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 22 December 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
22 Dec 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 395 386 395
Rank change year-on-year
-9 +9
Permanent jobs citing CentOS 718 720 653
As % of all permanent IT jobs located in the UK 0.65% 0.66% 0.57%
As % of the Operating Systems category 2.35% 2.41% 2.04%
Number of salaries quoted 661 664 617
Average salary £45,000 £45,000 £42,500
Average salary % change year-on-year
- +5.88%
90% offered a salary of more than £30,000 £32,500 £30,000
10% offered a salary of more than £60,000 £61,500 £57,700
UK excluding London average salary £40,000 £40,000 £37,000
% change year-on-year
- +8.10%

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
30559 29884 32065
As % of all permanent IT jobs located in the UK 27.49% 27.42% 27.94%
Number of salaries quoted 25580 24804 27672
Average salary £40,000 £40,000 £40,000
90% offered a salary of more than £24,000 £25,000 £25,000
10% offered a salary of more than £65,000 £60,000 £65,000
UK excluding London average salary £37,500 £37,500 £37,500

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 22 December 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 22 December 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 -4 693 £45,000 - 90
London -34 382 £47,500 - 27
South East +3 172 £42,500 +6.25% 26
City of London +7 55 £47,000 +4.44% 5
Surrey +5 46 £42,500 -16.25% 3
Berkshire +4 45 £42,500 -5.55% 8
Hampshire -11 45 £45,000 +18.42% 9
South West +36 41 £37,500 -6.25% 15
Yorkshire -15 37 £40,000 +23.07% 6
West Yorkshire -3 28 £30,250 -6.92% 2
Leeds +6 27 £30,250 -15.17% 2
West Midlands -13 23 £32,500 -23.52% 1
Oxfordshire +7 17 £43,000 +7.50% 2
East of England -44 17 £50,000 -13.04% 5
Guildford 0 16 £37,500 +25.00%
Bristol - 16 £25,000 - 1
Havant +14 15 £35,000 -6.66% 1
Oxford +16 14 £43,000 +7.50% 2
North West -12 14 £35,000 -12.50% 9
South Wales +6 13 £34,000 -17.07% 2
Wales +4 13 £34,000 -17.07% 2
Reading -10 13 £35,000 -7.28% 2
Maidenhead +16 12 £45,250 -9.50% 4
Kent -1 12 £27,500 -26.66%
Slough -18 12 £52,500 +12.90% 2
Cambridgeshire +6 11 £50,000 +29.87% 3
Coventry +4 11 £32,500 -
Leatherhead +2 11 £55,000 +18.27%
Manchester -30 11 £33,750 -18.67% 6
Wiltshire - 9 £52,500 - 4

CentOS
Top 30 Related IT Skills

For the 6 months to 22 December 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 1434 (96.37%) Linux
2 994 (66.80%) Red Hat
3 668 (44.89%) Red Hat Enterprise Linux
4 600 (40.32%) Puppet
5 563 (37.84%) MySQL
6 558 (37.50%) Windows
7 553 (37.16%) Python
8 544 (36.56%) VMware
9 513 (34.48%) Perl
10 501 (33.67%) Bash Shell
11 451 (30.31%) Apache
12 446 (29.97%) PHP
13 407 (27.35%) Ubuntu
14 326 (21.91%) DevOps
15 324 (21.77%) VMware Infrastructure
16 305 (20.50%) Git (software)
16 305 (20.50%) Opscode Chef
17 295 (19.83%) Debian
18 291 (19.56%) Ruby
18 291 (19.56%) TCP/IP
19 287 (19.29%) SQL
20 283 (19.02%) Nagios
21 265 (17.81%) Java
22 253 (17.00%) Tomcat
23 250 (16.80%) DNS
24 248 (16.67%) Agile Software Development
25 239 (16.06%) UNIX
26 230 (15.46%) Firewall
27 211 (14.18%) LAMP
28 201 (13.51%) SAN

CentOS
Top Related IT Skills by Category

For the 6 months to 22 December 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
1 451 (30.31%) Apache
2 253 (17.00%) Tomcat
3 182 (12.23%) nginx
4 118 (7.93%) IIS
5 75 (5.04%) MS Exchange
6 68 (4.57%) JBoss
7 50 (3.36%) Elasticsearch
8 47 (3.16%) OpenStack
9 39 (2.62%) WordPress
10 35 (2.35%) WebLogic
11 34 (2.28%) Drupal
11 34 (2.28%) Confluence
11 34 (2.28%) Node.js
12 32 (2.15%) Exchange Server 2010
13 27 (1.81%) Apache Solr
14 25 (1.68%) Lync
15 24 (1.61%) CMS
16 23 (1.55%) K2 blackpearl
17 21 (1.41%) Moodle
18 19 (1.28%) WebSphere
Applications
1 77 (5.17%) MS Excel
2 10 (0.67%) Photoshop
3 5 (0.34%) Mingle
4 4 (0.27%) MS Office
5 2 (0.13%) MS Visio
6 1 (0.067%) Maya
6 1 (0.067%) 3ds Max
Business Applications
1 22 (1.48%) Magento
2 12 (0.81%) Oracle EBS
3 9 (0.60%) Dynamics CRM
4 7 (0.47%) SAP Oil and Gas
5 5 (0.34%) Oracle General Ledger
6 2 (0.13%) Oracle BPM
7 1 (0.067%) Shopify
7 1 (0.067%) Dynamics NAV
7 1 (0.067%) Google Analytics
Cloud Services
1 197 (13.24%) Amazon AWS
2 64 (4.30%) Amazon EC2
3 63 (4.23%) SaaS
4 38 (2.55%) Amazon S3
5 33 (2.22%) Cloud Computing
6 26 (1.75%) Rackspace Cloud
7 21 (1.41%) Amazon ELB
8 17 (1.14%) IaaS
8 17 (1.14%) PaaS
9 13 (0.87%) Microsoft Azure
10 12 (0.81%) GitHub
11 11 (0.74%) Office 365
12 7 (0.47%) Route 53
12 7 (0.47%) Amazon SQS
12 7 (0.47%) SoftLayer
13 4 (0.27%) Google Cloud Platform
14 2 (0.13%) Amazon EMR
15 1 (0.067%) Google Apps
15 1 (0.067%) CloudFront
15 1 (0.067%) Heroku
Communications & Networking
1 291 (19.56%) TCP/IP
2 250 (16.80%) DNS
3 230 (15.46%) Firewall
4 201 (13.51%) SAN
5 150 (10.08%) VPN
6 145 (9.74%) HTTP
7 139 (9.34%) SSL
8 123 (8.27%) LDAP
9 120 (8.06%) LAN
10 110 (7.39%) WAN
11 109 (7.33%) DHCP
12 89 (5.98%) NAS
13 85 (5.71%) IPsec
14 84 (5.65%) SSH
15 65 (4.37%) SMTP
16 59 (3.97%) SNMP
17 57 (3.83%) Internet
17 57 (3.83%) VLAN
18 56 (3.76%) BGP
19 55 (3.70%) Cisco ASA
Database & Business Intelligence
1 563 (37.84%) MySQL
2 147 (9.88%) SQL Server
3 119 (8.00%) MongoDB
4 103 (6.92%) PostgreSQL
5 92 (6.18%) NoSQL
6 81 (5.44%) Redis
7 60 (4.03%) Hadoop
7 60 (4.03%) Big Data
8 53 (3.56%) Relational Database
9 45 (3.02%) Oracle Database
10 43 (2.89%) SQL Server 2005
11 42 (2.82%) SQL Server 2008
12 40 (2.69%) Apache Cassandra
13 34 (2.28%) CouchDB
13 34 (2.28%) MariaDB
14 33 (2.22%) SQL Server 2012
15 24 (1.61%) SQL Server Integration Services
16 19 (1.28%) DB2
17 18 (1.21%) Amazon DynamoDB
18 14 (0.94%) Riak
Development Applications
1 305 (20.50%) Git (software)
2 193 (12.97%) Jenkins
3 153 (10.28%) Subversion
4 67 (4.50%) JIRA
5 44 (2.96%) Hudson
6 38 (2.55%) Maven
7 31 (2.08%) Mercurial
8 22 (1.48%) Atlassian Bamboo
9 16 (1.08%) Behat
10 13 (0.87%) Visual Studio
11 12 (0.81%) Cucumber
11 12 (0.81%) PHPUnit
12 11 (0.74%) TeamCity
13 10 (0.67%) Selenium
14 9 (0.60%) JUnit
15 8 (0.54%) Appcelerator Titanium
15 8 (0.54%) TestLink
16 7 (0.47%) Fiddler
17 6 (0.40%) Ant
17 6 (0.40%) Yeoman
General
1 157 (10.55%) Finance
2 54 (3.63%) Marketing
3 52 (3.49%) Games
4 43 (2.89%) Telecoms
5 36 (2.42%) Retail
6 35 (2.35%) Back Office
7 33 (2.22%) Banking
8 31 (2.08%) Advertising
9 19 (1.28%) Publishing
10 17 (1.14%) Manufacturing
11 13 (0.87%) Welsh Language
12 12 (0.81%) Legal
13 9 (0.60%) Electronics
13 9 (0.60%) Law
14 8 (0.54%) Pharmaceutical
15 6 (0.40%) Financial Institution
16 4 (0.27%) Aerospace
16 4 (0.27%) Investment Banking
17 2 (0.13%) Online Betting
17 2 (0.13%) French Language
Job Titles
1 557 (37.43%) Administrator
2 525 (35.28%) Systems Administrator
3 427 (28.70%) Linux Administrator
4 374 (25.13%) Linux Systems Administrator
5 180 (12.10%) Linux Engineer
6 165 (11.09%) Developer
7 127 (8.53%) DevOps Engineer
8 86 (5.78%) Support Engineer
8 86 (5.78%) Senior Systems Administrator
9 82 (5.51%) Systems Engineer
10 81 (5.44%) Analyst
11 78 (5.24%) Infrastructure Engineer
12 74 (4.97%) Linux DevOps Engineer
13 73 (4.91%) PHP Developer
14 63 (4.23%) Senior Linux Administrator
15 55 (3.70%) Senior Linux Systems Administrator
16 49 (3.29%) UNIX Administrator
17 41 (2.76%) Web Developer
18 38 (2.55%) Linux Support
19 37 (2.49%) Network Engineer
Libraries, Frameworks & Software Standards
1 211 (14.18%) LAMP
2 191 (12.84%) Web Services
3 158 (10.62%) HTML
4 139 (9.34%) CSS
5 99 (6.65%) jQuery
6 67 (4.50%) .NET
7 66 (4.44%) HTML5
8 64 (4.30%) XML
9 49 (3.29%) Memcached
10 47 (3.16%) REST
11 46 (3.09%) SOAP
12 41 (2.76%) ASP.NET
13 40 (2.69%) Symfony
14 39 (2.62%) RESTful
14 39 (2.62%) RabbitMQ
15 33 (2.22%) ASP.NET MVC
16 30 (2.02%) MSMQ
17 29 (1.95%) XHTML
17 29 (1.95%) ASP.NET Web API
18 28 (1.88%) ASP.NET MVC 4
Miscellaneous
1 169 (11.36%) Open Source
2 75 (5.04%) Clustering
3 72 (4.84%) Analytical Skills
4 54 (3.63%) Computer Science
5 47 (3.16%) Replication
6 29 (1.95%) Hedge funds
7 26 (1.75%) Derivative
8 25 (1.68%) E-Learning
9 21 (1.41%) VLE
9 21 (1.41%) Mathematics
9 21 (1.41%) Mobile App
10 18 (1.21%) Management Information System
11 17 (1.14%) Digital Media
11 17 (1.14%) User Experience
11 17 (1.14%) Learning Management System
12 16 (1.08%) PKI
13 15 (1.01%) DTV
13 15 (1.01%) Social Media
14 12 (0.81%) Enterprise Software
15 11 (0.74%) Data Extraction
Operating Systems
1 1434 (96.37%) Linux
2 668 (44.89%) Red Hat Enterprise Linux
3 558 (37.50%) Windows
4 407 (27.35%) Ubuntu
5 295 (19.83%) Debian
6 239 (16.06%) UNIX
7 199 (13.37%) Windows Server 2008
8 105 (7.06%) Fedora
9 103 (6.92%) Windows Server 2003
10 92 (6.18%) Solaris
11 80 (5.38%) SUSE
12 68 (4.57%) Windows Server 2012
13 44 (2.96%) Windows 7
14 43 (2.89%) Oracle Linux
15 38 (2.55%) Mac OS X
16 37 (2.49%) Android
17 34 (2.28%) AIX
18 30 (2.02%) HPUX
19 29 (1.95%) Apple iOS
20 14 (0.94%) Amazon Linux
Processes & Methodologies
1 326 (21.91%) DevOps
2 248 (16.67%) Agile Software Development
3 184 (12.37%) ITIL
4 152 (10.22%) Configuration Management
5 129 (8.67%) E-Commerce
6 125 (8.40%) Load Balancing
7 113 (7.59%) Continuous Integration
8 77 (5.17%) Performance Tuning
8 77 (5.17%) MVC
9 73 (4.91%) Scrum
10 66 (4.44%) Mentoring
11 61 (4.10%) OO
12 54 (3.63%) Service Delivery
12 54 (3.63%) Software Engineering
13 53 (3.56%) Service Management
13 53 (3.56%) Time Management
14 48 (3.23%) Project Management
14 48 (3.23%) TDD
15 39 (2.62%) OOP
16 38 (2.55%) Web Development
Programming Languages
1 553 (37.16%) Python
2 513 (34.48%) Perl
3 501 (33.67%) Bash Shell
4 446 (29.97%) PHP
5 291 (19.56%) Ruby
6 287 (19.29%) SQL
7 265 (17.81%) Java
8 149 (10.01%) Shell Script
9 113 (7.59%) JavaScript
10 88 (5.91%) PowerShell
11 66 (4.44%) PHP5
12 49 (3.29%) C#
12 49 (3.29%) C++
13 48 (3.23%) T-SQL
14 39 (2.62%) C
15 28 (1.88%) sed
16 22 (1.48%) AWK
17 19 (1.28%) Scala
18 12 (0.81%) Korn
19 7 (0.47%) VBScript
Qualifications
1 100 (6.72%) Degree
2 86 (5.78%) Cisco Certification
3 60 (4.03%) VMware Certified Professional (VCP)
4 59 (3.97%) Security Cleared
5 58 (3.90%) RHCE
6 56 (3.76%) CCNP
7 40 (2.69%) CCNA
8 31 (2.08%) Microsoft Certification
8 31 (2.08%) SC Cleared
9 28 (1.88%) MCSE
10 26 (1.75%) RHCSA
11 24 (1.61%) DV Cleared
12 16 (1.08%) MCP
13 14 (0.94%) MCITP
14 10 (0.67%) OSCP
14 10 (0.67%) OSCE
14 10 (0.67%) PMI Certification
14 10 (0.67%) CEH
15 9 (0.60%) MCSA
16 8 (0.54%) PMP
Quality Assurance & Compliance
1 60 (4.03%) SLA
2 36 (2.42%) QA
3 35 (2.35%) ISO/IEC 27001
4 24 (1.61%) PCI DSS
5 14 (0.94%) ISO 9001
5 14 (0.94%) ISO 14001
6 2 (0.13%) Sarbanes-Oxley
7 1 (0.067%) HIPAA
7 1 (0.067%) WAI
System Software
1 324 (21.77%) VMware Infrastructure
2 171 (11.49%) vSphere
3 133 (8.94%) Active Directory
4 66 (4.44%) KVM
5 63 (4.23%) Samba
6 61 (4.10%) Xen
7 57 (3.83%) vCloud
8 55 (3.70%) Varnish
9 54 (3.63%) NFS
10 53 (3.56%) VMware ESXi
10 53 (3.56%) XenServer
11 35 (2.35%) Docker
12 29 (1.95%) Hyper-V
13 22 (1.48%) VMware ESX
13 22 (1.48%) LXC
14 21 (1.41%) Postfix
15 19 (1.28%) Squid
16 18 (1.21%) Veritas Cluster Server
17 13 (0.87%) Shibboleth
18 12 (0.81%) Firmware
Systems Management
1 600 (40.32%) Puppet
2 305 (20.50%) Opscode Chef
3 283 (19.02%) Nagios
4 135 (9.07%) ZABBIX
5 87 (5.85%) Cacti
6 71 (4.77%) Ansible
7 69 (4.64%) Salt
8 58 (3.90%) Vagrant
9 37 (2.49%) CFEngine
10 35 (2.35%) ITRS Geneos
11 34 (2.28%) Graphite
12 33 (2.22%) logstash
13 28 (1.88%) Zenoss
14 26 (1.75%) WSUS
15 24 (1.61%) HAProxy
16 22 (1.48%) Opsview
16 22 (1.48%) Icinga
17 21 (1.41%) SCOM
18 20 (1.34%) SCCM
19 19 (1.28%) SELinux
Vendors
1 994 (66.80%) Red Hat
2 544 (36.56%) VMware
3 194 (13.04%) Cisco
3 194 (13.04%) Microsoft
4 167 (11.22%) Oracle
5 112 (7.53%) HP
6 91 (6.12%) Citrix
7 79 (5.31%) Zend
8 71 (4.77%) Juniper
9 65 (4.37%) Rackspace
10 59 (3.97%) IBM
11 58 (3.90%) NetApp
12 55 (3.70%) EMC
13 50 (3.36%) Dell
14 45 (3.02%) F5
15 39 (2.62%) Perforce
16 31 (2.08%) Percona
17 30 (2.02%) Reuters
18 28 (1.88%) Bloomberg
18 28 (1.88%) Symantec
Maidenhead, Berkshire
Fenwick Ryan
Salary: £40000 - £45000 per annum + Bonus+Bens+Stock Options
Posted: 8 hours ago
Yorkshire
set2recruit
Salary: £19000 - £24000 Per Annum
Posted: 11 hours ago
Staines, Middlesex
Informatiq Consulting
Salary: £38000 - £50000 per annum + Bens
Posted: 11 hours ago
London
Verticality Ltd
Salary: £36000 - £38000 per annum
Posted: 16 hours ago
Central London / West End
Verticality Ltd
Salary: £35000 - £38000 per annum
Posted: 16 hours ago
Slough, Berkshire
Digitech Resourcing Ltd
Salary: Up to £42,000 per annum + Benefits
Posted: 16 hours ago
Harrogate, North Yorkshire
Senitor Associates
Salary: £40000 per annum
Posted: 17 hours ago
Tewkesbury, Gloucestershire
Big Red Recruitment
Salary: £20 - £45 per annum
Posted: 17 hours ago
London
Spargonet Consulting Plc
Salary: £55000 - £65000 per annum
Posted: Yesterday
Hampshire
Peopleworks
Salary: From £50,000 to £55,000 per annum £50,000 to £55,000 + Bonus (10%) Neg
Posted: 2 days ago
Camberley, Surrey
Peopleworks
Salary: From £35,000 to £40,000 per annum £35,000 to £40,000 Negotiable + 10%
Posted: 2 days ago
London
Parallel Consulting
Posted: 3 days ago
Slough, Berkshire
Digitech Resourcing Ltd
Salary: Up to £42,000 per annum
Posted: 3 days ago
South West London
Digitech Resourcing Ltd
Salary: From £50,000 to £70,000 per annum
Posted: 3 days ago
Swindon, Wiltshire
Redrock Consulting Ltd
Salary: £45000 - £45001 per annum + 5% on call bonus + benefits
Posted: 3 days ago
Hayes, Middlesex
Rackspace
Salary: Competitive
Posted: 4 days ago
Harrogate, North Yorkshire
4it Recruitment Ltd
Salary: Up to £45,000 per annum
Posted: 4 days ago
Aylesbury, Buckinghamshire
TFM Networks
Salary: Competitive package
Posted: 4 days ago
Maidenhead, Berkshire
Redrock Consulting Ltd
Salary: £35000 - £50000 per annum + Excellent career development
Posted: 4 days ago
Cheshire
Experis Ltd
Salary: £31805.72 - £35781.44 per annum + Benefits
Posted: 4 days ago