The following table provides summary statistics for contract job vacancies advertised in the East of England with a requirement for CentOS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CentOS over the 3 months to 25 April 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

CentOS Linux
England / East of England
3 months to
25 Apr 2017
Same period 2016 Same period 2015
Rank 122 118 138
Rank change year-on-year -4 +20  
Contract jobs citing CentOS 9 4 2
As % of all contract IT jobs advertised in the East of England 0.43% 0.15% 0.072%
As % of the Operating Systems category 1.74% 0.71% 0.29%
Number of daily rates quoted 7 2 0
Median daily rate £550 £413 -
Median daily rate % change year-on-year +33.33% -  
UK excluding London median daily rate £475 £425 £363
% change year-on-year +11.76% +17.24%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £17.50 £8.50 -
% change year-on-year +105.88% -  

CentOS is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the East of England with a requirement for operating system skills.

Contract Operating System Skills
East of England
Contract job vacancies with a requirement for operating system skills 517 564 680
As % of all contract IT job vacancies advertised in the East of England 24.57% 21.73% 24.58%
Number of daily rates quoted 304 307 330
Median daily rate £350 £348 £335
Median daily rate % change year-on-year +0.71% +3.73%  
90% offered a daily rate of more than £151 £160 £160
10% offered a daily rate of more than £550 £525 £500
UK excluding London median daily rate £385 £363 £340
% change year-on-year +6.20% +6.61%  
Number of hourly rates quoted 74 84 104
Median hourly rate £17.50 £17.25 £16.00
Median hourly rate % change year-on-year +1.44% +7.81%  
90% offered a hourly rate of more than £13.00 £14.00 £10.00
10% offered a hourly rate of more than £41.00 £47.50 £40.60
UK excluding London median hourly rate £15.50 £16.50 £15.50
% change year-on-year -6.06% +6.45%  

CentOS
Job Vacancy Trend in the East of England

The job posting trend of jobs advertised in the East of England citing CentOS as a proportion of all contract or permanent IT jobs with a match in the Operating Systems category.

Job vacancy trend for CentOS in the East of England

CentOS
Contractor Daily Rate Trend in the East of England

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing CentOS in the East of England.

Contractor daily rate trend for CentOS in the East of England

CentOS
Contractor Daily Rate Histogram in the East of England

The daily rate distribution of IT jobs citing CentOS in the East of England over the 3 months to 25 April 2017.

Contractor daily rate histogram for CentOS in the East of England

CentOS
Contractor Hourly Rate Trend in the East of England

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing CentOS in the East of England.

Contractor hourly rate trend for CentOS in the East of England

CentOS
Contract Job Locations in the East of England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the East of England region over the 3 months to 25 April 2017. 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 Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Cambridgeshire +7 3 £363 -34.09%
Essex -5 3 £563 +104.54%
Hertfordshire - 3 £550 - 4
CentOS
England

For the 6 months to 25 April 2017, 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 East of England region with a requirement for CentOS.

1 11 (100.00%) Linux
2 8 (72.73%) Red Hat Enterprise Linux
2 8 (72.73%) Jenkins
2 8 (72.73%) DevOps
3 7 (63.64%) Continuous Integration
3 7 (63.64%) Configuration Management
4 6 (54.55%) Ubuntu
4 6 (54.55%) Red Hat
4 6 (54.55%) Ansible
5 4 (36.36%) Docker
5 4 (36.36%) Pingdom
5 4 (36.36%) AppDynamics
5 4 (36.36%) PagerDuty
5 4 (36.36%) AWS CloudFormation
5 4 (36.36%) Application Performance Management
5 4 (36.36%) AWS Lambda
5 4 (36.36%) Python
5 4 (36.36%) Opscode Chef
5 4 (36.36%) Amazon DynamoDB
5 4 (36.36%) Bitbucket
5 4 (36.36%) Amazon AWS
5 4 (36.36%) Confluence
5 4 (36.36%) Puppet
5 4 (36.36%) JIRA
5 4 (36.36%) Atlassian
5 4 (36.36%) Performance Management
5 4 (36.36%) Git (software)
6 3 (27.27%) Internet
6 3 (27.27%) TCP/IP
6 3 (27.27%) Java

CentOS
Co-occurring IT Skills in the East of England 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 4 (36.36%) Confluence
2 1 (9.09%) Apache
2 1 (9.09%) Tomcat
2 1 (9.09%) WebSphere
Business Applications
1 2 (18.18%) SAP Oil and Gas
Cloud Services
1 4 (36.36%) Amazon AWS
1 4 (36.36%) AWS CloudFormation
1 4 (36.36%) AWS Lambda
Communications & Networking
1 3 (27.27%) Internet
1 3 (27.27%) TCP/IP
2 2 (18.18%) HTTP
2 2 (18.18%) SSL
3 1 (9.09%) Firewall
Database & Business Intelligence
1 4 (36.36%) Amazon DynamoDB
2 1 (9.09%) Big Data
2 1 (9.09%) Hadoop
Development Applications
1 8 (72.73%) Jenkins
2 4 (36.36%) Bitbucket
2 4 (36.36%) Git (software)
2 4 (36.36%) JIRA
3 1 (9.09%) Hudson
General
1 2 (18.18%) Electronics
1 2 (18.18%) Finance
1 2 (18.18%) Manufacturing
1 2 (18.18%) Marketing
1 2 (18.18%) Telecoms
Job Titles
1 6 (54.55%) DevOps Engineer
2 2 (18.18%) AWS DevOps
2 2 (18.18%) AWS DevOps Engineer
2 2 (18.18%) AWS Engineer
2 2 (18.18%) Consultant
2 2 (18.18%) Lead DevOps
3 1 (9.09%) Administrator
3 1 (9.09%) AIX Consultant
3 1 (9.09%) Linux Administrator
3 1 (9.09%) Linux Consultant
3 1 (9.09%) Linux DevOps Administrator
3 1 (9.09%) Linux Engineer
3 1 (9.09%) Linux Systems Administrator
3 1 (9.09%) Senior Consultant
3 1 (9.09%) Senior DevOps
3 1 (9.09%) Senior DevOps Consultant
3 1 (9.09%) Software Engineer
3 1 (9.09%) Systems Administrator
3 1 (9.09%) VMware Engineer
3 1 (9.09%) Windows Engineer
Libraries, Frameworks & Software Standards
1 1 (9.09%) RabbitMQ
1 1 (9.09%) ZeroMQ
Miscellaneous
1 1 (9.09%) Data Centre
1 1 (9.09%) LPAR
Operating Systems
1 11 (100.00%) Linux
2 8 (72.73%) Red Hat Enterprise Linux
3 6 (54.55%) Ubuntu
4 3 (27.27%) Fedora
5 2 (18.18%) Unix
5 2 (18.18%) Windows
5 2 (18.18%) Windows Server
5 2 (18.18%) Windows Server 2008
5 2 (18.18%) Windows Server 2012
6 1 (9.09%) AIX
Processes & Methodologies
1 8 (72.73%) DevOps
2 7 (63.64%) Configuration Management
2 7 (63.64%) Continuous Integration
3 4 (36.36%) Application Performance Management
3 4 (36.36%) Performance Management
4 3 (27.27%) Continuous Delivery
5 2 (18.18%) Business Intelligence
5 2 (18.18%) Coaching
5 2 (18.18%) Digital Marketing
5 2 (18.18%) Line Management
5 2 (18.18%) Mentoring
5 2 (18.18%) Open Source
5 2 (18.18%) Programme Management
6 1 (9.09%) Agile Software Development
6 1 (9.09%) Continuous Deployment
6 1 (9.09%) High Availability
6 1 (9.09%) Kanban
6 1 (9.09%) Scrum
6 1 (9.09%) Software Engineering
Programming Languages
1 4 (36.36%) Python
2 3 (27.27%) Java
2 3 (27.27%) Perl
3 2 (18.18%) Shell Script
4 1 (9.09%) Bash Shell
4 1 (9.09%) PHP
4 1 (9.09%) Ruby
Qualifications
1 1 (9.09%) SC Cleared
1 1 (9.09%) Security Cleared
System Software
1 4 (36.36%) Docker
2 1 (9.09%) VMware Infrastructure
Systems Management
1 6 (54.55%) Ansible
2 4 (36.36%) Opscode Chef
2 4 (36.36%) Pingdom
2 4 (36.36%) Puppet
3 3 (27.27%) Kubernetes
Vendors
1 6 (54.55%) Red Hat
2 4 (36.36%) AppDynamics
2 4 (36.36%) Atlassian
2 4 (36.36%) PagerDuty
3 2 (18.18%) SAP
3 2 (18.18%) VMware
4 1 (9.09%) IBM