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

CentOS Linux
London / Hammersmith
3 months to
24 Apr 2017
Same period 2016 Same period 2015
Rank 36 15 18
Rank change year-on-year -21 +3  
Permanent jobs citing CentOS 1 8 10
As % of all permanent IT jobs advertised in Hammersmith 0.59% 8.89% 10.42%
As % of the Operating Systems category 1.16% 23.53% 47.62%
Number of salaries quoted 1 8 10
Median salary £70,000 £65,000 £55,000
Median salary % change year-on-year +7.69% +18.18%  
UK excluding London median salary £42,500 £47,500 £40,000
% change year-on-year -10.52% +18.75%  

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 Hammersmith with a requirement for operating system skills.

Operating System Skills
Hammersmith
Permanent job vacancies with a requirement for operating system skills 86 34 21
As % of all permanent IT job vacancies advertised in Hammersmith 50.89% 37.78% 21.88%
Number of salaries quoted 83 29 15
Median salary £60,000 £62,500 £47,500
Median salary % change year-on-year -4.00% +31.57%  
90% offered a salary of more than £29,500 £46,250 £24,500
10% offered a salary of more than £80,000 £62,500 £65,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Hammersmith

The job posting trend of jobs advertised in Hammersmith 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 Hammersmith

CentOS
Salary Trend in Hammersmith

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

Salary trend for CentOS in Hammersmith

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

1 1 (100.00%) Java
1 1 (100.00%) SOAP
1 1 (100.00%) Web Services
1 1 (100.00%) Linux
1 1 (100.00%) OOP
1 1 (100.00%) OO
1 1 (100.00%) Apache
1 1 (100.00%) LDAP
1 1 (100.00%) SMTP
1 1 (100.00%) HTTP
1 1 (100.00%) DNS
1 1 (100.00%) Shell Script
1 1 (100.00%) Configuration Management
1 1 (100.00%) VMware
1 1 (100.00%) Software Engineering
1 1 (100.00%) Ruby
1 1 (100.00%) Degree
1 1 (100.00%) IMAP
1 1 (100.00%) Computer Science
1 1 (100.00%) Continuous Integration
1 1 (100.00%) Groovy
1 1 (100.00%) VMware Infrastructure
1 1 (100.00%) Red Hat Enterprise Linux
1 1 (100.00%) TeamCity
1 1 (100.00%) Git (software)
1 1 (100.00%) ZABBIX
1 1 (100.00%) nginx
1 1 (100.00%) RESTful
1 1 (100.00%) Mercurial
1 1 (100.00%) NoSQL

CentOS
Co-occurring IT Skills in Hammersmith 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 (100.00%) Apache
1 1 (100.00%) Elasticsearch
1 1 (100.00%) nginx
Communications & Networking
1 1 (100.00%) DNS
1 1 (100.00%) HTTP
1 1 (100.00%) IMAP
1 1 (100.00%) LDAP
1 1 (100.00%) SMTP
Database & Business Intelligence
1 1 (100.00%) NoSQL
1 1 (100.00%) Relational Database
Development Applications
1 1 (100.00%) Git (software)
1 1 (100.00%) Jenkins
1 1 (100.00%) Mercurial
1 1 (100.00%) TeamCity
Job Titles
1 1 (100.00%) DevOps Engineer
1 1 (100.00%) Monitoring Engineer
Libraries, Frameworks & Software Standards
1 1 (100.00%) Elastic Stack
1 1 (100.00%) RESTful
1 1 (100.00%) SOAP
1 1 (100.00%) Web Services
Miscellaneous
1 1 (100.00%) Analytical Skills
1 1 (100.00%) Computer Science
Operating Systems
1 1 (100.00%) Linux
1 1 (100.00%) Red Hat Enterprise Linux
Processes & Methodologies
1 1 (100.00%) Configuration Management
1 1 (100.00%) Continuous Integration
1 1 (100.00%) DevOps
1 1 (100.00%) High Availability
1 1 (100.00%) OO
1 1 (100.00%) OOP
1 1 (100.00%) Software Engineering
Programming Languages
1 1 (100.00%) Groovy
1 1 (100.00%) Java
1 1 (100.00%) Ruby
1 1 (100.00%) Shell Script
Qualifications
1 1 (100.00%) Degree
System Software
1 1 (100.00%) VMware Infrastructure
Systems Management
1 1 (100.00%) Ansible
1 1 (100.00%) Kibana
1 1 (100.00%) logstash
1 1 (100.00%) Opscode Chef
1 1 (100.00%) ZABBIX
Vendors
1 1 (100.00%) VMware