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 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 310 325 348
Rank change year-on-year
+15 +23
Contract jobs citing CentOS 117 98 66
As % of all contract IT jobs located in London 0.49% 0.39% 0.25%
As % of the Operating Systems category 2.16% 1.69% 1.17%
Number of daily rates quoted 87 75 42
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£413 £363 £350
Average daily rate % change year-on-year
+13.79% +3.57%
90% offered a daily rate of more than £350 £235 £286
10% offered a daily rate of more than £533 £448 £400
UK excluding London average daily rate £375 £350 £318
% change year-on-year
+7.14% +10.23%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - £36.00 £21.00
% change year-on-year
- +71.42%
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
5423 5787 5641
As % of all contract IT jobs located in London 22.66% 22.80% 21.35%
Number of daily rates quoted 3540 3785 3421
Average daily rate £400 £388 £375
Average daily rate % change year-on-year
+3.22% +3.33%
90% offered a daily rate of more than £175 £200 £210
10% offered a daily rate of more than £550 £550 £525
UK excluding London average daily rate £323 £325 £320
% change year-on-year
-0.76% +1.56%
Number of hourly rates quoted 242 266 351
Average hourly rate £15.00 £17.50 £18.38
Average hourly rate % change year-on-year
-14.28% -4.76%
90% offered a hourly rate of more than £11.50 £12.00 £13.00
10% offered a hourly rate of more than £34.00 £28.75 £37.50
UK excluding London average hourly rate £16.00 £16.00 £17.00
% change year-on-year
- -5.88%

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 27 August 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 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
City of London +21 18 £450 +28.57% 10
Hammersmith +1 1 - - 1
Kingston Upon Thames - 1 £388 - 1
Twickenham - - - - 1
Uxbridge - - - -
Bromley - - - -
Isleworth - - - -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 27 August 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.

1 154 (92.22%) Linux
2 107 (64.07%) Puppet
3 94 (56.29%) DevOps
4 92 (55.09%) Red Hat
5 78 (46.71%) Python
6 76 (45.51%) Red Hat Enterprise Linux
7 73 (43.71%) PHP
8 70 (41.92%) Apache
9 69 (41.32%) Bash Shell
9 69 (41.32%) Opscode Chef
10 67 (40.12%) MySQL
11 65 (38.92%) Perl
12 62 (37.13%) Ubuntu
13 60 (35.93%) Jenkins
14 57 (34.13%) Git (software)
15 54 (32.34%) Nagios
16 51 (30.54%) Continuous Integration
17 49 (29.34%) Web Services
17 49 (29.34%) Java
18 48 (28.74%) Ruby
19 42 (25.15%) Amazon AWS
20 40 (23.95%) LAMP
20 40 (23.95%) NoSQL
21 39 (23.35%) Configuration Management
21 39 (23.35%) ZABBIX
22 37 (22.16%) Maven
22 37 (22.16%) MongoDB
23 35 (20.96%) Scrum
24 33 (19.76%) Debian
24 33 (19.76%) Open Source

CentOS
Top Related IT Skills in London by Category

For the 6 months to 27 August 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 70 (41.92%) Apache
2 18 (10.78%) Elasticsearch
3 15 (8.98%) OpenStack
4 14 (8.38%) nginx
5 10 (5.99%) Moodle
6 9 (5.39%) Node.js
7 7 (4.19%) MS Exchange
8 6 (3.59%) Tomcat
8 6 (3.59%) SharePoint
8 6 (3.59%) SharePoint 2010
8 6 (3.59%) Exchange Server 2010
9 5 (2.99%) Office Communications Server
10 4 (2.40%) Confluence
10 4 (2.40%) WebLogic
11 3 (1.80%) IIS
11 3 (1.80%) WordPress
11 3 (1.80%) Oracle SOA Suite
12 2 (1.20%) Drupal
13 1 (0.60%) Jetty
13 1 (0.60%) Blackberry Enterprise Server
Business Applications
1 2 (1.20%) Magento
2 1 (0.60%) Oracle BPM
Cloud Services
1 42 (25.15%) Amazon AWS
2 12 (7.19%) Amazon EC2
2 12 (7.19%) Amazon S3
3 4 (2.40%) Cloud Computing
4 3 (1.80%) SaaS
5 2 (1.20%) PaaS
5 2 (1.20%) Office 365
5 2 (1.20%) Amazon ELB
5 2 (1.20%) Route 53
5 2 (1.20%) GitHub
6 1 (0.60%) Amazon EMR
6 1 (0.60%) Joyent
6 1 (0.60%) Amazon SQS
Communications & Networking
1 16 (9.58%) Internet
2 14 (8.38%) DNS
3 11 (6.59%) LDAP
4 10 (5.99%) SSH
5 9 (5.39%) Ethernet
6 6 (3.59%) iSCSI
7 5 (2.99%) SAN
8 4 (2.40%) TCP/IP
9 3 (1.80%) BGP
10 2 (1.20%) Firewall
10 2 (1.20%) Wi-Fi
10 2 (1.20%) NAS
10 2 (1.20%) Fibre Channel
10 2 (1.20%) F5 BIG-IP LTM
10 2 (1.20%) DHCP
10 2 (1.20%) VPN
10 2 (1.20%) DMZ
10 2 (1.20%) OSPF
11 1 (0.60%) BIG-IP
11 1 (0.60%) VLAN
Database & Business Intelligence
1 67 (40.12%) MySQL
2 40 (23.95%) NoSQL
3 37 (22.16%) MongoDB
4 28 (16.77%) Apache Cassandra
5 20 (11.98%) Hadoop
6 19 (11.38%) Big Data
7 18 (10.78%) CouchDB
8 17 (10.18%) Riak
9 9 (5.39%) PostgreSQL
10 6 (3.59%) SQL Server
10 6 (3.59%) Redis
11 4 (2.40%) Relational Database
12 3 (1.80%) Oracle Database
12 3 (1.80%) Couchbase
12 3 (1.80%) SQL Server Reporting Services
12 3 (1.80%) SQL Server 2005
12 3 (1.80%) SQL Server Integration Services
12 3 (1.80%) Oracle Database 11g
13 2 (1.20%) SQL Server 2012
14 1 (0.60%) MariaDB
Development Applications
1 60 (35.93%) Jenkins
2 57 (34.13%) Git (software)
3 37 (22.16%) Maven
4 21 (12.57%) Hudson
5 10 (5.99%) Subversion
6 7 (4.19%) PHPUnit
7 5 (2.99%) JIRA
8 3 (1.80%) Mercurial
9 2 (1.20%) Selenium
9 2 (1.20%) Ant
9 2 (1.20%) Gerrit
9 2 (1.20%) FishEye
9 2 (1.20%) Behat
9 2 (1.20%) Cucumber
9 2 (1.20%) Artifactory
10 1 (0.60%) Jasmine
10 1 (0.60%) Gradle
10 1 (0.60%) PhantomJS
10 1 (0.60%) Yeoman
10 1 (0.60%) VisualVM
General
1 12 (7.19%) Finance
1 12 (7.19%) Games
2 2 (1.20%) Legal
2 2 (1.20%) Advertising
2 2 (1.20%) Publishing
2 2 (1.20%) Electronics
3 1 (0.60%) Banking
3 1 (0.60%) Retail
3 1 (0.60%) Billing
Job Titles
1 49 (29.34%) DevOps Engineer
2 24 (14.37%) Senior DevOps Engineer
3 20 (11.98%) Developer
4 18 (10.78%) Linux Engineer
5 17 (10.18%) Systems Administrator
6 16 (9.58%) Architect
6 16 (9.58%) Administrator
7 15 (8.98%) Linux DevOps Engineer
8 12 (7.19%) Linux Systems Administrator
9 11 (6.59%) Linux Administrator
9 11 (6.59%) DevOps Architect
10 9 (5.39%) PHP Developer
11 8 (4.79%) Analyst
12 7 (4.19%) Systems Engineer
12 7 (4.19%) Lead Architect
13 6 (3.59%) PHP Zend Developer
13 6 (3.59%) DBA
14 5 (2.99%) Designer
15 4 (2.40%) Senior Developer
15 4 (2.40%) Consultant
Libraries, Frameworks & Software Standards
1 49 (29.34%) Web Services
2 40 (23.95%) LAMP
3 20 (11.98%) MCollective
4 16 (9.58%) HTML
5 14 (8.38%) HTML5
6 10 (5.99%) RESTful
7 9 (5.39%) jQuery
7 9 (5.39%) Regular Expression
7 9 (5.39%) XML
8 8 (4.79%) CSS
8 8 (4.79%) Zend Framework
9 7 (4.19%) JSON
10 5 (2.99%) REST
10 5 (2.99%) CSS3
10 5 (2.99%) Backbone.js
10 5 (2.99%) AngularJS
10 5 (2.99%) Semantic HTML
11 3 (1.80%) Symfony
11 3 (1.80%) Spring
11 3 (1.80%) Hibernate
Miscellaneous
1 33 (19.76%) Open Source
2 17 (10.18%) Computer Science
3 10 (5.99%) E-Learning
3 10 (5.99%) Online Games
4 9 (5.39%) Replication
5 6 (3.59%) Clustering
5 6 (3.59%) Blackberry
6 5 (2.99%) VLE
7 4 (2.40%) Learning Management System
8 3 (1.80%) Mobile App
9 2 (1.20%) Enterprise Software
9 2 (1.20%) Social Network
9 2 (1.20%) STB
9 2 (1.20%) iSeries
10 1 (0.60%) Mathematics
10 1 (0.60%) Management Information System
10 1 (0.60%) Client/Server
10 1 (0.60%) Blog
10 1 (0.60%) Internet of Things
Operating Systems
1 154 (92.22%) Linux
2 76 (45.51%) Red Hat Enterprise Linux
3 62 (37.13%) Ubuntu
4 33 (19.76%) Debian
5 31 (18.56%) UNIX
6 21 (12.57%) Windows
7 9 (5.39%) Windows Server 2008
8 8 (4.79%) Windows Server 2003
9 5 (2.99%) AIX
10 4 (2.40%) Fedora
11 2 (1.20%) VMS
12 1 (0.60%) SUSE
12 1 (0.60%) Solaris
12 1 (0.60%) Scientific Linux
12 1 (0.60%) Windows Server 2012
Processes & Methodologies
1 94 (56.29%) DevOps
2 51 (30.54%) Continuous Integration
3 39 (23.35%) Configuration Management
4 35 (20.96%) Scrum
5 26 (15.57%) Agile Software Development
6 23 (13.77%) Load Balancing
6 23 (13.77%) Kanban
7 21 (12.57%) ITIL
8 20 (11.98%) Build Automation
9 15 (8.98%) Service Delivery
10 13 (7.78%) Performance Testing
11 11 (6.59%) TDD
11 11 (6.59%) OO
11 11 (6.59%) BDD
12 10 (5.99%) Data Modelling
13 8 (4.79%) Workflow
14 6 (3.59%) SOA
15 5 (2.99%) E-Commerce
15 5 (2.99%) Migration
15 5 (2.99%) Disaster Recovery
Programming Languages
1 78 (46.71%) Python
2 73 (43.71%) PHP
3 69 (41.32%) Bash Shell
4 65 (38.92%) Perl
5 49 (29.34%) Java
6 48 (28.74%) Ruby
7 28 (16.77%) JavaScript
8 17 (10.18%) SQL
9 14 (8.38%) Shell Script
10 9 (5.39%) sed
11 3 (1.80%) PowerShell
12 2 (1.20%) Scala
12 2 (1.20%) WebLogic Scripting Tool
12 2 (1.20%) T-SQL
12 2 (1.20%) XQuery
13 1 (0.60%) C
13 1 (0.60%) C-shell
13 1 (0.60%) Korn
13 1 (0.60%) PHP5
13 1 (0.60%) Groovy
Qualifications
1 13 (7.78%) Security Cleared
2 12 (7.19%) SC Cleared
3 5 (2.99%) Degree
4 3 (1.80%) MCSE
4 3 (1.80%) Microsoft Certification
5 2 (1.20%) RHCE
5 2 (1.20%) LPIC
6 1 (0.60%) CCNA
6 1 (0.60%) Cisco Certification
6 1 (0.60%) Linux+ Certification
6 1 (0.60%) RHCT
Quality Assurance & Compliance
1 8 (4.79%) SLA
2 3 (1.80%) QA
System Software
1 20 (11.98%) VMware Infrastructure
2 17 (10.18%) vCloud
3 12 (7.19%) Active Directory
4 9 (5.39%) Xen
5 7 (4.19%) NFS
6 4 (2.40%) vSphere
6 4 (2.40%) Hyper-V
6 4 (2.40%) XenServer
7 3 (1.80%) Varnish
7 3 (1.80%) VMware ESXi
8 2 (1.20%) Veritas Cluster Server
8 2 (1.20%) Docker
9 1 (0.60%) KVM
9 1 (0.60%) Microsoft Virtual Server
Systems Management
1 107 (64.07%) Puppet
2 69 (41.32%) Opscode Chef
3 54 (32.34%) Nagios
4 39 (23.35%) ZABBIX
5 29 (17.37%) Cacti
6 23 (13.77%) Salt
7 13 (7.78%) Kibana
7 13 (7.78%) Zenoss
8 10 (5.99%) Ansible
8 10 (5.99%) Graylog2
9 9 (5.39%) Red Hat Spacewalk
9 9 (5.39%) Cobbler
10 8 (4.79%) Opsview
11 5 (2.99%) CFEngine
11 5 (2.99%) logstash
12 4 (2.40%) Vagrant
12 4 (2.40%) SCCM
13 3 (1.80%) SCOM
13 3 (1.80%) HAProxy
14 2 (1.20%) Foglight
Vendors
1 92 (55.09%) Red Hat
2 24 (14.37%) VMware
3 22 (13.17%) Rackspace
4 20 (11.98%) Splunk
5 16 (9.58%) Oracle
6 12 (7.19%) Perforce
7 8 (4.79%) SaltStack
7 8 (4.79%) Zend
7 8 (4.79%) Microsoft
7 8 (4.79%) Dell
8 7 (4.19%) HP
8 7 (4.19%) Cisco
8 7 (4.19%) Percona
9 6 (3.59%) Infoblox
9 6 (3.59%) JBoss
9 6 (3.59%) Veritas
10 4 (2.40%) NetApp
10 4 (2.40%) Citrix
10 4 (2.40%) EMC
10 4 (2.40%) New Relic
London
Parallel Consulting
Rate: £400 - £450 per annum
Posted: 6 hours ago
London
TEKsystems
Rate: £300 - £400 per day
Posted: 7 hours ago
London
Square One Resources
Rate: Unspecified
Posted: 8 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
London
Opus Recruitment Solutions Ltd
Rate: Market Rate
Posted: 5 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
London
Austin Fraser Limited
Rate: £350 - £400 per day
Posted: 15 days ago
London
Opus Recruitment Solutions Ltd
Rate: £300 - £350 per day
Posted: 20 days ago
London
Interquest - ITQ Financial - Tunbridge Wells
Rate: £350 - £450 per day
Posted: 21 days ago