The table below looks at the statistics for CentOS skills in IT contracts advertised for the Hertfordshire region. Included is a guide to the average contractor rates offered in IT contracts that have cited CentOS over the 3 months to 19 December 2014 with a comparison to the same period in the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

Location
3 months to
19 Dec 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 61 60 -
Rank change year-on-year
-1 -
Contract jobs citing CentOS 3 3 0
As % of all contract IT jobs located in Hertfordshire 0.43% 0.47% -
As % of the Operating Systems category 1.70% 1.73% -
Number of daily rates quoted 1 3 0
Average daily rate
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of your Daily Rate
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£375 £400 -
Average daily rate % change year-on-year
-6.25% -
UK excluding London average daily rate £375 £388 £341
% change year-on-year
-3.22% +13.55%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - £32.50 £32.50
CentOS
East of England

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in contract jobs advertised in the Hertfordshire region.

Operating Systems Category
Hertfordshire
Contract IT job ads with a match in the
Operating Systems category
176 173 242
As % of all contract IT jobs located in Hertfordshire 25.43% 27.24% 25.99%
Number of daily rates quoted 87 82 103
Average daily rate £375 £340 £425
Average daily rate % change year-on-year
+10.29% -20.00%
90% offered a daily rate of more than £142 £138 £275
10% offered a daily rate of more than £510 £450 £598
UK excluding London average daily rate £338 £310 £325
% change year-on-year
+8.87% -4.61%
Number of hourly rates quoted 20 21 32
Average hourly rate £29.75 £14.00 £15.00
Average hourly rate % change year-on-year
+112.50% -6.66%
90% offered a hourly rate of more than £10.95 £12.00 £9.50
10% offered a hourly rate of more than £46.35 £34.00 £17.95
UK excluding London average hourly rate £15.85 £15.00 £17.00
% change year-on-year
+5.66% -11.76%

CentOS
Jobs Demand Trend in Hertfordshire

This chart provides a 3-month moving total of IT contractor jobs citing CentOS across the Hertfordshire region as a proportion of the total demand within the Operating Systems category.

CentOS Jobs Demand Trend in Hertfordshire

CentOS
Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing CentOS across the Hertfordshire region.

CentOS Daily Rate Trend in Hertfordshire

CentOS
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 19 December 2014, IT contractor jobs across the Hertfordshire region citing CentOS also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited CentOS.

1 3 (100.00%) Linux
1 3 (100.00%) Red Hat Enterprise Linux
2 2 (66.67%) Hyper-V
2 2 (66.67%) Bash Shell
2 2 (66.67%) Puppet
2 2 (66.67%) VMware Infrastructure
2 2 (66.67%) SUSE Linux Enterprise Server
2 2 (66.67%) VMware
2 2 (66.67%) Clustering
2 2 (66.67%) Ruby
2 2 (66.67%) Ubuntu
2 2 (66.67%) Korn
2 2 (66.67%) Perl
2 2 (66.67%) Shell Script
3 1 (33.33%) Configuration Management
3 1 (33.33%) ITIL
3 1 (33.33%) UNIX
3 1 (33.33%) Windows
3 1 (33.33%) ISDN
3 1 (33.33%) LAN
3 1 (33.33%) VoIP
3 1 (33.33%) WAN
3 1 (33.33%) TCP/IP
3 1 (33.33%) VPN
3 1 (33.33%) Cisco
3 1 (33.33%) CCNA
3 1 (33.33%) Cisco Certification
3 1 (33.33%) Firmware
3 1 (33.33%) VLAN
3 1 (33.33%) IP Telephony

CentOS
Top Related IT Skills in Hertfordshire by Category

For the 6 months to 19 December 2014, IT contractor jobs across the Hertfordshire region citing CentOS also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited CentOS. Up to 20 skills are shown per category.

Communications & Networking
1 1 (33.33%) ISDN
1 1 (33.33%) LAN
1 1 (33.33%) VoIP
1 1 (33.33%) WAN
1 1 (33.33%) TCP/IP
1 1 (33.33%) VPN
1 1 (33.33%) VLAN
1 1 (33.33%) IP Telephony
1 1 (33.33%) Firewall
Job Titles
1 2 (66.67%) Administrator
1 2 (66.67%) Linux Administrator
2 1 (33.33%) Network Engineer
2 1 (33.33%) Support Engineer
2 1 (33.33%) Network Support Engineer
2 1 (33.33%) Network Support
Miscellaneous
1 2 (66.67%) Clustering
Operating Systems
1 3 (100.00%) Linux
1 3 (100.00%) Red Hat Enterprise Linux
2 2 (66.67%) SUSE Linux Enterprise Server
2 2 (66.67%) Ubuntu
3 1 (33.33%) UNIX
3 1 (33.33%) Windows
Processes & Methodologies
1 1 (33.33%) Configuration Management
1 1 (33.33%) ITIL
1 1 (33.33%) DevOps
1 1 (33.33%) Kalman Filter
Programming Languages
1 2 (66.67%) Bash Shell
1 2 (66.67%) Ruby
1 2 (66.67%) Korn
1 2 (66.67%) Perl
1 2 (66.67%) Shell Script
Qualifications
1 1 (33.33%) CCNA
1 1 (33.33%) Cisco Certification
System Software
1 2 (66.67%) Hyper-V
1 2 (66.67%) VMware Infrastructure
2 1 (33.33%) Firmware
Systems Management
1 2 (66.67%) Puppet
2 1 (33.33%) FortiGate
Vendors
1 2 (66.67%) VMware
2 1 (33.33%) Cisco