The table below looks at the statistics for CentOS skills in IT contracts advertised for the England region. Included is a guide to the average contractor rates offered in IT contracts that have cited CentOS over the 3 months to 19 December 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
19 Dec 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 293 459 438
Rank change year-on-year
+166 -21
Contract jobs citing CentOS 349 100 96
As % of all contract IT jobs located in England 0.69% 0.21% 0.21%
As % of the Operating Systems category 2.97% 0.93% 0.95%
Number of daily rates quoted 257 79 54
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£425 £400 £385
Average daily rate % change year-on-year
+6.25% +3.89%
90% offered a daily rate of more than £250 £300 £215
10% offered a daily rate of more than £525 £462 £440
UK excluding London average daily rate £375 £388 £341
% change year-on-year
-3.22% +13.55%
Number of hourly rates quoted 0 1 3
Average hourly rate - £15.00 £32.50
Average hourly rate % change year-on-year
- -53.84%
UK excluding London average hourly rate - £32.50 £32.50
CentOS
UK

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

Operating Systems Category
England
Contract IT job ads with a match in the
Operating Systems category
11754 10778 10124
As % of all contract IT jobs located in England 23.30% 22.82% 22.41%
Number of daily rates quoted 7071 6149 5413
Average daily rate £363 £360 £355
Average daily rate % change year-on-year
+0.69% +1.40%
90% offered a daily rate of more than £170 £160 £180
10% offered a daily rate of more than £525 £520 £550
UK excluding London average daily rate £338 £310 £325
% change year-on-year
+8.87% -4.61%
Number of hourly rates quoted 997 979 1072
Average hourly rate £15.85 £15.50 £17.50
Average hourly rate % change year-on-year
+2.25% -11.42%
90% offered a hourly rate of more than £11.00 £11.00 £11.00
10% offered a hourly rate of more than £34.50 £33.65 £37.50
UK excluding London average hourly rate £15.85 £15.00 £17.00
% change year-on-year
+5.66% -11.76%

CentOS
Jobs Demand Trend in England

This chart provides a 3-month moving total of IT contractor jobs citing CentOS across the England region as a proportion of the total demand within the Operating Systems category.

CentOS Jobs Demand Trend in England

CentOS
Daily Rate Trend in England

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

CentOS Daily Rate Trend in England

CentOS
Daily Rate Histogram in England

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the England region over the 3 months to 19 December 2014.

CentOS Daily Rate Histogram in England

CentOS
Hourly Rate Trend in England

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

CentOS Hourly Rate Trend in England

CentOS
Contract Job Locations in England

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing CentOS within the England region over the 3 months to 19 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
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London +111 168 £450 +12.50% 27
South West +38 63 £400 +45.45% 14
South East +15 49 £420 +12.00% 25
Yorkshire +11 22 £250 -47.08% 5
East of England -5 19 £190 -52.50% 5
North West -1 16 £400 -5.88% 9
North East - 9 £300 -
East Midlands - 3 £350 - 1
West Midlands -16 1 £350 +59.09% 1
CentOS
UK

CentOS
Top 30 Related IT Skills in England

For the 6 months to 19 December 2014, IT contractor jobs across the England region 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.

1 535 (90.99%) Linux
2 307 (52.21%) Puppet
3 286 (48.64%) Red Hat
4 268 (45.58%) DevOps
5 242 (41.16%) Apache
6 236 (40.14%) Agile Software Development
7 229 (38.95%) Continuous Integration
8 208 (35.37%) PHP
9 204 (34.69%) Jenkins
10 202 (34.35%) MySQL
11 190 (32.31%) Red Hat Enterprise Linux
12 187 (31.80%) Git (software)
13 186 (31.63%) Ubuntu
14 181 (30.78%) Opscode Chef
15 176 (29.93%) Python
16 174 (29.59%) Ruby
16 174 (29.59%) Bash Shell
17 172 (29.25%) Java
18 164 (27.89%) VMware
19 124 (21.09%) Perl
20 118 (20.07%) Amazon AWS
21 117 (19.90%) Nagios
21 117 (19.90%) Configuration Management
22 113 (19.22%) JavaScript
23 109 (18.54%) Windows
24 108 (18.37%) Maven
25 106 (18.03%) Security Cleared
26 105 (17.86%) Web Services
27 99 (16.84%) LAMP
28 97 (16.50%) Open Source

CentOS
Top Related IT Skills in England by Category

For the 6 months to 19 December 2014, IT contractor jobs across the England region 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
1 242 (41.16%) Apache
2 60 (10.20%) Tomcat
3 50 (8.50%) nginx
4 49 (8.33%) OpenStack
5 29 (4.93%) JBoss
6 27 (4.59%) Elasticsearch
7 21 (3.57%) Node.js
8 12 (2.04%) WebSphere
8 12 (2.04%) IIS
8 12 (2.04%) MS Exchange
9 11 (1.87%) Cloud Foundry
10 10 (1.70%) Confluence
11 8 (1.36%) Exchange Server 2010
12 7 (1.19%) Moodle
13 6 (1.02%) MediaWiki
13 6 (1.02%) Drupal
14 4 (0.68%) Apache ServiceMix
14 4 (0.68%) Exchange Server 2013
14 4 (0.68%) Lync
14 4 (0.68%) SharePoint
Applications
1 26 (4.42%) MS Excel
2 6 (1.02%) MS Office
Business Applications
1 5 (0.85%) SAP Oil and Gas
2 3 (0.51%) ResourceLink
3 2 (0.34%) Magento
3 2 (0.34%) Agresso
4 1 (0.17%) Oracle BPM
Cloud Services
1 118 (20.07%) Amazon AWS
2 59 (10.03%) Amazon S3
3 58 (9.86%) Amazon EC2
4 49 (8.33%) PaaS
5 26 (4.42%) Amazon ELB
6 18 (3.06%) Route 53
7 15 (2.55%) SaaS
8 11 (1.87%) Heroku
8 11 (1.87%) Engine Yard
9 6 (1.02%) Google Apps
10 5 (0.85%) Cloud Computing
11 4 (0.68%) GitHub
12 3 (0.51%) Amazon SQS
12 3 (0.51%) Google Cloud Platform
13 2 (0.34%) IaaS
13 2 (0.34%) Office 365
14 1 (0.17%) Microsoft Azure
14 1 (0.17%) Joyent
Communications & Networking
1 86 (14.63%) Firewall
2 52 (8.84%) DNS
3 38 (6.46%) TCP/IP
4 32 (5.44%) LDAP
5 31 (5.27%) WAN
6 30 (5.10%) LAN
6 30 (5.10%) Internet
7 29 (4.93%) VPN
8 27 (4.59%) VLAN
9 26 (4.42%) SAN
10 25 (4.25%) SSL
11 20 (3.40%) Network Security
12 16 (2.72%) DHCP
13 15 (2.55%) HTTP
14 13 (2.21%) iSCSI
15 10 (1.70%) VoIP
16 9 (1.53%) Wireshark
16 9 (1.53%) Cisco ASA
16 9 (1.53%) Fibre Channel
17 8 (1.36%) IP Telephony
Database & Business Intelligence
1 202 (34.35%) MySQL
2 78 (13.27%) MongoDB
3 74 (12.59%) NoSQL
4 62 (10.54%) PostgreSQL
5 54 (9.18%) Apache Cassandra
6 30 (5.10%) Hadoop
7 26 (4.42%) Big Data
8 25 (4.25%) SQL Server
9 24 (4.08%) Relational Database
10 22 (3.74%) CouchDB
11 20 (3.40%) Redis
11 20 (3.40%) Riak
12 13 (2.21%) MariaDB
13 12 (2.04%) RDBMS
14 10 (1.70%) Amazon RDS
15 8 (1.36%) SQL Server 2012
16 5 (0.85%) Pentaho
16 5 (0.85%) Couchbase
17 4 (0.68%) Oracle Reports
18 3 (0.51%) Oracle Database
Development Applications
1 204 (34.69%) Jenkins
2 187 (31.80%) Git (software)
3 108 (18.37%) Maven
4 72 (12.24%) PHPUnit
5 52 (8.84%) Subversion
6 51 (8.67%) Hudson
7 15 (2.55%) JIRA
8 14 (2.38%) RSpec
9 13 (2.21%) Cucumber
10 11 (1.87%) JUnit
10 11 (1.87%) Selenium
11 10 (1.70%) Artifactory
11 10 (1.70%) Atlassian Bamboo
12 9 (1.53%) JMeter
13 6 (1.02%) Mercurial
14 5 (0.85%) Gerrit
14 5 (0.85%) Behat
14 5 (0.85%) Gradle
14 5 (0.85%) Grunt
15 4 (0.68%) QUnit
General
1 56 (9.52%) Finance
2 14 (2.38%) Games
3 7 (1.19%) Marketing
4 6 (1.02%) Retail
4 6 (1.02%) Electronics
4 6 (1.02%) Manufacturing
4 6 (1.02%) Publishing
5 5 (0.85%) Telecoms
6 3 (0.51%) Legal
6 3 (0.51%) Banking
7 1 (0.17%) French Language
7 1 (0.17%) German Language
7 1 (0.17%) Billing
Job Titles
1 157 (26.70%) DevOps Engineer
2 117 (19.90%) Developer
3 65 (11.05%) Administrator
4 62 (10.54%) Linux DevOps Engineer
4 62 (10.54%) PHP Developer
5 57 (9.69%) Senior DevOps Engineer
6 50 (8.50%) Linux Administrator
7 47 (7.99%) Systems Administrator
8 33 (5.61%) Linux Engineer
9 32 (5.44%) PHP Zend Developer
10 30 (5.10%) Architect
10 30 (5.10%) Linux Systems Administrator
11 25 (4.25%) Analyst
11 25 (4.25%) Software Engineer
12 22 (3.74%) Senior Developer
12 22 (3.74%) Support Analyst
13 18 (3.06%) Systems Engineer
13 18 (3.06%) DevOps Architect
14 17 (2.89%) Support Engineer
14 17 (2.89%) 2nd Line Support
Libraries, Frameworks & Software Standards
1 105 (17.86%) Web Services
2 99 (16.84%) LAMP
3 91 (15.48%) HTML
3 91 (15.48%) jQuery
4 81 (13.78%) HTML5
5 67 (11.39%) Zend Framework
6 65 (11.05%) Doctrine
7 34 (5.78%) MCollective
8 32 (5.44%) CSS
9 19 (3.23%) JSON
10 18 (3.06%) REST
11 17 (2.89%) RESTful
12 15 (2.55%) XML
13 13 (2.21%) Spring
14 12 (2.04%) JPA
14 12 (2.04%) Hibernate
15 10 (1.70%) SOAP
16 9 (1.53%) J2EE
16 9 (1.53%) ActiveMQ
16 9 (1.53%) AngularJS
Miscellaneous
1 97 (16.50%) Open Source
2 40 (6.80%) Clustering
3 29 (4.93%) Computer Science
4 14 (2.38%) Replication
5 12 (2.04%) Analytical Skills
5 12 (2.04%) PKI
5 12 (2.04%) Device Driver
6 10 (1.70%) Online Games
7 8 (1.36%) Wiki
7 8 (1.36%) NHS
8 7 (1.19%) Data Structures
9 5 (0.85%) DTV
10 4 (0.68%) User Experience
10 4 (0.68%) Algorithms
10 4 (0.68%) VLE
10 4 (0.68%) W3C
10 4 (0.68%) Smartcard
11 3 (0.51%) Blackberry
11 3 (0.51%) Client/Server
11 3 (0.51%) E-Learning
Operating Systems
1 535 (90.99%) Linux
2 190 (32.31%) Red Hat Enterprise Linux
3 186 (31.63%) Ubuntu
4 109 (18.54%) Windows
5 70 (11.90%) UNIX
6 58 (9.86%) Debian
7 38 (6.46%) Windows Server 2003
8 37 (6.29%) Windows Server 2008
9 22 (3.74%) Windows Server 2012
10 11 (1.87%) Windows XP
10 11 (1.87%) Solaris
10 11 (1.87%) Fedora
11 10 (1.70%) VMS
12 9 (1.53%) Mac OS X
13 6 (1.02%) Windows 7
13 6 (1.02%) SUSE
14 5 (0.85%) AIX
14 5 (0.85%) SUSE Linux Enterprise Server
15 3 (0.51%) Windows 8
16 2 (0.34%) Amazon Linux
Processes & Methodologies
1 268 (45.58%) DevOps
2 236 (40.14%) Agile Software Development
3 229 (38.95%) Continuous Integration
4 117 (19.90%) Configuration Management
5 92 (15.65%) Scrum
6 73 (12.41%) Load Balancing
7 65 (11.05%) Automated Testing
8 56 (9.52%) Software Engineering
9 53 (9.01%) Build Automation
10 44 (7.48%) Kanban
11 43 (7.31%) Mentoring
12 39 (6.63%) ITIL
13 38 (6.46%) Refactoring
14 36 (6.12%) Workflow
15 31 (5.27%) Service Delivery
16 26 (4.42%) TDD
16 26 (4.42%) Service Management
17 24 (4.08%) Change Management
18 21 (3.57%) OO
19 20 (3.40%) Capacity Planning
Programming Languages
1 208 (35.37%) PHP
2 176 (29.93%) Python
3 174 (29.59%) Ruby
3 174 (29.59%) Bash Shell
4 172 (29.25%) Java
5 124 (21.09%) Perl
6 113 (19.22%) JavaScript
7 60 (10.20%) SQL
8 36 (6.12%) Shell Script
9 13 (2.21%) Korn
10 12 (2.04%) PowerShell
11 9 (1.53%) Scala
12 8 (1.36%) C++
13 7 (1.19%) PHP5
14 6 (1.02%) C
15 4 (0.68%) Groovy
15 4 (0.68%) C#
16 3 (0.51%) T-SQL
16 3 (0.51%) Golang
17 2 (0.34%) sed
Qualifications
1 106 (18.03%) Security Cleared
2 77 (13.10%) SC Cleared
3 29 (4.93%) Cisco Certification
4 28 (4.76%) CCNA
5 16 (2.72%) Degree
6 11 (1.87%) DV Cleared
7 6 (1.02%) RHCSA
7 6 (1.02%) RHCT
8 5 (0.85%) BC Cleared
9 3 (0.51%) Microsoft Certification
9 3 (0.51%) MCSE
9 3 (0.51%) PhD
9 3 (0.51%) CTC Cleared
10 2 (0.34%) LPIC
10 2 (0.34%) RHCE
11 1 (0.17%) CCNP
11 1 (0.17%) Linux+ Certification
11 1 (0.17%) MCITP
Quality Assurance & Compliance
1 44 (7.48%) QA
2 12 (2.04%) SLA
3 8 (1.36%) PCI DSS
4 4 (0.68%) HIPAA
4 4 (0.68%) Sarbanes-Oxley
5 1 (0.17%) ISO/IEC 27001
System Software
1 81 (13.78%) VMware Infrastructure
2 47 (7.99%) vCloud
3 34 (5.78%) XenServer
4 24 (4.08%) Active Directory
5 23 (3.91%) Samba
6 22 (3.74%) Hyper-V
7 17 (2.89%) NFS
8 14 (2.38%) vSphere
8 14 (2.38%) Xen
9 13 (2.21%) Varnish
10 10 (1.70%) Postfix
11 9 (1.53%) VMware ESX
11 9 (1.53%) XenApp
12 8 (1.36%) VMware ESXi
12 8 (1.36%) XenDesktop
12 8 (1.36%) Firmware
13 7 (1.19%) Docker
14 5 (0.85%) Sendmail
15 4 (0.68%) KVM
15 4 (0.68%) VirtualBox
Systems Management
1 307 (52.21%) Puppet
2 181 (30.78%) Opscode Chef
3 117 (19.90%) Nagios
4 69 (11.73%) ZABBIX
5 51 (8.67%) Ansible
5 51 (8.67%) Salt
6 47 (7.99%) Vagrant
7 41 (6.97%) Cacti
8 27 (4.59%) Cobbler
9 23 (3.91%) Kibana
9 23 (3.91%) Zenoss
10 22 (3.74%) Graphite
11 19 (3.23%) Red Hat Spacewalk
11 19 (3.23%) Graylog2
12 17 (2.89%) yum
13 15 (2.55%) FortiGate
14 11 (1.87%) logstash
14 11 (1.87%) SELinux
15 9 (1.53%) collectd
16 8 (1.36%) HAProxy
Vendors
1 286 (48.64%) Red Hat
2 164 (27.89%) VMware
3 70 (11.90%) Zend
4 58 (9.86%) Splunk
5 48 (8.16%) Microsoft
6 37 (6.29%) Cisco
7 35 (5.95%) Citrix
8 34 (5.78%) Oracle
9 26 (4.42%) Rackspace
10 24 (4.08%) Perforce
11 22 (3.74%) Percona
12 18 (3.06%) EMC
13 15 (2.55%) RightScale
14 11 (1.87%) Google
15 10 (1.70%) Juniper
15 10 (1.70%) IBM
16 9 (1.53%) HP
16 9 (1.53%) NetApp
17 7 (1.19%) New Relic
18 6 (1.02%) AppDynamics
Greater Manchester
Opus Recruitment Solutions Ltd
Rate: Market Rate
Posted: Yesterday
London
Spargonet Consulting Plc
Rate: £400 - £450 per day
Posted: 3 days ago
Cambridge, Cambridgeshire
Cooper Lomaz Recruitment Ltd
Rate: Negotiable
Posted: 3 days ago
London
Vertical IT
Rate: MARKET RATE + COMPETITIVE
Posted: 4 days ago
Staines, Middlesex
Quadratek People Limited
Rate: From £430 to £500 per day EXcellent salary + variable + excellent bene
Posted: 4 days ago
East Anglia
HP
Posted: 22 days ago