The following table provides summary statistics for permanent job vacancies advertised in Croydon 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 27 April 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
London / Croydon
3 months to
27 Apr 2017
Same period 2016 Same period 2015
Rank 37 41 -
Rank change year-on-year +4 -  
Permanent jobs citing CentOS 1 5 0
As % of all permanent IT jobs advertised in Croydon 0.53% 1.98% -
As % of the Operating Systems category 2.86% 4.81% -
Number of salaries quoted 0 4 0
Median salary - £47,500 -
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 Croydon with a requirement for operating system skills.

Operating System Skills
Croydon
Permanent job vacancies with a requirement for operating system skills 35 104 57
As % of all permanent IT job vacancies advertised in Croydon 18.52% 41.11% 31.84%
Number of salaries quoted 26 97 49
Median salary £32,000 £36,500 £25,500
Median salary % change year-on-year -12.32% +43.13%  
90% offered a salary of more than £17,000 £21,000 £23,500
10% offered a salary of more than £57,500 £52,500 £60,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Croydon

The job posting trend of jobs advertised in Croydon 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 Croydon

CentOS
Salary Trend in Croydon

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

Salary trend for CentOS in Croydon

For the 6 months to 27 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 Croydon region with a requirement for CentOS.

1 12 (100.00%) Linux
2 11 (91.67%) Nagios
2 11 (91.67%) Bash Shell
3 10 (83.33%) Data Centre
3 10 (83.33%) Perl
3 10 (83.33%) Telecoms
4 9 (75.00%) Asterisk PBX
5 7 (58.33%) Apache
6 5 (41.67%) PHP
6 5 (41.67%) MySQL
6 5 (41.67%) Git (software)
6 5 (41.67%) LAMP
6 5 (41.67%) VMware
6 5 (41.67%) Opscode Chef
7 4 (33.33%) Open Source
7 4 (33.33%) CFEngine
7 4 (33.33%) Puppet
7 4 (33.33%) Virtual Machines
7 4 (33.33%) Cacti
7 4 (33.33%) Configuration Management
7 4 (33.33%) VoIP
8 2 (16.67%) iptables
8 2 (16.67%) Firewall
8 2 (16.67%) SQL
9 1 (8.33%) Java
9 1 (8.33%) Tomcat
9 1 (8.33%) Python
9 1 (8.33%) MS Exchange
9 1 (8.33%) Red Hat
9 1 (8.33%) JBoss

CentOS
Co-occurring IT Skills in Croydon 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 7 (58.33%) Apache
2 1 (8.33%) JBoss
2 1 (8.33%) MS Exchange
2 1 (8.33%) Tomcat
Communications & Networking
1 9 (75.00%) Asterisk PBX
2 4 (33.33%) VoIP
3 2 (16.67%) Firewall
4 1 (8.33%) OpenLDAP
Database & Business Intelligence
1 5 (41.67%) MySQL
2 1 (8.33%) Hadoop
2 1 (8.33%) HBase
2 1 (8.33%) PostgreSQL
Development Applications
1 5 (41.67%) Git (software)
2 1 (8.33%) Jenkins
2 1 (8.33%) Maven
2 1 (8.33%) Sonatype Nexus
2 1 (8.33%) Subversion
General
1 10 (83.33%) Telecoms
Job Titles
1 11 (91.67%) Administrator
1 11 (91.67%) Systems Administrator
2 10 (83.33%) Linux Administrator
2 10 (83.33%) Linux Systems Administrator
3 3 (25.00%) Network Administrator
Libraries, Frameworks & Software Standards
1 5 (41.67%) LAMP
2 1 (8.33%) ActiveMQ
2 1 (8.33%) Apache Camel
2 1 (8.33%) LAPP Stack
2 1 (8.33%) OSGi
Miscellaneous
1 10 (83.33%) Data Centre
2 1 (8.33%) Clustering
Operating Systems
1 12 (100.00%) Linux
2 1 (8.33%) Red Hat Enterprise Linux
Processes & Methodologies
1 4 (33.33%) Configuration Management
1 4 (33.33%) Open Source
2 1 (8.33%) Agile Software Development
2 1 (8.33%) Continuous Integration
2 1 (8.33%) DevOps
2 1 (8.33%) Network Monitoring
Programming Languages
1 11 (91.67%) Bash Shell
2 10 (83.33%) Perl
3 5 (41.67%) PHP
4 2 (16.67%) SQL
5 1 (8.33%) Java
5 1 (8.33%) Python
System Software
1 4 (33.33%) Virtual Machines
2 2 (16.67%) iptables
3 1 (8.33%) VMware ESXi
3 1 (8.33%) VMware Infrastructure
Systems Management
1 11 (91.67%) Nagios
2 5 (41.67%) Opscode Chef
3 4 (33.33%) Cacti
3 4 (33.33%) CFEngine
3 4 (33.33%) Puppet
4 1 (8.33%) HAProxy
4 1 (8.33%) ZABBIX
Vendors
1 5 (41.67%) VMware
2 1 (8.33%) Red Hat
Croydon
Client Server
Salary: £45k to £60k + benefits
Posted: 20 days ago