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 27 August 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
27 Aug 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 362 431 494
Rank change year-on-year
+69 +63
Contract jobs citing CentOS 260 144 92
As % of all contract IT jobs located in the UK 0.47% 0.27% 0.16%
As % of the Operating Systems category 2.08% 1.20% 0.75%
Number of daily rates quoted 191 106 55
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£400 £360 £350
Average daily rate % change year-on-year
+11.11% +2.85%
90% offered a daily rate of more than £225 £220 £275
10% offered a daily rate of more than £501 £450 £400
UK excluding London average daily rate £375 £350 £318
% change year-on-year
+7.14% +10.23%
Number of hourly rates quoted 0 3 2
Average hourly rate - £36.00 £21.00
Average hourly rate % change year-on-year
- +71.42%
UK excluding London average hourly rate - £36.00 £21.00
% change year-on-year
- +71.42%

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
12475 12032 12324
As % of all contract IT jobs located in the UK 22.44% 22.54% 20.99%
Number of daily rates quoted 7098 6694 6265
Average daily rate £350 £350 £350
90% offered a daily rate of more than £163 £175 £190
10% offered a daily rate of more than £513 £525 £488
UK excluding London average daily rate £323 £325 £320
% change year-on-year
-0.76% +1.56%
Number of hourly rates quoted 1063 1029 1226
Average hourly rate £15.75 £16.50 £17.50
Average hourly rate % change year-on-year
-4.54% -5.71%
90% offered a hourly rate of more than £11.00 £11.00 £11.50
10% offered a hourly rate of more than £35.00 £36.00 £40.50
UK excluding London average hourly rate £16.00 £16.00 £17.00
% change year-on-year
- -5.88%

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 27 August 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 27 August 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 +74 252 £400 +11.11% 95
London +15 117 £413 +13.79% 50
South West +28 64 £388 +19.23% 9
Bristol +23 55 £394 +21.15% 6
South East -7 28 £365 +4.28% 18
Yorkshire +22 27 £225 -43.82% 8
West Yorkshire +18 26 £225 -43.82% 7
Leeds +16 26 £225 -43.82% 7
City of London +21 18 £450 +28.57% 10
Hampshire -2 17 £365 -14.11% 4
Southampton +4 15 £365 +97.29% 2
North West +2 9 £400 - 3
East Midlands - 9 £328 - 2
Cheshire - 8 £400 - 1
Surrey +3 7 £450 - 7
Northamptonshire - 6 £200 -
Northampton - 5 £200 -
Wales - 5 £363 - 5
Gloucestershire - 4 £388 -
Gloucester - 4 £388 -
Chester - 4 £319 -
Cardiff - 3 £350 - 4
South Wales - 3 £350 - 5
Buckinghamshire -1 2 £350 +63.36% 3
Nottinghamshire - 2 £430 - 2
Nottingham - 2 £430 - 1
Guildford - 2 £501 - 4
Reading +9 1 - -
Berkshire +8 1 - - 2
Hammersmith +1 1 - - 1

CentOS
Top 30 Related IT Skills

For the 6 months to 27 August 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.

1 383 (85.11%) Linux
2 269 (59.78%) Red Hat
3 227 (50.44%) Puppet
4 209 (46.44%) Apache
5 182 (40.44%) DevOps
6 165 (36.67%) MySQL
7 164 (36.44%) PHP
8 163 (36.22%) Python
9 151 (33.56%) Ubuntu
10 141 (31.33%) Continuous Integration
11 131 (29.11%) Red Hat Enterprise Linux
12 129 (28.67%) VMware
13 125 (27.78%) Jenkins
14 122 (27.11%) Ruby
15 117 (26.00%) Java
16 113 (25.11%) Opscode Chef
17 112 (24.89%) Perl
18 105 (23.33%) Amazon AWS
19 101 (22.44%) Bash Shell
19 101 (22.44%) Agile Software Development
20 96 (21.33%) LAMP
21 95 (21.11%) Open Source
22 94 (20.89%) Web Services
23 93 (20.67%) Windows
24 91 (20.22%) Configuration Management
25 89 (19.78%) Nagios
26 81 (18.00%) Git (software)
27 75 (16.67%) Amazon EC2
28 74 (16.44%) VMware Infrastructure
29 70 (15.56%) JavaScript

CentOS
Top Related IT Skills by Category

For the 6 months to 27 August 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
1 209 (46.44%) Apache
2 57 (12.67%) nginx
3 47 (10.44%) Tomcat
4 26 (5.78%) OpenStack
5 22 (4.89%) Elasticsearch
6 15 (3.33%) Confluence
7 14 (3.11%) Moodle
8 12 (2.67%) Node.js
9 11 (2.44%) IIS
10 10 (2.22%) MS Exchange
10 10 (2.22%) WebSphere
11 8 (1.78%) Jetty
11 8 (1.78%) MediaWiki
12 6 (1.33%) SharePoint 2010
12 6 (1.33%) Exchange Server 2010
12 6 (1.33%) WebLogic
12 6 (1.33%) SharePoint
13 5 (1.11%) Drupal
13 5 (1.11%) Office Communications Server
14 4 (0.89%) WordPress
Applications
1 9 (2.00%) MS Excel
Business Applications
1 6 (1.33%) SAP Oil and Gas
1 6 (1.33%) Magento
2 5 (1.11%) Oracle EBS
3 3 (0.67%) Shopify
4 2 (0.44%) SAP ERP
5 1 (0.22%) Oracle BPM
Cloud Services
1 105 (23.33%) Amazon AWS
2 75 (16.67%) Amazon EC2
3 65 (14.44%) Amazon S3
4 33 (7.33%) SaaS
5 30 (6.67%) Route 53
5 30 (6.67%) Amazon ELB
6 22 (4.89%) PaaS
7 11 (2.44%) Cloud Computing
8 7 (1.56%) Rackspace Cloud
9 4 (0.89%) Google Apps
10 3 (0.67%) IaaS
11 2 (0.44%) GitHub
11 2 (0.44%) Office 365
12 1 (0.22%) Joyent
12 1 (0.22%) Amazon SQS
12 1 (0.22%) Amazon EMR
Communications & Networking
1 58 (12.89%) Firewall
2 53 (11.78%) DNS
3 44 (9.78%) LDAP
4 31 (6.89%) SAN
5 30 (6.67%) DHCP
6 22 (4.89%) WAN
7 21 (4.67%) LAN
7 21 (4.67%) Internet
8 20 (4.44%) VPN
9 19 (4.22%) TCP/IP
9 19 (4.22%) iSCSI
9 19 (4.22%) SSH
10 17 (3.78%) Network Security
10 17 (3.78%) SSL
11 11 (2.44%) BGP
12 10 (2.22%) OSPF
13 9 (2.00%) Ethernet
14 8 (1.78%) SMTP
14 8 (1.78%) HTTP
14 8 (1.78%) EIGRP
Database & Business Intelligence
1 165 (36.67%) MySQL
2 54 (12.00%) MongoDB
3 48 (10.67%) NoSQL
4 46 (10.22%) PostgreSQL
5 28 (6.22%) Apache Cassandra
6 27 (6.00%) Big Data
7 23 (5.11%) Hadoop
8 18 (4.00%) CouchDB
8 18 (4.00%) Relational Database
9 17 (3.78%) Riak
9 17 (3.78%) SQL Server
10 10 (2.22%) Redis
11 8 (1.78%) Oracle Database
12 7 (1.56%) Data Warehouse
13 5 (1.11%) RDBMS
14 3 (0.67%) Couchbase
14 3 (0.67%) Hazelcast
14 3 (0.67%) SQL Server Reporting Services
14 3 (0.67%) SQL Server 2005
14 3 (0.67%) SQL Server Integration Services
Development Applications
1 125 (27.78%) Jenkins
2 81 (18.00%) Git (software)
3 69 (15.33%) Maven
4 61 (13.56%) Hudson
5 38 (8.44%) Subversion
6 31 (6.89%) PHPUnit
7 17 (3.78%) JIRA
8 15 (3.33%) RSpec
9 12 (2.67%) Cucumber
10 7 (1.56%) JUnit
11 6 (1.33%) Selenium
12 4 (0.89%) Mockito
13 3 (0.67%) Mercurial
13 3 (0.67%) Eclipse
13 3 (0.67%) Ant
13 3 (0.67%) Gerrit
13 3 (0.67%) Grunt
14 2 (0.44%) Appcelerator Titanium
14 2 (0.44%) FishEye
14 2 (0.44%) Behat
General
1 26 (5.78%) Finance
2 12 (2.67%) Games
3 9 (2.00%) Pharmaceutical
4 8 (1.78%) Electronics
5 7 (1.56%) Telecoms
5 7 (1.56%) Manufacturing
6 6 (1.33%) Marketing
7 3 (0.67%) Retail
8 2 (0.44%) Advertising
8 2 (0.44%) Publishing
8 2 (0.44%) Legal
9 1 (0.22%) Banking
9 1 (0.22%) Billing
Job Titles
1 101 (22.44%) DevOps Engineer
2 66 (14.67%) Developer
3 48 (10.67%) Linux Engineer
4 44 (9.78%) Administrator
5 40 (8.89%) Systems Administrator
6 36 (8.00%) PHP Developer
7 35 (7.78%) Linux DevOps Engineer
8 30 (6.67%) Linux Administrator
9 26 (5.78%) Senior DevOps Engineer
10 24 (5.33%) 2nd Line Support
11 22 (4.89%) Analyst
11 22 (4.89%) Linux Systems Administrator
12 20 (4.44%) Architect
12 20 (4.44%) Support Engineer
13 16 (3.56%) Designer
14 14 (3.11%) Systems Engineer
15 13 (2.89%) Java Developer
15 13 (2.89%) Linux Support
16 12 (2.67%) PHP Zend Developer
16 12 (2.67%) Software Engineer
Libraries, Frameworks & Software Standards
1 96 (21.33%) LAMP
2 94 (20.89%) Web Services
3 58 (12.89%) jQuery
4 45 (10.00%) HTML
5 39 (8.67%) HTML5
6 33 (7.33%) Zend Framework
7 29 (6.44%) RESTful
8 24 (5.33%) XML
9 23 (5.11%) CSS
10 20 (4.44%) Spring
10 20 (4.44%) MCollective
11 19 (4.22%) JSON
12 14 (3.11%) Servlets
13 13 (2.89%) Ajax
14 11 (2.44%) Symfony
15 9 (2.00%) Regular Expression
16 8 (1.78%) Hibernate
17 7 (1.56%) CakePHP
17 7 (1.56%) REST
18 6 (1.33%) CSS3
Miscellaneous
1 95 (21.11%) Open Source
2 21 (4.67%) Computer Science
3 15 (3.33%) NHS
4 12 (2.67%) Clustering
5 10 (2.22%) E-Learning
5 10 (2.22%) Wiki
5 10 (2.22%) Online Games
6 9 (2.00%) Management Information System
6 9 (2.00%) Replication
7 8 (1.78%) VLE
8 6 (1.33%) Blackberry
8 6 (1.33%) DTV
9 4 (0.89%) PKI
9 4 (0.89%) Animation
9 4 (0.89%) Learning Management System
10 3 (0.67%) Linked Data
10 3 (0.67%) Mobile App
11 2 (0.44%) Enterprise Software
11 2 (0.44%) Visualisation
11 2 (0.44%) iSeries
Operating Systems
1 383 (85.11%) Linux
2 151 (33.56%) Ubuntu
3 131 (29.11%) Red Hat Enterprise Linux
4 93 (20.67%) Windows
5 69 (15.33%) UNIX
6 57 (12.67%) Debian
7 50 (11.11%) Windows Server 2003
8 47 (10.44%) Windows Server 2008
9 24 (5.33%) Windows XP
10 15 (3.33%) Fedora
11 12 (2.67%) Windows Server 2012
12 10 (2.22%) Windows 7
12 10 (2.22%) AIX
13 8 (1.78%) Solaris
14 4 (0.89%) SUSE
14 4 (0.89%) Scientific Linux
15 3 (0.67%) SELinux
15 3 (0.67%) VMS
16 2 (0.44%) Oracle Linux
17 1 (0.22%) Android
Processes & Methodologies
1 182 (40.44%) DevOps
2 141 (31.33%) Continuous Integration
3 101 (22.44%) Agile Software Development
4 91 (20.22%) Configuration Management
5 65 (14.44%) Scrum
6 52 (11.56%) Load Balancing
7 46 (10.22%) Workflow
8 43 (9.56%) Service Management
9 34 (7.56%) ITIL
10 32 (7.11%) Build Automation
11 27 (6.00%) Kanban
12 24 (5.33%) Software Engineering
12 24 (5.33%) Incident Management
13 23 (5.11%) E-Commerce
14 22 (4.89%) TDD
15 20 (4.44%) Performance Testing
16 18 (4.00%) Data Modelling
17 16 (3.56%) Migration
18 15 (3.33%) OO
18 15 (3.33%) Service Delivery
Programming Languages
1 164 (36.44%) PHP
2 163 (36.22%) Python
3 122 (27.11%) Ruby
4 117 (26.00%) Java
5 112 (24.89%) Perl
6 101 (22.44%) Bash Shell
7 70 (15.56%) JavaScript
8 42 (9.33%) SQL
9 35 (7.78%) Shell Script
10 12 (2.67%) PHP5
11 9 (2.00%) sed
12 5 (1.11%) T-SQL
12 5 (1.11%) C++
13 4 (0.89%) XQuery
13 4 (0.89%) Scala
14 3 (0.67%) PowerShell
14 3 (0.67%) C
15 2 (0.44%) PL/SQL
15 2 (0.44%) MATLAB
15 2 (0.44%) Korn
Qualifications
1 62 (13.78%) Security Cleared
2 54 (12.00%) SC Cleared
3 20 (4.44%) Degree
4 9 (2.00%) CCNA
4 9 (2.00%) Cisco Certification
5 7 (1.56%) RHCE
6 5 (1.11%) BC Cleared
6 5 (1.11%) DV Cleared
7 3 (0.67%) Microsoft Certification
7 3 (0.67%) OCP
7 3 (0.67%) Oracle Certification
7 3 (0.67%) MCSE
8 2 (0.44%) PhD
8 2 (0.44%) CTC Cleared
8 2 (0.44%) LPIC
9 1 (0.22%) Linux+ Certification
9 1 (0.22%) RHCT
9 1 (0.22%) ITIL Foundation Certificate
9 1 (0.22%) ISTQB Foundation Certification
9 1 (0.22%) ISEB
Quality Assurance & Compliance
1 31 (6.89%) QA
2 17 (3.78%) SLA
3 1 (0.22%) PCI DSS
System Software
1 74 (16.44%) VMware Infrastructure
2 40 (8.89%) NFS
3 38 (8.44%) Active Directory
4 30 (6.67%) XenServer
4 30 (6.67%) vCloud
5 26 (5.78%) Samba
6 21 (4.67%) VMware Server
7 20 (4.44%) Postfix
8 17 (3.78%) Sendmail
8 17 (3.78%) Hyper-V
8 17 (3.78%) Xen
9 16 (3.56%) Squid
10 11 (2.44%) vSphere
10 11 (2.44%) Varnish
11 8 (1.78%) KVM
12 7 (1.56%) qmail
13 5 (1.11%) VMware ESX
14 4 (0.89%) VirtualBox
15 3 (0.67%) Oracle RMAN
15 3 (0.67%) VMware ESXi
Systems Management
1 227 (50.44%) Puppet
2 113 (25.11%) Opscode Chef
3 89 (19.78%) Nagios
4 52 (11.56%) Vagrant
5 50 (11.11%) ZABBIX
6 47 (10.44%) Cacti
7 46 (10.22%) Salt
8 21 (4.67%) Red Hat Spacewalk
9 17 (3.78%) Ansible
10 15 (3.33%) Zenoss
11 13 (2.89%) Kibana
12 10 (2.22%) Graylog2
12 10 (2.22%) logstash
13 9 (2.00%) Cobbler
13 9 (2.00%) HAProxy
14 8 (1.78%) Opsview
14 8 (1.78%) YUM
15 7 (1.56%) SCCM
15 7 (1.56%) StatsD
16 6 (1.33%) SCOM
Vendors
1 269 (59.78%) Red Hat
2 129 (28.67%) VMware
3 68 (15.11%) Splunk
4 39 (8.67%) Rackspace
5 36 (8.00%) Zend
6 31 (6.89%) Oracle
7 26 (5.78%) Microsoft
7 26 (5.78%) RightScale
8 24 (5.33%) Cisco
9 23 (5.11%) EMC
9 23 (5.11%) Percona
10 22 (4.89%) Citrix
11 21 (4.67%) NetApp
12 18 (4.00%) HP
13 15 (3.33%) JBoss
14 14 (3.11%) Perforce
15 12 (2.67%) SAP
15 12 (2.67%) SaltStack
16 9 (2.00%) Dell
17 8 (1.78%) Google
London
Parallel Consulting
Rate: £400 - £450 per annum
Posted: 13 hours ago
London
TEKsystems
Rate: £300 - £400 per day
Posted: 14 hours ago
London
Square One Resources
Rate: Unspecified
Posted: 15 hours ago
London
Computer People
Rate: Negotiable
Posted: Yesterday
London
Digitech Resourcing Ltd
Rate: From £200 to £300 per day + 6 Month Contract
Posted: Yesterday
London
Capita - ITMS
Rate: £200 - £300 per day
Posted: Yesterday
High Wycombe, Buckinghamshire
Explore Recruitment Solutions
Rate: £300 - £400 per day
Posted: Yesterday
Bristol, Somerset
Kainos Software
Posted: 4 days ago
South West
Opus Recruitment Solutions Ltd
Rate: Market Rate
Posted: 5 days ago
London
Opus Recruitment Solutions Ltd
Rate: Market Rate
Posted: 5 days ago
Bristol, Avon
People Source Consulting
Rate: £350 - £400 per day
Posted: 5 days ago
Southampton, Hampshire
Evolution Recruitment Solutions
Rate: 400
Posted: 5 days ago
Swindon
Computer Futures
Rate: £150 - £300 per day + competitive
Posted: 5 days ago
Southampton, Hampshire
Oxbridge Answers
Rate: Excellent market rates
Posted: 6 days ago
Leeds
DP Connect
Rate: £250 per day
Posted: 9 days ago
Cardiff
Hays IT - Uk Posting account
Rate: £300.00 - £450.00 per day
Posted: 9 days ago
Leeds
Hays IT - Uk Posting account
Rate: £200.00 - £250.00 per day
Posted: 12 days ago
Central London / West End
Reed Business Information Ltd
Rate: From £450 to £500 per day direct - no agency margin
Posted: 14 days ago
Central London / West End
Reed Business Information Ltd
Rate: From £400 to £500 per day direct - no agency margin
Posted: 14 days ago
London
Opus Recruitment Solutions Ltd
Rate: £300 - £350 per day
Posted: 15 days ago