The following table provides summary statistics for contract job vacancies advertised in Surrey 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 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.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
CentOS Linux
South East / Surrey
Rank 82 89 94
Rank change year-on-year +7 +5  
Contract jobs citing CentOS 3 13 3
As % of all contract IT jobs advertised in Surrey 0.26% 1.02% 0.21%
As % of the Operating Systems category 0.89% 2.65% 1.07%
Number of daily rates quoted 3 9 0
Median daily rate £400 £340 -
Median daily rate % change year-on-year +17.64% -  
UK excluding London median daily rate £475 £425 £350
% change year-on-year +11.76% +21.42%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £47.50
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 Surrey with a requirement for operating system skills.

Contract Operating System Skills
Surrey
Contract job vacancies with a requirement for operating system skills 336 490 280
As % of all contract IT job vacancies advertised in Surrey 29.24% 38.43% 19.90%
Number of daily rates quoted 211 309 137
Median daily rate £401 £400 £363
Median daily rate % change year-on-year +0.12% +10.34%  
90% offered a daily rate of more than £175 £190 £170
10% offered a daily rate of more than £550 £525 £520
UK excluding London median daily rate £388 £363 £335
% change year-on-year +6.89% +8.20%  
Number of hourly rates quoted 15 48 32
Median hourly rate £14.75 £36.25 £15.63
Median hourly rate % change year-on-year -59.31% +132.00%  
90% offered a hourly rate of more than £12.30 £12.74 £8.83
10% offered a hourly rate of more than £19.59 £48.00 £47.50
UK excluding London median hourly rate £15.15 £16.50 £15.50
% change year-on-year -8.18% +6.45%  

CentOS
Job Vacancy Trend in Surrey

The job posting trend of jobs advertised in Surrey 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 Surrey

CentOS
Contractor Daily Rate Trend in Surrey

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

Contractor daily rate trend for CentOS in Surrey

CentOS
Contract Job Locations in Surrey

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the Surrey region over the 3 months to 23 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
Woking -6 2 £400 +18.51%
CentOS
South East

CentOS
Top 30 Related IT Skills in Surrey

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

1 18 (100.00%) Linux
2 11 (61.11%) Red Hat
2 11 (61.11%) VMware
3 10 (55.56%) VPN
4 9 (50.00%) Perl
4 9 (50.00%) Security Cleared
4 9 (50.00%) VMware Infrastructure
5 8 (44.44%) SC Cleared
5 8 (44.44%) Data Centre
5 8 (44.44%) Python
5 8 (44.44%) SAN
6 7 (38.89%) Windows
6 7 (38.89%) Ubuntu
6 7 (38.89%) Red Hat Enterprise Linux
6 7 (38.89%) vSphere
6 7 (38.89%) Puppet
7 6 (33.33%) PowerShell
8 5 (27.78%) Degree
8 5 (27.78%) vCloud
8 5 (27.78%) Cisco Nexus
8 5 (27.78%) TCP/IP
8 5 (27.78%) SMTP
8 5 (27.78%) FTP
8 5 (27.78%) DNS
8 5 (27.78%) SSL
8 5 (27.78%) Cisco
8 5 (27.78%) Microsoft
8 5 (27.78%) IPsec
9 4 (22.22%) Service Management
9 4 (22.22%) RHCT

CentOS
Top Related IT Skills in Surrey 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 (5.56%) Apache
1 1 (5.56%) JBoss
1 1 (5.56%) Tomcat
Applications
1 1 (5.56%) MS Excel
Business Applications
1 4 (22.22%) Infor M3
Cloud Services
1 1 (5.56%) GitHub
Communications & Networking
1 10 (55.56%) VPN
2 8 (44.44%) SAN
3 5 (27.78%) Cisco Nexus
3 5 (27.78%) DNS
3 5 (27.78%) FTP
3 5 (27.78%) IPsec
3 5 (27.78%) SMTP
3 5 (27.78%) SSL
3 5 (27.78%) TCP/IP
4 3 (16.67%) LAN
4 3 (16.67%) WAN
5 2 (11.11%) DVB
5 2 (11.11%) HTTP
Database & Business Intelligence
1 2 (11.11%) NoSQL
2 1 (5.56%) MySQL
Development Applications
1 3 (16.67%) Git (software)
1 3 (16.67%) Jenkins
2 2 (11.11%) Metasploit
3 1 (5.56%) Hudson
3 1 (5.56%) Subversion
General
1 1 (5.56%) Telecoms
Job Titles
1 9 (50.00%) Linux Engineer
2 4 (22.22%) Infrastructure Engineer
3 3 (16.67%) Administrator
3 3 (16.67%) Data Centre Engineer
4 2 (11.11%) Linux Administrator
4 2 (11.11%) Linux Server Engineer
4 2 (11.11%) Linux Systems Engineer
4 2 (11.11%) Server Engineer
4 2 (11.11%) Systems Administrator
4 2 (11.11%) Technical Leader
4 2 (11.11%) VMware Engineer
4 2 (11.11%) Windows Engineer
4 2 (11.11%) Windows Infrastructure Engineer
5 1 (5.56%) 3rd Line Infrastructure Engineer
5 1 (5.56%) 3rd Line Infrastructure Support
5 1 (5.56%) Cloud Consultant
5 1 (5.56%) Linux DevOps Engineer
5 1 (5.56%) Linux Scripter
5 1 (5.56%) Linux/Unix DevOps
5 1 (5.56%) PowerShell Engineer
Libraries, Frameworks & Software Standards
1 2 (11.11%) HTML
1 2 (11.11%) HTML5
1 2 (11.11%) Node.js
1 2 (11.11%) REST
2 1 (5.56%) LAMP
Miscellaneous
1 8 (44.44%) Data Centre
2 2 (11.11%) Digital TV
2 2 (11.11%) MPEG
2 2 (11.11%) STB
3 1 (5.56%) Clustering
3 1 (5.56%) VxBlock/Vblock
Operating Systems
1 18 (100.00%) Linux
2 7 (38.89%) Red Hat Enterprise Linux
2 7 (38.89%) Ubuntu
2 7 (38.89%) Windows
3 1 (5.56%) Debian
Processes & Methodologies
1 4 (22.22%) Coaching
1 4 (22.22%) Ethical Hacking
1 4 (22.22%) ITIL
1 4 (22.22%) Service Management
2 3 (16.67%) DevOps
2 3 (16.67%) Migration
3 2 (11.11%) Agile Software Development
3 2 (11.11%) Automated Testing
3 2 (11.11%) Penetration Testing
3 2 (11.11%) Scrum
3 2 (11.11%) SOA
3 2 (11.11%) TDD
4 1 (5.56%) Configuration Management
4 1 (5.56%) Load Balancing
4 1 (5.56%) Server Building
4 1 (5.56%) Service Delivery
4 1 (5.56%) Software Engineering
Programming Languages
1 9 (50.00%) Perl
2 8 (44.44%) Python
3 6 (33.33%) PowerShell
4 4 (22.22%) Bash Shell
4 4 (22.22%) C
5 2 (11.11%) C++
5 2 (11.11%) SQL
6 1 (5.56%) Java
Qualifications
1 9 (50.00%) Security Cleared
2 8 (44.44%) SC Cleared
3 5 (27.78%) Degree
4 4 (22.22%) AWS Certification
4 4 (22.22%) CEH
4 4 (22.22%) RHCT
Quality Assurance & Compliance
1 3 (16.67%) PCI DSS
System Software
1 9 (50.00%) VMware Infrastructure
2 7 (38.89%) vSphere
3 5 (27.78%) vCloud
4 3 (16.67%) Docker
5 2 (11.11%) Virtual Machines
5 2 (11.11%) VMware ESXi
Systems Management
1 7 (38.89%) Puppet
2 1 (5.56%) Ansible
2 1 (5.56%) Cobbler
2 1 (5.56%) HAProxy
2 1 (5.56%) Opscode Chef
2 1 (5.56%) Terraform
Vendors
1 11 (61.11%) Red Hat
1 11 (61.11%) VMware
2 5 (27.78%) Cisco
2 5 (27.78%) Microsoft
3 2 (11.11%) SaltStack
4 1 (5.56%) Oracle