Period
to 17 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Portsmouth with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 6 months to 17 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
Hampshire > Portsmouth
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 81 47 58
Rank change year-on-year -34 +11 +49
Permanent jobs citing CentOS 7 24 28
As % of all permanent IT jobs advertised in Portsmouth 1.02% 3.61% 3.47%
As % of the Operating Systems category 3.80% 11.59% 9.52%
Number of salaries quoted 6 24 27
Portsmouth median annual salary £39,000 £50,000 £36,000
Median salary % change year-on-year -22.00% +38.89% -20.00%
Hampshire median annual salary £40,000 £47,500 £42,500
% change year-on-year -15.79% +11.76% -

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

All Operating Systems
Portsmouth
Permanent vacancies with a requirement for operating system skills 184 207 294
As % of all permanent IT jobs advertised in Portsmouth 26.74% 31.17% 36.39%
Number of salaries quoted 170 200 268
Portsmouth median annual salary £28,500 £41,000 £37,500
Median salary % change year-on-year -30.49% +9.33% -12.79%
10th Percentile £22,450 £26,225 £24,000
90th Percentile £61,250 £52,500 £55,000
Hampshire median annual salary £39,000 £40,000 £38,500
% change year-on-year -2.50% +3.90% -1.28%

CentOS
Job Vacancy Trend in Portsmouth

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

Job vacancy trend for CentOS in Portsmouth

CentOS
Salary Trend in Portsmouth

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS in Portsmouth.

Salary trend for CentOS in Portsmouth

For the 6 months to 17 November 2017, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Portsmouth region with a requirement for CentOS.

1 7 (100.00%) Linux
1 7 (100.00%) Red Hat
1 7 (100.00%) VMware
1 7 (100.00%) VMware Infrastructure
2 6 (85.71%) Red Hat Enterprise Linux
2 6 (85.71%) Open Source
2 6 (85.71%) Bash Shell
2 6 (85.71%) Puppet
2 6 (85.71%) Software Testing
2 6 (85.71%) Derivative
2 6 (85.71%) SC Cleared
2 6 (85.71%) DV Cleared
2 6 (85.71%) Security Cleared
2 6 (85.71%) Oracle Linux
2 6 (85.71%) RHCSA
2 6 (85.71%) Virtual Machines
2 6 (85.71%) Customer Requirements
2 6 (85.71%) Microsoft
2 6 (85.71%) HP
2 6 (85.71%) RHCE
2 6 (85.71%) Shell Script
2 6 (85.71%) Security Management
2 6 (85.71%) Python
2 6 (85.71%) Perl
2 6 (85.71%) Oracle
2 6 (85.71%) ITIL
2 6 (85.71%) Unix
3 1 (14.29%) Windows
3 1 (14.29%) VPN
3 1 (14.29%) DNS

CentOS
Co-occurring IT Skills in Portsmouth 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:

Communications & Networking
1 1 (14.29%) DNS
1 1 (14.29%) Multicast
1 1 (14.29%) VPN
General
1 1 (14.29%) Aerospace
Job Titles
1 7 (100.00%) Linux Engineer
2 1 (14.29%) Deployment Engineer
Miscellaneous
1 6 (85.71%) Derivative
Operating Systems
1 7 (100.00%) Linux
2 6 (85.71%) Oracle Linux
2 6 (85.71%) Red Hat Enterprise Linux
2 6 (85.71%) Unix
3 1 (14.29%) Windows
Processes & Methodologies
1 6 (85.71%) Customer Requirements
1 6 (85.71%) ITIL
1 6 (85.71%) Open Source
1 6 (85.71%) Security Management
1 6 (85.71%) Software Testing
2 1 (14.29%) Load Balancing
Programming Languages
1 6 (85.71%) Bash Shell
1 6 (85.71%) Perl
1 6 (85.71%) Python
1 6 (85.71%) Shell Script
Qualifications
1 6 (85.71%) DV Cleared
1 6 (85.71%) RHCE
1 6 (85.71%) RHCSA
1 6 (85.71%) SC Cleared
1 6 (85.71%) Security Cleared
System Software
1 7 (100.00%) VMware Infrastructure
2 6 (85.71%) Virtual Machines
3 1 (14.29%) KVM
3 1 (14.29%) VMware ESXi
Systems Management
1 6 (85.71%) Puppet
Vendors
1 7 (100.00%) Red Hat
1 7 (100.00%) VMware
2 6 (85.71%) HP
2 6 (85.71%) Microsoft
2 6 (85.71%) Oracle
3 1 (14.29%) Cisco