The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 3 months to 29 March 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
East of England / Hertfordshire
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 129 146 147
Rank change year-on-year +17 +1  
Permanent jobs citing CentOS 16 10 13
As % of all permanent IT jobs advertised in Hertfordshire 0.72% 0.38% 0.54%
As % of the Operating Systems category 3.47% 1.56% 1.70%
Number of salaries quoted 16 10 13
Median salary £45,000 £38,250 £55,000
Median salary % change year-on-year +17.64% -30.45%  
UK excluding London median salary £42,500 £45,000 £42,500
% change year-on-year -5.55% +5.88%  

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

Operating System Skills
Hertfordshire
Permanent job vacancies with a requirement for operating system skills 461 641 763
As % of all permanent IT job vacancies advertised in Hertfordshire 20.65% 24.63% 31.86%
Number of salaries quoted 380 491 611
Median salary £41,500 £35,000 £35,000
Median salary % change year-on-year +18.57% -  
90% offered a salary of more than £24,000 £23,000 £21,750
10% offered a salary of more than £62,500 £57,500 £55,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Hertfordshire

The job posting trend of jobs advertised in Hertfordshire citing CentOS as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for CentOS in Hertfordshire

CentOS
Salary Trend in Hertfordshire

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

Salary trend for CentOS in Hertfordshire

CentOS
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the Hertfordshire region over the 3 months to 29 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
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Welwyn Garden City - 16 £45,000 -
CentOS
East of England

For the 6 months to 29 March 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 Hertfordshire region with a requirement for CentOS.

1 19 (100.00%) Linux
2 17 (89.47%) Red Hat
2 17 (89.47%) LAMP
3 16 (84.21%) Active Directory
3 16 (84.21%) Windows
4 15 (78.95%) SQL
5 14 (73.68%) SQL Server
5 14 (73.68%) IIS
5 14 (73.68%) SAN
5 14 (73.68%) Marketing
5 14 (73.68%) Red Hat Enterprise Linux
6 12 (63.16%) Open Source
7 5 (26.32%) VMware Infrastructure
7 5 (26.32%) VMware
8 3 (15.79%) Nagios
8 3 (15.79%) Project Management
8 3 (15.79%) Perl
8 3 (15.79%) PHP
8 3 (15.79%) TCP/IP
8 3 (15.79%) SLA
8 3 (15.79%) WordPress
8 3 (15.79%) Ubuntu
8 3 (15.79%) Bash Shell
8 3 (15.79%) Performance Tuning
8 3 (15.79%) OpenCart
8 3 (15.79%) Xen
8 3 (15.79%) Joomla!
8 3 (15.79%) Magento
8 3 (15.79%) Cacti
9 2 (10.53%) Vulnerability Assessment

CentOS
Co-occurring IT Skills in Hertfordshire 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 (73.68%) IIS
2 3 (15.79%) Joomla!
2 3 (15.79%) WordPress
Business Applications
1 3 (15.79%) Magento
1 3 (15.79%) OpenCart
Communications & Networking
1 14 (73.68%) SAN
2 3 (15.79%) TCP/IP
Database & Business Intelligence
1 14 (73.68%) SQL Server
General
1 14 (73.68%) Marketing
Job Titles
1 16 (84.21%) Administrator
1 16 (84.21%) Systems Administrator
2 14 (73.68%) Linux Administrator
2 14 (73.68%) Linux Systems Administrator
3 3 (15.79%) Linux Engineer
4 1 (5.26%) Senior Linux Administrator
4 1 (5.26%) Senior Linux Systems Administrator
4 1 (5.26%) Senior Systems Administrator
Libraries, Frameworks & Software Standards
1 17 (89.47%) LAMP
Operating Systems
1 19 (100.00%) Linux
2 16 (84.21%) Windows
3 14 (73.68%) Red Hat Enterprise Linux
4 3 (15.79%) Ubuntu
5 2 (10.53%) Windows Server
Processes & Methodologies
1 12 (63.16%) Open Source
2 3 (15.79%) Performance Tuning
2 3 (15.79%) Project Management
3 2 (10.53%) Change Management
3 2 (10.53%) System Testing
3 2 (10.53%) Vulnerability Assessment
Programming Languages
1 15 (78.95%) SQL
2 3 (15.79%) Bash Shell
2 3 (15.79%) Perl
2 3 (15.79%) PHP
Quality Assurance & Compliance
1 3 (15.79%) SLA
System Software
1 16 (84.21%) Active Directory
2 5 (26.32%) VMware Infrastructure
3 3 (15.79%) Xen
Systems Management
1 3 (15.79%) Cacti
1 3 (15.79%) Nagios
Vendors
1 17 (89.47%) Red Hat
2 5 (26.32%) VMware
3 2 (10.53%) Cisco
Watford, Hertfordshire
Informatiq Consulting
Salary: Excellent Bens
Posted: Yesterday