The table below looks at the statistics for CentOS skills in IT jobs advertised for the Croydon region. Included is a guide to the salaries offered in IT jobs that have cited CentOS over the 3 months to 18 January 2017 with a comparison to the same period over the previous 2 years.

3 months to
18 Jan 2017
Same period 2016 Same period 2015
CentOS Linux
London / Croydon
Rank 20 46 33
Rank change year-on-year
+26 -13
Permanent jobs citing CentOS 14 1 8
As % of all permanent IT jobs located in Croydon 7.22% 0.38% 4.15%
As % of the Operating Systems category 31.82% 1.12% 10.81%
Number of salaries quoted 14 1 8
Median salary £47,500 £45,000 £27,000
Median salary % change year-on-year
+5.55% +66.66%
90% offered a salary of more than £45,750 £45,000 £24,000
10% offered a salary of more than £50,000 £45,000 £30,000
UK excluding London median salary £45,500 £45,000 £41,250
% change year-on-year
+1.11% +9.09%

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in permanent jobs advertised in the Croydon region.

Operating Systems Category
Croydon
Permanent IT job ads with a match in the
Operating Systems category
44 89 74
As % of all permanent IT jobs located in Croydon 22.68% 34.23% 38.34%
Number of salaries quoted 43 88 63
Median salary £45,000 £39,500 £25,000
Median salary % change year-on-year
+13.92% +58.00%
90% offered a salary of more than £21,000 £23,000 £21,300
10% offered a salary of more than £57,500 £42,500 £55,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Jobs Demand Trend in Croydon

The demand trend of job ads across the Croydon region citing CentOS as a proportion of all IT jobs with a match in the Operating Systems category.

CentOS Jobs Demand Trend in Croydon

CentOS
Salary Trend in Croydon

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

CentOS Salary Trend in Croydon

CentOS
Salary Histogram in Croydon

This chart provides a salary histogram for IT jobs citing CentOS across the Croydon region over the 3 months to 18 January 2017.

CentOS Salary Histogram in Croydon

CentOS
Top 30 Related IT Skills in Croydon

For the 6 months to 18 January 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 24 (100.00%) Linux
1 24 (100.00%) Nagios
1 24 (100.00%) Bash Shell
2 23 (95.83%) Data Centre
2 23 (95.83%) Telecoms
2 23 (95.83%) Perl
3 20 (83.33%) Apache
4 17 (70.83%) Asterisk PBX
5 13 (54.17%) PHP
5 13 (54.17%) MySQL
5 13 (54.17%) LAMP
6 12 (50.00%) Virtual Machines
7 7 (29.17%) SQL
8 5 (20.83%) VMware
8 5 (20.83%) Opscode Chef
9 4 (16.67%) CFEngine
9 4 (16.67%) Open Source
9 4 (16.67%) Puppet
9 4 (16.67%) Git (software)
9 4 (16.67%) Cacti
9 4 (16.67%) VoIP
9 4 (16.67%) Configuration Management
10 2 (8.33%) Firewall
10 2 (8.33%) iptables
11 1 (4.17%) HAProxy
11 1 (4.17%) Network Monitoring
11 1 (4.17%) VMware Infrastructure
11 1 (4.17%) VMware ESXi
11 1 (4.17%) Subversion
11 1 (4.17%) Clustering

CentOS
Top Related 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 20 (83.33%) Apache
2 1 (4.17%) MS Exchange
Communications & Networking
1 17 (70.83%) Asterisk PBX
2 4 (16.67%) VoIP
3 2 (8.33%) Firewall
Database & Business Intelligence
1 13 (54.17%) MySQL
Development Applications
1 4 (16.67%) Git (software)
2 1 (4.17%) Subversion
General
1 23 (95.83%) Telecoms
Job Titles
1 24 (100.00%) Administrator
1 24 (100.00%) Systems Administrator
2 23 (95.83%) Linux Administrator
2 23 (95.83%) Linux Systems Administrator
3 12 (50.00%) Network Administrator
Libraries, Frameworks & Software Standards
1 13 (54.17%) LAMP
Miscellaneous
1 23 (95.83%) Data Centre
2 1 (4.17%) Clustering
Operating Systems
1 24 (100.00%) Linux
Processes & Methodologies
1 4 (16.67%) Configuration Management
1 4 (16.67%) Open Source
2 1 (4.17%) Network Monitoring
Programming Languages
1 24 (100.00%) Bash Shell
2 23 (95.83%) Perl
3 13 (54.17%) PHP
4 7 (29.17%) SQL
System Software
1 12 (50.00%) Virtual Machines
2 2 (8.33%) iptables
3 1 (4.17%) VMware ESXi
3 1 (4.17%) VMware Infrastructure
Systems Management
1 24 (100.00%) Nagios
2 5 (20.83%) Opscode Chef
3 4 (16.67%) Cacti
3 4 (16.67%) CFEngine
3 4 (16.67%) Puppet
4 1 (4.17%) HAProxy
Vendors
1 5 (20.83%) VMware