The table below looks at the statistics 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 3 March 2015 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
3 Mar 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 177 180 193
Rank change year-on-year
+3 +13
Contract jobs citing CentOS 8 15 9
As % of all contract IT jobs located in the City of London 0.16% 0.26% 0.16%
As % of the Operating Systems category 0.71% 1.28% 0.71%
Number of daily rates quoted 5 8 6
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£475 £425 £331
Average daily rate % change year-on-year
+11.76% +28.30%
90% offered a daily rate of more than £323 £210 £120
10% offered a daily rate of more than £535 £450 £500
UK excluding London average daily rate £375 £375 £325
% change year-on-year
- +15.38%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate £47.50 £35.00 £32.50
% change year-on-year
+35.71% +7.69%
CentOS
London

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

Operating Systems Category
City of London
Contract IT job ads with a match in the
Operating Systems category
1131 1174 1263
As % of all contract IT jobs located in the City of London 22.09% 20.01% 21.79%
Number of daily rates quoted 868 799 841
Average daily rate £425 £400 £400
Average daily rate % change year-on-year
+6.25% -
90% offered a daily rate of more than £180 £188 £210
10% offered a daily rate of more than £588 £600 £550
UK excluding London average daily rate £340 £313 £320
% change year-on-year
+8.80% -2.34%
Number of hourly rates quoted 36 51 79
Average hourly rate £17.87 £17.50 £19.00
Average hourly rate % change year-on-year
+2.08% -7.89%
90% offered a hourly rate of more than £13.00 £13.50 £12.50
10% offered a hourly rate of more than £105.00 £31.00 £135.00
UK excluding London average hourly rate £15.00 £15.50 £16.20
% change year-on-year
-3.22% -4.32%

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 3 March 2015.

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 3 March 2015, 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 28 (90.32%) Linux
2 18 (58.06%) Jenkins
3 17 (54.84%) Puppet
3 17 (54.84%) Agile Software Development
4 16 (51.61%) Ubuntu
4 16 (51.61%) Red Hat
5 15 (48.39%) Git (software)
5 15 (48.39%) DevOps
6 14 (45.16%) Red Hat Enterprise Linux
7 13 (41.94%) VMware
7 13 (41.94%) Java
8 12 (38.71%) Ruby
8 12 (38.71%) Continuous Integration
9 11 (35.48%) Maven
9 11 (35.48%) MySQL
9 11 (35.48%) Configuration Management
10 10 (32.26%) Python
11 9 (29.03%) Perl
11 9 (29.03%) Bash Shell
12 8 (25.81%) DNS
12 8 (25.81%) VMware Infrastructure
13 7 (22.58%) JavaScript
13 7 (22.58%) Cobbler
14 6 (19.35%) Web Services
14 6 (19.35%) Apache
14 6 (19.35%) Windows
15 5 (16.13%) HTML
15 5 (16.13%) CSS
15 5 (16.13%) SQL
15 5 (16.13%) Load Balancing

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

For the 6 months to 3 March 2015, 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 6 (19.35%) Apache
2 4 (12.90%) OpenStack
3 2 (6.45%) Tomcat
3 2 (6.45%) IIS
3 2 (6.45%) nginx
4 1 (3.23%) Moodle
4 1 (3.23%) Node.js
4 1 (3.23%) JBoss
4 1 (3.23%) MS Exchange
4 1 (3.23%) GlassFish
4 1 (3.23%) Jetty
4 1 (3.23%) Elasticsearch
Applications
1 2 (6.45%) MS Office
2 1 (3.23%) MS Excel
2 1 (3.23%) Photoshop
Cloud Services
1 2 (6.45%) Amazon AWS
2 1 (3.23%) Rackspace Cloud
2 1 (3.23%) IaaS
Communications & Networking
1 8 (25.81%) DNS
2 4 (12.90%) Wi-Fi
3 2 (6.45%) Internet
3 2 (6.45%) DVB
3 2 (6.45%) HTTP
4 1 (3.23%) SNMP
4 1 (3.23%) VPN
4 1 (3.23%) LDAP
4 1 (3.23%) DHCP
4 1 (3.23%) SSL
4 1 (3.23%) IPv6
4 1 (3.23%) SAN
4 1 (3.23%) Firewall
4 1 (3.23%) IPsec
4 1 (3.23%) IMAP
4 1 (3.23%) OpenLDAP
4 1 (3.23%) OpenVPN
Database & Business Intelligence
1 11 (35.48%) MySQL
2 4 (12.90%) MongoDB
3 3 (9.68%) NoSQL
3 3 (9.68%) SQL Server
3 3 (9.68%) PostgreSQL
4 2 (6.45%) Apache Cassandra
4 2 (6.45%) SQL Server 2012
4 2 (6.45%) Couchbase
5 1 (3.23%) Redis
5 1 (3.23%) Big Data
5 1 (3.23%) SQL Server Reporting Services
5 1 (3.23%) SQL Server Integration Services
5 1 (3.23%) CouchDB
Development Applications
1 18 (58.06%) Jenkins
2 15 (48.39%) Git (software)
3 11 (35.48%) Maven
4 5 (16.13%) Subversion
5 4 (12.90%) Selenium
5 4 (12.90%) Grunt
6 1 (3.23%) Liquibase
6 1 (3.23%) Mercurial
6 1 (3.23%) Gradle
6 1 (3.23%) Ant
General
1 2 (6.45%) Finance
1 2 (6.45%) Games
2 1 (3.23%) Banking
Job Titles
1 11 (35.48%) DevOps Engineer
2 7 (22.58%) Linux DevOps Engineer
3 6 (19.35%) Developer
4 5 (16.13%) Administrator
4 5 (16.13%) Linux Administrator
5 4 (12.90%) Systems Engineer
6 3 (9.68%) Java Developer
7 2 (6.45%) Senior DevOps Engineer
7 2 (6.45%) DevOps Administrator
7 2 (6.45%) Systems Administrator
7 2 (6.45%) Linux Systems Administrator
8 1 (3.23%) Java Software Engineer
8 1 (3.23%) IT Support Engineer
8 1 (3.23%) Server Engineer
8 1 (3.23%) PHP Developer
8 1 (3.23%) Applications Architect
8 1 (3.23%) MySQL DBA
8 1 (3.23%) IT Support
8 1 (3.23%) Moodle Developer
8 1 (3.23%) DBA
Libraries, Frameworks & Software Standards
1 6 (19.35%) Web Services
2 5 (16.13%) HTML
2 5 (16.13%) CSS
2 5 (16.13%) Spring
2 5 (16.13%) HTML5
2 5 (16.13%) REST
3 4 (12.90%) jQuery
3 4 (12.90%) XHTML
3 4 (12.90%) LAMP
3 4 (12.90%) Backbone.js
3 4 (12.90%) AngularJS
4 3 (9.68%) MCollective
4 3 (9.68%) Hibernate
4 3 (9.68%) JPA
4 3 (9.68%) JSON
5 2 (6.45%) Middleware
6 1 (3.23%) Twitter Bootstrap
6 1 (3.23%) Sass
6 1 (3.23%) LESS
6 1 (3.23%) Underscore.js
Miscellaneous
1 4 (12.90%) W3C
1 4 (12.90%) Open Source
2 3 (9.68%) Replication
2 3 (9.68%) Clustering
2 3 (9.68%) Data Structures
3 2 (6.45%) Digital Media
3 2 (6.45%) Client/Server
3 2 (6.45%) Interactive TV
4 1 (3.23%) E-Learning
4 1 (3.23%) Algorithms
Operating Systems
1 28 (90.32%) Linux
2 16 (51.61%) Ubuntu
3 14 (45.16%) Red Hat Enterprise Linux
4 6 (19.35%) Windows
5 3 (9.68%) UNIX
5 3 (9.68%) VMS
5 3 (9.68%) Debian
5 3 (9.68%) Windows Server 2008
6 2 (6.45%) Windows Server 2012
6 2 (6.45%) SUSE Linux Enterprise Server
7 1 (3.23%) Mac OS
7 1 (3.23%) Apple iOS
Processes & Methodologies
1 17 (54.84%) Agile Software Development
2 15 (48.39%) DevOps
3 12 (38.71%) Continuous Integration
4 11 (35.48%) Configuration Management
5 5 (16.13%) Kanban
5 5 (16.13%) Load Balancing
6 4 (12.90%) Performance Tuning
6 4 (12.90%) Performance Monitoring
6 4 (12.90%) Kalman Filter
6 4 (12.90%) Performance Testing
6 4 (12.90%) OO
7 3 (9.68%) Web Development
8 2 (6.45%) Scrum
8 2 (6.45%) Change Management
8 2 (6.45%) ITIL
9 1 (3.23%) OOA/OOD
9 1 (3.23%) Service Delivery
9 1 (3.23%) E-Commerce
9 1 (3.23%) OOD
9 1 (3.23%) SOA
Programming Languages
1 13 (41.94%) Java
2 12 (38.71%) Ruby
3 10 (32.26%) Python
4 9 (29.03%) Perl
4 9 (29.03%) Bash Shell
5 7 (22.58%) JavaScript
6 5 (16.13%) SQL
7 4 (12.90%) Shell Script
8 3 (9.68%) PHP
9 1 (3.23%) T-SQL
9 1 (3.23%) PHP5
Qualifications
1 1 (3.23%) DV Cleared
1 1 (3.23%) Security Cleared
1 1 (3.23%) VCP4
Quality Assurance & Compliance
1 1 (3.23%) PCI DSS
System Software
1 8 (25.81%) VMware Infrastructure
2 2 (6.45%) Hyper-V
2 2 (6.45%) Active Directory
2 2 (6.45%) vSphere
2 2 (6.45%) KVM
3 1 (3.23%) Docker
3 1 (3.23%) VMware ESXi
3 1 (3.23%) FreeRADIUS
3 1 (3.23%) vCloud
3 1 (3.23%) NFS
3 1 (3.23%) XenServer
Systems Management
1 17 (54.84%) Puppet
2 7 (22.58%) Cobbler
3 5 (16.13%) Red Hat Spacewalk
4 4 (12.90%) Opscode Chef
4 4 (12.90%) Ansible
5 2 (6.45%) Nagios
5 2 (6.45%) ZABBIX
6 1 (3.23%) Cacti
Vendors
1 16 (51.61%) Red Hat
2 13 (41.94%) VMware
3 4 (12.90%) EMC
4 3 (9.68%) Microsoft
5 1 (3.23%) Cisco
5 1 (3.23%) IBM
5 1 (3.23%) Google
5 1 (3.23%) Zend
5 1 (3.23%) Percona
5 1 (3.23%) Facebook
5 1 (3.23%) Twitter
5 1 (3.23%) Rackspace
City of London
Venturi
Rate: £250 - £325 per annum
Posted: 17 days ago