The following table provides summary statistics for contract job vacancies advertised in Gloucestershire 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
South West / Gloucestershire
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 43 51 49
Rank change year-on-year +8 -2  
Contract jobs citing CentOS 2 1 2
As % of all contract IT jobs advertised in Gloucestershire 0.61% 0.21% 0.45%
As % of the Operating Systems category 2.47% 0.75% 1.36%
Number of daily rates quoted 0 1 0
Median daily rate - £525 -
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 Gloucestershire with a requirement for operating system skills.

Contract Operating System Skills
Gloucestershire
Contract job vacancies with a requirement for operating system skills 81 133 147
As % of all contract IT job vacancies advertised in Gloucestershire 24.55% 28.12% 33.18%
Number of daily rates quoted 36 69 103
Median daily rate £210 £400 £410
Median daily rate % change year-on-year -47.50% -2.43%  
90% offered a daily rate of more than £120 £180 £150
10% offered a daily rate of more than £425 £600 £472
UK excluding London median daily rate £375 £363 £345
% change year-on-year +3.44% +5.07%  
Number of hourly rates quoted 14 6 7
Median hourly rate £17.35 £13.00 £13.00
Median hourly rate % change year-on-year +33.46% -  
90% offered a hourly rate of more than £13.00 £12.25 £12.27
10% offered a hourly rate of more than £46.50 £13.23 £20.00
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 Gloucestershire

The job posting trend of jobs advertised in Gloucestershire 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 Gloucestershire

CentOS
Contractor Daily Rate Trend in Gloucestershire

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

Contractor daily rate trend for CentOS in Gloucestershire

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 Gloucestershire region with a requirement for CentOS.

1 3 (100.00%) Linux
1 3 (100.00%) Red Hat Enterprise Linux
1 3 (100.00%) Security Cleared
2 2 (66.67%) Amazon AWS
2 2 (66.67%) DevOps
2 2 (66.67%) Git (software)
2 2 (66.67%) Unix
2 2 (66.67%) DV Cleared
2 2 (66.67%) Bash Shell
2 2 (66.67%) Python
2 2 (66.67%) Debian
3 1 (33.33%) Agile Software Development
3 1 (33.33%) SSH
3 1 (33.33%) Ubuntu
3 1 (33.33%) JIRA
3 1 (33.33%) LANDesk
3 1 (33.33%) Atlassian
3 1 (33.33%) SC Cleared
3 1 (33.33%) LAN
3 1 (33.33%) HTTP
3 1 (33.33%) TCP/IP
3 1 (33.33%) Red Hat
3 1 (33.33%) Telecoms
3 1 (33.33%) Migration
3 1 (33.33%) Confluence
3 1 (33.33%) Puppet
3 1 (33.33%) OpenStack
3 1 (33.33%) Data Analytics
3 1 (33.33%) Bitbucket
3 1 (33.33%) IaaS

CentOS
Co-occurring IT Skills in Gloucestershire 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 (33.33%) Confluence
1 1 (33.33%) Elasticsearch
1 1 (33.33%) OpenStack
Cloud Services
1 2 (66.67%) Amazon AWS
2 1 (33.33%) IaaS
2 1 (33.33%) Microsoft Azure
2 1 (33.33%) PaaS
Communications & Networking
1 1 (33.33%) HTTP
1 1 (33.33%) LAN
1 1 (33.33%) SSH
1 1 (33.33%) TCP/IP
Database & Business Intelligence
1 1 (33.33%) Hadoop
Development Applications
1 2 (66.67%) Git (software)
2 1 (33.33%) Bitbucket
2 1 (33.33%) Jenkins
2 1 (33.33%) JIRA
General
1 1 (33.33%) Telecoms
Job Titles
1 1 (33.33%) Administrator
1 1 (33.33%) Developer
1 1 (33.33%) Java Developer
1 1 (33.33%) Linux Developer
1 1 (33.33%) Linux Engineer
1 1 (33.33%) Systems Administrator
Libraries, Frameworks & Software Standards
1 1 (33.33%) Elastic Stack
1 1 (33.33%) YAML
Miscellaneous
1 1 (33.33%) Linux Command Line
Operating Systems
1 3 (100.00%) Linux
1 3 (100.00%) Red Hat Enterprise Linux
2 2 (66.67%) Debian
2 2 (66.67%) Unix
3 1 (33.33%) Ubuntu
Processes & Methodologies
1 2 (66.67%) DevOps
2 1 (33.33%) Agile Software Development
2 1 (33.33%) Analytics
2 1 (33.33%) Data Analytics
2 1 (33.33%) Migration
2 1 (33.33%) Open Source
Programming Languages
1 2 (66.67%) Bash Shell
1 2 (66.67%) Python
2 1 (33.33%) C
2 1 (33.33%) Java
2 1 (33.33%) JavaScript
Qualifications
1 3 (100.00%) Security Cleared
2 2 (66.67%) DV Cleared
3 1 (33.33%) SC Cleared
System Software
1 1 (33.33%) KVM
Systems Management
1 1 (33.33%) Grafana
1 1 (33.33%) Kubernetes
1 1 (33.33%) logstash
1 1 (33.33%) Puppet
1 1 (33.33%) SELinux
Vendors
1 1 (33.33%) Atlassian
1 1 (33.33%) LANDesk
1 1 (33.33%) Red Hat