The table below looks at the statistics 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 September 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
30 Sep 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 385 384 409
Rank change year-on-year
-1 +25
Permanent jobs citing CentOS 772 663 654
As % of all permanent IT jobs located in the UK 0.68% 0.62% 0.56%
As % of the Operating Systems category 2.52% 2.28% 2.00%
Number of salaries quoted 684 604 589
Average salary £45,000 £45,000 £44,000
Average salary % change year-on-year
- +2.27%
90% offered a salary of more than £32,500 £32,500 £30,000
10% offered a salary of more than £64,000 £60,000 £55,100
UK excluding London average salary £40,000 £40,000 £37,500
% change year-on-year
- +6.66%

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in permanent jobs advertised across the UK.

Operating Systems Category
UK
Permanent IT job ads with a match in the
Operating Systems category
30616 29122 32697
As % of all permanent IT jobs located in the UK 26.88% 27.22% 27.94%
Number of salaries quoted 25292 24837 27912
Average salary £40,000 £41,000 £40,000
Average salary % change year-on-year
-2.43% +2.50%
90% offered a salary of more than £25,000 £25,000 £25,000
10% offered a salary of more than £65,000 £60,000 £62,500
UK excluding London average salary £37,000 £37,500 £37,500
% change year-on-year
-1.33% -

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 September 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 September 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 +4 735 £45,000 - 84
London +4 418 £50,000 - 35
South East +34 168 £42,500 +6.25% 13
City of London +9 62 £45,000 -18.18% 6
Surrey +14 52 £42,500 +6.25% 3
Hampshire -7 52 £42,500 +30.76% 3
Berkshire +16 46 £42,750 -5.00% 4
East of England -10 42 £42,000 +5.00% 1
Yorkshire -43 36 £30,000 -25.00% 7
Leeds -20 34 £31,500 -21.25% 2
West Yorkshire -35 34 £31,500 -21.25% 3
Reading +18 26 £22,000 -58.09% 2
South West 0 26 £45,000 +63.63% 11
West Midlands +3 23 £32,500 -7.14% 6
Basingstoke +19 22 £40,000 -15.78%
Cambridge +7 18 £42,000 +7.00% 1
Scotland -5 18 £42,500 +3.67%
Cambridgeshire -9 18 £42,000 +5.00% 1
North West -11 17 £30,000 -16.66% 6
Guildford +14 16 £37,500 -21.87% 1
South Wales +24 15 £34,000 +4.61% 1
Wales +12 15 £34,000 +4.61% 1
Hertfordshire 0 14 £60,000 +140.00%
Edinburgh - 14 £42,500 -
Coventry -2 13 £32,500 -
Bristol +4 12 £32,500 +41.30% 8
Maidenhead -13 12 £57,500 +21.05%
Buckinghamshire +20 11 £40,000 +6.66%
Cardiff +4 10 £35,000 +37.25%
Milton Keynes - 10 £40,000 -

CentOS
Top 30 Related IT Skills

For the 6 months to 30 September 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 1411 (94.95%) Linux
2 972 (65.41%) Red Hat
3 614 (41.32%) Red Hat Enterprise Linux
4 608 (40.92%) MySQL
5 598 (40.24%) Puppet
6 548 (36.88%) Python
7 539 (36.27%) Perl
8 519 (34.93%) Apache
9 488 (32.84%) Windows
10 482 (32.44%) VMware
11 480 (32.30%) Bash Shell
12 449 (30.22%) Ubuntu
13 435 (29.27%) PHP
14 372 (25.03%) DevOps
15 356 (23.96%) Opscode Chef
16 319 (21.47%) VMware Infrastructure
17 317 (21.33%) Java
18 311 (20.93%) Nagios
19 310 (20.86%) SQL
19 310 (20.86%) Ruby
20 300 (20.19%) Agile Software Development
21 296 (19.92%) TCP/IP
21 296 (19.92%) Git (software)
22 280 (18.84%) Debian
23 277 (18.64%) DNS
24 273 (18.37%) UNIX
25 249 (16.76%) Tomcat
26 203 (13.66%) LAMP
27 196 (13.19%) Amazon AWS
28 193 (12.99%) Jenkins

CentOS
Top Related IT Skills by Category

For the 6 months to 30 September 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
1 519 (34.93%) Apache
2 249 (16.76%) Tomcat
3 166 (11.17%) nginx
4 101 (6.80%) IIS
5 61 (4.10%) OpenStack
6 53 (3.57%) Elasticsearch
7 47 (3.16%) MS Exchange
8 46 (3.10%) Drupal
9 41 (2.76%) WordPress
9 41 (2.76%) WebLogic
10 33 (2.22%) Confluence
11 29 (1.95%) CMS
12 25 (1.68%) Exchange Server 2010
12 25 (1.68%) Node.js
13 24 (1.62%) K2 blackpearl
14 22 (1.48%) Apache Solr
15 19 (1.28%) Moodle
15 19 (1.28%) Exchange Server 2013
16 17 (1.14%) WebSphere
17 16 (1.08%) Lync
Applications
1 65 (4.37%) MS Excel
2 9 (0.61%) Photoshop
3 8 (0.54%) Adobe Illustrator
4 7 (0.47%) Mingle
5 4 (0.27%) MS Visio
6 2 (0.13%) MS Office
7 1 (0.067%) Doxygen
7 1 (0.067%) Maya
7 1 (0.067%) 3ds Max
Business Applications
1 22 (1.48%) Magento
2 15 (1.01%) Oracle EBS
3 12 (0.81%) Shopify
4 11 (0.74%) SAP Oil and Gas
5 2 (0.13%) RMDS
5 2 (0.13%) Oracle BPM
5 2 (0.13%) Dynamics CRM
6 1 (0.067%) Google Analytics
6 1 (0.067%) Dynamics NAV
Cloud Services
1 196 (13.19%) Amazon AWS
2 82 (5.52%) SaaS
3 54 (3.63%) Amazon EC2
4 30 (2.02%) Amazon S3
5 24 (1.62%) Cloud Computing
6 23 (1.55%) Amazon ELB
7 16 (1.08%) Rackspace Cloud
8 12 (0.81%) Microsoft Azure
9 11 (0.74%) GitHub
10 7 (0.47%) Route 53
11 5 (0.34%) Amazon SQS
12 4 (0.27%) IaaS
13 3 (0.20%) Office 365
13 3 (0.20%) Heroku
14 2 (0.13%) PaaS
14 2 (0.13%) Amazon EMR
15 1 (0.067%) ElastiCache
15 1 (0.067%) AWS Data Pipeline
15 1 (0.067%) Amazon ElastiCache
15 1 (0.067%) Google Apps
Communications & Networking
1 296 (19.92%) TCP/IP
2 277 (18.64%) DNS
3 189 (12.72%) HTTP
4 186 (12.52%) SAN
5 183 (12.31%) Firewall
6 146 (9.83%) SSL
7 122 (8.21%) VPN
8 121 (8.14%) DHCP
9 112 (7.54%) LDAP
10 105 (7.07%) SSH
11 89 (5.99%) LAN
12 87 (5.85%) NAS
13 85 (5.72%) Internet
14 83 (5.59%) WAN
15 75 (5.05%) IPsec
16 68 (4.58%) SMTP
17 54 (3.63%) SNMP
18 51 (3.43%) Cisco ASA
19 49 (3.30%) BGP
20 48 (3.23%) Ethernet
Database & Business Intelligence
1 608 (40.92%) MySQL
2 140 (9.42%) MongoDB
3 139 (9.35%) SQL Server
4 125 (8.41%) PostgreSQL
5 120 (8.08%) NoSQL
6 76 (5.11%) Redis
7 73 (4.91%) Big Data
8 72 (4.85%) Hadoop
9 61 (4.10%) Apache Cassandra
10 60 (4.04%) Relational Database
11 39 (2.62%) Oracle Database
12 32 (2.15%) SQL Server 2008
12 32 (2.15%) DB2
13 31 (2.09%) SQL Server 2005
14 30 (2.02%) MariaDB
15 28 (1.88%) CouchDB
16 26 (1.75%) SQL Server Integration Services
17 24 (1.62%) RDBMS
18 23 (1.55%) SQL Server 2012
19 22 (1.48%) Amazon DynamoDB
Development Applications
1 296 (19.92%) Git (software)
2 193 (12.99%) Jenkins
3 144 (9.69%) Subversion
4 60 (4.04%) JIRA
5 45 (3.03%) Hudson
6 39 (2.62%) Maven
7 20 (1.35%) Atlassian Bamboo
8 13 (0.87%) Juju
9 12 (0.81%) TeamCity
9 12 (0.81%) Mercurial
9 12 (0.81%) Visual Studio
10 11 (0.74%) JUnit
11 9 (0.61%) Selenium
11 9 (0.61%) FishEye
12 8 (0.54%) Eclipse
12 8 (0.54%) Dreamweaver
13 7 (0.47%) NUnit
13 7 (0.47%) Metasploit
13 7 (0.47%) Behat
13 7 (0.47%) MSTest
General
1 180 (12.11%) Finance
2 79 (5.32%) Games
3 70 (4.71%) Telecoms
4 51 (3.43%) Marketing
5 27 (1.82%) Back Office
5 27 (1.82%) Banking
6 25 (1.68%) Retail
7 24 (1.62%) Online Betting
8 23 (1.55%) Advertising
9 19 (1.28%) Publishing
9 19 (1.28%) Manufacturing
10 15 (1.01%) Welsh Language
11 13 (0.87%) Legal
12 11 (0.74%) Electronics
13 10 (0.67%) Pharmaceutical
14 7 (0.47%) Financial Institution
15 5 (0.34%) Investment Banking
16 4 (0.27%) Law
17 2 (0.13%) Aerospace
17 2 (0.13%) Automotive
Job Titles
1 473 (31.83%) Administrator
2 422 (28.40%) Systems Administrator
3 384 (25.84%) Linux Administrator
4 313 (21.06%) Linux Systems Administrator
5 214 (14.40%) Linux Engineer
6 179 (12.05%) Developer
7 144 (9.69%) DevOps Engineer
8 107 (7.20%) Senior Systems Administrator
9 106 (7.13%) Support Engineer
10 92 (6.19%) Senior Linux Administrator
11 90 (6.06%) Linux DevOps Engineer
12 86 (5.79%) Systems Engineer
13 82 (5.52%) Infrastructure Engineer
14 81 (5.45%) Senior Linux Systems Administrator
15 76 (5.11%) PHP Developer
16 61 (4.10%) Analyst
17 47 (3.16%) UNIX Administrator
18 44 (2.96%) Senior Linux Engineer
19 38 (2.56%) Senior DevOps Engineer
20 34 (2.29%) Junior
Libraries, Frameworks & Software Standards
1 203 (13.66%) LAMP
2 188 (12.65%) Web Services
3 148 (9.96%) HTML
3 148 (9.96%) CSS
4 122 (8.21%) jQuery
5 75 (5.05%) XML
6 56 (3.77%) RESTful
7 55 (3.70%) HTML5
7 55 (3.70%) .NET
8 53 (3.57%) SOAP
9 41 (2.76%) RabbitMQ
10 38 (2.56%) MSMQ
11 37 (2.49%) ASP.NET
12 36 (2.42%) ASP.NET MVC
13 33 (2.22%) REST
13 33 (2.22%) Memcached
14 31 (2.09%) ActiveMQ
15 30 (2.02%) Django
16 29 (1.95%) ASP.NET MVC 4
16 29 (1.95%) ASP.NET Web API
Miscellaneous
1 157 (10.57%) Open Source
2 79 (5.32%) Clustering
3 70 (4.71%) Computer Science
4 58 (3.90%) Replication
5 52 (3.50%) Analytical Skills
6 33 (2.22%) Online Games
7 32 (2.15%) Social Media
8 24 (1.62%) Hedge funds
9 21 (1.41%) E-Learning
10 20 (1.35%) Management Information System
11 17 (1.14%) Mathematics
11 17 (1.14%) PKI
11 17 (1.14%) Digital Media
12 15 (1.01%) Learning Management System
12 15 (1.01%) VLE
12 15 (1.01%) DTV
13 14 (0.94%) User Experience
14 11 (0.74%) Data Extraction
14 11 (0.74%) Mobile App
15 9 (0.61%) Derivative
Operating Systems
1 1411 (94.95%) Linux
2 614 (41.32%) Red Hat Enterprise Linux
3 488 (32.84%) Windows
4 449 (30.22%) Ubuntu
5 280 (18.84%) Debian
6 273 (18.37%) UNIX
7 154 (10.36%) Windows Server 2008
8 119 (8.01%) Fedora
9 85 (5.72%) Windows Server 2012
10 84 (5.65%) Windows Server 2003
11 83 (5.59%) Solaris
12 76 (5.11%) SUSE
13 28 (1.88%) Windows 7
14 27 (1.82%) HPUX
15 24 (1.62%) AIX
15 24 (1.62%) Apple iOS
16 23 (1.55%) Android
17 20 (1.35%) Mac OS X
18 15 (1.01%) Oracle Linux
19 13 (0.87%) Windows 2000 Server
Processes & Methodologies
1 372 (25.03%) DevOps
2 300 (20.19%) Agile Software Development
3 177 (11.91%) ITIL
4 157 (10.57%) Load Balancing
5 144 (9.69%) E-Commerce
6 132 (8.88%) Configuration Management
7 110 (7.40%) Continuous Integration
8 91 (6.12%) Scrum
9 78 (5.25%) Mentoring
10 75 (5.05%) Service Delivery
11 74 (4.98%) MVC
12 57 (3.84%) Performance Tuning
13 54 (3.63%) TDD
13 54 (3.63%) Software Engineering
14 47 (3.16%) Web Development
14 47 (3.16%) SOA
15 44 (2.96%) OOP
16 41 (2.76%) Service Management
17 40 (2.69%) Project Management
18 38 (2.56%) OO
Programming Languages
1 548 (36.88%) Python
2 539 (36.27%) Perl
3 480 (32.30%) Bash Shell
4 435 (29.27%) PHP
5 317 (21.33%) Java
6 310 (20.86%) SQL
6 310 (20.86%) Ruby
7 118 (7.94%) Shell Script
8 110 (7.40%) JavaScript
9 79 (5.32%) PHP5
10 73 (4.91%) PowerShell
11 46 (3.10%) sed
12 44 (2.96%) C#
12 44 (2.96%) T-SQL
12 44 (2.96%) AWK
13 40 (2.69%) C
14 28 (1.88%) C++
15 25 (1.68%) Scala
16 17 (1.14%) Korn
17 14 (0.94%) Bourne shell
Qualifications
1 117 (7.87%) Degree
2 88 (5.92%) Cisco Certification
3 55 (3.70%) VMware Certified Professional (VCP)
4 49 (3.30%) CCNP
5 47 (3.16%) CCNA
6 41 (2.76%) Security Cleared
7 39 (2.62%) RHCE
8 36 (2.42%) Microsoft Certification
9 32 (2.15%) MCSE
10 20 (1.35%) SC Cleared
11 16 (1.08%) MCP
12 14 (0.94%) MCITP
12 14 (0.94%) CEH
12 14 (0.94%) DV Cleared
12 14 (0.94%) OSCP
12 14 (0.94%) OSCE
13 10 (0.67%) MCTS
13 10 (0.67%) ITIL Certification
13 10 (0.67%) OCP
13 10 (0.67%) Oracle Certification
Quality Assurance & Compliance
1 58 (3.90%) SLA
2 40 (2.69%) ISO/IEC 27001
3 36 (2.42%) QA
4 34 (2.29%) PCI DSS
5 18 (1.21%) ISO 9001
6 16 (1.08%) ISO 14001
7 8 (0.54%) HIPAA
8 4 (0.27%) Sarbanes-Oxley
9 1 (0.067%) GPG13
System Software
1 319 (21.47%) VMware Infrastructure
2 126 (8.48%) vSphere
3 98 (6.59%) KVM
4 93 (6.26%) Active Directory
5 73 (4.91%) Xen
6 58 (3.90%) vCloud
7 54 (3.63%) Varnish
8 53 (3.57%) NFS
9 45 (3.03%) Samba
9 45 (3.03%) VMware ESXi
10 41 (2.76%) Hyper-V
11 39 (2.62%) VMware ESX
12 31 (2.09%) XenServer
13 28 (1.88%) Squid
14 21 (1.41%) Nmap
15 19 (1.28%) Postfix
15 19 (1.28%) Docker
16 17 (1.14%) Veritas Cluster Server
17 16 (1.08%) Shibboleth
18 14 (0.94%) Ceph
Systems Management
1 598 (40.24%) Puppet
2 356 (23.96%) Opscode Chef
3 311 (20.93%) Nagios
4 117 (7.87%) ZABBIX
5 89 (5.99%) Cacti
6 82 (5.52%) Salt
7 66 (4.44%) Ansible
8 62 (4.17%) CFEngine
9 53 (3.57%) Vagrant
10 35 (2.36%) SCOM
10 35 (2.36%) Zenoss
11 33 (2.22%) YUM
11 33 (2.22%) Opsview
12 31 (2.09%) logstash
13 24 (1.62%) ITRS Geneos
13 24 (1.62%) SCCM
14 22 (1.48%) Munin
15 20 (1.35%) Nessus
16 17 (1.14%) Veritas Storage Foundation
17 16 (1.08%) HAProxy
Vendors
1 972 (65.41%) Red Hat
2 482 (32.44%) VMware
3 165 (11.10%) Oracle
4 161 (10.83%) Cisco
5 156 (10.50%) Microsoft
6 115 (7.74%) HP
7 94 (6.33%) JBoss
8 74 (4.98%) Citrix
9 73 (4.91%) Rackspace
10 72 (4.85%) Zend
11 57 (3.84%) Dell
12 55 (3.70%) F5
13 53 (3.57%) NetApp
14 50 (3.36%) IBM
15 48 (3.23%) EMC
16 36 (2.42%) Splunk
16 36 (2.42%) Perforce
17 34 (2.29%) Juniper
18 33 (2.22%) Symantec
19 31 (2.09%) SAP
London
E-synergy Solutions
Salary: £35000 - £40000 per annum
Posted: 1 hour ago
Central London / West End
Evolution Recruitment Solutions
Salary: 35,000 - 40,000
Posted: 3 hours ago
Cambridge, Cambridgeshire
ARM Ltd
Salary: Competitive
Posted: 3 hours ago
London
Digitech Resourcing Ltd
Salary: From £45,000 to £55,000 per annum + great benefits + bonus
Posted: 3 hours ago
City, London
Digitech Resourcing Ltd
Salary: From £50,000 to £60,000 per annum + benefits
Posted: 3 hours ago
City, London
Oscar Associates (UK) Ltd
Salary: £40000 - £45000 per annum + Benefits
Posted: 4 hours ago
Cwmbran, Gwent
Real Time Recruitment Solutions
Salary: 32,000-36,000 + Fantastic Benefits
Posted: 4 hours ago
Nottingham, Nottinghamshire
Oscar Associates (UK) Ltd
Salary: £18000 - £24000 per annum + Benefits
Posted: 5 hours ago
London
TEKsystems
Salary: £30000 - £60000 per annum
Posted: 19 hours ago
Staines, Middlesex
Lawrence Harvey IT & Change
Salary: £50000 - £55000 per annum + 15% Bonus
Posted: 20 hours ago
Belfast, County Antrim
HAYS INFORMATION TECHNOLOGY
Salary: £25000.00 - £35000.00 per annum
Posted: 20 hours ago
Cheshire
Oscar Associates (UK) Ltd
Salary: £350 - £450 per day
Posted: 20 hours ago
City, London
Client Server
Salary: £30k to £40k + bonus + benefits
Posted: Yesterday
City, London
Understanding Recruitment
Salary: £35000.00 - £40000.00 per annum + Benefits
Posted: Yesterday
Newcastle Upon Tyne, Tyne and Wear
Solutions Recruitment
Salary: From £24,000 to £28,000 per annum
Posted: Yesterday
Chertsey, Surrey
Think IT Recruitment
Salary: £50000 - £60000 per annum + Bonus + Benefits
Posted: Yesterday
Reading, Berkshire
83Zero
Salary: From £30,000 to £42,000 per annum + Benefits Package
Posted: Yesterday
Harrogate, North Yorkshire
Senitor Associates
Salary: £40000 per annum
Posted: 2 days ago
Stoke-On-Trent, Staffordshire
Saxon Recruitment Solutions
Salary: £35000 - £45000 per annum + + Excellent Bonus + Oncall
Posted: 3 days ago
Exeter, Devon
Michael Page Technology - SuperSparx
Salary: Competitive
Posted: 3 days ago