The table below looks at the statistics for CentOS skills in IT contracts advertised for the Cambridge region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 31 May 2016 with a comparison to the same period over 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.

3 months to
31 May 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 41 45 41
Rank change year-on-year
+4 -4
Contract jobs citing CentOS 3 2 5
As % of all contract IT jobs located in Cambridge 0.84% 0.52% 1.34%
As % of the Operating Systems category 2.38% 1.48% 4.81%
Number of daily rates quoted 2 0 3
Median daily rate £413 - £400
UK excluding London median daily rate £425 £375 £350
% change year-on-year
+13.33% +7.14%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £55.00 - £16.75
CentOS
Cambridgeshire

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

Operating Systems Category
Cambridge
Contract IT job ads with a match in the
Operating Systems category
126 135 104
As % of all contract IT jobs located in Cambridge 35.39% 35.16% 27.81%
Number of daily rates quoted 78 92 61
Median daily rate £350 £325 £388
Median daily rate % change year-on-year
+7.69% -16.12%
90% offered a daily rate of more than £247 £220 £213
10% offered a daily rate of more than £519 £410 £455
UK excluding London median daily rate £365 £345 £313
% change year-on-year
+5.79% +10.40%
Number of hourly rates quoted 7 16 11
Median hourly rate £21.00 £17.00 £22.50
Median hourly rate % change year-on-year
+23.52% -24.44%
90% offered a hourly rate of more than £17.50 £13.50 £12.00
10% offered a hourly rate of more than £47.50 £39.00 £37.50
UK excluding London median hourly rate £16.50 £16.16 £15.50
% change year-on-year
+2.10% +4.25%

CentOS
Jobs Demand Trend in Cambridge

The demand trend of contract jobs across the Cambridge region citing CentOS as a proportion of all IT contracts with a match in the Operating Systems category.

CentOS Jobs Demand Trend in Cambridge

CentOS
Daily Rate Trend in Cambridge

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

CentOS Daily Rate Trend in Cambridge

CentOS
Hourly Rate Trend in Cambridge

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

CentOS Hourly Rate Trend in Cambridge

CentOS
Top 30 Related IT Skills in Cambridge

For the 6 months to 31 May 2016, IT contractor jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Cambridge region with a requirement for CentOS.

1 4 (100.00%) MySQL
1 4 (100.00%) Linux
1 4 (100.00%) Configuration Management
1 4 (100.00%) Puppet
1 4 (100.00%) DevOps
2 3 (75.00%) Atlassian Bamboo
2 3 (75.00%) Python
2 3 (75.00%) Red Hat
2 3 (75.00%) Nagios
2 3 (75.00%) Agile Software Development
2 3 (75.00%) DNS
3 2 (50.00%) Windows
3 2 (50.00%) Java
3 2 (50.00%) JavaScript
3 2 (50.00%) Firewall
3 2 (50.00%) Continuous Integration
3 2 (50.00%) Ruby
3 2 (50.00%) Load Balancing
3 2 (50.00%) Git (software)
3 2 (50.00%) nginx
3 2 (50.00%) Opscode Chef
3 2 (50.00%) Open Source
3 2 (50.00%) Docker
3 2 (50.00%) LogRhythm
3 2 (50.00%) Jenkins
3 2 (50.00%) LEMP Stack
4 1 (25.00%) Octopus Deploy
4 1 (25.00%) Kalman Filter
4 1 (25.00%) AppDynamics
4 1 (25.00%) iptables

CentOS
Top Related IT Skills in Cambridge by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 2 (50.00%) nginx
2 1 (25.00%) Apache
2 1 (25.00%) IIS
2 1 (25.00%) Tomcat
Cloud Services
1 1 (25.00%) Amazon AWS
1 1 (25.00%) Microsoft Azure
Communications & Networking
1 3 (75.00%) DNS
2 2 (50.00%) Firewall
3 1 (25.00%) SAN
3 1 (25.00%) SSL
3 1 (25.00%) TCP/IP
3 1 (25.00%) WAN
Database & Business Intelligence
1 4 (100.00%) MySQL
2 1 (25.00%) NoSQL
Development Applications
1 3 (75.00%) Atlassian Bamboo
2 2 (50.00%) Git (software)
2 2 (50.00%) Jenkins
3 1 (25.00%) Cucumber
3 1 (25.00%) Hudson
3 1 (25.00%) JIRA
3 1 (25.00%) Maven
3 1 (25.00%) Octopus Deploy
3 1 (25.00%) Selenium
3 1 (25.00%) Subversion
3 1 (25.00%) Vagrant
Job Titles
1 3 (75.00%) DevOps Engineer
2 1 (25.00%) Administrator
2 1 (25.00%) Lead DevOps Engineer
2 1 (25.00%) Linux DevOps Engineer
2 1 (25.00%) Linux Engineer
2 1 (25.00%) Linux/Unix DevOps
2 1 (25.00%) Senior DevOps Engineer
2 1 (25.00%) Systems Administrator
Libraries, Frameworks & Software Standards
1 2 (50.00%) LEMP Stack
2 1 (25.00%) HTML
2 1 (25.00%) HTML5
2 1 (25.00%) LAMP
2 1 (25.00%) Spring
2 1 (25.00%) Spring Boot
2 1 (25.00%) Web Services
Miscellaneous
1 1 (25.00%) Data Centre
Operating Systems
1 4 (100.00%) Linux
2 2 (50.00%) Windows
3 1 (25.00%) Red Hat Enterprise Linux
3 1 (25.00%) Solaris
3 1 (25.00%) Ubuntu
3 1 (25.00%) Unix
3 1 (25.00%) Windows Server
Processes & Methodologies
1 4 (100.00%) Configuration Management
1 4 (100.00%) DevOps
2 3 (75.00%) Agile Software Development
3 2 (50.00%) Continuous Integration
3 2 (50.00%) Load Balancing
3 2 (50.00%) Open Source
4 1 (25.00%) BDD
4 1 (25.00%) Change Control
4 1 (25.00%) Data Management
4 1 (25.00%) Disaster Recovery
4 1 (25.00%) High Availability
4 1 (25.00%) Incident Management
4 1 (25.00%) ITIL
4 1 (25.00%) Kalman Filter
4 1 (25.00%) Scrum
4 1 (25.00%) Software Delivery
4 1 (25.00%) TDD
Programming Languages
1 3 (75.00%) Python
2 2 (50.00%) Java
2 2 (50.00%) JavaScript
2 2 (50.00%) Ruby
3 1 (25.00%) Perl
3 1 (25.00%) PL/SQL
3 1 (25.00%) Shell Script
3 1 (25.00%) SQL
System Software
1 2 (50.00%) Docker
2 1 (25.00%) iptables
2 1 (25.00%) Postfix
2 1 (25.00%) Sendmail
2 1 (25.00%) vSphere
Systems Management
1 4 (100.00%) Puppet
2 3 (75.00%) Nagios
3 2 (50.00%) Opscode Chef
4 1 (25.00%) Ansible
4 1 (25.00%) Cobbler
4 1 (25.00%) OSSEC
4 1 (25.00%) Red Hat Satellite
Vendors
1 3 (75.00%) Red Hat
2 2 (50.00%) LogRhythm
3 1 (25.00%) AppDynamics
3 1 (25.00%) EMC
3 1 (25.00%) HP
3 1 (25.00%) Microsoft
3 1 (25.00%) New Relic
3 1 (25.00%) Oracle
3 1 (25.00%) ServiceNow
3 1 (25.00%) SolarWinds
3 1 (25.00%) Splunk
3 1 (25.00%) TippingPoint