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 29 July 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
29 Jul 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 399 401 423
Rank change year-on-year
+2 +22
Permanent jobs citing CentOS 715 732 614
As % of all permanent IT jobs located in the UK 0.65% 0.62% 0.56%
As % of the Operating Systems category 2.47% 2.34% 2.06%
Number of salaries quoted 622 642 556
Average salary £47,500 £45,000 £45,000
Average salary % change year-on-year
+5.55% -
90% offered a salary of more than £30,250 £30,000 £30,000
10% offered a salary of more than £65,000 £60,000 £62,500
UK excluding London average salary £42,500 £40,000 £38,500
% change year-on-year
+6.25% +3.89%

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
28891 31343 29769
As % of all permanent IT jobs located in the UK 26.34% 26.74% 27.35%
Number of salaries quoted 24254 26198 25210
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 £25,000 £25,000
10% offered a salary of more than £65,000 £62,500 £65,000
UK excluding London average salary £37,500 £36,500 £37,500
% change year-on-year
+2.73% -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 29 July 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 29 July 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 +14 701 £47,500 +5.55% 115
London -2 343 £55,000 +10.00% 54
South East +48 164 £42,500 - 18
Berkshire +49 80 £42,500 -0.58% 7
Reading +56 67 £42,500 -0.58% 7
City of London +24 55 £55,000 +22.22% 9
South West 0 54 £37,500 - 10
North West +29 48 £37,500 -6.25% 10
Hampshire +6 44 £42,500 +6.25% 3
Yorkshire +5 37 £40,000 +37.93% 6
East of England -19 34 £47,000 +4.44% 9
Bristol -12 29 £37,500 - 3
Manchester +18 28 £37,500 -6.25% 8
Surrey +10 21 £50,000 - 6
West Yorkshire +10 18 £47,500 +92.38% 4
Cambridgeshire +1 18 £42,500 - 7
Kent +14 17 £65,000 +30.00% 1
Cambridge +13 17 £42,500 - 6
Leeds +7 17 £47,500 +92.38% 3
Hertfordshire -12 15 £55,000 +3.77% 2
Southampton +14 14 £32,500 +35.41% 1
Maidenhead +13 12 £42,500 -26.08%
Wales -9 12 £39,500 +12.85%
Farnborough -14 12 £50,000 +5.26%
West Midlands -15 12 £42,500 +30.76% 4
Oxfordshire +18 11 £40,000 -5.88% 1
North Yorkshire +2 11 £36,250 +81.25% 2
Leatherhead +4 10 £55,000 -
Lancashire +1 10 £32,500 -20.24%
Wiltshire 0 10 £47,500 +5.55% 2

CentOS
Top 30 Related IT Skills

For the 6 months to 29 July 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 1369 (95.33%) Linux
2 854 (59.47%) Red Hat
3 604 (42.06%) Puppet
4 590 (41.09%) Red Hat Enterprise Linux
5 561 (39.07%) Python
6 548 (38.16%) MySQL
6 548 (38.16%) Bash Shell
7 546 (38.02%) Apache
8 532 (37.05%) VMware
9 530 (36.91%) Windows
10 443 (30.85%) Ubuntu
11 440 (30.64%) DevOps
12 412 (28.69%) Perl
13 377 (26.25%) Amazon AWS
14 366 (25.49%) PHP
15 355 (24.72%) Java
16 347 (24.16%) VMware Infrastructure
17 338 (23.54%) Opscode Chef
18 337 (23.47%) DNS
19 330 (22.98%) Firewall
20 307 (21.38%) Ruby
21 302 (21.03%) Agile Software Development
22 289 (20.13%) TCP/IP
23 269 (18.73%) SQL
24 266 (18.52%) Debian
25 263 (18.31%) Tomcat
26 262 (18.25%) Git (software)
27 250 (17.41%) Configuration Management
28 237 (16.50%) Jenkins
29 232 (16.16%) nginx

CentOS
Top Related IT Skills by Category

For the 6 months to 29 July 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
1 546 (38.02%) Apache
2 263 (18.31%) Tomcat
3 232 (16.16%) nginx
4 101 (7.03%) IIS
5 89 (6.20%) OpenStack
6 74 (5.15%) Confluence
7 72 (5.01%) JBoss
8 60 (4.18%) Elasticsearch
9 52 (3.62%) MS Exchange
10 44 (3.06%) CMS
10 44 (3.06%) Drupal
11 32 (2.23%) WordPress
12 29 (2.02%) SharePoint
13 28 (1.95%) MediaWiki
14 27 (1.88%) Node.js
15 23 (1.60%) Oracle HTTP Server
16 21 (1.46%) Exchange Server 2010
16 21 (1.46%) Apache Solr
17 18 (1.25%) Jetty
18 17 (1.18%) GlassFish
Applications
1 69 (4.81%) MS Excel
2 12 (0.84%) MS Office
3 7 (0.49%) Mingle
4 5 (0.35%) Photoshop
5 4 (0.28%) MS Visio
6 2 (0.14%) Maya
7 1 (0.070%) MS PowerPoint
7 1 (0.070%) PowerPivot
Business Applications
1 35 (2.44%) Magento
2 12 (0.84%) SAP Oil and Gas
3 6 (0.42%) RMDS
4 5 (0.35%) Oracle General Ledger
5 2 (0.14%) Cordys
5 2 (0.14%) Dynamics CRM
5 2 (0.14%) Shopify
6 1 (0.070%) Oracle BPM
6 1 (0.070%) SAP Business One
Cloud Services
1 377 (26.25%) Amazon AWS
2 119 (8.29%) Amazon EC2
3 52 (3.62%) Amazon S3
4 49 (3.41%) Microsoft Azure
5 41 (2.86%) SaaS
6 39 (2.72%) Route 53
7 35 (2.44%) PaaS
8 33 (2.30%) Amazon ELB
9 32 (2.23%) Cloud Computing
10 26 (1.81%) Office 365
11 14 (0.97%) GitHub
12 12 (0.84%) Responsys
12 12 (0.84%) Virtual Private Cloud
12 12 (0.84%) Taleo
13 11 (0.77%) IaaS
14 10 (0.70%) AWS CloudFormation
14 10 (0.70%) Amazon SQS
15 9 (0.63%) Rackspace Cloud
15 9 (0.63%) Amazon CloudWatch
16 7 (0.49%) Google Cloud Platform
Communications & Networking
1 337 (23.47%) DNS
2 330 (22.98%) Firewall
3 289 (20.13%) TCP/IP
4 187 (13.02%) SAN
5 175 (12.19%) VPN
6 120 (8.36%) DHCP
7 113 (7.87%) SSL
8 110 (7.66%) LDAP
9 109 (7.59%) HTTP
10 100 (6.96%) WAN
11 89 (6.20%) IPsec
12 86 (5.99%) LAN
13 85 (5.92%) Network Security
14 81 (5.64%) VLAN
15 66 (4.60%) NAS
16 59 (4.11%) SMTP
17 58 (4.04%) BGP
18 55 (3.83%) SSH
19 52 (3.62%) Internet
20 49 (3.41%) SNMP
Database & Business Intelligence
1 548 (38.16%) MySQL
2 137 (9.54%) SQL Server
3 125 (8.70%) MongoDB
4 113 (7.87%) PostgreSQL
5 88 (6.13%) NoSQL
6 74 (5.15%) Redis
7 65 (4.53%) Relational Database
8 51 (3.55%) Apache Cassandra
9 49 (3.41%) Hadoop
10 43 (2.99%) Big Data
11 42 (2.92%) Couchbase
12 39 (2.72%) Amazon RDS
13 34 (2.37%) MariaDB
14 29 (2.02%) Oracle Database
15 18 (1.25%) HBase
16 16 (1.11%) RDBMS
17 14 (0.97%) Oracle Database 11g
17 14 (0.97%) Amazon DynamoDB
18 12 (0.84%) Oracle Reports
19 11 (0.77%) SQL Server 2008
Development Applications
1 262 (18.25%) Git (software)
2 237 (16.50%) Jenkins
3 136 (9.47%) Subversion
4 101 (7.03%) Hudson
5 99 (6.89%) JIRA
6 56 (3.90%) Maven
7 36 (2.51%) TeamCity
8 26 (1.81%) Selenium
9 22 (1.53%) JUnit
9 22 (1.53%) Cucumber
10 21 (1.46%) Atlassian Bamboo
11 19 (1.32%) Eclipse
12 16 (1.11%) Team Foundation Server
13 14 (0.97%) ProC
13 14 (0.97%) Ant
14 13 (0.91%) SoapUI
15 12 (0.84%) Mercurial
15 12 (0.84%) IntelliJ
16 11 (0.77%) TestLink
17 8 (0.56%) Visual Studio
General
1 160 (11.14%) Finance
2 73 (5.08%) Telecoms
3 54 (3.76%) Marketing
4 53 (3.69%) Games
5 44 (3.06%) Retail
6 24 (1.67%) Advertising
7 20 (1.39%) Back Office
8 19 (1.32%) Banking
9 18 (1.25%) Online Betting
10 15 (1.04%) Manufacturing
11 12 (0.84%) Electronics
12 8 (0.56%) Publishing
13 7 (0.49%) Financial Institution
14 4 (0.28%) Local Government
15 3 (0.21%) Investment Banking
16 2 (0.14%) Billing
16 2 (0.14%) Welsh Language
17 1 (0.070%) German Language
17 1 (0.070%) Spanish Language
17 1 (0.070%) Aerospace
Job Titles
1 447 (31.13%) Administrator
2 422 (29.39%) Systems Administrator
3 332 (23.12%) Linux Administrator
4 293 (20.40%) Linux Systems Administrator
5 270 (18.80%) DevOps Engineer
6 187 (13.02%) Linux Engineer
7 144 (10.03%) Systems Engineer
8 120 (8.36%) Support Engineer
9 113 (7.87%) Linux DevOps Engineer
10 109 (7.59%) Developer
11 74 (5.15%) Infrastructure Engineer
12 56 (3.90%) Analyst
13 54 (3.76%) Linux Systems Engineer
14 43 (2.99%) Senior Linux Administrator
15 37 (2.58%) Senior Linux Systems Administrator
15 37 (2.58%) IT Support
16 36 (2.51%) Senior DevOps Engineer
17 35 (2.44%) Architect
18 34 (2.37%) Senior Systems Administrator
19 30 (2.09%) Junior
Libraries, Frameworks & Software Standards
1 214 (14.90%) LAMP
2 187 (13.02%) Web Services
3 85 (5.92%) HTML
4 71 (4.94%) CSS
5 64 (4.46%) .NET
6 45 (3.13%) RabbitMQ
7 43 (2.99%) ASP.NET
7 43 (2.99%) XML
8 41 (2.86%) jQuery
9 40 (2.79%) RESTful
10 33 (2.30%) Middleware
11 26 (1.81%) JSON
11 26 (1.81%) Memcached
11 26 (1.81%) SignalR
12 23 (1.60%) Servlets
13 22 (1.53%) ActiveMQ
13 22 (1.53%) HTML5
14 21 (1.46%) Django
14 21 (1.46%) J2EE
14 21 (1.46%) ASP.NET Web API
Miscellaneous
1 184 (12.81%) Data Centre
2 89 (6.20%) Analytical Skills
3 80 (5.57%) Clustering
4 68 (4.74%) Computer Science
5 48 (3.34%) Wiki
6 44 (3.06%) Replication
7 43 (2.99%) Private Cloud
8 40 (2.79%) Management Information System
9 38 (2.65%) Public Cloud
10 29 (2.02%) Hybrid Cloud
11 23 (1.60%) Statistics
12 22 (1.53%) Foreign Exchange (FX)
12 22 (1.53%) Digital Media
13 21 (1.46%) Online Games
14 19 (1.32%) User Experience
14 19 (1.32%) Eurex
14 19 (1.32%) Derivative
15 18 (1.25%) PKI
15 18 (1.25%) Client/Server
16 17 (1.18%) Hedge funds
Operating Systems
1 1369 (95.33%) Linux
2 590 (41.09%) Red Hat Enterprise Linux
3 530 (36.91%) Windows
4 443 (30.85%) Ubuntu
5 266 (18.52%) Debian
6 183 (12.74%) UNIX
7 130 (9.05%) Windows Server 2008
8 95 (6.62%) Fedora
9 87 (6.06%) Windows Server 2012
10 69 (4.81%) Windows Server 2003
11 67 (4.67%) Solaris
12 51 (3.55%) SUSE
13 46 (3.20%) Windows 7
14 36 (2.51%) Mac OS X
15 30 (2.09%) Oracle Linux
16 21 (1.46%) AIX
17 15 (1.04%) Scientific Linux
18 14 (0.97%) Amazon Linux
19 12 (0.84%) SUSE Linux Enterprise Server
19 12 (0.84%) Android
Processes & Methodologies
1 440 (30.64%) DevOps
2 302 (21.03%) Agile Software Development
3 250 (17.41%) Configuration Management
4 195 (13.58%) Continuous Integration
5 176 (12.26%) E-Commerce
6 152 (10.58%) Load Balancing
7 143 (9.96%) Open Source
8 136 (9.47%) ITIL
9 106 (7.38%) Scrum
10 74 (5.15%) Migration
11 72 (5.01%) Disaster Recovery
12 62 (4.32%) Performance Tuning
13 57 (3.97%) Project Management
14 55 (3.83%) TDD
14 55 (3.83%) Mentoring
15 54 (3.76%) Service Delivery
16 50 (3.48%) Change Management
17 44 (3.06%) Server Building
18 43 (2.99%) Software Engineering
18 43 (2.99%) Capacity Planning
Programming Languages
1 561 (39.07%) Python
2 548 (38.16%) Bash Shell
3 412 (28.69%) Perl
4 366 (25.49%) PHP
5 355 (24.72%) Java
6 307 (21.38%) Ruby
7 269 (18.73%) SQL
8 169 (11.77%) Shell Script
9 99 (6.89%) JavaScript
10 79 (5.50%) PowerShell
11 65 (4.53%) C#
12 59 (4.11%) C++
13 40 (2.79%) C
14 35 (2.44%) Korn
15 18 (1.25%) PHP5
15 18 (1.25%) Groovy
15 18 (1.25%) T-SQL
16 14 (0.97%) Scala
17 12 (0.84%) AWK
18 11 (0.77%) Objective-C
Qualifications
1 177 (12.33%) Degree
2 82 (5.71%) Cisco Certification
3 47 (3.27%) CCNP
4 44 (3.06%) Security Cleared
5 40 (2.79%) CCNA
6 39 (2.72%) VMware Certified Professional (VCP)
7 36 (2.51%) RHCE
8 29 (2.02%) Microsoft Certification
9 25 (1.74%) MCSE
9 25 (1.74%) SC Cleared
10 21 (1.46%) RHCSA
11 14 (0.97%) DV Cleared
11 14 (0.97%) CCIE
12 10 (0.70%) LPIC
13 8 (0.56%) MCTS
13 8 (0.56%) A+ Certification
14 7 (0.49%) MCSA
14 7 (0.49%) MCP
14 7 (0.49%) MCSD
15 6 (0.42%) CCA
Quality Assurance & Compliance
1 54 (3.76%) QA
2 30 (2.09%) ISO/IEC 27001
3 29 (2.02%) SLA
4 7 (0.49%) ISO 9001
5 6 (0.42%) PCI DSS
6 1 (0.070%) ISO 9000
6 1 (0.070%) BS7799
System Software
1 347 (24.16%) VMware Infrastructure
2 123 (8.57%) Active Directory
3 95 (6.62%) vSphere
4 86 (5.99%) Postfix
5 79 (5.50%) Docker
6 76 (5.29%) iptables
7 73 (5.08%) XenServer
8 71 (4.94%) NFS
9 65 (4.53%) KVM
10 63 (4.39%) Hyper-V
11 55 (3.83%) Varnish
12 54 (3.76%) Xen
13 49 (3.41%) Samba
14 46 (3.20%) VMware ESXi
15 38 (2.65%) VMware ESX
16 37 (2.58%) vCloud
17 26 (1.81%) VirtualBox
18 25 (1.74%) Squid
19 22 (1.53%) qmail
20 12 (0.84%) VMware Server
Systems Management
1 604 (42.06%) Puppet
2 338 (23.54%) Opscode Chef
3 212 (14.76%) Nagios
4 158 (11.00%) Ansible
5 95 (6.62%) ZABBIX
6 57 (3.97%) Vagrant
7 56 (3.90%) Salt
8 46 (3.20%) HAProxy
9 32 (2.23%) logstash
10 30 (2.09%) Graphite
11 26 (1.81%) Cacti
12 24 (1.67%) Cobbler
12 24 (1.67%) cPanel
13 21 (1.46%) SELinux
14 19 (1.32%) Rundeck
15 17 (1.18%) Opsview
16 13 (0.91%) ITRS Geneos
16 13 (0.91%) Plesk
16 13 (0.91%) WSUS
17 12 (0.84%) Kibana
Vendors
1 854 (59.47%) Red Hat
2 532 (37.05%) VMware
3 193 (13.44%) Microsoft
4 184 (12.81%) Cisco
5 140 (9.75%) Oracle
6 90 (6.27%) HP
7 87 (6.06%) Citrix
8 74 (5.15%) Splunk
9 45 (3.13%) Rackspace
10 43 (2.99%) Juniper
11 39 (2.72%) Google
12 25 (1.74%) Sun
13 24 (1.67%) Bloomberg
13 24 (1.67%) F5
14 22 (1.53%) Zend
14 22 (1.53%) CheckPoint
14 22 (1.53%) EMC
15 21 (1.46%) Atlassian
16 20 (1.39%) NetApp
17 19 (1.32%) SAP
City, London
Digital Pursuit Ltd
Salary: From £50,000 to £55,000 per annum
Posted: 2 hours ago
Reading, Berkshire
Timothy James Consulting Ltd
Salary: £45k - 50k per year
Posted: 2 hours ago
London
Hanover IT Recruitment
Salary: From £40,000 to £90,000 per annum
Posted: 3 hours ago
Leamington Spa, Warwickshire
Colossus Associates
Salary: £35000 - £40000 per annum, Benefits 0
Posted: 3 hours ago
London
Burns Sheehan
Salary: £25000 - £30000 per annum + Benefits
Posted: 3 hours ago
Kent
Duke Hudson
Salary: Unspecified
Posted: 5 hours ago
Gloucester, Gloucestershire
People Source Consulting
Salary: £35000 - £40000 per annum
Posted: 5 hours ago
South West London
Addition Solutions
Salary: From £30,000 to £38,000 per annum
Posted: 6 hours ago
Leeds, West Yorkshire
The Bridge Ltd
Salary: Unspecified £Excellent + Bonus + Good benefits
Posted: 9 hours ago
London
Ampersand Consulting
Salary: £20000 - £26000 per annum + Benefits
Posted: 12 hours ago
City, London
Austin Fraser Ltd
Posted: 20 hours ago
London
Digitech Resourcing
Posted: 20 hours ago
Belfast, County Antrim
HAYS INFORMATION TECHNOLOGY
Salary: £25000.00 - £35000.00 per annum
Posted: Yesterday
London
Digital Gurus
Salary: £50000 - £65000 Per Annum Benefits
Posted: Yesterday
Reading, Berkshire
360 Resourcing Solutions
Salary: £40k - 55k per year + excellent bens
Posted: Yesterday
London
Explore Recruitment Solutions
Salary: £45000 - £57000 per annum
Posted: Yesterday
Chesterfield, Derbyshire
HAYS INFORMATION TECHNOLOGY
Salary: £30000.00 - £40000.00 per annum
Posted: Yesterday
London
People Source Consulting
Salary: £50000 - £65000 per annum + Benefits
Posted: Yesterday
Guildford, Surrey
ANSON MCCADE
Salary: £60,000 - £80,000 + outstanding package
Posted: Yesterday
East London
Coral Racing Ltd
Salary: up to 45k basic
Posted: Yesterday