Period
to 20 November 2017

The following table provides summary statistics for contract job vacancies advertised in Guildford with a requirement for CentOS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CentOS over the 6 months to 20 November 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
Surrey > Guildford
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 28 23 29
Rank change year-on-year -5 +6 +6
Contract jobs citing CentOS 4 5 4
As % of all contract IT jobs advertised in Guildford 1.76% 2.37% 1.75%
As % of the Operating Systems category 4.82% 8.33% 5.26%
Number of daily rates quoted 3 2 2
Guildford median daily rate £405 £425 £413
Median daily rate % change year-on-year -4.71% +3.03% -8.33%
10th Percentile £358 £413 £376
90th Percentile £420 £438 £459
Surrey median daily rate £475 £438 £425
% change year-on-year +8.57% +2.94% -5.56%
Number of hourly rates quoted 0 0 0
Guildford median hourly rate - - -
Surrey median hourly rate - - -

CentOS is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Guildford with a requirement for operating system skills.

All Operating Systems
Guildford
Contract vacancies with a requirement for operating system skills 83 60 76
As % of all contract IT jobs advertised in Guildford 36.56% 28.44% 33.33%
Number of daily rates quoted 50 34 41
Guildford median daily rate £375 £325 £313
Median daily rate % change year-on-year +15.38% +4.00% -19.35%
10th Percentile £142 £152 £200
90th Percentile £513 £438 £400
Surrey median daily rate £425 £400 £400
% change year-on-year +6.25% - +14.29%
Number of hourly rates quoted 15 11 10
Guildford median hourly rate £14.00 £40.00 £15.75
Median hourly rate % change year-on-year -65.00% +153.97% +1.61%
10th Percentile £12.50 £12.25 £11.81
90th Percentile £19.00 £48.75 £40.00
Surrey median hourly rate £17.50 £27.50 £18.00
% change year-on-year -36.36% +52.78% +11.39%

CentOS
Job Vacancy Trend in Guildford

Job postings citing CentOS as a percentage of all IT jobs advertised in Guildford.

Job vacancy trend for CentOS in Guildford

CentOS
Contractor Daily Rate Trend in Guildford

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

Contractor daily rate trend for CentOS in Guildford

For the 6 months to 20 November 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 Guildford region with a requirement for CentOS.

1 4 (100.00%) Linux
1 4 (100.00%) Python
2 3 (75.00%) PowerShell
2 3 (75.00%) Bash Shell
2 3 (75.00%) Puppet
2 3 (75.00%) Red Hat
2 3 (75.00%) Perl
3 2 (50.00%) OSPF
3 2 (50.00%) Amazon AWS
3 2 (50.00%) Ubuntu
3 2 (50.00%) VLAN
3 2 (50.00%) SC Cleared
3 2 (50.00%) Security Cleared
3 2 (50.00%) LAN
3 2 (50.00%) WAN
3 2 (50.00%) SMTP
3 2 (50.00%) FTP
3 2 (50.00%) VPN
3 2 (50.00%) DNS
3 2 (50.00%) Firewall
3 2 (50.00%) VMware
4 1 (25.00%) Information Security
4 1 (25.00%) Agile Software Development
4 1 (25.00%) Risk Management
4 1 (25.00%) Games
4 1 (25.00%) Debian
4 1 (25.00%) Scrum
4 1 (25.00%) Apache
4 1 (25.00%) C
4 1 (25.00%) C++

CentOS
Co-occurring IT Skills in Guildford 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 (25.00%) Apache
1 1 (25.00%) nginx
Cloud Services
1 2 (50.00%) Amazon AWS
Communications & Networking
1 2 (50.00%) DNS
1 2 (50.00%) Firewall
1 2 (50.00%) FTP
1 2 (50.00%) LAN
1 2 (50.00%) OSPF
1 2 (50.00%) SMTP
1 2 (50.00%) VLAN
1 2 (50.00%) VPN
1 2 (50.00%) WAN
Development Applications
1 1 (25.00%) Git (software)
1 1 (25.00%) Jenkins
General
1 1 (25.00%) Games
Job Titles
1 2 (50.00%) Infrastructure Engineer
2 1 (25.00%) DevOps Engineer
Operating Systems
1 4 (100.00%) Linux
2 2 (50.00%) Ubuntu
3 1 (25.00%) Debian
3 1 (25.00%) Red Hat Enterprise Linux
Processes & Methodologies
1 1 (25.00%) Agile Software Development
1 1 (25.00%) Configuration Management
1 1 (25.00%) DevOps
1 1 (25.00%) Information Security
1 1 (25.00%) Open Source
1 1 (25.00%) Risk Management
1 1 (25.00%) Scrum
Programming Languages
1 4 (100.00%) Python
2 3 (75.00%) Bash Shell
2 3 (75.00%) Perl
2 3 (75.00%) PowerShell
3 1 (25.00%) C
3 1 (25.00%) C++
3 1 (25.00%) Java
Qualifications
1 2 (50.00%) SC Cleared
1 2 (50.00%) Security Cleared
System Software
1 1 (25.00%) Docker
Systems Management
1 3 (75.00%) Puppet
2 1 (25.00%) Ansible
2 1 (25.00%) Kubernetes
2 1 (25.00%) Opscode Chef
2 1 (25.00%) Terraform
Vendors
1 3 (75.00%) Red Hat
2 2 (50.00%) VMware