The first table below looks at the demand for CentOS skills in IT contracts advertised for the City of London region. Included is a guide to the average contractor rates offered in IT contracts that have cited CentOS over the 3 months to 29 July 2014 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all of the Operating Systems category for the City of London region.

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
29 Jul 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 182 203 199
Rank change year-on-year
+21 -4
Contract jobs citing CentOS 13 16 20
As % of all contract IT jobs located in the City of London 0.22% 0.23% 0.26%
As % of the Operating Systems category 1.01% 1.10% 1.29%
Number of daily rates quoted 13 13 15
Average daily rate
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of your Daily Rate
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£450 £310 £350
Average daily rate % change year-on-year
+45.16% -11.42%
90% offered a daily rate of more than £309 £175 £291
10% offered a daily rate of more than £500 £415 £390
UK excluding London average daily rate £350 £369 £300
% change year-on-year
-5.08% +22.91%
Number of hourly rates quoted 0 1 0
Average hourly rate - £54.00 -
UK excluding London average hourly rate £16.75 £36.00 -
% change year-on-year
-53.47% -
Operating Systems Category
City of London
Contract IT job ads with a match in the
Operating Systems category
1286 1455 1553
As % of all contract IT jobs located in the City of London 22.08% 20.47% 19.83%
Number of daily rates quoted 938 988 976
Average daily rate £400 £400 £388
Average daily rate % change year-on-year
- +3.22%
90% offered a daily rate of more than £188 £220 £221
10% offered a daily rate of more than £575 £550 £550
UK excluding London average daily rate £313 £325 £325
% change year-on-year
-3.84% -
Number of hourly rates quoted 55 84 91
Average hourly rate £18.50 £19.60 £20.00
Average hourly rate % change year-on-year
-5.61% -2.00%
90% offered a hourly rate of more than £12.50 £12.65 £12.50
10% offered a hourly rate of more than £33.00 £54.00 £29.00
UK excluding London average hourly rate £15.00 £16.25 £17.00
% change year-on-year
-7.69% -4.41%
CentOS
London

CentOS
Jobs Demand Trend in the City of London

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

CentOS Jobs Demand Trend in the City of London

CentOS
Daily Rate Trend in the City of London

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

CentOS Daily Rate Trend in the City of London

CentOS
Daily Rate Histogram in the City of London

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the City of London region over the 3 months to 29 July 2014.

CentOS Daily Rate Histogram in the City of London

CentOS
Hourly Rate Trend in the City of London

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

CentOS Hourly Rate Trend in the City of London

CentOS
Top 30 Related IT Skills in the City of London

For the 6 months to 29 July 2014, IT contractor jobs across the City of 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 23 (92.00%) Linux
2 20 (80.00%) Red Hat Enterprise Linux
3 14 (56.00%) Red Hat
3 14 (56.00%) DevOps
4 13 (52.00%) Bash Shell
4 13 (52.00%) Puppet
5 11 (44.00%) Git (software)
5 11 (44.00%) Ruby
5 11 (44.00%) Ubuntu
6 9 (36.00%) Jenkins
7 8 (32.00%) Python
8 7 (28.00%) Apache
8 7 (28.00%) Java
8 7 (28.00%) PHP
8 7 (28.00%) MySQL
8 7 (28.00%) UNIX
8 7 (28.00%) Continuous Integration
9 6 (24.00%) Maven
9 6 (24.00%) Perl
9 6 (24.00%) Opscode Chef
9 6 (24.00%) sed
10 5 (20.00%) SQL
10 5 (20.00%) Oracle
10 5 (20.00%) Finance
10 5 (20.00%) SSH
11 4 (16.00%) Learning Management System
11 4 (16.00%) Moodle
11 4 (16.00%) Performance Testing
11 4 (16.00%) Regular Expression
11 4 (16.00%) vCloud

CentOS
Top Related IT Skills in the City of London by Category

For the 6 months to 29 July 2014, IT contractor jobs across the City of 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 7 (28.00%) Apache
2 4 (16.00%) Moodle
3 2 (8.00%) Confluence
3 2 (8.00%) OpenStack
4 1 (4.00%) Apache Pig
4 1 (4.00%) WebLogic
4 1 (4.00%) Oracle SOA Suite
4 1 (4.00%) Tomcat
4 1 (4.00%) nginx
Cloud Services
1 3 (12.00%) Cloud Computing
2 2 (8.00%) Amazon AWS
2 2 (8.00%) Rackspace Cloud
2 2 (8.00%) GitHub
Communications & Networking
1 5 (20.00%) SSH
2 4 (16.00%) Ethernet
2 4 (16.00%) DNS
3 2 (8.00%) TCP/IP
4 1 (4.00%) LDAP
4 1 (4.00%) HTTP
4 1 (4.00%) Internet
4 1 (4.00%) OSPF
4 1 (4.00%) BGP
4 1 (4.00%) BIG-IP
4 1 (4.00%) iSCSI
Database & Business Intelligence
1 7 (28.00%) MySQL
2 3 (12.00%) Oracle Database
2 3 (12.00%) Oracle Database 11g
3 2 (8.00%) NoSQL
3 2 (8.00%) Oracle Database 10g
4 1 (4.00%) Oracle Reports
4 1 (4.00%) Data Mining
4 1 (4.00%) HBase
4 1 (4.00%) Redis
4 1 (4.00%) Big Data
4 1 (4.00%) Hadoop
4 1 (4.00%) CouchDB
4 1 (4.00%) MongoDB
Development Applications
1 11 (44.00%) Git (software)
2 9 (36.00%) Jenkins
3 6 (24.00%) Maven
4 2 (8.00%) JIRA
4 2 (8.00%) Subversion
4 2 (8.00%) FishEye
5 1 (4.00%) Behat
5 1 (4.00%) DbUnit
5 1 (4.00%) PHPUnit
General
1 5 (20.00%) Finance
2 2 (8.00%) Games
3 1 (4.00%) Advertising
Job Titles
1 8 (32.00%) DevOps Engineer
2 4 (16.00%) Administrator
2 4 (16.00%) Analyst
2 4 (16.00%) Systems Administrator
3 3 (12.00%) Systems Engineer
3 3 (12.00%) Linux Engineer
3 3 (12.00%) Developer
3 3 (12.00%) Senior DevOps Engineer
4 1 (4.00%) Architect
4 1 (4.00%) Cloud Engineer
4 1 (4.00%) AIX Engineer
4 1 (4.00%) Platform Engineer
4 1 (4.00%) Hadoop Developer
4 1 (4.00%) Applications Developer
4 1 (4.00%) Senior Developer
4 1 (4.00%) Systems Support
4 1 (4.00%) Support Engineer
4 1 (4.00%) UNIX Systems Administrator
4 1 (4.00%) UNIX Administrator
4 1 (4.00%) Linux Systems Administrator
Libraries, Frameworks & Software Standards
1 4 (16.00%) LAMP
1 4 (16.00%) Regular Expression
1 4 (16.00%) MCollective
2 2 (8.00%) Web Services
3 1 (4.00%) Symfony
3 1 (4.00%) Zend Framework
3 1 (4.00%) Yii
3 1 (4.00%) Laravel
Miscellaneous
1 4 (16.00%) E-Learning
1 4 (16.00%) Learning Management System
2 2 (8.00%) Replication
2 2 (8.00%) Online Games
Operating Systems
1 23 (92.00%) Linux
2 20 (80.00%) Red Hat Enterprise Linux
3 11 (44.00%) Ubuntu
4 7 (28.00%) UNIX
5 4 (16.00%) Fedora
6 3 (12.00%) Debian
7 2 (8.00%) AIX
7 2 (8.00%) SUSE
7 2 (8.00%) Oracle Linux
8 1 (4.00%) Windows
Processes & Methodologies
1 14 (56.00%) DevOps
2 7 (28.00%) Continuous Integration
3 4 (16.00%) Build Automation
3 4 (16.00%) Performance Tuning
3 4 (16.00%) Data Modelling
3 4 (16.00%) Performance Testing
4 3 (12.00%) Scrum
4 3 (12.00%) E-Commerce
5 2 (8.00%) Low Latency
5 2 (8.00%) Continuous Improvement
5 2 (8.00%) ERD
5 2 (8.00%) Agile Software Development
5 2 (8.00%) Configuration Management
5 2 (8.00%) Enterprise Architecture
5 2 (8.00%) GAP Analysis
5 2 (8.00%) Data Security
5 2 (8.00%) Workflow
5 2 (8.00%) Migration
6 1 (4.00%) SOA
6 1 (4.00%) OOP
Programming Languages
1 13 (52.00%) Bash Shell
2 11 (44.00%) Ruby
3 8 (32.00%) Python
4 7 (28.00%) Java
4 7 (28.00%) PHP
5 6 (24.00%) Perl
5 6 (24.00%) sed
6 5 (20.00%) SQL
7 4 (16.00%) Shell Script
8 2 (8.00%) AWK
Qualifications
1 1 (4.00%) CCNA
1 1 (4.00%) Cisco Certification
1 1 (4.00%) SC Cleared
1 1 (4.00%) Security Cleared
Quality Assurance & Compliance
1 2 (8.00%) QA
System Software
1 4 (16.00%) vCloud
2 3 (12.00%) VMware Infrastructure
3 2 (8.00%) XenServer
3 2 (8.00%) NFS
3 2 (8.00%) VMware ESX
3 2 (8.00%) Xen
3 2 (8.00%) Oracle RAC
3 2 (8.00%) KVM
3 2 (8.00%) VMware ESXi
4 1 (4.00%) Active Directory
4 1 (4.00%) Varnish
4 1 (4.00%) Hyper-V
Systems Management
1 13 (52.00%) Puppet
2 6 (24.00%) Opscode Chef
3 2 (8.00%) Ansible
3 2 (8.00%) Nagios
4 1 (4.00%) Capistrano
Vendors
1 14 (56.00%) Red Hat
2 5 (20.00%) Oracle
3 3 (12.00%) Citrix
3 3 (12.00%) VMware
4 2 (8.00%) Cisco
4 2 (8.00%) Rackspace
4 2 (8.00%) New Relic
5 1 (4.00%) HP
5 1 (4.00%) NetApp
5 1 (4.00%) Zend
5 1 (4.00%) F5
5 1 (4.00%) Tealeaf
5 1 (4.00%) Splunk
City, London
Senitor Associates
Rate: £240 - £300 per day
Posted: Yesterday