The following table provides summary statistics for contract job vacancies advertised in Southampton 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 24 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
Hampshire / Southampton
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 24 30 -
Rank change year-on-year +6 -  
Contract jobs citing CentOS 2 1 0
As % of all contract IT jobs advertised in Southampton 1.01% 0.46% -
As % of the Operating Systems category 3.57% 1.75% -
Number of daily rates quoted 2 1 0
Median daily rate £530 £400 -
Median daily rate % change year-on-year +32.50% -  
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 Southampton with a requirement for operating system skills.

Contract Operating System Skills
Southampton
Contract job vacancies with a requirement for operating system skills 56 57 104
As % of all contract IT job vacancies advertised in Southampton 28.14% 26.15% 28.57%
Number of daily rates quoted 38 33 79
Median daily rate £400 £425 £363
Median daily rate % change year-on-year -5.88% +17.24%  
90% offered a daily rate of more than £145 £240 £300
10% offered a daily rate of more than £425 £465 £425
UK excluding London median daily rate £375 £363 £348
% change year-on-year +3.44% +4.31%  
Number of hourly rates quoted 4 1 6
Median hourly rate £22.50 £21.00 £26.25
Median hourly rate % change year-on-year +7.14% -20.00%  
90% offered a hourly rate of more than £12.05 £21.00 £13.50
10% offered a hourly rate of more than £25.50 £21.00 £38.75
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 Southampton

The job posting trend of jobs advertised in Southampton 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 Southampton

CentOS
Contractor Daily Rate Trend in Southampton

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

Contractor daily rate trend for CentOS in Southampton

For the 6 months to 24 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 Southampton region with a requirement for CentOS.

1 3 (100.00%) Linux
1 3 (100.00%) DevOps
1 3 (100.00%) Red Hat
2 2 (66.67%) SaltStack
2 2 (66.67%) Kubernetes
2 2 (66.67%) Elastic Stack
2 2 (66.67%) Grafana
2 2 (66.67%) Puppet
2 2 (66.67%) MongoDB
2 2 (66.67%) Apache Cassandra
2 2 (66.67%) Splunk
2 2 (66.67%) OpenStack
2 2 (66.67%) Jenkins
2 2 (66.67%) Opscode Chef
2 2 (66.67%) KVM
2 2 (66.67%) Ansible
2 2 (66.67%) Docker
2 2 (66.67%) Sensu
2 2 (66.67%) logstash
2 2 (66.67%) Python
2 2 (66.67%) LAN
2 2 (66.67%) WAN
2 2 (66.67%) HTTP
2 2 (66.67%) TCP/IP
2 2 (66.67%) DNS
2 2 (66.67%) HTTPS
2 2 (66.67%) SSL
2 2 (66.67%) Perl
2 2 (66.67%) PHP
2 2 (66.67%) SQL

CentOS
Co-occurring IT Skills in Southampton 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 (66.67%) OpenStack
Cloud Services
1 2 (66.67%) Amazon AWS
2 1 (33.33%) SaaS
Communications & Networking
1 2 (66.67%) DNS
1 2 (66.67%) Firewall
1 2 (66.67%) HTTP
1 2 (66.67%) HTTPS
1 2 (66.67%) LAN
1 2 (66.67%) SSL
1 2 (66.67%) TCP/IP
1 2 (66.67%) WAN
Database & Business Intelligence
1 2 (66.67%) Apache Cassandra
1 2 (66.67%) MongoDB
1 2 (66.67%) MySQL
Development Applications
1 2 (66.67%) Git (software)
1 2 (66.67%) Jenkins
Job Titles
1 2 (66.67%) DevOps Engineer
2 1 (33.33%) Administrator
2 1 (33.33%) Consultant
2 1 (33.33%) DevOps Consultant
2 1 (33.33%) Linux Administrator
2 1 (33.33%) Linux Systems Administrator
2 1 (33.33%) Senior Linux Administrator
2 1 (33.33%) Senior Linux Systems Administrator
2 1 (33.33%) Senior Systems Administrator
2 1 (33.33%) Systems Administrator
Libraries, Frameworks & Software Standards
1 2 (66.67%) Elastic Stack
1 2 (66.67%) Sensu
Miscellaneous
1 2 (66.67%) Video on Demand
Operating Systems
1 3 (100.00%) Linux
2 1 (33.33%) Solaris
Processes & Methodologies
1 3 (100.00%) DevOps
2 2 (66.67%) Configuration Management
2 2 (66.67%) DRM
2 2 (66.67%) Open Source
3 1 (33.33%) Agile Software Development
3 1 (33.33%) Business Transformation
3 1 (33.33%) Software Engineering
Programming Languages
1 2 (66.67%) Perl
1 2 (66.67%) PHP
1 2 (66.67%) Python
1 2 (66.67%) SQL
2 1 (33.33%) AWK
2 1 (33.33%) Bash Shell
System Software
1 2 (66.67%) Docker
1 2 (66.67%) KVM
1 2 (66.67%) VMware Infrastructure
1 2 (66.67%) Xen
Systems Management
1 2 (66.67%) Ansible
1 2 (66.67%) Grafana
1 2 (66.67%) Kubernetes
1 2 (66.67%) logstash
1 2 (66.67%) Opscode Chef
1 2 (66.67%) Puppet
2 1 (33.33%) Nagios
Vendors
1 3 (100.00%) Red Hat
2 2 (66.67%) Oracle
2 2 (66.67%) SaltStack
2 2 (66.67%) Splunk
2 2 (66.67%) VMware