The first table below looks at the demand for CentOS skills in IT jobs advertised across the UK. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 11 July 2014 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all of the Operating Systems category.

Location
3 months to
11 Jul 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 394 391 411
Rank change year-on-year
-3 +20
Permanent jobs citing CentOS 713 625 620
As % of all permanent IT jobs located in the UK 0.61% 0.57% 0.53%
As % of the Operating Systems category 2.29% 2.09% 1.94%
Number of salaries quoted 640 561 518
Average salary £42,750 £45,000 £40,000
Average salary % change year-on-year
-5.00% +12.50%
90% offered a salary of more than £29,000 £30,000 £30,000
10% offered a salary of more than £60,000 £60,000 £55,000
UK excluding London average salary £39,000 £37,500 £35,000
% change year-on-year
+4.00% +7.14%
Operating Systems Category
UK
Permanent IT job ads with a match in the
Operating Systems category
31121 29963 31970
As % of all permanent IT jobs located in the UK 26.68% 27.47% 27.23%
Number of salaries quoted 26080 25429 27425
Average salary £40,000 £40,000 £40,000
90% offered a salary of more than £25,000 £25,000 £25,000
10% offered a salary of more than £65,000 £62,500 £62,500
UK excluding London average salary £36,500 £37,500 £37,500
% change year-on-year
-2.66% -

CentOS
Jobs Demand Trend

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

CentOS Jobs Demand Trend in the UK

CentOS
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS within the UK.

CentOS Salary Trend in the UK

CentOS
Salary Histogram

This chart provides a salary histogram for IT jobs citing CentOS over the 3 months to 11 July 2014 within the UK.

CentOS Salary Histogram in the UK

CentOS
Top 30 Job Locations

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing CentOS within the UK over the 3 months to 11 July 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
England -8 675 £44,500 -1.11% 70
London -37 347 £50,000 - 34
South East -9 113 £42,500 - 13
East of England +18 61 £43,750 +15.13% 2
City of London -9 48 £45,000 -7.69% 10
South West +19 47 £37,500 +11.94% 3
Yorkshire -40 41 £29,000 -3.33% 5
Berkshire +11 39 £42,750 +85.86% 4
Cambridgeshire +13 36 £42,000 -16.00%
Cambridge +10 33 £42,000 -16.00%
Bristol +25 32 £37,500 +7.14% 1
Hampshire +2 32 £40,000 +14.28% 4
North West +20 27 £40,000 +14.28% 9
Manchester +19 20 £40,000 +68.42% 3
Hertfordshire +1 20 £53,000 +32.50% 2
Reading -7 19 £41,500 +80.43% 3
East Midlands -11 19 £29,000 -24.67% 2
West Midlands +11 18 £32,500 +3.17% 2
Surrey -26 18 £50,000 +14.94% 3
South Wales +9 17 £35,000 +7.69% 5
Wales +2 17 £35,000 +7.69% 5
Cardiff - 16 £35,000 - 5
West Yorkshire -51 14 £25,845 -39.18% 4
Basingstoke +8 13 £40,000 -15.78% 1
Scotland -5 13 £31,250 -23.77% 4
Leeds -54 13 £25,845 -39.89% 4
Goole - 12 £32,000 -
East Yorkshire - 12 £32,000 -
Staffordshire - 9 £30,000 - 1
Guildford -6 8 £42,500 -10.52%

CentOS
Top 30 Related IT Skills

For the 6 months to 11 July 2014, IT jobs within the UK 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 1260 (92.51%) Linux
2 880 (64.61%) Red Hat
3 620 (45.52%) MySQL
4 542 (39.79%) Apache
5 510 (37.44%) Puppet
6 493 (36.20%) Red Hat Enterprise Linux
7 484 (35.54%) Perl
8 440 (32.31%) Python
9 436 (32.01%) Windows
10 410 (30.10%) VMware
10 410 (30.10%) Bash Shell
11 403 (29.59%) Ubuntu
12 390 (28.63%) PHP
13 332 (24.38%) DevOps
14 317 (23.27%) Opscode Chef
15 314 (23.05%) Java
16 277 (20.34%) DNS
17 273 (20.04%) Nagios
18 269 (19.75%) TCP/IP
19 266 (19.53%) VMware Infrastructure
20 261 (19.16%) Tomcat
21 259 (19.02%) Ruby
22 250 (18.36%) SQL
23 244 (17.91%) UNIX
24 230 (16.89%) Git (software)
25 224 (16.45%) Debian
26 208 (15.27%) Web Services
27 198 (14.54%) Amazon AWS
28 189 (13.88%) Firewall
29 166 (12.19%) Windows Server 2008

CentOS
Top Related IT Skills by Category

For the 6 months to 11 July 2014, IT jobs within the UK 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
1 542 (39.79%) Apache
2 261 (19.16%) Tomcat
3 152 (11.16%) nginx
4 110 (8.08%) IIS
5 65 (4.77%) Drupal
6 57 (4.19%) OpenStack
7 55 (4.04%) Elasticsearch
8 54 (3.96%) CMS
9 50 (3.67%) WordPress
10 48 (3.52%) MS Exchange
11 35 (2.57%) WebLogic
12 31 (2.28%) Exchange Server 2010
13 25 (1.84%) Alfresco
14 22 (1.62%) Confluence
15 21 (1.54%) Apache Solr
16 20 (1.47%) GlassFish
16 20 (1.47%) Oracle HTTP Server
17 18 (1.32%) Node.js
18 17 (1.25%) Exchange Server 2013
19 15 (1.10%) SharePoint
Applications
1 73 (5.36%) MS Excel
2 10 (0.73%) Photoshop
3 9 (0.66%) Adobe Illustrator
4 4 (0.29%) Mingle
5 2 (0.15%) MS Visio
6 1 (0.073%) Fireworks
6 1 (0.073%) Doxygen
Business Applications
1 21 (1.54%) Magento
2 18 (1.32%) Shopify
3 9 (0.66%) SAP Oil and Gas
4 6 (0.44%) Dynamics CRM
4 6 (0.44%) Oracle EBS
5 3 (0.22%) Summit
6 2 (0.15%) RMDS
6 2 (0.15%) Oracle CRM
6 2 (0.15%) Dynamics AX
6 2 (0.15%) Google Analytics
7 1 (0.073%) Oracle Applications
Cloud Services
1 198 (14.54%) Amazon AWS
2 90 (6.61%) SaaS
3 61 (4.48%) Amazon EC2
4 34 (2.50%) Amazon S3
4 34 (2.50%) Amazon ELB
5 22 (1.62%) Route 53
6 16 (1.17%) Cloud Computing
7 13 (0.95%) Microsoft Azure
8 8 (0.59%) GitHub
9 7 (0.51%) Office 365
10 6 (0.44%) Heroku
11 5 (0.37%) Rackspace Cloud
12 4 (0.29%) Amazon SQS
12 4 (0.29%) CloudFront
13 3 (0.22%) Engine Yard
14 1 (0.073%) Google Apps
14 1 (0.073%) IaaS
14 1 (0.073%) ElastiCache
Communications & Networking
1 277 (20.34%) DNS
2 269 (19.75%) TCP/IP
3 189 (13.88%) Firewall
4 161 (11.82%) SAN
5 159 (11.67%) HTTP
6 121 (8.88%) VPN
7 99 (7.27%) Internet
8 98 (7.20%) DHCP
9 96 (7.05%) SSL
10 87 (6.39%) LDAP
11 81 (5.95%) SSH
12 70 (5.14%) NAS
13 67 (4.92%) SMTP
14 61 (4.48%) LAN
15 55 (4.04%) Ethernet
16 49 (3.60%) IPsec
17 48 (3.52%) SNMP
18 42 (3.08%) WAN
19 40 (2.94%) tcpdump
20 36 (2.64%) BGP
Database & Business Intelligence
1 620 (45.52%) MySQL
2 144 (10.57%) SQL Server
3 136 (9.99%) PostgreSQL
4 134 (9.84%) MongoDB
5 112 (8.22%) NoSQL
6 75 (5.51%) Redis
7 68 (4.99%) Relational Database
8 66 (4.85%) Hadoop
9 58 (4.26%) Big Data
10 56 (4.11%) Apache Cassandra
11 39 (2.86%) SQL Server 2008
12 33 (2.42%) RDBMS
12 33 (2.42%) Amazon RDS
13 27 (1.98%) Amazon DynamoDB
14 25 (1.84%) SQL Server 2005
15 23 (1.69%) DB2
15 23 (1.69%) Hazelcast
16 22 (1.62%) MariaDB
17 21 (1.54%) Oracle Database
18 19 (1.40%) CouchDB
Development Applications
1 230 (16.89%) Git (software)
2 154 (11.31%) Jenkins
3 124 (9.10%) Subversion
4 57 (4.19%) Maven
5 37 (2.72%) Hudson
6 33 (2.42%) JIRA
7 19 (1.40%) Eclipse
8 17 (1.25%) JUnit
9 14 (1.03%) Atlassian Bamboo
9 14 (1.03%) Metasploit
10 13 (0.95%) Ant
11 10 (0.73%) Selenium
11 10 (0.73%) Dreamweaver
11 10 (0.73%) Juju
12 9 (0.66%) Mercurial
12 9 (0.66%) Octopus Deploy
13 7 (0.51%) Xdebug
13 7 (0.51%) PHPUnit
14 5 (0.37%) FishEye
15 4 (0.29%) MSTest
General
1 148 (10.87%) Finance
2 107 (7.86%) Games
3 104 (7.64%) Telecoms
4 44 (3.23%) Marketing
5 43 (3.16%) Online Betting
6 27 (1.98%) Retail
7 23 (1.69%) Banking
8 19 (1.40%) Back Office
9 17 (1.25%) Manufacturing
10 11 (0.81%) Advertising
10 11 (0.81%) Welsh Language
11 10 (0.73%) Electronics
12 9 (0.66%) Publishing
13 8 (0.59%) Pharmaceutical
14 4 (0.29%) Front Office
15 3 (0.22%) Automotive
16 2 (0.15%) Law
16 2 (0.15%) Legal
16 2 (0.15%) Multimedia
16 2 (0.15%) Investment Banking
Job Titles
1 474 (34.80%) Administrator
2 411 (30.18%) Systems Administrator
3 386 (28.34%) Linux Administrator
4 301 (22.10%) Linux Systems Administrator
5 218 (16.01%) Linux Engineer
6 178 (13.07%) Developer
7 136 (9.99%) DevOps Engineer
8 112 (8.22%) Support Engineer
9 110 (8.08%) Senior Systems Administrator
10 109 (8.00%) Systems Engineer
11 94 (6.90%) Senior Linux Administrator
12 88 (6.46%) Senior Linux Systems Administrator
13 71 (5.21%) Infrastructure Engineer
14 63 (4.63%) PHP Developer
15 52 (3.82%) Senior Linux Engineer
16 42 (3.08%) Senior DevOps Engineer
16 42 (3.08%) Consultant
17 35 (2.57%) UNIX Administrator
18 33 (2.42%) Junior
19 32 (2.35%) Analyst
Libraries, Frameworks & Software Standards
1 208 (15.27%) Web Services
2 160 (11.75%) LAMP
3 116 (8.52%) HTML
4 115 (8.44%) CSS
5 109 (8.00%) jQuery
6 64 (4.70%) RESTful
7 56 (4.11%) XML
8 41 (3.01%) RabbitMQ
9 37 (2.72%) .NET
10 35 (2.57%) HTML5
11 34 (2.50%) ActiveMQ
12 32 (2.35%) Spring
13 30 (2.20%) SOAP
14 29 (2.13%) J2EE
15 22 (1.62%) Middleware
16 20 (1.47%) MSMQ
17 18 (1.32%) XHTML
18 17 (1.25%) Memcached
18 17 (1.25%) JSON
19 16 (1.17%) Django
Miscellaneous
1 146 (10.72%) Open Source
2 93 (6.83%) Clustering
3 70 (5.14%) Replication
4 60 (4.41%) Computer Science
5 49 (3.60%) Online Games
6 37 (2.72%) Social Media
7 16 (1.17%) PKI
8 13 (0.95%) E-Learning
9 12 (0.88%) Management Information System
9 12 (0.88%) DTV
9 12 (0.88%) Mobile App
10 11 (0.81%) EqualLogic
11 9 (0.66%) Mathematics
12 8 (0.59%) Fat Client
12 8 (0.59%) Thin Client
12 8 (0.59%) Foreign Exchange (FX)
12 8 (0.59%) VLE
12 8 (0.59%) Enterprise Software
13 7 (0.51%) Mobile Games
14 6 (0.44%) Internet of Things
Operating Systems
1 1260 (92.51%) Linux
2 493 (36.20%) Red Hat Enterprise Linux
3 436 (32.01%) Windows
4 403 (29.59%) Ubuntu
5 244 (17.91%) UNIX
6 224 (16.45%) Debian
7 166 (12.19%) Windows Server 2008
8 105 (7.71%) Fedora
9 100 (7.34%) Windows Server 2012
10 65 (4.77%) Windows Server 2003
11 60 (4.41%) Solaris
12 55 (4.04%) SUSE
13 41 (3.01%) Apple iOS
14 39 (2.86%) Android
15 38 (2.79%) Windows 7
16 30 (2.20%) AIX
17 29 (2.13%) Mac OS X
18 20 (1.47%) Windows 2000 Server
19 13 (0.95%) Windows XP
20 11 (0.81%) Windows 8
Processes & Methodologies
1 332 (24.38%) DevOps
2 161 (11.82%) E-Commerce
3 150 (11.01%) Agile Software Development
4 141 (10.35%) Load Balancing
5 134 (9.84%) Configuration Management
6 124 (9.10%) ITIL
7 91 (6.68%) Scrum
8 89 (6.53%) Continuous Integration
9 66 (4.85%) Service Delivery
10 43 (3.16%) MVC
10 43 (3.16%) Web Development
10 43 (3.16%) Performance Tuning
11 40 (2.94%) Disaster Recovery
12 39 (2.86%) TDD
13 38 (2.79%) Migration
14 37 (2.72%) Software Engineering
15 36 (2.64%) OOP
15 36 (2.64%) Kanban
16 34 (2.50%) Release Management
17 33 (2.42%) Capacity Planning
Programming Languages
1 484 (35.54%) Perl
2 440 (32.31%) Python
3 410 (30.10%) Bash Shell
4 390 (28.63%) PHP
5 314 (23.05%) Java
6 259 (19.02%) Ruby
7 250 (18.36%) SQL
8 104 (7.64%) JavaScript
9 93 (6.83%) Shell Script
10 69 (5.07%) PHP5
11 44 (3.23%) AWK
12 41 (3.01%) PowerShell
13 40 (2.94%) C
14 36 (2.64%) sed
15 32 (2.35%) Scala
16 22 (1.62%) Groovy
17 21 (1.54%) C#
18 19 (1.40%) Bourne shell
19 16 (1.17%) C++
20 15 (1.10%) T-SQL
Qualifications
1 120 (8.81%) Degree
2 58 (4.26%) Cisco Certification
3 40 (2.94%) Microsoft Certification
4 39 (2.86%) RHCE
5 34 (2.50%) CCNA
6 33 (2.42%) MCSE
7 23 (1.69%) CCNP
7 23 (1.69%) Security Cleared
8 22 (1.62%) VMware Certified Professional (VCP)
9 15 (1.10%) SC Cleared
10 14 (1.03%) OSCP
10 14 (1.03%) OSCE
10 14 (1.03%) CEH
11 13 (0.95%) MCITP
12 11 (0.81%) ITIL Certification
12 11 (0.81%) CISSP
13 8 (0.59%) MCSA
14 7 (0.51%) ISEB
15 6 (0.44%) OCP
15 6 (0.44%) Oracle Certification
Quality Assurance & Compliance
1 63 (4.63%) SLA
2 38 (2.79%) PCI DSS
3 35 (2.57%) QA
4 22 (1.62%) ISO/IEC 27001
5 14 (1.03%) HIPAA
6 13 (0.95%) ISO 9001
7 8 (0.59%) ISO 14001
8 3 (0.22%) Sarbanes-Oxley
9 2 (0.15%) GPG13
System Software
1 266 (19.53%) VMware Infrastructure
2 105 (7.71%) Active Directory
3 104 (7.64%) KVM
4 72 (5.29%) NFS
5 62 (4.55%) vSphere
6 57 (4.19%) Xen
7 55 (4.04%) Varnish
8 51 (3.74%) Hyper-V
9 44 (3.23%) VMware ESX
10 34 (2.50%) VMware ESXi
11 33 (2.42%) Squid
12 32 (2.35%) Samba
13 29 (2.13%) Postfix
14 28 (2.06%) vCloud
15 24 (1.76%) Nmap
16 18 (1.32%) Snort
16 18 (1.32%) Sendmail
17 16 (1.17%) XenApp
18 15 (1.10%) XenServer
19 11 (0.81%) VirtualBox
Systems Management
1 510 (37.44%) Puppet
2 317 (23.27%) Opscode Chef
3 273 (20.04%) Nagios
4 99 (7.27%) ZABBIX
5 68 (4.99%) Cacti
6 59 (4.33%) Salt
7 49 (3.60%) Ansible
8 40 (2.94%) CFEngine
9 39 (2.86%) Vagrant
10 38 (2.79%) SCOM
11 37 (2.72%) logstash
12 29 (2.13%) YUM
12 29 (2.13%) Munin
13 28 (2.06%) Opsview
14 26 (1.91%) Nessus
15 25 (1.84%) Zenoss
15 25 (1.84%) Plesk
16 21 (1.54%) Red Hat Spacewalk
16 21 (1.54%) Cobbler
16 21 (1.54%) HAProxy
Vendors
1 880 (64.61%) Red Hat
2 410 (30.10%) VMware
3 150 (11.01%) Oracle
4 147 (10.79%) Cisco
5 120 (8.81%) Microsoft
6 99 (7.27%) HP
7 94 (6.90%) JBoss
8 74 (5.43%) Citrix
9 64 (4.70%) Rackspace
10 49 (3.60%) Zend
11 43 (3.16%) Dell
12 41 (3.01%) NetApp
12 41 (3.01%) Splunk
13 39 (2.86%) F5
14 27 (1.98%) IBM
15 26 (1.91%) SAP
15 26 (1.91%) Juniper
16 25 (1.84%) Perforce
16 25 (1.84%) Percona
17 22 (1.62%) SaltStack
Central London / West End
Understanding Recruitment
Salary: £45000 - £60000 per annum + bens - bonus, gym, pens+
Posted: 8 hours ago
Camberley, Surrey
Peopleworks
Salary: From £30,000 to £40,000 per annum £30,000 to £40,000 Negotiable + 10%
Posted: 13 hours ago
Hampshire
Peopleworks
Salary: From £40,000 to £45,000 per annum £40,000 to £45,000 + Bonus (10%) Neg
Posted: 13 hours ago
London
Burns Sheehan
Salary: £50000 - £70000 per annum + Excellent benefits
Posted: Yesterday
Cardiff, South Glamorgan
Computer Recruiter Ltd
Salary: To £40K + Excellent Benefits
Posted: 2 days ago
Cardiff, South Glamorgan
Computer Recruiter Ltd
Salary: To £40K + Excellent Benefits
Posted: 2 days ago
Leeds, West Yorkshire
Greywood Associates Limited
Salary: £25000 per annum + Benefits
Posted: 2 days ago
London
Austin Fraser
Salary: £55000.00 - £65000.00 per annum + Shares
Posted: 2 days ago
London
Vertical IT
Salary: £65000 - £80000 per annum
Posted: 2 days ago
London
Austin Fraser
Salary: £30000.00 - £35000.00 per annum + Bens
Posted: 2 days ago
West London
Rackspace
Salary: Unspecified Competitive + Bonus
Posted: 2 days ago
Reading, Berkshire
Mortimer Spinks
Salary: £45000 per annum
Posted: 2 days ago
Nottinghamshire
Senitor Associates
Salary: £25000 - £30000 per annum + great company
Posted: 2 days ago
Farnborough, Hampshire
CD Sales Recruitment
Salary: Benefits
Posted: 2 days ago
Leeds, West Yorkshire
Hotfoot Recruitment
Salary: From £45,000 to £55,000 per annum c£50k + 20% Bonus
Posted: 2 days ago
South West London
Oscar Associates (UK) Ltd
Salary: £45000 - £65000 per annum + Benefits
Posted: 2 days ago
Wiltshire
Roc Search
Salary: £4500 - £40000 per annum
Posted: 2 days ago
London
Clear Edge Consulting
Salary: From £50,000 to £70,000 per annum Extensive benefits, share options.
Posted: 2 days ago
City, London
Quant Capital
Salary: Up to £40,000 per annum + bonus benefits
Posted: 3 days ago
Slough, Berkshire
Quant Capital
Salary: Up to £60,000 per annum
Posted: 3 days ago