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 October 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 Oct 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 347 450 511
Rank change year-on-year
+103 +61
Contract jobs citing CentOS 301 119 76
As % of all contract IT jobs located in the UK 0.52% 0.23% 0.14%
As % of the Operating Systems category 2.34% 0.99% 0.65%
Number of daily rates quoted 225 77 49
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£400 £363 £350
Average daily rate % change year-on-year
+10.34% +3.57%
90% offered a daily rate of more than £250 £289 £259
10% offered a daily rate of more than £500 £450 £450
UK excluding London average daily rate £388 £363 £315
% change year-on-year
+6.89% +15.07%
Number of hourly rates quoted 0 2 3
Average hourly rate - £32.50 £21.00
Average hourly rate % change year-on-year
- +54.76%
UK excluding London average hourly rate - £32.50 £21.00
% change year-on-year
- +54.76%

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
12877 12043 11626
As % of all contract IT jobs located in the UK 22.42% 23.01% 20.96%
Number of daily rates quoted 7577 6711 6094
Average daily rate £355 £358 £350
Average daily rate % change year-on-year
-0.69% +2.14%
90% offered a daily rate of more than £163 £175 £175
10% offered a daily rate of more than £525 £525 £500
UK excluding London average daily rate £325 £320 £325
% change year-on-year
+1.56% -1.53%
Number of hourly rates quoted 1144 1068 1116
Average hourly rate £16.00 £15.50 £17.00
Average hourly rate % change year-on-year
+3.22% -8.82%
90% offered a hourly rate of more than £10.50 £11.00 £11.50
10% offered a hourly rate of more than £37.50 £35.00 £40.00
UK excluding London average hourly rate £16.16 £15.00 £17.00
% change year-on-year
+7.73% -11.76%

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 October 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 October 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 +108 287 £400 +10.34% 83
London +91 144 £425 +16.43% 38
South West +24 61 £400 +23.07% 9
Bristol +22 56 £400 +23.07% 6
South East +9 33 £450 +28.57% 20
Yorkshire +10 24 £235 -42.68% 6
Leeds +12 23 £225 -45.12% 5
West Yorkshire +9 23 £225 -45.12% 5
City of London +17 21 £400 +6.66% 6
North West -5 21 £400 - 1
Cheshire +11 20 £400 - 1
Surrey +16 16 £450 +20.00% 4
Hampshire -11 12 £500 -9.09% 10
Wales - 12 £350 -
South Wales - 6 £350 -
Guildford - 5 £450 -
Cardiff - 5 £350 -
Buckinghamshire -4 4 £350 -3.44%
East Midlands - 4 £390 - 1
East of England -26 3 £310 +6.89% 5
Gloucestershire - 3 £400 - 1
Gloucester - 3 £400 - 1
Basingstoke +3 2 £550 -
Hertfordshire -19 2 £375 -16.66%
Nottinghamshire - 2 £430 - 1
Nottingham - 2 £430 - 1
West Midlands - 2 £350 -
Milton Keynes -8 1 £245 -32.41%
Northampton - 1 £245 -
Havant - 1 - - 1

CentOS
Top 30 Related IT Skills

For the 6 months to 22 October 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.

1 471 (87.22%) Linux
2 283 (52.41%) Red Hat
3 255 (47.22%) Puppet
4 237 (43.89%) Apache
5 228 (42.22%) DevOps
6 209 (38.70%) PHP
6 209 (38.70%) Agile Software Development
7 192 (35.56%) MySQL
7 192 (35.56%) Continuous Integration
8 177 (32.78%) Red Hat Enterprise Linux
9 176 (32.59%) Ubuntu
10 171 (31.67%) Python
11 154 (28.52%) Jenkins
12 150 (27.78%) Opscode Chef
13 144 (26.67%) VMware
14 143 (26.48%) Git (software)
15 142 (26.30%) Ruby
16 138 (25.56%) Bash Shell
17 136 (25.19%) Java
18 123 (22.78%) Perl
19 113 (20.93%) Windows
20 107 (19.81%) Amazon AWS
21 106 (19.63%) Open Source
22 105 (19.44%) LAMP
23 103 (19.07%) JavaScript
24 100 (18.52%) Web Services
24 100 (18.52%) Configuration Management
25 96 (17.78%) Nagios
26 85 (15.74%) Security Cleared
27 84 (15.56%) jQuery

CentOS
Top Related IT Skills by Category

For the 6 months to 22 October 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
1 237 (43.89%) Apache
2 53 (9.81%) nginx
3 47 (8.70%) Tomcat
4 30 (5.56%) OpenStack
5 24 (4.44%) Elasticsearch
6 19 (3.52%) Node.js
7 17 (3.15%) JBoss
8 15 (2.78%) Confluence
8 15 (2.78%) Moodle
9 12 (2.22%) MS Exchange
10 11 (2.04%) IIS
11 8 (1.48%) MediaWiki
12 7 (1.30%) Exchange Server 2010
12 7 (1.30%) SharePoint
13 6 (1.11%) SharePoint 2010
14 5 (0.93%) WebSphere
14 5 (0.93%) Drupal
14 5 (0.93%) Office Communications Server
14 5 (0.93%) WebLogic
15 4 (0.74%) WordPress
Applications
1 13 (2.41%) MS Excel
2 4 (0.74%) MS Office
Business Applications
1 7 (1.30%) SAP Oil and Gas
2 6 (1.11%) Magento
3 3 (0.56%) Shopify
4 2 (0.37%) Oracle EBS
5 1 (0.19%) Oracle BPM
Cloud Services
1 107 (19.81%) Amazon AWS
2 66 (12.22%) Amazon EC2
3 60 (11.11%) Amazon S3
4 26 (4.81%) SaaS
5 24 (4.44%) Amazon ELB
6 20 (3.70%) PaaS
6 20 (3.70%) Route 53
7 11 (2.04%) Cloud Computing
8 6 (1.11%) Google Apps
9 5 (0.93%) Rackspace Cloud
10 4 (0.74%) IaaS
11 2 (0.37%) Office 365
11 2 (0.37%) Joyent
12 1 (0.19%) Amazon SQS
12 1 (0.19%) Amazon EMR
Communications & Networking
1 63 (11.67%) Firewall
2 46 (8.52%) LDAP
2 46 (8.52%) DNS
3 37 (6.85%) SAN
4 32 (5.93%) Internet
5 29 (5.37%) WAN
6 28 (5.19%) LAN
7 23 (4.26%) TCP/IP
8 21 (3.89%) VPN
9 19 (3.52%) DHCP
10 17 (3.15%) SSH
11 16 (2.96%) SSL
11 16 (2.96%) Network Security
12 12 (2.22%) BGP
13 11 (2.04%) iSCSI
14 10 (1.85%) OSPF
14 10 (1.85%) Ethernet
15 8 (1.48%) EIGRP
15 8 (1.48%) IPv6
15 8 (1.48%) IPsec
Database & Business Intelligence
1 192 (35.56%) MySQL
2 70 (12.96%) MongoDB
3 62 (11.48%) PostgreSQL
4 50 (9.26%) NoSQL
5 35 (6.48%) Apache Cassandra
6 29 (5.37%) SQL Server
7 23 (4.26%) Big Data
7 23 (4.26%) Hadoop
8 21 (3.89%) Relational Database
9 19 (3.52%) CouchDB
10 17 (3.15%) Riak
11 13 (2.41%) Oracle Database
11 13 (2.41%) Redis
12 12 (2.22%) SQL Server 2012
13 10 (1.85%) RDBMS
14 9 (1.67%) SQL Server 2005
14 9 (1.67%) SQL Server Integration Services
14 9 (1.67%) SQL Server Reporting Services
14 9 (1.67%) Oracle Database 11g
15 7 (1.30%) SQL Server Analysis Services
Development Applications
1 154 (28.52%) Jenkins
2 143 (26.48%) Git (software)
3 81 (15.00%) Maven
4 61 (11.30%) PHPUnit
5 53 (9.81%) Hudson
6 39 (7.22%) Subversion
7 19 (3.52%) JIRA
8 16 (2.96%) RSpec
9 12 (2.22%) Cucumber
10 8 (1.48%) Atlassian Bamboo
10 8 (1.48%) Selenium
11 7 (1.30%) JUnit
12 5 (0.93%) Mercurial
13 4 (0.74%) Behat
13 4 (0.74%) Gerrit
14 3 (0.56%) Mockito
14 3 (0.56%) JMeter
14 3 (0.56%) Artifactory
14 3 (0.56%) Grunt
15 2 (0.37%) Capybara
General
1 39 (7.22%) Finance
2 10 (1.85%) Games
3 9 (1.67%) Electronics
4 7 (1.30%) Marketing
4 7 (1.30%) Telecoms
4 7 (1.30%) Manufacturing
5 6 (1.11%) Publishing
6 4 (0.74%) Pharmaceutical
6 4 (0.74%) Retail
7 3 (0.56%) Legal
7 3 (0.56%) Banking
8 2 (0.37%) Advertising
9 1 (0.19%) Billing
9 1 (0.19%) French Language
9 1 (0.19%) German Language
Job Titles
1 132 (24.44%) DevOps Engineer
2 109 (20.19%) Developer
3 58 (10.74%) PHP Developer
4 57 (10.56%) Linux DevOps Engineer
5 56 (10.37%) Administrator
6 45 (8.33%) Systems Administrator
7 43 (7.96%) Linux Engineer
8 37 (6.85%) Linux Administrator
9 32 (5.93%) Senior DevOps Engineer
10 29 (5.37%) PHP Zend Developer
10 29 (5.37%) Architect
11 25 (4.63%) Linux Systems Administrator
11 25 (4.63%) 2nd Line Support
12 22 (4.07%) Software Engineer
12 22 (4.07%) Analyst
13 19 (3.52%) Java Developer
14 17 (3.15%) Designer
14 17 (3.15%) DevOps Architect
15 15 (2.78%) Support Engineer
16 14 (2.59%) Systems Engineer
Libraries, Frameworks & Software Standards
1 105 (19.44%) LAMP
2 100 (18.52%) Web Services
3 84 (15.56%) jQuery
4 73 (13.52%) HTML
5 66 (12.22%) HTML5
6 57 (10.56%) Zend Framework
7 33 (6.11%) RESTful
8 28 (5.19%) CSS
9 23 (4.26%) MCollective
10 22 (4.07%) XML
11 19 (3.52%) Spring
12 14 (2.59%) JSON
13 12 (2.22%) Regular Expression
14 11 (2.04%) Servlets
15 10 (1.85%) Symfony
15 10 (1.85%) Ajax
16 7 (1.30%) ActiveMQ
16 7 (1.30%) REST
16 7 (1.30%) CSS3
16 7 (1.30%) Hibernate
Miscellaneous
1 106 (19.63%) Open Source
2 28 (5.19%) Computer Science
3 22 (4.07%) Replication
4 20 (3.70%) Analytical Skills
5 18 (3.33%) Clustering
6 11 (2.04%) NHS
7 10 (1.85%) E-Learning
7 10 (1.85%) Wiki
7 10 (1.85%) PKI
8 9 (1.67%) VLE
9 8 (1.48%) Online Games
10 7 (1.30%) DTV
10 7 (1.30%) Data Structures
11 6 (1.11%) Algorithms
11 6 (1.11%) Blackberry
11 6 (1.11%) Management Information System
12 5 (0.93%) User Experience
13 4 (0.74%) Learning Management System
13 4 (0.74%) Animation
14 3 (0.56%) Linked Data
Operating Systems
1 471 (87.22%) Linux
2 177 (32.78%) Red Hat Enterprise Linux
3 176 (32.59%) Ubuntu
4 113 (20.93%) Windows
5 78 (14.44%) UNIX
6 59 (10.93%) Debian
7 51 (9.44%) Windows Server 2003
8 46 (8.52%) Windows Server 2008
9 27 (5.00%) Windows XP
10 17 (3.15%) Fedora
11 11 (2.04%) Windows Server 2012
12 9 (1.67%) Windows 7
12 9 (1.67%) Solaris
13 8 (1.48%) AIX
14 4 (0.74%) SUSE
15 3 (0.56%) Scientific Linux
15 3 (0.56%) SELinux
16 2 (0.37%) Windows 8
16 2 (0.37%) Mac OS X
16 2 (0.37%) VMS
Processes & Methodologies
1 228 (42.22%) DevOps
2 209 (38.70%) Agile Software Development
3 192 (35.56%) Continuous Integration
4 100 (18.52%) Configuration Management
5 84 (15.56%) Scrum
6 62 (11.48%) Load Balancing
7 46 (8.52%) Workflow
8 45 (8.33%) Software Engineering
9 43 (7.96%) Service Management
10 42 (7.78%) Kanban
11 41 (7.59%) Build Automation
12 39 (7.22%) ITIL
13 33 (6.11%) Mentoring
14 31 (5.74%) Automated Testing
15 28 (5.19%) TDD
16 26 (4.81%) Data Modelling
16 26 (4.81%) Incident Management
17 25 (4.63%) Service Delivery
18 22 (4.07%) Refactoring
19 18 (3.33%) OO
Programming Languages
1 209 (38.70%) PHP
2 171 (31.67%) Python
3 142 (26.30%) Ruby
4 138 (25.56%) Bash Shell
5 136 (25.19%) Java
6 123 (22.78%) Perl
7 103 (19.07%) JavaScript
8 58 (10.74%) SQL
9 40 (7.41%) Shell Script
10 13 (2.41%) PHP5
11 10 (1.85%) sed
11 10 (1.85%) PowerShell
12 8 (1.48%) Scala
13 5 (0.93%) T-SQL
13 5 (0.93%) C++
14 4 (0.74%) XQuery
15 3 (0.56%) Korn
16 2 (0.37%) TypeScript
16 2 (0.37%) C
16 2 (0.37%) PL/SQL
Qualifications
1 85 (15.74%) Security Cleared
2 68 (12.59%) SC Cleared
3 24 (4.44%) CCNA
3 24 (4.44%) Cisco Certification
4 23 (4.26%) Degree
5 9 (1.67%) DV Cleared
6 6 (1.11%) RHCE
7 5 (0.93%) BC Cleared
8 4 (0.74%) MCSE
8 4 (0.74%) Microsoft Certification
9 3 (0.56%) CTC Cleared
9 3 (0.56%) PhD
10 2 (0.37%) OCP
10 2 (0.37%) Oracle Certification
10 2 (0.37%) LPIC
11 1 (0.19%) RHCT
11 1 (0.19%) MCITP
11 1 (0.19%) Linux+ Certification
11 1 (0.19%) ISEB
11 1 (0.19%) ITIL Foundation Certificate
Quality Assurance & Compliance
1 35 (6.48%) QA
2 19 (3.52%) SLA
3 4 (0.74%) PCI DSS
4 2 (0.37%) Sarbanes-Oxley
4 2 (0.37%) HIPAA
System Software
1 78 (14.44%) VMware Infrastructure
2 41 (7.59%) XenServer
3 40 (7.41%) vCloud
4 32 (5.93%) Samba
5 28 (5.19%) Active Directory
6 26 (4.81%) NFS
7 21 (3.89%) VMware Server
8 17 (3.15%) Postfix
8 17 (3.15%) Hyper-V
9 13 (2.41%) vSphere
10 12 (2.22%) Sendmail
11 11 (2.04%) Xen
11 11 (2.04%) Squid
11 11 (2.04%) Varnish
12 9 (1.67%) VMware ESX
13 6 (1.11%) qmail
14 5 (0.93%) VirtualBox
15 4 (0.74%) VMware ESXi
16 3 (0.56%) VMware Workstation
16 3 (0.56%) Docker
Systems Management
1 255 (47.22%) Puppet
2 150 (27.78%) Opscode Chef
3 96 (17.78%) Nagios
4 56 (10.37%) ZABBIX
5 48 (8.89%) Vagrant
6 47 (8.70%) Salt
7 41 (7.59%) Cacti
8 23 (4.26%) Zenoss
9 22 (4.07%) Ansible
10 21 (3.89%) Red Hat Spacewalk
11 20 (3.70%) Kibana
12 17 (3.15%) Graylog2
13 11 (2.04%) Cobbler
14 9 (1.67%) YUM
15 8 (1.48%) Opsview
16 7 (1.30%) SCCM
16 7 (1.30%) FortiGate
17 6 (1.11%) logstash
17 6 (1.11%) Capistrano
18 5 (0.93%) SCOM
Vendors
1 283 (52.41%) Red Hat
2 144 (26.67%) VMware
3 71 (13.15%) Splunk
4 63 (11.67%) Zend
5 33 (6.11%) Rackspace
6 32 (5.93%) Oracle
7 30 (5.56%) Citrix
8 28 (5.19%) Cisco
9 27 (5.00%) Microsoft
10 24 (4.44%) Perforce
10 24 (4.44%) EMC
11 22 (4.07%) Percona
12 18 (3.33%) RightScale
13 13 (2.41%) NetApp
14 12 (2.22%) Google
15 10 (1.85%) SAP
16 9 (1.67%) Juniper
17 8 (1.48%) Dell
17 8 (1.48%) Tripwire
18 7 (1.30%) HP
London
Vertical IT
Rate: MARKET RATE + COMPETITIVE
Posted: 12 hours ago
Bristol, Avon
Gold Group
Rate: £400 - £450 per day
Posted: 12 hours ago
Hampshire
WA Consultants
Posted: 13 hours ago
London
Spargonet Consulting Plc
Rate: £400 to £500 per day
Posted: 16 hours ago
City, London
E-synergy Solutions
Rate: £500 - £600 per day + benefits
Posted: 17 hours ago
Southampton, Hampshire
Lorien Resourcing
Posted: Yesterday
Bristol Area
Opus Recruitment Solutions Ltd
Rate: £300 to £450 per day
Posted: Yesterday
Bristol, Avon
Auburn Rose
Rate: From £250 to £300 per day
Posted: 2 days ago
Hampshire
Novate IT Ltd
Rate: £320 to £350 per annum
Posted: 2 days ago
Southampton
Novate IT Ltd
Rate: £320 - £350 per annum
Posted: 2 days ago
Bristol, Somerset
Kainos Software
Posted: 4 days ago
City, London
E-synergy Solutions
Rate: £450 - £500 per day
Posted: 5 days ago
London
Square One Resources
Rate: Unspecified
Posted: 6 days ago
Glasgow, Lanarkshire
Linn
Rate: From £35,000 to £40,000 per annum
Posted: 13 days ago
West London
Opus Recruitment Solutions Ltd
Rate: Competitive Day Rate
Posted: 14 days ago
London
Austin Fraser Limited
Rate: £350 - £400 per day
Posted: 22 days ago
Chester
Hays IT - Uk Posting account
Rate: £375.00 - £425.00 per day
Posted: 26 days ago