The table below looks at the statistics for CentOS skills in IT contracts advertised for the London region. Included is a guide to the average contractor rates offered in IT contracts that have cited CentOS over the 3 months to 28 November 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
28 Nov 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 247 350 337
Rank change year-on-year
+103 -13
Contract jobs citing CentOS 174 72 51
As % of all contract IT jobs located in London 0.72% 0.29% 0.23%
As % of the Operating Systems category 3.16% 1.28% 1.03%
Number of daily rates quoted 131 52 32
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£450 £375 £406
Average daily rate % change year-on-year
+20.00% -7.69%
90% offered a daily rate of more than £350 £303 £291
10% offered a daily rate of more than £525 £455 £449
UK excluding London average daily rate £375 £356 £325
% change year-on-year
+5.26% +9.61%
Number of hourly rates quoted 0 0 2
Average hourly rate - - £29.50
UK excluding London average hourly rate - £32.50 -
CentOS
England

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

Operating Systems Category
London
Contract IT job ads with a match in the
Operating Systems category
5507 5621 4931
As % of all contract IT jobs located in London 22.89% 22.69% 22.23%
Number of daily rates quoted 3895 3750 3224
Average daily rate £400 £400 £388
Average daily rate % change year-on-year
- +3.22%
90% offered a daily rate of more than £180 £225 £201
10% offered a daily rate of more than £550 £550 £590
UK excluding London average daily rate £330 £315 £325
% change year-on-year
+4.76% -3.07%
Number of hourly rates quoted 222 223 281
Average hourly rate £15.50 £17.00 £18.50
Average hourly rate % change year-on-year
-8.82% -8.10%
90% offered a hourly rate of more than £11.59 £12.50 £12.00
10% offered a hourly rate of more than £30.00 £35.00 £42.00
UK excluding London average hourly rate £16.00 £15.00 £17.00
% change year-on-year
+6.66% -11.76%

CentOS
Jobs Demand Trend in London

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

CentOS Jobs Demand Trend in London

CentOS
Daily Rate Trend in London

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

CentOS Daily Rate Trend in London

CentOS
Daily Rate Histogram in London

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the London region over the 3 months to 28 November 2014.

CentOS Daily Rate Histogram in London

CentOS
Hourly Rate Trend in London

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

CentOS Hourly Rate Trend in London

CentOS
Contract Job Locations in London

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing CentOS within the London region over the 3 months to 28 November 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
City of London +20 23 £400 +6.66% 15
Hammersmith - 1 £413 - 1
Croydon - 1 £400 -
Kingston Upon Thames - - - -
Twickenham - - - -
Uxbridge - - - -
Bromley - - - - 1
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 28 November 2014, IT contractor jobs across the London 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.

1 272 (92.83%) Linux
2 190 (64.85%) DevOps
3 188 (64.16%) Puppet
4 136 (46.42%) Jenkins
4 136 (46.42%) Red Hat
5 129 (44.03%) Ubuntu
6 128 (43.69%) Opscode Chef
6 128 (43.69%) Red Hat Enterprise Linux
7 124 (42.32%) Git (software)
8 123 (41.98%) Python
9 120 (40.96%) Agile Software Development
10 116 (39.59%) Bash Shell
11 111 (37.88%) Ruby
12 108 (36.86%) Continuous Integration
13 104 (35.49%) Apache
13 104 (35.49%) Java
14 98 (33.45%) MySQL
15 91 (31.06%) PHP
16 90 (30.72%) Maven
17 83 (28.33%) Nagios
18 81 (27.65%) Perl
19 76 (25.94%) Web Services
20 73 (24.91%) MongoDB
21 69 (23.55%) Amazon AWS
22 65 (22.18%) Open Source
22 65 (22.18%) VMware
23 64 (21.84%) Scrum
23 64 (21.84%) Configuration Management
23 64 (21.84%) NoSQL
24 58 (19.80%) ZABBIX

CentOS
Top Related IT Skills in London by Category

For the 6 months to 28 November 2014, IT contractor jobs across the London 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
1 104 (35.49%) Apache
2 41 (13.99%) OpenStack
3 30 (10.24%) nginx
4 24 (8.19%) Elasticsearch
5 19 (6.48%) Tomcat
6 18 (6.14%) Node.js
7 9 (3.07%) Cloud Foundry
7 9 (3.07%) IIS
7 9 (3.07%) JBoss
8 8 (2.73%) MS Exchange
8 8 (2.73%) Confluence
9 6 (2.05%) Moodle
10 5 (1.71%) SharePoint 2010
10 5 (1.71%) Exchange Server 2010
10 5 (1.71%) SharePoint
11 4 (1.37%) WebLogic
11 4 (1.37%) Office Communications Server
12 3 (1.02%) WordPress
12 3 (1.02%) Oracle SOA Suite
13 2 (0.68%) Drupal
Applications
1 18 (6.14%) MS Excel
2 4 (1.37%) MS Office
Business Applications
1 3 (1.02%) ResourceLink
2 2 (0.68%) Agresso
2 2 (0.68%) Magento
3 1 (0.34%) Oracle BPM
Cloud Services
1 69 (23.55%) Amazon AWS
2 30 (10.24%) PaaS
3 23 (7.85%) Amazon S3
4 19 (6.48%) Amazon EC2
5 9 (3.07%) Heroku
5 9 (3.07%) Engine Yard
6 6 (2.05%) Amazon ELB
7 4 (1.37%) SaaS
8 3 (1.02%) GitHub
8 3 (1.02%) Google Cloud Platform
8 3 (1.02%) Route 53
9 2 (0.68%) Google Apps
9 2 (0.68%) Office 365
9 2 (0.68%) Cloud Computing
10 1 (0.34%) Amazon EMR
10 1 (0.34%) Microsoft Azure
10 1 (0.34%) Amazon SQS
10 1 (0.34%) Joyent
Communications & Networking
1 31 (10.58%) DNS
2 22 (7.51%) Internet
3 21 (7.17%) Firewall
4 19 (6.48%) TCP/IP
5 14 (4.78%) LDAP
6 10 (3.41%) VLAN
6 10 (3.41%) HTTP
6 10 (3.41%) SAN
6 10 (3.41%) iSCSI
7 9 (3.07%) VPN
8 7 (2.39%) Fibre Channel
8 7 (2.39%) WAN
9 6 (2.05%) SSL
9 6 (2.05%) LAN
10 5 (1.71%) Wi-Fi
11 4 (1.37%) SSH
11 4 (1.37%) BGP
11 4 (1.37%) NAS
12 3 (1.02%) F5 BIG-IP LTM
12 3 (1.02%) DHCP
Database & Business Intelligence
1 98 (33.45%) MySQL
2 73 (24.91%) MongoDB
3 64 (21.84%) NoSQL
4 53 (18.09%) Apache Cassandra
5 25 (8.53%) Hadoop
6 24 (8.19%) PostgreSQL
6 24 (8.19%) Big Data
7 23 (7.85%) CouchDB
8 21 (7.17%) Riak
9 17 (5.80%) SQL Server
9 17 (5.80%) Redis
10 12 (4.10%) Relational Database
11 9 (3.07%) RDBMS
12 8 (2.73%) SQL Server 2012
13 5 (1.71%) Couchbase
14 4 (1.37%) Amazon RDS
15 3 (1.02%) Oracle Database
15 3 (1.02%) Oracle Database 11g
16 2 (0.68%) SQL Server 2008
16 2 (0.68%) MariaDB
Development Applications
1 136 (46.42%) Jenkins
2 124 (42.32%) Git (software)
3 90 (30.72%) Maven
4 27 (9.22%) Hudson
5 26 (8.87%) Subversion
6 11 (3.75%) JIRA
7 10 (3.41%) PHPUnit
8 8 (2.73%) Artifactory
9 7 (2.39%) Selenium
10 6 (2.05%) Atlassian Bamboo
11 5 (1.71%) Gradle
11 5 (1.71%) Cucumber
11 5 (1.71%) Gerrit
11 5 (1.71%) JUnit
12 4 (1.37%) Behat
12 4 (1.37%) Mercurial
12 4 (1.37%) Grunt
13 3 (1.02%) JMeter
14 2 (0.68%) MSI
14 2 (0.68%) Ant
General
1 14 (4.78%) Games
2 13 (4.44%) Finance
3 5 (1.71%) Publishing
4 3 (1.02%) Banking
5 2 (0.68%) Electronics
5 2 (0.68%) Legal
5 2 (0.68%) Retail
6 1 (0.34%) Billing
6 1 (0.34%) Manufacturing
Job Titles
1 99 (33.79%) DevOps Engineer
2 52 (17.75%) Senior DevOps Engineer
3 47 (16.04%) Developer
4 38 (12.97%) Linux DevOps Engineer
5 32 (10.92%) Administrator
6 30 (10.24%) Architect
7 29 (9.90%) Systems Administrator
8 23 (7.85%) Linux Engineer
9 21 (7.17%) DevOps Architect
10 19 (6.48%) Linux Administrator
11 16 (5.46%) Linux Systems Administrator
11 16 (5.46%) PHP Developer
12 14 (4.78%) Senior Developer
13 10 (3.41%) Java Developer
13 10 (3.41%) Operations Engineer
13 10 (3.41%) Senior Operations Engineer
14 9 (3.07%) DevOps Administrator
14 9 (3.07%) Systems Engineer
15 7 (2.39%) PHP Zend Developer
15 7 (2.39%) Consultant
Libraries, Frameworks & Software Standards
1 76 (25.94%) Web Services
2 53 (18.09%) LAMP
3 35 (11.95%) MCollective
4 27 (9.22%) HTML
5 23 (7.85%) HTML5
6 22 (7.51%) jQuery
7 19 (6.48%) CSS
8 14 (4.78%) RESTful
9 12 (4.10%) JSON
10 11 (3.75%) REST
11 9 (3.07%) AngularJS
11 9 (3.07%) Zend Framework
12 8 (2.73%) Spring
12 8 (2.73%) XML
13 7 (2.39%) .NET
14 6 (2.05%) Hibernate
14 6 (2.05%) SOAP
14 6 (2.05%) Backbone.js
14 6 (2.05%) Play Framework
15 5 (1.71%) RabbitMQ
Miscellaneous
1 65 (22.18%) Open Source
2 32 (10.92%) Computer Science
3 15 (5.12%) Clustering
4 14 (4.78%) Replication
5 10 (3.41%) Online Games
6 9 (3.07%) Data Structures
6 9 (3.07%) Device Driver
7 5 (1.71%) Blackberry
7 5 (1.71%) E-Learning
8 4 (1.37%) W3C
8 4 (1.37%) Algorithms
8 4 (1.37%) User Experience
8 4 (1.37%) Analytical Skills
9 3 (1.02%) Mobile App
9 3 (1.02%) Enterprise Software
9 3 (1.02%) Digital Media
9 3 (1.02%) Client/Server
9 3 (1.02%) Interactive TV
10 2 (0.68%) Wiki
10 2 (0.68%) Management Information System
Operating Systems
1 272 (92.83%) Linux
2 129 (44.03%) Ubuntu
3 128 (43.69%) Red Hat Enterprise Linux
4 43 (14.68%) Windows
5 40 (13.65%) Debian
6 39 (13.31%) UNIX
7 17 (5.80%) Windows Server 2008
8 12 (4.10%) Windows Server 2003
9 10 (3.41%) Windows Server 2012
10 6 (2.05%) VMS
11 5 (1.71%) AIX
12 4 (1.37%) SUSE
12 4 (1.37%) Windows 7
13 3 (1.02%) SUSE Linux Enterprise Server
13 3 (1.02%) Solaris
13 3 (1.02%) Fedora
14 2 (0.68%) Mac OS X
14 2 (0.68%) Windows XP
14 2 (0.68%) Windows 8
15 1 (0.34%) Amazon Linux
Processes & Methodologies
1 190 (64.85%) DevOps
2 120 (40.96%) Agile Software Development
3 108 (36.86%) Continuous Integration
4 64 (21.84%) Scrum
4 64 (21.84%) Configuration Management
5 52 (17.75%) Load Balancing
6 44 (15.02%) Build Automation
7 42 (14.33%) Kanban
8 29 (9.90%) Service Delivery
9 28 (9.56%) ITIL
10 20 (6.83%) Automated Testing
11 18 (6.14%) OO
11 18 (6.14%) Change Management
12 17 (5.80%) BDD
13 15 (5.12%) TDD
14 13 (4.44%) Release Management
15 12 (4.10%) Mentoring
16 11 (3.75%) Performance Tuning
17 10 (3.41%) Workflow
17 10 (3.41%) SOA
Programming Languages
1 123 (41.98%) Python
2 116 (39.59%) Bash Shell
3 111 (37.88%) Ruby
4 104 (35.49%) Java
5 91 (31.06%) PHP
6 81 (27.65%) Perl
7 48 (16.38%) JavaScript
8 23 (7.85%) Shell Script
9 22 (7.51%) SQL
10 9 (3.07%) Korn
11 8 (2.73%) Scala
12 5 (1.71%) PowerShell
13 4 (1.37%) PHP5
14 3 (1.02%) sed
14 3 (1.02%) T-SQL
15 2 (0.68%) XQuery
15 2 (0.68%) WebLogic Scripting Tool
15 2 (0.68%) Groovy
15 2 (0.68%) TypeScript
15 2 (0.68%) Golang
Qualifications
1 45 (15.36%) Security Cleared
2 37 (12.63%) SC Cleared
3 8 (2.73%) RHCSA
4 6 (2.05%) Degree
5 3 (1.02%) MCSE
5 3 (1.02%) Microsoft Certification
6 2 (0.68%) LPIC
6 2 (0.68%) RHCE
6 2 (0.68%) Cisco Certification
7 1 (0.34%) BC Cleared
7 1 (0.34%) DV Cleared
7 1 (0.34%) CCNP
7 1 (0.34%) CCNA
7 1 (0.34%) RHCT
7 1 (0.34%) Linux+ Certification
Quality Assurance & Compliance
1 16 (5.46%) QA
2 12 (4.10%) SLA
3 1 (0.34%) PCI DSS
System Software
1 38 (12.97%) VMware Infrastructure
2 34 (11.60%) vCloud
3 13 (4.44%) Active Directory
4 12 (4.10%) vSphere
5 11 (3.75%) Xen
6 9 (3.07%) XenServer
6 9 (3.07%) Varnish
7 8 (2.73%) Hyper-V
8 7 (2.39%) NFS
9 6 (2.05%) VMware ESXi
10 5 (1.71%) XenApp
11 4 (1.37%) XenDesktop
11 4 (1.37%) Docker
12 2 (0.68%) VMware ESX
12 2 (0.68%) Samba
12 2 (0.68%) Terminal Services
12 2 (0.68%) Veritas Cluster Server
12 2 (0.68%) Ceph
13 1 (0.34%) KVM
13 1 (0.34%) Postfix
Systems Management
1 188 (64.16%) Puppet
2 128 (43.69%) Opscode Chef
3 83 (28.33%) Nagios
4 58 (19.80%) ZABBIX
5 34 (11.60%) Ansible
6 33 (11.26%) Cacti
7 28 (9.56%) Salt
8 24 (8.19%) Cobbler
8 24 (8.19%) Kibana
9 21 (7.17%) Zenoss
10 20 (6.83%) Graylog2
11 17 (5.80%) Red Hat Spacewalk
12 11 (3.75%) Vagrant
13 8 (2.73%) collectd
13 8 (2.73%) HAProxy
14 7 (2.39%) Opsview
14 7 (2.39%) logstash
15 6 (2.05%) Capistrano
16 5 (1.71%) CFEngine
17 4 (1.37%) SCCM
Vendors
1 136 (46.42%) Red Hat
2 65 (22.18%) VMware
3 29 (9.90%) Splunk
4 28 (9.56%) Microsoft
5 26 (8.87%) Rackspace
6 25 (8.53%) Perforce
7 22 (7.51%) Oracle
8 13 (4.44%) Percona
9 12 (4.10%) Cisco
10 10 (3.41%) Citrix
11 9 (3.07%) Zend
12 7 (2.39%) New Relic
12 7 (2.39%) IBM
12 7 (2.39%) Dell
12 7 (2.39%) EMC
12 7 (2.39%) Google
13 6 (2.05%) Veritas
13 6 (2.05%) AppDynamics
14 5 (1.71%) SaltStack
14 5 (1.71%) Infoblox
London
Quant Capital
Rate: From £350 to £450 per day
Posted: Yesterday
London
Opus Recruitment Solutions Ltd
Rate: Market Rate
Posted: 2 days ago
London
Digitech Resourcing Ltd
Rate: From £250 to £400 per day
Posted: 2 days ago
Central London / West End
Digitech Resourcing Ltd
Rate: Up to £220 per day
Posted: 2 days ago
London
Explore Recruitment Solutions
Rate: £350 - £450 per day
Posted: 4 days ago
London
Computer Futures
Rate: competitive
Posted: 6 days ago
West London
Experis Ltd
Posted: 6 days ago
London
Hays IT - Uk Posting account
Rate: £45.00 - £60.00 per day
Posted: 6 days ago
West London
Claremont Consulting Limited
Rate: £500 - £560 per annum
Posted: 9 days ago
Central London / West End
London & Partners
Rate: Up to £40,000 per annum
Posted: 9 days ago
City of London
CPS Group
Rate: £450 - £550 per day
Posted: 11 days ago
London
Computer Futures
Rate: competitive
Posted: 14 days ago
London
Opus Recruitment Solutions Ltd
Rate: Competitive
Posted: 14 days ago
City of London
Capita - ITMS
Rate: £550 - £650 per day
Posted: 14 days ago
London
Austin Fraser Limited
Rate: £350 - £400 per day
Posted: 15 days ago
London
Computer Futures
Rate: competitive
Posted: 22 days ago
London
Computer Futures
Rate: competitive
Posted: 26 days ago
London
Computer Futures
Rate: competitive
Posted: 27 days ago