analyst
16 27 (3.68%) Support Engineer
17 23 (3.14%) PHP Developer
18 22 (3.00%) Network Engineer
18 22 (3.00%) Web Engineer
19 18 (2.46%) Operations Engineer
Libraries, Frameworks & Software Standards
1 111 (15.14%) LAMP
2 92 (12.55%) Web Services
3 62 (8.46%) HTML
4 59 (8.05%) CSS
5 51 (6.96%) XML
6 37 (5.05%) jQuery
7 29 (3.96%) HTML5
8 28 (3.82%) Django
9 26 (3.55%) RESTful
10 25 (3.41%) RabbitMQ
11 21 (2.86%) Memcached
11 21 (2.86%) JSON
12 18 (2.46%) J2EE
13 17 (2.32%) .NET
14 16 (2.18%) Middleware
14 16 (2.18%) Regular Expression
15 15 (2.05%) MSMQ
16 12 (1.64%) SOAP
16 12 (1.64%) ActiveMQ
16 12 (1.64%) Ajax
Miscellaneous
1 105 (14.32%) Open Source
2 62 (8.46%) Clustering
3 48 (6.55%) Replication
4 35 (4.77%) Computer Science
5 34 (4.64%) Social Media
6 27 (3.68%) Online Games
7 20 (2.73%) E-Learning
8 17 (2.32%) Hedge funds
9 15 (2.05%) VLE
9 15 (2.05%) Learning Management System
10 11 (1.50%) Mobile App
11 9 (1.23%) Data Extraction
12 7 (0.95%) Digital Media
13 6 (0.82%) IPTV
13 6 (0.82%) Mobile Games
14 5 (0.68%) Video Editing
15 4 (0.55%) PKI
15 4 (0.55%) Management Information System
15 4 (0.55%) Client/Server
15 4 (0.55%) Enterprise Software
Operating Systems
1 707 (96.45%) Linux
2 280 (38.20%) Red Hat Enterprise Linux
3 253 (34.52%) Ubuntu
4 172 (23.47%) Windows
5 151 (20.60%) Debian
6 119 (16.23%) UNIX
7 64 (8.73%) Fedora
8 49 (6.68%) Windows Server 2008
9 27 (3.68%) Android
9 27 (3.68%) Apple iOS
10 22 (3.00%) Windows Server 2012
11 21 (2.86%) Windows Server 2003
11 21 (2.86%) SUSE
12 15 (2.05%) Mac OS X
13 11 (1.50%) Windows 7
14 7 (0.95%) Solaris
15 4 (0.55%) VMS
15 4 (0.55%) SELinux
16 2 (0.27%) FreeBSD
17 1 (0.14%) AIX
Processes & Methodologies
1 280 (38.20%) DevOps
2 117 (15.96%) Load Balancing
3 114 (15.55%) Agile Software Development
4 107 (14.60%) E-Commerce
5 85 (11.60%) ITIL
6 84 (11.46%) Continuous Integration
7 77 (10.50%) Configuration Management
8 54 (7.37%) Scrum
9 44 (6.00%) Web Development
10 40 (5.46%) Service Delivery
11 30 (4.09%) Kanban
11 30 (4.09%) Analytics
12 28 (3.82%) Statistical Analysis
13 27 (3.68%) Project Management
14 25 (3.41%) Build Automation
15 23 (3.14%) Performance Tuning
16 21 (2.86%) Service Management
17 20 (2.73%) TDD
18 18 (2.46%) OOP
19 17 (2.32%) Data Modelling
Programming Languages
1 348 (47.48%) Python
2 329 (44.88%) Perl
3 299 (40.79%) Bash Shell
4 244 (33.29%) PHP
5 225 (30.70%) Ruby
6 193 (26.33%) Java
7 174 (23.74%) SQL
8 52 (7.09%) JavaScript
9 51 (6.96%) Shell Script
10 46 (6.28%) sed
11 44 (6.00%) AWK
12 30 (4.09%) PowerShell
13 23 (3.14%) Scala
14 21 (2.86%) PHP5
15 15 (2.05%) C
16 11 (1.50%) C++
17 10 (1.36%) Korn
17 10 (1.36%) Bourne shell
18 5 (0.68%) C#
19 3 (0.41%) T-SQL
Qualifications
1 57 (7.78%) Degree
2 25 (3.41%) Cisco Certification
3 17 (2.32%) Security Cleared
4 15 (2.05%) CCNA
5 12 (1.64%) Microsoft Certification
5 12 (1.64%) VMware Certified Professional (VCP)
6 11 (1.50%) CCNP
7 10 (1.36%) MCSE
8 8 (1.09%) CEH
8 8 (1.09%) OSCP
8 8 (1.09%) OSCE
9 6 (0.82%) MCP
9 6 (0.82%) RHCE
10 5 (0.68%) Postgraduate
11 3 (0.41%) Citrix Certification
12 2 (0.27%) CCEA
12 2 (0.27%) CISSP
12 2 (0.27%) MCSA
12 2 (0.27%) A+ Certification
12 2 (0.27%) ITIL Certification
Quality Assurance & Compliance
1 29 (3.96%) QA
2 26 (3.55%) SLA
3 25 (3.41%) ISO/IEC 27001
4 18 (2.46%) PCI DSS
5 13 (1.77%) ISO 9001
5 13 (1.77%) ISO 14001
6 2 (0.27%) Sarbanes-Oxley
System Software
1 167 (22.78%) VMware Infrastructure
2 82 (11.19%) KVM
3 62 (8.46%) Xen
4 47 (6.41%) Varnish
5 38 (5.18%) vSphere
6 31 (4.23%) Active Directory
7 29 (3.96%) NFS
8 21 (2.86%) Hyper-V
9 20 (2.73%) Samba
10 19 (2.59%) vCloud
11 15 (2.05%) Shibboleth
12 12 (1.64%) Postfix
12 12 (1.64%) VMware ESX
12 12 (1.64%) VMware ESXi
13 10 (1.36%) Squid
13 10 (1.36%) XenServer
14 8 (1.09%) VirtualBox
15 7 (0.95%) Docker
16 5 (0.68%) XenApp
16 5 (0.68%) Oracle RAC
Systems Management
1 432 (58.94%) Puppet
2 289 (39.43%) Opscode Chef
3 220 (30.01%) Nagios
4 104 (14.19%) ZABBIX
5 81 (11.05%) Cacti
6 75 (10.23%) Salt
7 57 (7.78%) Ansible
8 56 (7.64%) CFEngine
9 40 (5.46%) Vagrant
10 28 (3.82%) YUM
11 26 (3.55%) Zenoss
11 26 (3.55%) logstash
12 25 (3.41%) Opsview
13 20 (2.73%) SCOM
14 17 (2.32%) ITRS Geneos
15 15 (2.05%) Red Hat Spacewalk
16 14 (1.91%) HAProxy
17 12 (1.64%) Cobbler
17 12 (1.64%) Munin
18 10 (1.36%) Ganglia
Vendors
1 461 (62.89%) Red Hat
2 234 (31.92%) VMware
3 77 (10.50%) Oracle
4 69 (9.41%) Cisco
5 66 (9.00%) JBoss
6 56 (7.64%) Rackspace
7 51 (6.96%) HP
8 48 (6.55%) Citrix
8 48 (6.55%) F5
9 43 (5.87%) Microsoft
10 25 (3.41%) Juniper
10 25 (3.41%) Perforce
11 24 (3.27%) NetApp
11 24 (3.27%) Splunk
12 23 (3.14%) Zend
13 21 (2.86%) SaltStack
14 19 (2.59%) Vertica
15 18 (2.46%) Bloomberg
16 16 (2.18%) Reuters
17 14 (1.91%) Dell
London
Premier Group Recruitment
Salary: £35000 - £37000 per annum
Posted: 14 hours ago
City, London
Oscar Associates (UK) Ltd
Salary: £35000 - £40000 per annum + Benefits
Posted: 18 hours ago
Hayes, Middlesex
Rackspace
Salary: Competitive
Posted: 18 hours ago
London
ComputAppoint
Salary: £45000 - £50000 per annum + benefits
Posted: 22 hours ago
South West London
Oscar Associates (UK) Ltd
Salary: £20000 - £25000 per annum + Benefits
Posted: 23 hours ago
Twickenham, Middlesex
Streamline Connections
Salary: £45000 - £50000 per annum + Benefits
Posted: Yesterday
Central London / West End
Araya Partners Ltd
Salary: From £70,000 to £85,000 per annum Salary is approx 70-85k base + bonus
Posted: Yesterday
Central London / West End
Araya Partners Ltd
Salary: From £50,000 to £70,000 per annum Salary negotiable depending on exper
Posted: Yesterday
West London
ARC IT Recruitment Ltd
Salary: £60000 Per Annum
Posted: 2 days ago
City, London
Clear Edge Consulting
Salary: From £60,000 to £90,000 per annum exceptional bonus scheme, benefits
Posted: 4 days ago
London
Global Technology Solutions Ltd
Salary: £45000 - £55000 per annum + bonus & benefits
Posted: 4 days ago
Central London / West End
Reed Business Information Ltd
Salary: From £55,000 to £64,000 per annum + 29 days + Share Ops + Pension + mo
Posted: 4 days ago
South West London
Oscar Associates (UK) Ltd
Salary: £20000 - £30000 per annum + Benefits
Posted: 4 days ago
London
Talent Crew
Salary: £35000 - £38000 per annum + Excellent benefits
Posted: 4 days ago
London
Austin Fraser
Salary: £30000.00 - £40000.00 per annum + Bens
Posted: 5 days ago
Kingston Upon Thames, Surrey
Austin Fraser
Salary: £35000.00 - £40000.00 per annum + Bens
Posted: 5 days ago
London
Austin Fraser
Salary: £60000.00 - £75000.00 per annum + Shares
Posted: 5 days ago
London
Austin Fraser
Salary: £60000.00 - £75000.00 per annum + Shares
Posted: 5 days ago
London
Talent International
Salary: £35000 - £60000 per annum + Benefits
Posted: 5 days ago
London
Open Select Recruitment
Salary: £40000 - £65000 per annum + benefits
Posted: 5 days ago