The following table provides summary statistics for contract job vacancies advertised in Oxfordshire 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 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
South East / Oxfordshire
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 64 62 62
Rank change year-on-year -2 0  
Contract jobs citing CentOS 8 2 10
As % of all contract IT jobs advertised in Oxfordshire 1.28% 0.34% 1.31%
As % of the Operating Systems category 7.08% 1.32% 5.35%
Number of daily rates quoted 2 2 9
Median daily rate £450 £400 £450
Median daily rate % change year-on-year +12.50% -11.11%  
90% offered a daily rate of more than £410 £400 £375
10% offered a daily rate of more than £490 £400 £491
UK excluding London median daily rate £460 £425 £375
% change year-on-year +8.23% +13.33%  
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 Oxfordshire with a requirement for operating system skills.

Contract Operating System Skills
Oxfordshire
Contract job vacancies with a requirement for operating system skills 113 151 187
As % of all contract IT job vacancies advertised in Oxfordshire 18.02% 25.68% 24.57%
Number of daily rates quoted 61 96 115
Median daily rate £375 £363 £375
Median daily rate % change year-on-year +3.44% -3.33%  
90% offered a daily rate of more than £140 £150 £150
10% offered a daily rate of more than £525 £600 £493
UK excluding London median daily rate £375 £363 £345
% change year-on-year +3.44% +5.07%  
Number of hourly rates quoted 17 15 33
Median hourly rate £17.50 £14.00 £17.00
Median hourly rate % change year-on-year +25.00% -17.64%  
90% offered a hourly rate of more than £10.00 £8.80 £13.35
10% offered a hourly rate of more than £28.70 £22.50 £40.00
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 Oxfordshire

The job posting trend of jobs advertised in Oxfordshire 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 Oxfordshire

CentOS
Contractor Daily Rate Trend in Oxfordshire

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

Contractor daily rate trend for CentOS in Oxfordshire

CentOS
Contract Job Locations in Oxfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the Oxfordshire region over the 3 months to 25 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
Oxford - 8 £450 -
CentOS
South East

For the 6 months to 25 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 Oxfordshire region with a requirement for CentOS.

1 12 (100.00%) Linux
2 8 (66.67%) Ruby
2 8 (66.67%) Red Hat Enterprise Linux
2 8 (66.67%) Bash Shell
3 7 (58.33%) Red Hat
4 6 (50.00%) Python
4 6 (50.00%) VMware
4 6 (50.00%) HP
4 6 (50.00%) Puppet
4 6 (50.00%) DevOps
5 5 (41.67%) Red Hat Satellite
5 5 (41.67%) 3PAR
5 5 (41.67%) SAN
5 5 (41.67%) Nagios
5 5 (41.67%) Symantec
5 5 (41.67%) Virtual Machines
6 3 (25.00%) Continuous Improvement
6 3 (25.00%) SELinux
6 3 (25.00%) HAProxy
6 3 (25.00%) Hyperic
6 3 (25.00%) Amazon AWS
6 3 (25.00%) Ubuntu
6 3 (25.00%) VMware Infrastructure
6 3 (25.00%) Debian
6 3 (25.00%) Apache
7 2 (16.67%) JBoss
7 2 (16.67%) Java
7 2 (16.67%) PostgreSQL
7 2 (16.67%) Git (software)
8 1 (8.33%) RESTful

CentOS
Co-occurring IT Skills in Oxfordshire 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 3 (25.00%) Apache
2 2 (16.67%) JBoss
Cloud Services
1 3 (25.00%) Amazon AWS
2 1 (8.33%) Amazon EC2
2 1 (8.33%) Amazon S3
2 1 (8.33%) AWS CloudFormation
2 1 (8.33%) Google Cloud Platform
2 1 (8.33%) Microsoft Azure
2 1 (8.33%) Route 53
Communications & Networking
1 5 (41.67%) SAN
2 1 (8.33%) HTTP
Database & Business Intelligence
1 2 (16.67%) PostgreSQL
2 1 (8.33%) Apache Cassandra
2 1 (8.33%) Geospatial Data
2 1 (8.33%) MySQL
2 1 (8.33%) NoSQL
Development Applications
1 2 (16.67%) Git (software)
Job Titles
1 9 (75.00%) Administrator
1 9 (75.00%) Systems Administrator
2 5 (41.67%) DevOps Administrator
3 4 (33.33%) Linux Administrator
3 4 (33.33%) Linux Engineer
3 4 (33.33%) Linux Systems Administrator
4 3 (25.00%) Linux Systems Engineer
4 3 (25.00%) Systems Engineer
5 1 (8.33%) Developer
5 1 (8.33%) DevOps Engineer
5 1 (8.33%) Infrastructure Engineer
5 1 (8.33%) Linux DevOps Engineer
5 1 (8.33%) Linux/Unix DevOps
5 1 (8.33%) Network Infrastructure Engineer
5 1 (8.33%) Python Developer
5 1 (8.33%) Software Engineer
5 1 (8.33%) VMware Engineer
Libraries, Frameworks & Software Standards
1 1 (8.33%) PostGIS
1 1 (8.33%) RESTful
1 1 (8.33%) X-Windows
Operating Systems
1 12 (100.00%) Linux
2 8 (66.67%) Red Hat Enterprise Linux
3 3 (25.00%) Debian
3 3 (25.00%) Ubuntu
4 1 (8.33%) HPUX
4 1 (8.33%) Solaris
4 1 (8.33%) SUSE
4 1 (8.33%) Windows
4 1 (8.33%) Windows Server
4 1 (8.33%) Windows Server 2008
4 1 (8.33%) Windows Server 2012
Processes & Methodologies
1 6 (50.00%) DevOps
2 3 (25.00%) Continuous Improvement
3 1 (8.33%) API Development
3 1 (8.33%) Data Analysis
3 1 (8.33%) Microservices
3 1 (8.33%) OO
3 1 (8.33%) OOP
3 1 (8.33%) Software Engineering
Programming Languages
1 8 (66.67%) Bash Shell
1 8 (66.67%) Ruby
2 6 (50.00%) Python
3 2 (16.67%) Java
4 1 (8.33%) C
4 1 (8.33%) C++
4 1 (8.33%) Go
4 1 (8.33%) Rust
4 1 (8.33%) SQL
System Software
1 5 (41.67%) Virtual Machines
2 3 (25.00%) VMware Infrastructure
3 1 (8.33%) Active Directory
3 1 (8.33%) Docker
3 1 (8.33%) VirtualBox
3 1 (8.33%) VMware ESXi
3 1 (8.33%) Xen
Systems Management
1 6 (50.00%) Puppet
2 5 (41.67%) Nagios
2 5 (41.67%) Red Hat Satellite
3 3 (25.00%) HAProxy
3 3 (25.00%) Hyperic
3 3 (25.00%) SELinux
4 1 (8.33%) Ansible
4 1 (8.33%) Kubernetes
4 1 (8.33%) Opscode Chef
Vendors
1 7 (58.33%) Red Hat
2 6 (50.00%) HP
2 6 (50.00%) VMware
3 5 (41.67%) 3PAR
3 5 (41.67%) Symantec
4 1 (8.33%) Google
4 1 (8.33%) Oracle