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 24 April 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
24 Apr 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 378 438 422
Rank change year-on-year
+60 -16
Permanent jobs citing CentOS 732 647 638
As % of all permanent IT jobs located in the UK 0.66% 0.54% 0.57%
As % of the Operating Systems category 2.47% 2.03% 2.09%
Number of salaries quoted 635 559 569
Average salary £45,000 £43,000 £41,000
Average salary % change year-on-year
+4.65% +4.87%
90% offered a salary of more than £31,500 £28,975 £27,500
10% offered a salary of more than £65,000 £60,000 £59,250
UK excluding London average salary £40,000 £39,000 £37,500
% change year-on-year
+2.56% +4.00%

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
29663 31830 30499
As % of all permanent IT jobs located in the UK 26.81% 26.51% 27.16%
Number of salaries quoted 24796 26553 25565
Average salary £41,500 £40,000 £40,000
Average salary % change year-on-year
+3.75% -
90% offered a salary of more than £24,500 £24,500 £25,000
10% offered a salary of more than £65,000 £60,000 £65,000
UK excluding London average salary £37,500 £37,000 £37,500
% change year-on-year
+1.35% -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 24 April 2015 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 24 April 2015. 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 +47 703 £45,000 +2.85% 93
London +41 357 £52,000 +4.00% 44
South East +45 148 £42,500 - 16
South West +21 69 £42,500 +13.33% 12
City of London +25 47 £45,000 -11.76% 10
Berkshire -16 47 £33,750 -15.62% 7
Bristol +20 38 £43,750 +34.61% 6
East of England +3 37 £50,000 +25.00% 5
Hampshire +19 34 £45,000 +42.85% 4
Reading 0 34 £36,000 +2.85% 6
Yorkshire -3 33 £40,000 +33.33% 4
North West +24 29 £40,000 - 8
Oxfordshire +38 27 £44,500 -13.17% 3
West Yorkshire +12 26 £40,000 +33.33% 1
Leeds +5 24 £40,000 +33.33% 1
Oxford +20 18 £44,500 -13.17%
Surrey +7 18 £50,000 -16.66% 1
Wales +11 17 £37,000 -38.33%
South Wales +7 17 £37,000 -38.33%
Cambridgeshire +2 17 £47,500 +21.79% 3
East Midlands +11 16 £35,000 +20.68% 3
Cambridge +7 16 £47,500 +23.37% 3
West Midlands -30 14 £33,250 -16.87%
Manchester +6 13 £40,000 - 6
Hertfordshire -10 13 £55,000 +3.77% 2
Portsmouth +19 12 £45,000 -
Woking - 12 £50,000 -
Cardiff +6 11 £40,000 -33.33%
West Sussex - 11 £40,000 -
Bournemouth -8 10 £37,500 - 1

CentOS
Top 30 Related IT Skills

For the 6 months to 24 April 2015, 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 1351 (95.95%) Linux
2 907 (64.42%) Red Hat
3 685 (48.65%) Red Hat Enterprise Linux
4 606 (43.04%) VMware
5 571 (40.55%) MySQL
6 553 (39.28%) Windows
7 512 (36.36%) Bash Shell
7 512 (36.36%) Puppet
8 500 (35.51%) Python
9 488 (34.66%) Apache
10 436 (30.97%) Perl
11 415 (29.47%) Ubuntu
12 390 (27.70%) PHP
13 380 (26.99%) VMware Infrastructure
14 338 (24.01%) DevOps
15 315 (22.37%) Java
16 313 (22.23%) Amazon AWS
17 311 (22.09%) Firewall
18 283 (20.10%) Ruby
19 281 (19.96%) TCP/IP
19 281 (19.96%) DNS
20 280 (19.89%) Tomcat
21 278 (19.74%) Opscode Chef
22 272 (19.32%) Debian
23 253 (17.97%) SQL
24 229 (16.26%) Git (software)
25 225 (15.98%) Microsoft
25 225 (15.98%) Nagios
26 223 (15.84%) SAN
27 221 (15.70%) Agile Software Development

CentOS
Top Related IT Skills by Category

For the 6 months to 24 April 2015, 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
1 488 (34.66%) Apache
2 280 (19.89%) Tomcat
3 207 (14.70%) nginx
4 122 (8.66%) IIS
5 90 (6.39%) MS Exchange
6 60 (4.26%) Confluence
7 58 (4.12%) JBoss
8 48 (3.41%) OpenStack
9 44 (3.13%) Exchange Server 2010
10 40 (2.84%) Elasticsearch
11 34 (2.41%) Apache Solr
11 34 (2.41%) CMS
12 28 (1.99%) Lync
13 27 (1.92%) SharePoint
13 27 (1.92%) Node.js
14 26 (1.85%) WordPress
15 23 (1.63%) Drupal
16 19 (1.35%) MediaWiki
17 16 (1.14%) Moodle
17 16 (1.14%) Cloud Foundry
Applications
1 95 (6.75%) MS Excel
2 9 (0.64%) Photoshop
3 8 (0.57%) Mingle
4 6 (0.43%) MS Office
5 2 (0.14%) Maya
6 1 (0.071%) PowerPivot
Business Applications
1 14 (0.99%) Oracle General Ledger
2 13 (0.92%) Magento
3 12 (0.85%) Dynamics CRM
4 9 (0.64%) SAP Oil and Gas
5 2 (0.14%) RMDS
5 2 (0.14%) Cordys
6 1 (0.071%) Oracle BPM
6 1 (0.071%) SAP Business One
Cloud Services
1 313 (22.23%) Amazon AWS
2 95 (6.75%) Amazon EC2
3 53 (3.76%) Amazon S3
4 47 (3.34%) SaaS
5 44 (3.13%) Cloud Computing
6 37 (2.63%) Office 365
7 34 (2.41%) PaaS
8 29 (2.06%) Microsoft Azure
9 19 (1.35%) GitHub
9 19 (1.35%) Virtual Private Cloud
10 17 (1.21%) IaaS
11 15 (1.07%) Rackspace Cloud
12 14 (0.99%) Google Cloud Platform
13 11 (0.78%) Route 53
13 11 (0.78%) Amazon ELB
14 10 (0.71%) Heroku
14 10 (0.71%) Engine Yard
15 8 (0.57%) AWS CloudFormation
16 7 (0.50%) Amazon CloudWatch
17 6 (0.43%) Amazon SQS
Communications & Networking
1 311 (22.09%) Firewall
2 281 (19.96%) TCP/IP
2 281 (19.96%) DNS
3 223 (15.84%) SAN
4 189 (13.42%) VPN
5 123 (8.74%) WAN
6 120 (8.52%) LDAP
7 118 (8.38%) HTTP
8 115 (8.17%) SSL
9 114 (8.10%) LAN
10 91 (6.46%) IPsec
11 88 (6.25%) DHCP
12 77 (5.47%) NAS
13 75 (5.33%) VLAN
14 73 (5.18%) SMTP
15 63 (4.47%) SNMP
16 61 (4.33%) Network Security
17 58 (4.12%) Internet
18 55 (3.91%) BGP
19 50 (3.55%) iSCSI
Database & Business Intelligence
1 571 (40.55%) MySQL
2 166 (11.79%) SQL Server
3 122 (8.66%) PostgreSQL
4 105 (7.46%) MongoDB
5 89 (6.32%) Relational Database
6 68 (4.83%) NoSQL
7 61 (4.33%) Redis
8 36 (2.56%) Hadoop
9 35 (2.49%) Big Data
10 33 (2.34%) MariaDB
11 31 (2.20%) Amazon DynamoDB
12 30 (2.13%) Amazon RDS
13 29 (2.06%) SQL Server 2005
14 28 (1.99%) SQL Server 2008
15 27 (1.92%) Apache Cassandra
16 22 (1.56%) RDBMS
17 20 (1.42%) Oracle Database
18 17 (1.21%) SQL Server 2012
18 17 (1.21%) Couchbase
19 14 (0.99%) Informix
Development Applications
1 229 (16.26%) Git (software)
2 195 (13.85%) Jenkins
3 125 (8.88%) Subversion
4 92 (6.53%) JIRA
5 56 (3.98%) Maven
6 48 (3.41%) Hudson
7 27 (1.92%) Eclipse
8 23 (1.63%) Ant
8 23 (1.63%) Atlassian Bamboo
9 19 (1.35%) Selenium
10 17 (1.21%) TeamCity
10 17 (1.21%) PHPUnit
11 15 (1.07%) SoapUI
12 14 (0.99%) Mercurial
13 13 (0.92%) Behat
13 13 (0.92%) JUnit
13 13 (0.92%) IntelliJ
14 12 (0.85%) Visual Studio
15 10 (0.71%) Cucumber
16 8 (0.57%) Octopus Deploy
General
1 145 (10.30%) Finance
2 67 (4.76%) Telecoms
3 62 (4.40%) Games
4 45 (3.20%) Retail
5 41 (2.91%) Marketing
6 34 (2.41%) Advertising
7 32 (2.27%) Banking
8 30 (2.13%) Back Office
9 13 (0.92%) Manufacturing
10 12 (0.85%) Online Betting
11 11 (0.78%) Electronics
12 6 (0.43%) Law
12 6 (0.43%) Welsh Language
13 4 (0.28%) Publishing
14 3 (0.21%) Investment Banking
14 3 (0.21%) Financial Institution
14 3 (0.21%) Spanish Language
15 2 (0.14%) Aerospace
16 1 (0.071%) Legal
16 1 (0.071%) Pharmaceutical
Job Titles
1 530 (37.64%) Administrator
2 523 (37.14%) Systems Administrator
3 387 (27.49%) Linux Administrator
4 367 (26.07%) Linux Systems Administrator
5 183 (13.00%) DevOps Engineer
6 163 (11.58%) Linux Engineer
7 153 (10.87%) Systems Engineer
8 123 (8.74%) Developer
9 122 (8.66%) Support Engineer
10 85 (6.04%) Infrastructure Engineer
11 74 (5.26%) Analyst
12 71 (5.04%) Linux DevOps Engineer
13 53 (3.76%) Senior Systems Administrator
14 48 (3.41%) Linux Systems Engineer
15 46 (3.27%) PHP Developer
16 39 (2.77%) Java Developer
16 39 (2.77%) Senior Linux Administrator
17 37 (2.63%) Senior DevOps Engineer
17 37 (2.63%) Architect
18 36 (2.56%) Linux Support
Libraries, Frameworks & Software Standards
1 192 (13.64%) Web Services
2 164 (11.65%) LAMP
3 119 (8.45%) HTML
4 91 (6.46%) CSS
5 55 (3.91%) RESTful
6 54 (3.84%) .NET
7 50 (3.55%) jQuery
7 50 (3.55%) RabbitMQ
8 40 (2.84%) XML
9 39 (2.77%) HTML5
10 37 (2.63%) Memcached
11 31 (2.20%) Ajax
12 29 (2.06%) REST
13 28 (1.99%) ASP.NET
14 26 (1.85%) Servlets
14 26 (1.85%) FIX Protocol
14 26 (1.85%) Symfony
15 24 (1.70%) J2EE
16 23 (1.63%) Spring
16 23 (1.63%) CSS3
Miscellaneous
1 143 (10.16%) Open Source
2 102 (7.24%) Clustering
3 91 (6.46%) Analytical Skills
4 59 (4.19%) Replication
5 55 (3.91%) Computer Science
6 39 (2.77%) Wiki
7 32 (2.27%) Derivative
8 29 (2.06%) Eurex
9 28 (1.99%) Streaming Video
10 25 (1.78%) Public Cloud
10 25 (1.78%) Mobile App
11 22 (1.56%) Private Cloud
11 22 (1.56%) iPhone
12 20 (1.42%) Management Information System
12 20 (1.42%) Client/Server
13 19 (1.35%) CESG
13 19 (1.35%) User Experience
14 18 (1.28%) E-Learning
15 16 (1.14%) Blackberry
16 15 (1.07%) Over-the-Top Content
Operating Systems
1 1351 (95.95%) Linux
2 685 (48.65%) Red Hat Enterprise Linux
3 553 (39.28%) Windows
4 415 (29.47%) Ubuntu
5 272 (19.32%) Debian
6 187 (13.28%) Windows Server 2008
7 177 (12.57%) UNIX
8 115 (8.17%) Fedora
9 85 (6.04%) Solaris
10 82 (5.82%) Windows Server 2003
11 68 (4.83%) Windows Server 2012
12 58 (4.12%) Windows 7
13 52 (3.69%) SUSE
14 50 (3.55%) Android
15 44 (3.13%) Oracle Linux
15 44 (3.13%) Mac OS X
16 30 (2.13%) AIX
16 30 (2.13%) Apple iOS
17 16 (1.14%) Windows Phone
18 12 (0.85%) Amazon Linux
Processes & Methodologies
1 338 (24.01%) DevOps
2 221 (15.70%) Agile Software Development
3 201 (14.28%) Configuration Management
4 167 (11.86%) E-Commerce
5 157 (11.15%) Continuous Integration
6 132 (9.38%) Load Balancing
7 126 (8.95%) ITIL
8 80 (5.68%) Performance Tuning
9 75 (5.33%) Scrum
10 68 (4.83%) Time Management
11 64 (4.55%) Disaster Recovery
12 61 (4.33%) Mentoring
13 53 (3.76%) Software Engineering
14 49 (3.48%) TDD
15 48 (3.41%) Migration
16 47 (3.34%) Service Delivery
17 43 (3.05%) OO
18 41 (2.91%) Build Automation
19 35 (2.49%) Change Management
20 34 (2.41%) OOP
Programming Languages
1 512 (36.36%) Bash Shell
2 500 (35.51%) Python
3 436 (30.97%) Perl
4 390 (27.70%) PHP
5 315 (22.37%) Java
6 283 (20.10%) Ruby
7 253 (17.97%) SQL
8 185 (13.14%) Shell Script
9 113 (8.03%) JavaScript
10 60 (4.26%) C++
11 53 (3.76%) C#
12 45 (3.20%) PowerShell
13 39 (2.77%) C
14 33 (2.34%) PHP5
15 27 (1.92%) Korn
16 22 (1.56%) T-SQL
17 17 (1.21%) Scala
18 13 (0.92%) Tcl
19 12 (0.85%) sed
19 12 (0.85%) Objective-C
Qualifications
1 102 (7.24%) Degree
2 68 (4.83%) Cisco Certification
3 59 (4.19%) Security Cleared
4 53 (3.76%) VMware Certified Professional (VCP)
5 49 (3.48%) RHCE
6 45 (3.20%) CCNP
7 38 (2.70%) SC Cleared
8 37 (2.63%) Microsoft Certification
9 33 (2.34%) MCSE
10 30 (2.13%) RHCSA
11 26 (1.85%) DV Cleared
11 26 (1.85%) CCNA
12 11 (0.78%) LPIC
13 10 (0.71%) MCTS
13 10 (0.71%) MCSA
14 8 (0.57%) MCSD
14 8 (0.57%) A+ Certification
14 8 (0.57%) PMI Certification
15 7 (0.50%) MCP
15 7 (0.50%) MCITP
Quality Assurance & Compliance
1 50 (3.55%) SLA
2 42 (2.98%) QA
3 21 (1.49%) ISO/IEC 27001
4 4 (0.28%) PCI DSS
5 3 (0.21%) ISO 9001
System Software
1 380 (26.99%) VMware Infrastructure
2 153 (10.87%) Active Directory
3 137 (9.73%) vSphere
4 69 (4.90%) NFS
5 68 (4.83%) Hyper-V
6 66 (4.69%) XenServer
7 62 (4.40%) Samba
8 59 (4.19%) Varnish
9 53 (3.76%) VMware ESXi
10 52 (3.69%) VMware ESX
11 49 (3.48%) Postfix
12 46 (3.27%) Xen
13 44 (3.13%) KVM
14 38 (2.70%) iptables
15 35 (2.49%) vCloud
16 34 (2.41%) Docker
17 26 (1.85%) Squid
18 24 (1.70%) VirtualBox
19 17 (1.21%) Terminal Services
20 9 (0.64%) XenDesktop
Systems Management
1 512 (36.36%) Puppet
2 278 (19.74%) Opscode Chef
3 225 (15.98%) Nagios
4 104 (7.39%) Ansible
5 90 (6.39%) ZABBIX
6 40 (2.84%) Cacti
7 38 (2.70%) Vagrant
8 37 (2.63%) Salt
9 36 (2.56%) SELinux
9 36 (2.56%) logstash
10 32 (2.27%) WSUS
11 31 (2.20%) Icinga
12 29 (2.06%) Cobbler
13 24 (1.70%) HAProxy
13 24 (1.70%) cPanel
14 19 (1.35%) Plesk
15 18 (1.28%) Opsview
16 16 (1.14%) Munin
17 15 (1.07%) Zenoss
17 15 (1.07%) Red Hat Spacewalk
Vendors
1 907 (64.42%) Red Hat
2 606 (43.04%) VMware
3 225 (15.98%) Microsoft
4 202 (14.35%) Cisco
5 136 (9.66%) Oracle
6 104 (7.39%) HP
7 93 (6.61%) Citrix
8 81 (5.75%) Juniper
9 38 (2.70%) Zend
10 34 (2.41%) Rackspace
11 33 (2.34%) Splunk
12 32 (2.27%) Dell
12 32 (2.27%) IBM
13 27 (1.92%) hybris
13 27 (1.92%) Percona
14 25 (1.78%) F5
14 25 (1.78%) NetApp
15 24 (1.70%) NYFIX
15 24 (1.70%) Patsystems
16 23 (1.63%) GL TRADE
London
Spargonet Consulting Plc
Salary: £60000 - £70000 per annum, Benefits Excellent Benefits
Posted: 2 hours ago
London
Zorba Consulting Limited
Salary: £40k - 60k per year + bonus + benefits
Posted: 2 hours ago
Salford, Lancashire
Foresight Recruitment Solutions Ltd
Salary: £28000 - £35000 per annum + benefits incl health
Posted: 5 hours ago
Camberley, Surrey
Peopleworks
Salary: From £35,000 to £40,000 per annum £35,000 to £40,000 Negotiable + 10%
Posted: 9 hours ago
London
Burns Sheehan
Salary: £50000 - £65000 per annum + Excelent Benefits
Posted: Yesterday
City, London
IT Rockstars Recruitment
Salary: Compelling salary + Bonus
Posted: Yesterday
London
Austin Fraser
Salary: £40000.00 - £55000.00 per annum + Great Bens
Posted: 2 days ago
Harrogate, North Yorkshire
Senitor Associates
Salary: £35000 per annum
Posted: 2 days ago
London
Austin Fraser
Salary: £50000.00 - £60000.00 per annum + Bens
Posted: 2 days ago
Farnborough, Hampshire
Austin Fraser
Salary: £30000 - £40000.00 per annum + Excellent Benefits
Posted: 2 days ago
City, London
TLP Consultancy Ltd.
Salary: £30000 - £35000 per annum
Posted: 2 days ago
London
Opus Resourcing Ltd
Salary: £50000 - £70000 per annum + Bens + Bonus
Posted: 2 days ago
London
HAYS INFORMATION TECHNOLOGY
Salary: £35000.00 - £42000.00 per annum
Posted: 2 days ago
Borehamwood, Hertfordshire
Oscar Associates (UK) Ltd
Salary: £25000 - £35000 per annum + Benifits
Posted: 2 days ago
City, London
Connectus
Salary: £30000 - £40000 per annum
Posted: 2 days ago
Bristol, Avon
ISL
Salary: £35000 - £40000 per annum
Posted: 2 days ago
London
HAYS INFORMATION TECHNOLOGY
Salary: £60000.00 - £68000.00 per annum
Posted: 2 days ago
London
HAYS INFORMATION TECHNOLOGY
Salary: £50000.00 - £55000.00 per annum
Posted: 2 days ago
Reading, Berkshire
360 Resourcing Solutions
Salary: £24k - 30k per year + excellent bens
Posted: 2 days ago
Leeds, West Yorkshire
The Bridge Ltd
Salary: Unspecified £Excellent + Bonus + Good benefits
Posted: 2 days ago