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 30 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
30 Jul 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 381 401 417
Rank change year-on-year
+20 +16
Permanent jobs citing CentOS 747 624 614
As % of all permanent IT jobs located in the UK 0.64% 0.57% 0.52%
As % of the Operating Systems category 2.39% 2.10% 1.90%
Number of salaries quoted 656 563 515
Average salary £45,000 £45,000 £40,000
Average salary % change year-on-year
- +12.50%
90% offered a salary of more than £30,000 £30,000 £30,000
10% offered a salary of more than £60,000 £62,500 £55,000
UK excluding London average salary £40,000 £38,500 £35,000
% change year-on-year
+3.89% +10.00%
Operating Systems Category
UK
Permanent IT job ads with a match in the
Operating Systems category
31320 29729 32245
As % of all permanent IT jobs located in the UK 26.78% 27.34% 27.41%
Number of salaries quoted 26164 25155 27648
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 £36,947 £37,500 £37,500
% change year-on-year
-1.47% -

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 30 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 30 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 +9 716 £45,000 - 110
London -3 404 £50,000 - 56
South East +10 129 £42,500 - 18
City of London -1 64 £45,000 -10.00% 15
East of England +7 53 £45,000 +12.50% 5
Hampshire 0 44 £41,000 +17.14% 5
South West +10 42 £37,500 +33.54% 10
Berkshire +13 38 £43,375 +20.48% 5
Yorkshire -41 33 £29,000 -27.50% 10
Bristol +14 27 £37,500 +7.14% 1
North West +22 26 £40,750 +16.42% 9
Cambridgeshire +7 26 £42,500 -15.00% 1
Cambridge +15 24 £42,500 -15.00% 1
Surrey -25 22 £50,000 +12.99% 4
Manchester +19 20 £41,250 +6.45% 3
Hertfordshire +10 20 £53,000 +32.50% 5
Basingstoke +14 17 £40,000 -15.78% 2
South Wales +8 16 £34,250 +5.38% 3
Reading +4 16 £42,750 +85.86% 2
Wales 0 16 £34,250 +5.38% 3
Cardiff - 15 £35,000 - 3
East Midlands -11 14 £29,000 -24.67% 2
West Midlands +7 13 £32,500 -7.14% 1
Leeds -52 12 £24,690 -41.90% 8
West Yorkshire -62 12 £24,690 -41.90% 8
Scotland -2 10 £35,750 -12.79% 5
East Yorkshire - 10 £30,500 -
Goole - 10 £30,500 -
Slough +12 8 £45,000 +15.38% 2
Guildford +4 8 £42,500 -10.52%

CentOS
Top 30 Related IT Skills

For the 6 months to 30 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 1304 (93.48%) Linux
2 900 (64.52%) Red Hat
3 620 (44.44%) MySQL
4 536 (38.42%) Apache
5 522 (37.42%) Puppet
6 516 (36.99%) Red Hat Enterprise Linux
7 493 (35.34%) Perl
8 462 (33.12%) Python
9 444 (31.83%) Windows
10 437 (31.33%) Bash Shell
11 431 (30.90%) VMware
12 413 (29.61%) Ubuntu
13 400 (28.67%) PHP
14 346 (24.80%) DevOps
15 331 (23.73%) Opscode Chef
16 316 (22.65%) Java
17 285 (20.43%) VMware Infrastructure
18 283 (20.29%) DNS
19 278 (19.93%) TCP/IP
19 278 (19.93%) Nagios
20 277 (19.86%) SQL
20 277 (19.86%) Ruby
21 251 (17.99%) Debian
22 249 (17.85%) Tomcat
23 247 (17.71%) UNIX
24 242 (17.35%) Git (software)
25 201 (14.41%) Firewall
26 200 (14.34%) Web Services
27 199 (14.27%) Amazon AWS
28 173 (12.40%) Windows Server 2008

CentOS
Top Related IT Skills by Category

For the 6 months to 30 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
1 536 (38.42%) Apache
2 249 (17.85%) Tomcat
3 157 (11.25%) nginx
4 109 (7.81%) IIS
5 61 (4.37%) Drupal
6 58 (4.16%) OpenStack
7 54 (3.87%) Elasticsearch
8 48 (3.44%) MS Exchange
8 48 (3.44%) CMS
9 46 (3.30%) WordPress
10 35 (2.51%) WebLogic
11 27 (1.94%) Exchange Server 2010
12 23 (1.65%) Confluence
13 20 (1.43%) Apache Solr
14 19 (1.36%) Node.js
15 18 (1.29%) Exchange Server 2013
15 18 (1.29%) GlassFish
15 18 (1.29%) Alfresco
15 18 (1.29%) Oracle HTTP Server
16 16 (1.15%) Moodle
Applications
1 71 (5.09%) MS Excel
2 10 (0.72%) Photoshop
3 9 (0.65%) Adobe Illustrator
4 6 (0.43%) Mingle
5 3 (0.22%) MS Visio
6 1 (0.072%) Fireworks
6 1 (0.072%) Doxygen
Business Applications
1 19 (1.36%) Magento
2 15 (1.08%) Shopify
3 9 (0.65%) Oracle EBS
3 9 (0.65%) SAP Oil and Gas
4 6 (0.43%) Dynamics CRM
5 3 (0.22%) Summit
5 3 (0.22%) Google Analytics
6 2 (0.14%) RMDS
6 2 (0.14%) Dynamics AX
6 2 (0.14%) Oracle CRM
Cloud Services
1 199 (14.27%) Amazon AWS
2 91 (6.52%) SaaS
3 57 (4.09%) Amazon EC2
4 33 (2.37%) Amazon S3
5 29 (2.08%) Amazon ELB
6 19 (1.36%) Cloud Computing
7 18 (1.29%) Route 53
8 16 (1.15%) Microsoft Azure
9 9 (0.65%) GitHub
10 8 (0.57%) Rackspace Cloud
11 7 (0.50%) Office 365
12 4 (0.29%) Amazon SQS
12 4 (0.29%) Heroku
13 3 (0.22%) CloudFront
13 3 (0.22%) IaaS
14 2 (0.14%) PaaS
15 1 (0.072%) Engine Yard
15 1 (0.072%) Google Apps
15 1 (0.072%) Amazon EMR
15 1 (0.072%) ElastiCache
Communications & Networking
1 283 (20.29%) DNS
2 278 (19.93%) TCP/IP
3 201 (14.41%) Firewall
4 165 (11.83%) HTTP
5 163 (11.68%) SAN
6 134 (9.61%) VPN
7 122 (8.75%) SSL
8 103 (7.38%) DHCP
9 101 (7.24%) Internet
10 87 (6.24%) LDAP
11 85 (6.09%) SSH
12 75 (5.38%) NAS
13 71 (5.09%) LAN
14 70 (5.02%) SMTP
15 60 (4.30%) IPsec
16 58 (4.16%) WAN
17 56 (4.01%) Ethernet
18 49 (3.51%) SNMP
19 44 (3.15%) BGP
19 44 (3.15%) Cisco ASA
Database & Business Intelligence
1 620 (44.44%) MySQL
2 148 (10.61%) SQL Server
3 135 (9.68%) MongoDB
4 134 (9.61%) PostgreSQL
5 110 (7.89%) NoSQL
6 79 (5.66%) Redis
7 68 (4.87%) Hadoop
8 62 (4.44%) Relational Database
9 61 (4.37%) Big Data
10 55 (3.94%) Apache Cassandra
11 40 (2.87%) SQL Server 2008
12 28 (2.01%) Amazon RDS
12 28 (2.01%) Amazon DynamoDB
13 27 (1.94%) RDBMS
13 27 (1.94%) DB2
14 26 (1.86%) Oracle Database
15 25 (1.79%) SQL Server 2005
16 22 (1.58%) MariaDB
17 21 (1.51%) SQL Server Integration Services
18 19 (1.36%) CouchDB
Development Applications
1 242 (17.35%) Git (software)
2 158 (11.33%) Jenkins
3 130 (9.32%) Subversion
4 50 (3.58%) Maven
5 36 (2.58%) JIRA
6 35 (2.51%) Hudson
7 16 (1.15%) Eclipse
7 16 (1.15%) JUnit
8 15 (1.08%) Atlassian Bamboo
9 13 (0.93%) Metasploit
9 13 (0.93%) Juju
10 11 (0.79%) Ant
10 11 (0.79%) Octopus Deploy
11 10 (0.72%) Mercurial
12 9 (0.65%) Selenium
13 8 (0.57%) Dreamweaver
14 7 (0.50%) Visual Studio
14 7 (0.50%) TeamCity
15 6 (0.43%) MSTest
15 6 (0.43%) NUnit
General
1 167 (11.97%) Finance
2 108 (7.74%) Games
3 101 (7.24%) Telecoms
4 49 (3.51%) Marketing
5 39 (2.80%) Online Betting
6 28 (2.01%) Retail
7 26 (1.86%) Back Office
8 24 (1.72%) Banking
9 18 (1.29%) Manufacturing
10 15 (1.08%) Advertising
11 14 (1.00%) Publishing
12 13 (0.93%) Welsh Language
13 11 (0.79%) Pharmaceutical
14 10 (0.72%) Electronics
15 3 (0.22%) Automotive
15 3 (0.22%) Law
16 2 (0.14%) Multimedia
16 2 (0.14%) Investment Banking
16 2 (0.14%) Financial Institution
16 2 (0.14%) Legal
Job Titles
1 475 (34.05%) Administrator
2 422 (30.25%) Systems Administrator
3 397 (28.46%) Linux Administrator
4 314 (22.51%) Linux Systems Administrator
5 215 (15.41%) Linux Engineer
6 179 (12.83%) Developer
7 138 (9.89%) DevOps Engineer
8 115 (8.24%) Support Engineer
9 111 (7.96%) Senior Systems Administrator
10 103 (7.38%) Systems Engineer
11 91 (6.52%) Senior Linux Administrator
12 86 (6.16%) Senior Linux Systems Administrator
13 74 (5.30%) Infrastructure Engineer
14 67 (4.80%) PHP Developer
15 47 (3.37%) Senior Linux Engineer
16 43 (3.08%) Analyst
17 42 (3.01%) Senior DevOps Engineer
18 39 (2.80%) Consultant
19 36 (2.58%) Junior
20 35 (2.51%) UNIX Administrator
Libraries, Frameworks & Software Standards
1 200 (14.34%) Web Services
2 163 (11.68%) LAMP
3 126 (9.03%) CSS
3 126 (9.03%) HTML
4 106 (7.60%) jQuery
5 62 (4.44%) RESTful
6 61 (4.37%) XML
7 48 (3.44%) .NET
8 40 (2.87%) SOAP
9 39 (2.80%) RabbitMQ
10 37 (2.65%) HTML5
11 31 (2.22%) ActiveMQ
12 28 (2.01%) MSMQ
12 28 (2.01%) Spring
13 25 (1.79%) J2EE
13 25 (1.79%) ASP.NET
14 22 (1.58%) ASP.NET MVC
14 22 (1.58%) Memcached
14 22 (1.58%) Django
15 21 (1.51%) XHTML
Miscellaneous
1 142 (10.18%) Open Source
2 92 (6.59%) Clustering
3 69 (4.95%) Replication
4 63 (4.52%) Computer Science
5 46 (3.30%) Online Games
6 37 (2.65%) Social Media
7 17 (1.22%) PKI
8 16 (1.15%) E-Learning
8 16 (1.15%) Management Information System
9 13 (0.93%) Mathematics
9 13 (0.93%) EqualLogic
9 13 (0.93%) Mobile App
10 9 (0.65%) DTV
10 9 (0.65%) VLE
10 9 (0.65%) Learning Management System
11 8 (0.57%) Enterprise Software
11 8 (0.57%) Fat Client
11 8 (0.57%) Data Extraction
11 8 (0.57%) Hedge funds
11 8 (0.57%) Thin Client
Operating Systems
1 1304 (93.48%) Linux
2 516 (36.99%) Red Hat Enterprise Linux
3 444 (31.83%) Windows
4 413 (29.61%) Ubuntu
5 251 (17.99%) Debian
6 247 (17.71%) UNIX
7 173 (12.40%) Windows Server 2008
8 118 (8.46%) Fedora
9 91 (6.52%) Windows Server 2012
10 73 (5.23%) Windows Server 2003
11 63 (4.52%) Solaris
12 57 (4.09%) SUSE
13 37 (2.65%) Apple iOS
14 35 (2.51%) Android
15 32 (2.29%) Windows 7
16 30 (2.15%) AIX
17 26 (1.86%) Mac OS X
18 15 (1.08%) Windows 2000 Server
19 13 (0.93%) SELinux
20 12 (0.86%) Windows XP
Processes & Methodologies
1 346 (24.80%) DevOps
2 162 (11.61%) E-Commerce
3 152 (10.90%) Load Balancing
4 150 (10.75%) Agile Software Development
5 139 (9.96%) ITIL
6 133 (9.53%) Configuration Management
7 91 (6.52%) Continuous Integration
8 85 (6.09%) Scrum
9 70 (5.02%) Service Delivery
10 56 (4.01%) MVC
11 49 (3.51%) Performance Tuning
12 45 (3.23%) Web Development
13 44 (3.15%) Software Engineering
14 40 (2.87%) OOP
14 40 (2.87%) TDD
15 37 (2.65%) SOA
15 37 (2.65%) Disaster Recovery
16 36 (2.58%) Migration
16 36 (2.58%) Kanban
17 32 (2.29%) Analytics
Programming Languages
1 493 (35.34%) Perl
2 462 (33.12%) Python
3 437 (31.33%) Bash Shell
4 400 (28.67%) PHP
5 316 (22.65%) Java
6 277 (19.86%) SQL
6 277 (19.86%) Ruby
7 104 (7.46%) JavaScript
8 95 (6.81%) Shell Script
9 70 (5.02%) PHP5
10 51 (3.66%) PowerShell
11 45 (3.23%) AWK
12 41 (2.94%) sed
12 41 (2.94%) C
13 31 (2.22%) C#
14 29 (2.08%) Scala
15 26 (1.86%) T-SQL
16 21 (1.51%) C++
17 19 (1.36%) Bourne shell
18 18 (1.29%) Groovy
Qualifications
1 119 (8.53%) Degree
2 67 (4.80%) Cisco Certification
3 42 (3.01%) Microsoft Certification
4 36 (2.58%) CCNA
4 36 (2.58%) MCSE
4 36 (2.58%) RHCE
5 32 (2.29%) VMware Certified Professional (VCP)
6 31 (2.22%) CCNP
7 29 (2.08%) Security Cleared
8 16 (1.15%) OSCP
8 16 (1.15%) OSCE
8 16 (1.15%) CEH
9 15 (1.08%) MCITP
9 15 (1.08%) SC Cleared
10 12 (0.86%) CISSP
11 10 (0.72%) ITIL Certification
12 9 (0.65%) MCP
12 9 (0.65%) OCP
12 9 (0.65%) Oracle Certification
12 9 (0.65%) MCTS
Quality Assurance & Compliance
1 67 (4.80%) SLA
2 37 (2.65%) PCI DSS
3 35 (2.51%) QA
4 28 (2.01%) ISO/IEC 27001
5 15 (1.08%) ISO 9001
6 13 (0.93%) HIPAA
7 12 (0.86%) ISO 14001
8 3 (0.22%) Sarbanes-Oxley
9 2 (0.14%) GPG13
System Software
1 285 (20.43%) VMware Infrastructure
2 109 (7.81%) KVM
3 104 (7.46%) Active Directory
4 88 (6.31%) vSphere
5 68 (4.87%) NFS
6 60 (4.30%) Xen
7 54 (3.87%) Varnish
8 49 (3.51%) Hyper-V
9 42 (3.01%) VMware ESX
10 38 (2.72%) VMware ESXi
10 38 (2.72%) vCloud
11 34 (2.44%) Samba
12 32 (2.29%) Squid
13 26 (1.86%) Nmap
13 26 (1.86%) Postfix
14 18 (1.29%) Snort
15 17 (1.22%) Sendmail
15 17 (1.22%) XenServer
16 12 (0.86%) XenApp
17 11 (0.79%) Oracle RMAN
Systems Management
1 522 (37.42%) Puppet
2 331 (23.73%) Opscode Chef
3 278 (19.93%) Nagios
4 105 (7.53%) ZABBIX
5 78 (5.59%) Cacti
6 64 (4.59%) Salt
7 56 (4.01%) Ansible
8 50 (3.58%) CFEngine
9 37 (2.65%) Vagrant
10 36 (2.58%) SCOM
10 36 (2.58%) logstash
11 30 (2.15%) YUM
12 28 (2.01%) Opsview
13 27 (1.94%) Munin
13 27 (1.94%) Zenoss
13 27 (1.94%) Nessus
14 21 (1.51%) HAProxy
15 19 (1.36%) Plesk
15 19 (1.36%) Red Hat Spacewalk
16 17 (1.22%) SCCM
Vendors
1 900 (64.52%) Red Hat
2 431 (30.90%) VMware
3 167 (11.97%) Cisco
4 153 (10.97%) Oracle
5 122 (8.75%) Microsoft
6 102 (7.31%) HP
7 90 (6.45%) JBoss
8 77 (5.52%) Citrix
9 65 (4.66%) Rackspace
10 51 (3.66%) Zend
11 48 (3.44%) F5
11 48 (3.44%) Dell
11 48 (3.44%) NetApp
12 36 (2.58%) Splunk
13 32 (2.29%) Juniper
14 28 (2.01%) SAP
15 27 (1.94%) Perforce
15 27 (1.94%) EMC
15 27 (1.94%) IBM
16 25 (1.79%) SaltStack
Leeds, West Yorkshire
HAYS INFORMATION TECHNOLOGY
Salary: £21388 - £27901 per annum + Shift Allowance
Posted: 8 hours ago
Hertfordshire
Vertical IT
Salary: £23000 - £32000 per annum
Posted: 8 hours ago
Lichfield, Staffordshire
Circle Recruitment
Salary: £15000 - £40000 per annum + Benefits
Posted: 9 hours ago
London
ISL
Salary: £45000 - £55000 per annum
Posted: 10 hours ago
Cardiff, South Glamorgan
Intapeople
Salary: £30000 to £40000 per annum
Posted: 10 hours ago
City, London
Bridge Noble
Salary: £50000 - £65000 per annum + experience dependent
Posted: 13 hours ago
South West London
Oscar Associates (UK) Ltd
Salary: £20000 - £25000 per annum
Posted: 15 hours ago
South West London
Oscar Associates (UK) Ltd
Salary: £20000 - £30000 per annum + Benefits
Posted: 15 hours ago
Reading, Berkshire
83Zero
Salary: From £30,000 to £40,000 per annum + 9% Pension, Healthcare, Life Insur
Posted: 15 hours ago
Central London / West End
Opus Recruitment Solutions Ltd
Salary: £35000 to £40000 per annum
Posted: 16 hours ago
West London
Blue Glue
Salary: From £50,000 to £60,000 per annum
Posted: 16 hours ago
Edinburgh, Midlothian
Dell (UK)
Salary: Competitive
Posted: 18 hours ago
Edinburgh, Midlothian
Dell (UK)
Salary: Competitive
Posted: 18 hours ago
City, London
Xist4 IT Recruitment
Salary: £45-65,000 + Bens
Posted: Yesterday
Surrey
Yoh
Posted: Yesterday
Isleworth, Middlesex
Opus Resourcing Ltd
Salary: £50000 - £65000 per annum + Generous Bens + Bonus
Posted: Yesterday
Wilmslow, Cheshire
Greywood Associates Limited
Salary: £40000 - £60000 per annum + bens
Posted: Yesterday
City, London
Quant Capital
Salary: Up to £40,000 per annum + bonus benefits
Posted: Yesterday
City, London
Oscar Associates (UK) Ltd
Salary: £35000 - £40000 per annum + Benefits
Posted: Yesterday
London
Eaglecliff
Salary: From £50,000 to £60,000 per annum + Benefits
Posted: Yesterday