The following table provides summary statistics for contract job vacancies advertised in Hampshire 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 23 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 / Hampshire
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 86 91 114
Rank change year-on-year +5 +23  
Contract jobs citing CentOS 21 27 5
As % of all contract IT jobs advertised in Hampshire 1.18% 1.36% 0.23%
As % of the Operating Systems category 4.84% 4.35% 0.77%
Number of daily rates quoted 20 19 4
Median daily rate £500 £350 £343
Median daily rate % change year-on-year +42.85% +2.18%  
90% offered a daily rate of more than £428 £288 £281
10% offered a daily rate of more than £550 £500 £379
UK excluding London median daily rate £460 £425 £375
% change year-on-year +8.23% +13.33%  
Number of hourly rates quoted 0 2 0
Median hourly rate - £55.00 -
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 Hampshire with a requirement for operating system skills.

Contract Operating System Skills
Hampshire
Contract job vacancies with a requirement for operating system skills 434 621 651
As % of all contract IT job vacancies advertised in Hampshire 24.40% 31.17% 30.45%
Number of daily rates quoted 255 376 377
Median daily rate £400 £400 £375
Median daily rate % change year-on-year - +6.66%  
90% offered a daily rate of more than £175 £288 £250
10% offered a daily rate of more than £490 £513 £475
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 37 36 59
Median hourly rate £13.26 £47.83 £16.83
Median hourly rate % change year-on-year -72.27% +184.27%  
90% offered a hourly rate of more than £11.26 £18.75 £12.20
10% offered a hourly rate of more than £40.00 £57.50 £40.00
UK excluding London median hourly rate £15.50 £16.50 £16.20
% change year-on-year -6.06% +1.85%  

CentOS
Job Vacancy Trend in Hampshire

The job posting trend of jobs advertised in Hampshire 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 Hampshire

CentOS
Contractor Daily Rate Trend in Hampshire

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

Contractor daily rate trend for CentOS in Hampshire

CentOS
Contractor Daily Rate Histogram in Hampshire

The daily rate distribution of IT jobs citing CentOS in Hampshire over the 3 months to 23 June 2017.

Contractor daily rate histogram for CentOS in Hampshire

CentOS
Contract Job Locations in Hampshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the Hampshire region over the 3 months to 23 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
Southampton +4 2 £530 +32.50% 1
Eastleigh - 2 £500 -
Basingstoke -5 1 £600 +84.61% 1
Andover - 1 £490 -
CentOS
South East

For the 6 months to 23 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 Hampshire region with a requirement for CentOS.

1 30 (100.00%) Linux
2 26 (86.67%) DevOps
3 25 (83.33%) Red Hat
4 19 (63.33%) Oracle
4 19 (63.33%) VMware
4 19 (63.33%) VMware Infrastructure
5 17 (56.67%) Python
5 17 (56.67%) Puppet
6 16 (53.33%) MongoDB
6 16 (53.33%) Jenkins
6 16 (53.33%) Docker
6 16 (53.33%) HTTP
6 16 (53.33%) TCP/IP
6 16 (53.33%) MySQL
6 16 (53.33%) Git (software)
7 15 (50.00%) PHP
7 15 (50.00%) SQL
7 15 (50.00%) SSL
7 15 (50.00%) Firewall
7 15 (50.00%) Ansible
7 15 (50.00%) Opscode Chef
8 14 (46.67%) KVM
8 14 (46.67%) OpenStack
8 14 (46.67%) Apache Cassandra
8 14 (46.67%) SaltStack
8 14 (46.67%) Configuration Management
8 14 (46.67%) Perl
8 14 (46.67%) Xen
8 14 (46.67%) Agile Software Development
9 13 (43.33%) Video on Demand

CentOS
Co-occurring IT Skills in Hampshire 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 14 (46.67%) OpenStack
2 1 (3.33%) Apache
2 1 (3.33%) GlassFish
2 1 (3.33%) SharePoint
2 1 (3.33%) Tomcat
Business Applications
1 2 (6.67%) SAP Oil and Gas
Cloud Services
1 12 (40.00%) Amazon AWS
2 6 (20.00%) SaaS
3 1 (3.33%) Microsoft Azure
Communications & Networking
1 16 (53.33%) HTTP
1 16 (53.33%) TCP/IP
2 15 (50.00%) Firewall
2 15 (50.00%) SSL
3 12 (40.00%) DNS
3 12 (40.00%) LAN
3 12 (40.00%) WAN
4 11 (36.67%) HTTPS
5 5 (16.67%) LDAP
5 5 (16.67%) Network Security
6 4 (13.33%) IPsec
7 3 (10.00%) Internet
7 3 (10.00%) Intrusion Detection
8 2 (6.67%) DVB
8 2 (6.67%) SAN
8 2 (6.67%) Wireless
9 1 (3.33%) Cisco ASA
9 1 (3.33%) F5 BIG-IP LTM
9 1 (3.33%) iSCSI
Database & Business Intelligence
1 16 (53.33%) MongoDB
1 16 (53.33%) MySQL
2 14 (46.67%) Apache Cassandra
3 2 (6.67%) NoSQL
4 1 (3.33%) Big Data
4 1 (3.33%) Hadoop
4 1 (3.33%) Oracle Database
4 1 (3.33%) RDBMS
4 1 (3.33%) Relational Database
4 1 (3.33%) SQL Server
Development Applications
1 16 (53.33%) Git (software)
1 16 (53.33%) Jenkins
2 1 (3.33%) Hudson
General
1 2 (6.67%) Back Office
1 2 (6.67%) Electronics
1 2 (6.67%) Finance
1 2 (6.67%) Manufacturing
1 2 (6.67%) Marketing
1 2 (6.67%) Telecoms
Job Titles
1 12 (40.00%) DevOps Engineer
2 6 (20.00%) Administrator
3 5 (16.67%) Cloud Engineer
4 4 (13.33%) Linux Administrator
4 4 (13.33%) Systems Administrator
4 4 (13.33%) Systems Engineer
5 3 (10.00%) Automation Engineer
5 3 (10.00%) Consultant
5 3 (10.00%) DevOps Administrator
6 2 (6.67%) Architect
6 2 (6.67%) DevOps Consultant
6 2 (6.67%) Integration Engineer
6 2 (6.67%) Linux Systems Administrator
6 2 (6.67%) Security Engineer
6 2 (6.67%) Security Specialist
6 2 (6.67%) Senior Linux Administrator
6 2 (6.67%) Senior Linux Systems Administrator
6 2 (6.67%) Senior Systems Administrator
6 2 (6.67%) Systems Integration Engineer
6 2 (6.67%) Technical Architect
Libraries, Frameworks & Software Standards
1 12 (40.00%) Elastic Stack
1 12 (40.00%) Sensu
2 3 (10.00%) XML
3 2 (6.67%) HTML
3 2 (6.67%) HTML5
3 2 (6.67%) Middleware
3 2 (6.67%) Node.js
3 2 (6.67%) Oracle Fusion
3 2 (6.67%) REST
4 1 (3.33%) JSF
4 1 (3.33%) LAMP
4 1 (3.33%) SAML
Miscellaneous
1 13 (43.33%) Video on Demand
2 3 (10.00%) Data Centre
2 3 (10.00%) PKI
3 2 (6.67%) Clustering
3 2 (6.67%) Computer Science
3 2 (6.67%) Digital TV
3 2 (6.67%) Fat Client
3 2 (6.67%) Management Information System
3 2 (6.67%) MPEG
3 2 (6.67%) STB
3 2 (6.67%) Thin Client
4 1 (3.33%) Client/Server
4 1 (3.33%) IBM XIV
Operating Systems
1 30 (100.00%) Linux
2 9 (30.00%) Red Hat Enterprise Linux
3 8 (26.67%) Unix
4 4 (13.33%) Oracle Linux
5 3 (10.00%) Ubuntu
6 2 (6.67%) Windows
7 1 (3.33%) AIX
7 1 (3.33%) Solaris
7 1 (3.33%) Windows Server 2008
7 1 (3.33%) Windows Server 2012
Processes & Methodologies
1 26 (86.67%) DevOps
2 14 (46.67%) Agile Software Development
2 14 (46.67%) Configuration Management
3 13 (43.33%) Open Source
4 11 (36.67%) DRM
5 9 (30.00%) Software Engineering
6 5 (16.67%) Identity Management
7 4 (13.33%) Security Hardening
8 3 (10.00%) Database Security
9 2 (6.67%) Continuous Improvement
9 2 (6.67%) Email Filtering
9 2 (6.67%) High Availability
9 2 (6.67%) Kalman Filter
9 2 (6.67%) Malware Detection/Protection
9 2 (6.67%) Risk Identification and Mitigation
9 2 (6.67%) Scenario Testing
9 2 (6.67%) User Stories
9 2 (6.67%) Virtual Environments
9 2 (6.67%) Vulnerability Management
9 2 (6.67%) Web Filtering
Programming Languages
1 17 (56.67%) Python
2 15 (50.00%) PHP
2 15 (50.00%) SQL
3 14 (46.67%) Perl
4 4 (13.33%) Shell Script
5 3 (10.00%) Bash Shell
6 2 (6.67%) C
6 2 (6.67%) C++
7 1 (3.33%) AWK
7 1 (3.33%) Java
Qualifications
1 5 (16.67%) SC Cleared
1 5 (16.67%) Security Cleared
2 4 (13.33%) Degree
3 1 (3.33%) CCNA
3 1 (3.33%) CCSA
3 1 (3.33%) Cisco Certification
3 1 (3.33%) RHCE
3 1 (3.33%) RHCSS
3 1 (3.33%) SANS
Quality Assurance & Compliance
1 4 (13.33%) JSP 440
2 2 (6.67%) ISO/IEC 27001
System Software
1 19 (63.33%) VMware Infrastructure
2 16 (53.33%) Docker
3 14 (46.67%) KVM
3 14 (46.67%) Xen
4 5 (16.67%) Active Directory
5 2 (6.67%) GFS2
5 2 (6.67%) OCFS2
5 2 (6.67%) Oracle RAC
5 2 (6.67%) Virtual Machines
5 2 (6.67%) vSphere
6 1 (3.33%) Shibboleth
Systems Management
1 17 (56.67%) Puppet
2 15 (50.00%) Ansible
2 15 (50.00%) Opscode Chef
3 12 (40.00%) Grafana
3 12 (40.00%) logstash
4 11 (36.67%) Kubernetes
5 2 (6.67%) vRealize
6 1 (3.33%) Nagios
6 1 (3.33%) Nessus
6 1 (3.33%) Tivoli Storage Manager
Vendors
1 25 (83.33%) Red Hat
2 19 (63.33%) Oracle
2 19 (63.33%) VMware
3 14 (46.67%) SaltStack
4 12 (40.00%) Splunk
5 5 (16.67%) Microsoft
6 3 (10.00%) Cisco
7 2 (6.67%) SAP
8 1 (3.33%) ArcSight
8 1 (3.33%) Dell
8 1 (3.33%) F5
8 1 (3.33%) Gemalto
8 1 (3.33%) HP
8 1 (3.33%) IBM
8 1 (3.33%) Juniper
8 1 (3.33%) Qualys
8 1 (3.33%) Rackspace
8 1 (3.33%) Sourcefire