The following table provides summary statistics for contract job vacancies advertised in Wiltshire 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 27 March 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 / Wiltshire
3 months to
27 Mar 2017
Same period 2016 Same period 2015
Rank 60 51 62
Rank change year-on-year -9 +11  
Contract jobs citing CentOS 1 11 1
As % of all contract IT jobs advertised in Wiltshire 0.16% 1.69% 0.14%
As % of the Operating Systems category 0.95% 6.18% 0.90%
Number of daily rates quoted 0 6 1
Median daily rate - £488 £425
Median daily rate % change year-on-year - +14.70%  
UK excluding London median daily rate £475 £425 £375
% change year-on-year +11.76% +13.33%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £17.50 £8.50 £47.50
% change year-on-year +105.88% -82.10%  

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 Wiltshire with a requirement for operating system skills.

Contract Operating System Skills
Wiltshire
Contract job vacancies with a requirement for operating system skills 105 178 111
As % of all contract IT job vacancies advertised in Wiltshire 16.41% 27.30% 15.52%
Number of daily rates quoted 62 103 36
Median daily rate £355 £363 £355
Median daily rate % change year-on-year -2.06% +2.11%  
90% offered a daily rate of more than £208 £120 £200
10% offered a daily rate of more than £488 £475 £425
UK excluding London median daily rate £390 £363 £338
% change year-on-year +7.58% +7.40%  
Number of hourly rates quoted 6 18 18
Median hourly rate £17.50 £35.00 £16.00
Median hourly rate % change year-on-year -50.00% +118.75%  
90% offered a hourly rate of more than £13.35 £15.00 £12.50
10% offered a hourly rate of more than £44.15 £46.43 £20.25
UK excluding London median hourly rate £15.25 £16.84 £15.50
% change year-on-year -9.44% +8.64%  

CentOS
Job Vacancy Trend in Wiltshire

The job posting trend of jobs advertised in Wiltshire 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 Wiltshire

CentOS
Contractor Daily Rate Trend in Wiltshire

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

Contractor daily rate trend for CentOS in Wiltshire

CentOS
Contract Job Locations in Wiltshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the Wiltshire region over the 3 months to 27 March 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
Corsham - 1 - -
Swindon - 1 - -
CentOS
South West

CentOS
Top 30 Co-occurring IT Skills in Wiltshire

For the 6 months to 27 March 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 Wiltshire region with a requirement for CentOS.

1 12 (100.00%) Linux
2 11 (91.67%) Amazon AWS
3 10 (83.33%) DevOps
4 9 (75.00%) Ansible
4 9 (75.00%) Docker
4 9 (75.00%) Red Hat Enterprise Linux
5 7 (58.33%) Bash Shell
5 7 (58.33%) Red Hat
5 7 (58.33%) Java
5 7 (58.33%) Jenkins
6 6 (50.00%) Oracle
6 6 (50.00%) Python
6 6 (50.00%) Nagios
7 5 (41.67%) SSL
7 5 (41.67%) HTTP
7 5 (41.67%) TCP/IP
7 5 (41.67%) SQL Server
7 5 (41.67%) SQL
7 5 (41.67%) MySQL
7 5 (41.67%) OSSEC
7 5 (41.67%) Open Source
7 5 (41.67%) Amazon EC2
7 5 (41.67%) Amazon S3
7 5 (41.67%) Ruby
7 5 (41.67%) JIRA
7 5 (41.67%) Migration
7 5 (41.67%) Amazon RDS
7 5 (41.67%) Amazon ElastiCache
7 5 (41.67%) Route 53
7 5 (41.67%) Google Cloud Platform

CentOS
Co-occurring IT Skills in Wiltshire 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 (33.33%) Confluence
2 1 (8.33%) Apache
2 1 (8.33%) GlassFish
2 1 (8.33%) SharePoint
2 1 (8.33%) Tomcat
Cloud Services
1 11 (91.67%) Amazon AWS
2 5 (41.67%) Amazon EC2
2 5 (41.67%) Amazon ElastiCache
2 5 (41.67%) Amazon S3
2 5 (41.67%) AWS Elastic Beanstalk
2 5 (41.67%) AWS Lambda
2 5 (41.67%) Google Cloud Platform
2 5 (41.67%) Route 53
2 5 (41.67%) Virtual Private Cloud
3 4 (33.33%) Microsoft Azure
4 2 (16.67%) GitHub
Communications & Networking
1 5 (41.67%) HTTP
1 5 (41.67%) SSL
1 5 (41.67%) TCP/IP
2 4 (33.33%) VPN
3 1 (8.33%) Cisco ASA
3 1 (8.33%) DNS
3 1 (8.33%) F5 BIG-IP LTM
3 1 (8.33%) Firewall
3 1 (8.33%) Internet
3 1 (8.33%) LAN
3 1 (8.33%) LDAP
3 1 (8.33%) SAN
3 1 (8.33%) WAN
Database & Business Intelligence
1 5 (41.67%) Amazon RDS
1 5 (41.67%) MySQL
1 5 (41.67%) SQL Server
2 4 (33.33%) Amazon DynamoDB
2 4 (33.33%) Apache Cassandra
2 4 (33.33%) MongoDB
2 4 (33.33%) NoSQL
2 4 (33.33%) PostgreSQL
3 1 (8.33%) Oracle Database
3 1 (8.33%) RDBMS
3 1 (8.33%) Relational Database
Development Applications
1 7 (58.33%) Jenkins
2 5 (41.67%) JIRA
3 4 (33.33%) Artifactory
3 4 (33.33%) Atlassian Bamboo
3 4 (33.33%) SonarQube
3 4 (33.33%) Sonatype Nexus
3 4 (33.33%) Vagrant
4 2 (16.67%) Hudson
4 2 (16.67%) Subversion
Job Titles
1 6 (50.00%) DevOps Engineer
2 4 (33.33%) Lead DevOps
3 2 (16.67%) Administrator
3 2 (16.67%) AWS DevOps
3 2 (16.67%) AWS Engineer
3 2 (16.67%) Lead DevOps Engineer
3 2 (16.67%) Linux Administrator
3 2 (16.67%) Linux Systems Administrator
3 2 (16.67%) Systems Administrator
4 1 (8.33%) Consultant
4 1 (8.33%) Infrastructure Engineer
4 1 (8.33%) Linux Consultant
4 1 (8.33%) Linux DevOps Engineer
4 1 (8.33%) Linux Engineer
4 1 (8.33%) Linux/Unix DevOps
4 1 (8.33%) Senior DevOps
4 1 (8.33%) Senior Infrastructure Engineer
4 1 (8.33%) Senior Linux Engineer
4 1 (8.33%) Technical Consultant
4 1 (8.33%) WebOps Engineer
Libraries, Frameworks & Software Standards
1 5 (41.67%) Elastic Stack
2 1 (8.33%) LAMP
2 1 (8.33%) SAML
Miscellaneous
1 2 (16.67%) CESG
Operating Systems
1 12 (100.00%) Linux
2 9 (75.00%) Red Hat Enterprise Linux
3 4 (33.33%) CoreOS
4 3 (25.00%) Debian
5 1 (8.33%) Unix
5 1 (8.33%) Windows
5 1 (8.33%) Windows Server 2008
5 1 (8.33%) Windows Server 2012
Processes & Methodologies
1 10 (83.33%) DevOps
2 5 (41.67%) Auto-Scaling
2 5 (41.67%) Migration
2 5 (41.67%) Open Source
3 4 (33.33%) Configuration Management
3 4 (33.33%) Continuous Integration
3 4 (33.33%) Load Balancing
4 3 (25.00%) Agile Software Development
5 1 (8.33%) Identity Management
5 1 (8.33%) ITIL
5 1 (8.33%) ITIL V3
5 1 (8.33%) PRINCE2
5 1 (8.33%) Web Operations
Programming Languages
1 7 (58.33%) Bash Shell
1 7 (58.33%) Java
2 6 (50.00%) Python
3 5 (41.67%) Ruby
3 5 (41.67%) SQL
4 4 (33.33%) PL/SQL
5 1 (8.33%) Perl
5 1 (8.33%) PHP
Qualifications
1 2 (16.67%) CESG Certified Professional
2 1 (8.33%) BPSS Clearance
2 1 (8.33%) SANS
Quality Assurance & Compliance
1 1 (8.33%) Disclosure Scotland
System Software
1 9 (75.00%) Docker
2 4 (33.33%) LXC
2 4 (33.33%) VirtualBox
3 1 (8.33%) Active Directory
3 1 (8.33%) Shibboleth
3 1 (8.33%) VMware Infrastructure
Systems Management
1 9 (75.00%) Ansible
2 6 (50.00%) Nagios
3 5 (41.67%) OSSEC
4 4 (33.33%) Terraform
5 2 (16.67%) Puppet
5 2 (16.67%) Salt
Vendors
1 7 (58.33%) Red Hat
2 6 (50.00%) Oracle
3 5 (41.67%) New Relic
4 2 (16.67%) Google
4 2 (16.67%) SaltStack
5 1 (8.33%) ArcSight
5 1 (8.33%) Cisco
5 1 (8.33%) Dell
5 1 (8.33%) F5
5 1 (8.33%) Gemalto
5 1 (8.33%) HP
5 1 (8.33%) Juniper
5 1 (8.33%) Microsoft
5 1 (8.33%) Rackspace
5 1 (8.33%) VMware