The following table provides summary statistics for contract job vacancies advertised in the East Midlands 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 26 June 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 Midlands
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 99 89 93
Rank change year-on-year -10 +4  
Contract jobs citing CentOS 3 5 5
As % of all contract IT jobs advertised in the East Midlands 0.19% 0.33% 0.31%
As % of the Operating Systems category 0.88% 1.76% 1.40%
Number of daily rates quoted 1 4 3
Median daily rate £425 £228 £407
Median daily rate % change year-on-year +86.81% -44.10%  
UK excluding London median daily rate £460 £425 £360
% change year-on-year +8.23% +18.05%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £47.50 £55.00 -
% change year-on-year -13.63% -  

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 Midlands with a requirement for operating system skills.

Contract Operating System Skills
East Midlands
Contract job vacancies with a requirement for operating system skills 340 284 356
As % of all contract IT job vacancies advertised in the East Midlands 22.09% 18.72% 22.42%
Number of daily rates quoted 188 156 165
Median daily rate £338 £400 £323
Median daily rate % change year-on-year -15.62% +24.03%  
90% offered a daily rate of more than £125 £225 £200
10% offered a daily rate of more than £451 £615 £425
UK excluding London median daily rate £375 £363 £345
% change year-on-year +3.44% +5.07%  
Number of hourly rates quoted 37 32 36
Median hourly rate £13.00 £14.00 £13.50
Median hourly rate % change year-on-year -7.14% +3.70%  
90% offered a hourly rate of more than £11.17 £11.50 £10.20
10% offered a hourly rate of more than £40.00 £20.00 £30.00
UK excluding London median hourly rate £15.50 £17.00 £16.20
% change year-on-year -8.82% +4.93%  

CentOS
Job Vacancy Trend in the East Midlands

The job posting trend of jobs advertised in the East Midlands 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 Midlands

CentOS
Contractor Daily Rate Trend in the East Midlands

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

Contractor daily rate trend for CentOS in the East Midlands

CentOS
Contract Job Locations in the East Midlands

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 Midlands region over the 3 months to 26 June 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
Northamptonshire +2 2 £425 -
Nottinghamshire -6 1 - - 1
CentOS
England

For the 6 months to 26 June 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 Midlands region with a requirement for CentOS.

1 6 (100.00%) Linux
2 4 (66.67%) Red Hat
3 3 (50.00%) MySQL
3 3 (50.00%) VMware
3 3 (50.00%) Red Hat Enterprise Linux
4 2 (33.33%) Virtual Machines
4 2 (33.33%) MongoDB
4 2 (33.33%) Capacity Management
4 2 (33.33%) Agile Software Development
4 2 (33.33%) Ubuntu
4 2 (33.33%) SC Cleared
4 2 (33.33%) DV Cleared
4 2 (33.33%) Security Cleared
4 2 (33.33%) Git (software)
4 2 (33.33%) Performance Tuning
4 2 (33.33%) Microsoft
4 2 (33.33%) Microsoft Office
4 2 (33.33%) Web Services
4 2 (33.33%) ITIL
5 1 (16.67%) Unix
5 1 (16.67%) Windows
5 1 (16.67%) JUnit
5 1 (16.67%) Java
5 1 (16.67%) J2EE
5 1 (16.67%) Apple
5 1 (16.67%) Nagios
5 1 (16.67%) Apache
5 1 (16.67%) Python
5 1 (16.67%) Eclipse
5 1 (16.67%) IntelliJ

CentOS
Co-occurring IT Skills in the East Midlands 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 1 (16.67%) Apache
Applications
1 2 (33.33%) Microsoft Office
Cloud Services
1 1 (16.67%) Amazon AWS
1 1 (16.67%) Amazon EC2
1 1 (16.67%) Amazon S3
1 1 (16.67%) AWS CloudFormation
1 1 (16.67%) Cloud Computing
1 1 (16.67%) IaaS
1 1 (16.67%) Microsoft Azure
1 1 (16.67%) PaaS
Communications & Networking
1 1 (16.67%) DNS
1 1 (16.67%) Firewall
1 1 (16.67%) SAN
1 1 (16.67%) TCP/IP
Database & Business Intelligence
1 3 (50.00%) MySQL
2 2 (33.33%) MongoDB
3 1 (16.67%) Relational Database
Development Applications
1 2 (33.33%) Git (software)
2 1 (16.67%) Bower
2 1 (16.67%) Eclipse
2 1 (16.67%) gulp
2 1 (16.67%) IntelliJ
2 1 (16.67%) Jenkins
2 1 (16.67%) JUnit
2 1 (16.67%) Karma Test Runner
2 1 (16.67%) Maven
2 1 (16.67%) Mockito
2 1 (16.67%) Protractor
Job Titles
1 3 (50.00%) Administrator
1 3 (50.00%) Linux Administrator
1 3 (50.00%) Linux Systems Administrator
1 3 (50.00%) Systems Administrator
2 1 (16.67%) AWS DevOps
2 1 (16.67%) AWS DevOps Engineer
2 1 (16.67%) AWS Engineer
2 1 (16.67%) Developer
2 1 (16.67%) DevOps Engineer
2 1 (16.67%) Java Developer
2 1 (16.67%) Linux Specialist
2 1 (16.67%) Operations Engineer
2 1 (16.67%) VMware Specialist
Libraries, Frameworks & Software Standards
1 2 (33.33%) Web Services
2 1 (16.67%) AngularJS
2 1 (16.67%) boto
2 1 (16.67%) D3.js
2 1 (16.67%) Hibernate
2 1 (16.67%) J2EE
2 1 (16.67%) JavaFX
2 1 (16.67%) RabbitMQ
2 1 (16.67%) REST
2 1 (16.67%) Spring
Miscellaneous
1 1 (16.67%) Public Cloud
1 1 (16.67%) Replication
Operating Systems
1 6 (100.00%) Linux
2 3 (50.00%) Red Hat Enterprise Linux
3 2 (33.33%) Ubuntu
4 1 (16.67%) Debian
4 1 (16.67%) Unix
4 1 (16.67%) Windows
Processes & Methodologies
1 2 (33.33%) Agile Software Development
1 2 (33.33%) Capacity Management
1 2 (33.33%) ITIL
1 2 (33.33%) Performance Tuning
2 1 (16.67%) Auto-Scaling
2 1 (16.67%) DevOps
2 1 (16.67%) High Availability
2 1 (16.67%) Infrastructure Management
2 1 (16.67%) ITIL V2
2 1 (16.67%) ITIL V3
2 1 (16.67%) ITSM
2 1 (16.67%) Scrum
2 1 (16.67%) SDLC
2 1 (16.67%) Service Management
2 1 (16.67%) Unit Testing
2 1 (16.67%) User Stories
2 1 (16.67%) Virtual Environments
Programming Languages
1 1 (16.67%) Java
1 1 (16.67%) Python
Qualifications
1 2 (33.33%) DV Cleared
1 2 (33.33%) SC Cleared
1 2 (33.33%) Security Cleared
2 1 (16.67%) VMware Certified Professional (VCP)
System Software
1 2 (33.33%) Virtual Machines
2 1 (16.67%) Docker
2 1 (16.67%) Hyper-V
2 1 (16.67%) vCloud
2 1 (16.67%) VMware ESXi
2 1 (16.67%) VMware Infrastructure
2 1 (16.67%) vSphere
Systems Management
1 1 (16.67%) Ansible
1 1 (16.67%) Nagios
1 1 (16.67%) OVSD
1 1 (16.67%) vMotion
Vendors
1 4 (66.67%) Red Hat
2 3 (50.00%) VMware
3 2 (33.33%) Microsoft
4 1 (16.67%) Apple
4 1 (16.67%) Google
4 1 (16.67%) HP
4 1 (16.67%) Veeam