The table below looks at the statistics for CentOS skills in IT contracts advertised across the UK. Included is a guide to the average contractor rates offered in IT contracts that have cited CentOS over the 3 months to 22 September 2014 with a comparison to the same period in the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

Location
3 months to
22 Sep 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 371 428 499
Rank change year-on-year
+57 +71
Contract jobs citing CentOS 256 146 94
As % of all contract IT jobs located in the UK 0.44% 0.28% 0.16%
As % of the Operating Systems category 2.01% 1.21% 0.78%
Number of daily rates quoted 182 103 59
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£400 £368 £350
Average daily rate % change year-on-year
+8.84% +5.00%
90% offered a daily rate of more than £248 £250 £259
10% offered a daily rate of more than £500 £450 £416
UK excluding London average daily rate £375 £375 £294
% change year-on-year
- +27.65%
Number of hourly rates quoted 0 1 2
Average hourly rate - £45.00 £21.00
Average hourly rate % change year-on-year
- +114.28%
UK excluding London average hourly rate - £45.00 £21.00
% change year-on-year
- +114.28%

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

Operating Systems Category
UK
Contract IT job ads with a match in the
Operating Systems category
12729 12042 12126
As % of all contract IT jobs located in the UK 22.02% 22.81% 20.74%
Number of daily rates quoted 7375 6792 6192
Average daily rate £350 £353 £350
Average daily rate % change year-on-year
-0.70% +0.71%
90% offered a daily rate of more than £163 £180 £180
10% offered a daily rate of more than £505 £525 £500
UK excluding London average daily rate £325 £325 £323
% change year-on-year
- +0.77%
Number of hourly rates quoted 1110 1021 1215
Average hourly rate £16.00 £16.00 £17.50
Average hourly rate % change year-on-year
- -8.57%
90% offered a hourly rate of more than £11.00 £11.00 £11.50
10% offered a hourly rate of more than £35.00 £37.00 £40.00
UK excluding London average hourly rate £16.20 £15.50 £17.00
% change year-on-year
+4.51% -8.82%

CentOS
Jobs Demand Trend

This chart provides the 3-month moving total of IT contractor 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
Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing CentOS within the UK.

CentOS Daily Rate Trend in the UK

CentOS
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS within the UK over the 3 months to 22 September 2014.

CentOS Daily Rate Histogram in the UK

CentOS
Hourly Rate Trend

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing CentOS within the UK.

CentOS Hourly Rate Trend in the UK

CentOS
Top 30 Contract Locations

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing CentOS within the UK over the 3 months to 22 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
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +44 241 £400 +8.84% 97
London +32 124 £400 +8.84% 46
South West +13 53 £400 +23.07% 10
Bristol +22 44 £400 +23.07% 8
South East +2 26 £380 -2.56% 17
Yorkshire +10 21 £225 -45.12% 8
Leeds +5 20 £225 -45.12% 4
West Yorkshire +2 20 £225 -45.12% 5
City of London +18 15 £425 +16.04% 8
Hampshire -6 14 £401 -10.83% 6
Wales - 13 £363 - 3
North West -3 12 £400 - 5
Cheshire +8 11 £400 - 5
Southampton - 11 £401 -
East Midlands - 8 £328 - 2
Surrey - 8 £405 - 5
Northamptonshire - 6 £200 -
South Wales - 6 £350 -
Northampton - 5 £200 -
Cardiff - 5 £350 -
Gloucester - 4 £388 - 1
Gloucestershire - 4 £388 - 1
Buckinghamshire 0 3 £350 -3.44%
Nottinghamshire - 2 £430 - 1
Nottingham - 2 £430 - 1
Hammersmith - 2 £413 -
East Yorkshire - 1 £260 -
West Midlands - 1 - - 7
Kingston Upon Thames - 1 £388 - 1
Guildford - 1 - - 4

CentOS
Top 30 Related IT Skills

For the 6 months to 22 September 2014, IT contractor 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 contract IT job ads sampled that cited CentOS.

1 411 (85.27%) Linux
2 275 (57.05%) Red Hat
3 234 (48.55%) Puppet
4 219 (45.44%) Apache
5 193 (40.04%) DevOps
6 178 (36.93%) PHP
7 175 (36.31%) MySQL
8 169 (35.06%) Agile Software Development
9 168 (34.85%) Python
10 164 (34.02%) Ubuntu
11 149 (30.91%) Continuous Integration
12 142 (29.46%) Red Hat Enterprise Linux
13 134 (27.80%) VMware
14 128 (26.56%) Jenkins
15 125 (25.93%) Ruby
16 124 (25.73%) Opscode Chef
17 121 (25.10%) Java
18 112 (23.24%) Perl
19 110 (22.82%) Open Source
20 105 (21.78%) Git (software)
21 104 (21.58%) Bash Shell
22 103 (21.37%) Amazon AWS
23 100 (20.75%) Web Services
23 100 (20.75%) Windows
24 99 (20.54%) LAMP
25 95 (19.71%) Nagios
26 91 (18.88%) Configuration Management
27 85 (17.63%) JavaScript
28 79 (16.39%) UNIX
29 74 (15.35%) VMware Infrastructure

CentOS
Top Related IT Skills by Category

For the 6 months to 22 September 2014, IT contractor 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 contract IT job ads sampled that cited CentOS. Up to 20 skills are shown per category.

Application Platforms
1 219 (45.44%) Apache
2 61 (12.66%) nginx
3 49 (10.17%) Tomcat
4 28 (5.81%) OpenStack
5 21 (4.36%) Elasticsearch
6 16 (3.32%) Node.js
7 15 (3.11%) Confluence
8 14 (2.90%) Moodle
9 11 (2.28%) IIS
9 11 (2.28%) MS Exchange
10 8 (1.66%) MediaWiki
11 7 (1.45%) WebSphere
12 6 (1.24%) WebLogic
12 6 (1.24%) SharePoint
12 6 (1.24%) SharePoint 2010
12 6 (1.24%) Exchange Server 2010
13 5 (1.04%) Drupal
13 5 (1.04%) Jetty
13 5 (1.04%) Office Communications Server
14 4 (0.83%) WordPress
Applications
1 10 (2.07%) MS Excel
2 2 (0.41%) MS Office
Business Applications
1 6 (1.24%) SAP Oil and Gas
1 6 (1.24%) Magento
2 3 (0.62%) Shopify
3 2 (0.41%) Oracle EBS
4 1 (0.21%) Oracle BPM
Cloud Services
1 103 (21.37%) Amazon AWS
2 71 (14.73%) Amazon EC2
3 63 (13.07%) Amazon S3
4 33 (6.85%) SaaS
5 24 (4.98%) Amazon ELB
6 22 (4.56%) Route 53
7 20 (4.15%) PaaS
8 11 (2.28%) Cloud Computing
9 6 (1.24%) Rackspace Cloud
10 5 (1.04%) Google Apps
11 4 (0.83%) IaaS
12 2 (0.41%) Office 365
13 1 (0.21%) Joyent
13 1 (0.21%) Amazon SQS
13 1 (0.21%) Amazon EMR
Communications & Networking
1 61 (12.66%) Firewall
2 48 (9.96%) LDAP
3 47 (9.75%) DNS
4 36 (7.47%) SAN
5 28 (5.81%) WAN
6 26 (5.39%) LAN
7 25 (5.19%) Internet
8 24 (4.98%) DHCP
9 20 (4.15%) TCP/IP
9 20 (4.15%) VPN
10 18 (3.73%) SSL
10 18 (3.73%) iSCSI
11 17 (3.53%) SSH
12 15 (3.11%) Network Security
13 12 (2.49%) BGP
14 10 (2.07%) OSPF
15 9 (1.87%) Ethernet
16 8 (1.66%) SMTP
16 8 (1.66%) IPv6
16 8 (1.66%) EIGRP
Database & Business Intelligence
1 175 (36.31%) MySQL
2 63 (13.07%) MongoDB
3 62 (12.86%) PostgreSQL
4 48 (9.96%) NoSQL
5 29 (6.02%) Apache Cassandra
6 26 (5.39%) SQL Server
7 24 (4.98%) Big Data
8 23 (4.77%) Relational Database
9 21 (4.36%) Hadoop
10 17 (3.53%) CouchDB
11 15 (3.11%) Riak
12 13 (2.70%) Oracle Database
13 11 (2.28%) Redis
13 11 (2.28%) RDBMS
14 10 (2.07%) SQL Server Reporting Services
14 10 (2.07%) SQL Server 2005
14 10 (2.07%) SQL Server Integration Services
14 10 (2.07%) SQL Server 2012
15 9 (1.87%) Oracle Database 11g
16 7 (1.45%) SQL Server Analysis Services
Development Applications
1 128 (26.56%) Jenkins
2 105 (21.78%) Git (software)
3 71 (14.73%) Maven
4 56 (11.62%) Hudson
5 41 (8.51%) PHPUnit
6 39 (8.09%) Subversion
7 18 (3.73%) JIRA
8 16 (3.32%) RSpec
9 14 (2.90%) Cucumber
10 9 (1.87%) JUnit
11 6 (1.24%) Selenium
12 4 (0.83%) Eclipse
12 4 (0.83%) Mockito
12 4 (0.83%) Mercurial
12 4 (0.83%) Gerrit
12 4 (0.83%) Behat
13 3 (0.62%) Artifactory
13 3 (0.62%) Grunt
13 3 (0.62%) Atlassian Bamboo
13 3 (0.62%) Ant
General
1 26 (5.39%) Finance
2 10 (2.07%) Games
3 9 (1.87%) Pharmaceutical
4 8 (1.66%) Electronics
5 7 (1.45%) Telecoms
5 7 (1.45%) Manufacturing
6 6 (1.24%) Marketing
7 4 (0.83%) Retail
8 3 (0.62%) Publishing
8 3 (0.62%) Banking
9 2 (0.41%) Advertising
9 2 (0.41%) Legal
10 1 (0.21%) Billing
Job Titles
1 111 (23.03%) DevOps Engineer
2 82 (17.01%) Developer
3 48 (9.96%) Administrator
4 47 (9.75%) Linux Engineer
5 44 (9.13%) PHP Developer
6 43 (8.92%) Linux DevOps Engineer
7 40 (8.30%) Systems Administrator
8 28 (5.81%) Linux Administrator
9 26 (5.39%) Senior DevOps Engineer
10 24 (4.98%) 2nd Line Support
11 23 (4.77%) Analyst
12 22 (4.56%) Architect
13 20 (4.15%) Linux Systems Administrator
13 20 (4.15%) Java Developer
14 17 (3.53%) Software Engineer
14 17 (3.53%) Support Engineer
15 16 (3.32%) PHP Zend Developer
15 16 (3.32%) Designer
16 14 (2.90%) DBA
17 13 (2.70%) Support Analyst
Libraries, Frameworks & Software Standards
1 100 (20.75%) Web Services
2 99 (20.54%) LAMP
3 66 (13.69%) jQuery
4 56 (11.62%) HTML
5 49 (10.17%) HTML5
6 41 (8.51%) Zend Framework
7 34 (7.05%) RESTful
8 26 (5.39%) CSS
9 22 (4.56%) XML
10 21 (4.36%) Spring
11 20 (4.15%) MCollective
12 15 (3.11%) JSON
13 13 (2.70%) Servlets
14 11 (2.28%) Ajax
15 9 (1.87%) Symfony
15 9 (1.87%) Regular Expression
16 7 (1.45%) REST
16 7 (1.45%) Hibernate
17 6 (1.24%) ActiveMQ
17 6 (1.24%) SOAP
Miscellaneous
1 110 (22.82%) Open Source
2 27 (5.60%) Analytical Skills
3 25 (5.19%) Computer Science
4 21 (4.36%) Replication
5 15 (3.11%) NHS
6 13 (2.70%) Clustering
7 10 (2.07%) E-Learning
7 10 (2.07%) Wiki
8 9 (1.87%) Management Information System
9 8 (1.66%) VLE
9 8 (1.66%) Online Games
10 6 (1.24%) Blackberry
10 6 (1.24%) DTV
11 5 (1.04%) User Experience
12 4 (0.83%) Learning Management System
12 4 (0.83%) PKI
12 4 (0.83%) Animation
13 3 (0.62%) Linked Data
13 3 (0.62%) Mobile App
13 3 (0.62%) Enterprise Software
Operating Systems
1 411 (85.27%) Linux
2 164 (34.02%) Ubuntu
3 142 (29.46%) Red Hat Enterprise Linux
4 100 (20.75%) Windows
5 79 (16.39%) UNIX
6 60 (12.45%) Debian
7 49 (10.17%) Windows Server 2003
8 46 (9.54%) Windows Server 2008
9 25 (5.19%) Windows XP
10 15 (3.11%) Fedora
11 13 (2.70%) Windows Server 2012
12 10 (2.07%) Windows 7
12 10 (2.07%) AIX
13 8 (1.66%) Solaris
14 4 (0.83%) SUSE
14 4 (0.83%) Scientific Linux
15 3 (0.62%) SELinux
15 3 (0.62%) VMS
16 2 (0.41%) Oracle Linux
17 1 (0.21%) Windows 8
Processes & Methodologies
1 193 (40.04%) DevOps
2 169 (35.06%) Agile Software Development
3 149 (30.91%) Continuous Integration
4 91 (18.88%) Configuration Management
5 72 (14.94%) Scrum
6 58 (12.03%) Load Balancing
7 48 (9.96%) Workflow
8 44 (9.13%) Service Management
9 37 (7.68%) ITIL
10 32 (6.64%) Software Engineering
10 32 (6.64%) Build Automation
11 31 (6.43%) Kanban
12 25 (5.19%) Incident Management
12 25 (5.19%) Data Modelling
12 25 (5.19%) TDD
13 24 (4.98%) Mentoring
14 18 (3.73%) Service Delivery
15 17 (3.53%) OO
15 17 (3.53%) E-Commerce
15 17 (3.53%) Performance Testing
Programming Languages
1 178 (36.93%) PHP
2 168 (34.85%) Python
3 125 (25.93%) Ruby
4 121 (25.10%) Java
5 112 (23.24%) Perl
6 104 (21.58%) Bash Shell
7 85 (17.63%) JavaScript
8 53 (11.00%) SQL
9 38 (7.88%) Shell Script
10 13 (2.70%) PHP5
11 9 (1.87%) sed
12 8 (1.66%) Scala
13 5 (1.04%) T-SQL
13 5 (1.04%) C++
14 4 (0.83%) PowerShell
14 4 (0.83%) XQuery
15 3 (0.62%) C
16 2 (0.41%) PL/SQL
16 2 (0.41%) MATLAB
16 2 (0.41%) Korn
Qualifications
1 70 (14.52%) Security Cleared
2 61 (12.66%) SC Cleared
3 20 (4.15%) Degree
4 14 (2.90%) CCNA
4 14 (2.90%) Cisco Certification
5 7 (1.45%) DV Cleared
6 5 (1.04%) BC Cleared
7 4 (0.83%) RHCE
8 3 (0.62%) CTC Cleared
8 3 (0.62%) Microsoft Certification
8 3 (0.62%) MCSE
9 2 (0.41%) PhD
9 2 (0.41%) OCP
9 2 (0.41%) Oracle Certification
9 2 (0.41%) LPIC
10 1 (0.21%) Linux+ Certification
10 1 (0.21%) RHCT
10 1 (0.21%) ITIL Foundation Certificate
10 1 (0.21%) ISTQB Foundation Certification
10 1 (0.21%) ISEB
Quality Assurance & Compliance
1 29 (6.02%) QA
2 17 (3.53%) SLA
3 2 (0.41%) PCI DSS
System Software
1 74 (15.35%) VMware Infrastructure
2 38 (7.88%) XenServer
3 37 (7.68%) NFS
4 35 (7.26%) Active Directory
5 34 (7.05%) vCloud
6 30 (6.22%) Samba
7 21 (4.36%) VMware Server
8 20 (4.15%) Postfix
9 17 (3.53%) Sendmail
10 16 (3.32%) Squid
11 14 (2.90%) Xen
11 14 (2.90%) Hyper-V
12 13 (2.70%) Varnish
13 12 (2.49%) vSphere
14 7 (1.45%) qmail
15 5 (1.04%) VMware ESX
15 5 (1.04%) VirtualBox
15 5 (1.04%) KVM
16 3 (0.62%) Docker
16 3 (0.62%) VMware Workstation
Systems Management
1 234 (48.55%) Puppet
2 124 (25.73%) Opscode Chef
3 95 (19.71%) Nagios
4 49 (10.17%) ZABBIX
5 48 (9.96%) Vagrant
6 45 (9.34%) Salt
6 45 (9.34%) Cacti
7 21 (4.36%) Red Hat Spacewalk
8 19 (3.94%) Zenoss
9 16 (3.32%) Kibana
10 14 (2.90%) Ansible
11 13 (2.70%) Graylog2
12 9 (1.87%) YUM
12 9 (1.87%) Cobbler
13 8 (1.66%) Opsview
13 8 (1.66%) logstash
14 7 (1.45%) HAProxy
15 6 (1.24%) StatsD
15 6 (1.24%) Capistrano
15 6 (1.24%) SCCM
Vendors
1 275 (57.05%) Red Hat
2 134 (27.80%) VMware
3 72 (14.94%) Splunk
4 44 (9.13%) Zend
5 32 (6.64%) Rackspace
6 30 (6.22%) Oracle
7 27 (5.60%) Citrix
8 25 (5.19%) Percona
9 24 (4.98%) Cisco
10 23 (4.77%) Microsoft
11 20 (4.15%) EMC
11 20 (4.15%) RightScale
12 18 (3.73%) Perforce
13 17 (3.53%) NetApp
14 16 (3.32%) JBoss
15 12 (2.49%) HP
15 12 (2.49%) Google
16 9 (1.87%) Dell
16 9 (1.87%) SAP
16 9 (1.87%) SaltStack
Cheshire
Hays IT - Uk Posting account
Rate: £300.00 - £450.00 per annum
Posted: 3 hours ago
Bristol, Somerset
Kainos Software
Posted: 2 days ago
Bristol Area
Opus Recruitment Solutions Ltd
Rate: £300 to £450 per day
Posted: 3 days ago
Chester, Cheshire
Lorien Resourcing
Posted: 3 days ago
Chester, Cheshire
Harvey Nash plc
Posted: 4 days ago
Swansea, West Glamorgan
Experis Ltd
Posted: 4 days ago
London
Lorien Resourcing
Posted: 5 days ago
Croydon, Surrey
Venturi
Rate: £400 per day
Posted: 5 days ago
Chester, Cheshire
HAYS INFORMATION TECHNOLOGY
Rate: £375.00 - £425.00 per day
Posted: 5 days ago
East London
Square One Resources
Rate: Unspecified
Posted: 6 days ago
Swansea, West Glamorgan
Hydrogen Group
Rate: £220.00 - £230.00 per day
Posted: 6 days ago
Guildford, Surrey
LA International
Rate: £350 - £500 per day + quote
Posted: 6 days ago
Swansea, West Glamorgan
Timothy James Consulting Ltd
Rate: £220 - £230 per day
Posted: 6 days ago
Central London / West End
Reed Business Information Ltd
Rate: From £400 to £500 per day direct - no agency margin
Posted: 11 days ago
Swindon
Computer Futures
Rate: £150 - £300 per day + competitive
Posted: 13 days ago
Bristol
Kainos
Rate: £400 - £475 per day
Posted: 14 days ago
London
Opus Recruitment Solutions Ltd
Rate: Market Rate
Posted: 14 days ago
Haywards Heath
Greywood Associates Limited
Rate: £240 - £280 per day
Posted: 17 days ago
Berkshire
Computer Futures
Rate: £40000 - £50000 per annum + competitive
Posted: 18 days ago