The following table provides summary statistics for permanent job vacancies advertised in Essex 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 24 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
24 Mar 2017
Same period 2016 Same period 2015
CentOS Linux
Rank 87 - 97
Rank change year-on-year - 0  
Permanent jobs citing CentOS 2 0 6
As % of all permanent IT jobs advertised in Essex 0.20% - 0.50%
As % of the Operating Systems category 0.85% - 1.92%
Number of salaries quoted 0 0 6
Median salary - - £55,000
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year - +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 Essex with a requirement for operating system skills.

Operating System Skills
Essex
Permanent job vacancies with a requirement for operating system skills 234 251 312
As % of all permanent IT job vacancies advertised in Essex 23.08% 23.31% 25.81%
Number of salaries quoted 187 183 228
Median salary £40,000 £28,000 £45,000
Median salary % change year-on-year +42.85% -37.77%  
90% offered a salary of more than £25,000 £20,500 £22,500
10% offered a salary of more than £52,500 £62,500 £55,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Essex

The job posting trend of jobs advertised in Essex 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 Essex

CentOS
Salary Trend in Essex

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

Salary trend for CentOS in Essex

CentOS
Job Locations in Essex

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the Essex region over the 3 months to 24 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
Colchester - 2 - -
CentOS
East of England

CentOS
Top 30 Related IT Skills in Essex

For the 6 months to 24 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 Essex region with a requirement for CentOS.

1 3 (100.00%) Windows
1 3 (100.00%) Linux
2 2 (66.67%) JBoss
2 2 (66.67%) Java
2 2 (66.67%) ITIL
2 2 (66.67%) NetApp
2 2 (66.67%) Red Hat
2 2 (66.67%) Finance
2 2 (66.67%) SUSE
2 2 (66.67%) VMware
2 2 (66.67%) VMware Infrastructure
2 2 (66.67%) Virtual Machines
3 1 (33.33%) Amazon AWS
3 1 (33.33%) Puppet
3 1 (33.33%) High Availability
3 1 (33.33%) Opscode Chef
3 1 (33.33%) Ansible
3 1 (33.33%) Salt
3 1 (33.33%) Degree
3 1 (33.33%) Life Science
3 1 (33.33%) Workflow
3 1 (33.33%) Unix
3 1 (33.33%) Perl
3 1 (33.33%) MySQL
3 1 (33.33%) Python
3 1 (33.33%) LDAP
3 1 (33.33%) SMTP
3 1 (33.33%) DHCP
3 1 (33.33%) SNMP
3 1 (33.33%) TCP/IP

CentOS
Top Related IT Skills in Essex 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 2 (66.67%) JBoss
Cloud Services
1 1 (33.33%) Amazon AWS
Communications & Networking
1 1 (33.33%) DHCP
1 1 (33.33%) DNS
1 1 (33.33%) LDAP
1 1 (33.33%) SMTP
1 1 (33.33%) SNMP
1 1 (33.33%) TCP/IP
Database & Business Intelligence
1 1 (33.33%) MySQL
General
1 2 (66.67%) Finance
Job Titles
1 2 (66.67%) Linux Engineer
1 2 (66.67%) Storage Engineer
1 2 (66.67%) VMware Engineer
2 1 (33.33%) Administrator
2 1 (33.33%) Linux Administrator
2 1 (33.33%) Linux Systems Administrator
2 1 (33.33%) Senior Linux Administrator
2 1 (33.33%) Senior Linux Systems Administrator
2 1 (33.33%) Senior Systems Administrator
2 1 (33.33%) Systems Administrator
Libraries, Frameworks & Software Standards
1 1 (33.33%) WSH
Miscellaneous
1 1 (33.33%) Life Science
Operating Systems
1 3 (100.00%) Linux
1 3 (100.00%) Windows
2 2 (66.67%) SUSE
3 1 (33.33%) Unix
Processes & Methodologies
1 2 (66.67%) ITIL
2 1 (33.33%) High Availability
2 1 (33.33%) Workflow
Programming Languages
1 2 (66.67%) Java
2 1 (33.33%) Perl
2 1 (33.33%) Python
Qualifications
1 1 (33.33%) Degree
System Software
1 2 (66.67%) Virtual Machines
1 2 (66.67%) VMware Infrastructure
Systems Management
1 1 (33.33%) Ansible
1 1 (33.33%) Opscode Chef
1 1 (33.33%) Puppet
1 1 (33.33%) Salt
Vendors
1 2 (66.67%) NetApp
1 2 (66.67%) Red Hat
1 2 (66.67%) VMware