The table below looks at the statistics for CentOS skills in IT jobs advertised for the Reading region. Included is a guide to the salaries offered in IT jobs that have cited CentOS over the 3 months to 25 May 2016 with a comparison to the same period over the previous 2 years.

3 months to
25 May 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 110 124 116
Rank change year-on-year
+14 -8
Permanent jobs citing CentOS 23 29 27
As % of all permanent IT jobs located in Reading 1.32% 1.28% 1.16%
As % of the Operating Systems category 3.83% 4.94% 4.17%
Number of salaries quoted 23 19 27
Median salary £50,000 £23,000 £35,000
Median salary % change year-on-year
+117.39% -34.28%
90% offered a salary of more than £40,500 £22,500 £22,000
10% offered a salary of more than £75,500 £62,000 £44,000
UK excluding London median salary £50,000 £42,500 £37,500
% change year-on-year
+17.64% +13.33%
CentOS
Berkshire

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

Operating Systems Category
Reading
Permanent IT job ads with a match in the
Operating Systems category
600 587 648
As % of all permanent IT jobs located in Reading 34.48% 25.81% 27.94%
Number of salaries quoted 536 459 471
Median salary £50,000 £38,000 £38,500
Median salary % change year-on-year
+31.57% -1.29%
90% offered a salary of more than £31,500 £22,500 £22,500
10% offered a salary of more than £65,000 £60,000 £65,000
UK excluding London median salary £37,500 £37,500 £36,000
% change year-on-year
- +4.16%

CentOS
Jobs Demand Trend in Reading

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

CentOS Jobs Demand Trend in Reading

CentOS
Salary Trend in Reading

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

CentOS Salary Trend in Reading

CentOS
Salary Histogram in Reading

This chart provides a salary histogram for IT jobs citing CentOS across the Reading region over the 3 months to 25 May 2016.

CentOS Salary Histogram in Reading

CentOS
Top 30 Related IT Skills in Reading

For the 6 months to 25 May 2016, 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 Reading region with a requirement for CentOS.

1 45 (100.00%) Linux
2 32 (71.11%) Red Hat
3 22 (48.89%) Amazon AWS
4 20 (44.44%) Jenkins
5 19 (42.22%) Ubuntu
5 19 (42.22%) Firewall
6 18 (40.00%) MySQL
6 18 (40.00%) Opscode Chef
7 17 (37.78%) DevOps
7 17 (37.78%) Apache
8 16 (35.56%) Python
8 16 (35.56%) Perl
8 16 (35.56%) Ruby
8 16 (35.56%) Hadoop
9 15 (33.33%) Red Hat Enterprise Linux
10 14 (31.11%) nginx
10 14 (31.11%) Bash Shell
10 14 (31.11%) Agile Software Development
10 14 (31.11%) Web Services
10 14 (31.11%) Cisco
10 14 (31.11%) Docker
10 14 (31.11%) OpenStack
11 13 (28.89%) TCP/IP
11 13 (28.89%) VMware
12 12 (26.67%) Debian
12 12 (26.67%) Puppet
12 12 (26.67%) Microsoft Azure
12 12 (26.67%) Windows
12 12 (26.67%) JBoss
12 12 (26.67%) SQL Server

CentOS
Top Related IT Skills in Reading 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 17 (37.78%) Apache
2 14 (31.11%) nginx
2 14 (31.11%) OpenStack
3 12 (26.67%) JBoss
4 8 (17.78%) IIS
5 6 (13.33%) Elasticsearch
6 5 (11.11%) Apache Spark
7 3 (6.67%) Tomcat
8 2 (4.44%) SharePoint
8 2 (4.44%) SharePoint 2010
8 2 (4.44%) SharePoint 2013
8 2 (4.44%) Skype for Business
Business Applications
1 2 (4.44%) Dynamics CRM
2 1 (2.22%) SAP Oil and Gas
Cloud Services
1 22 (48.89%) Amazon AWS
2 12 (26.67%) Microsoft Azure
3 2 (4.44%) Office 365
Communications & Networking
1 19 (42.22%) Firewall
2 13 (28.89%) TCP/IP
3 11 (24.44%) DNS
4 8 (17.78%) FTP
4 8 (17.78%) SAN
5 7 (15.56%) SSL
6 4 (8.89%) BGP
6 4 (8.89%) LAN
6 4 (8.89%) OSPF
6 4 (8.89%) WAN
7 2 (4.44%) Internet
7 2 (4.44%) IPsec
7 2 (4.44%) MPLS
7 2 (4.44%) Structured Cabling
7 2 (4.44%) VPN
7 2 (4.44%) VXLAN
Database & Business Intelligence
1 18 (40.00%) MySQL
2 16 (35.56%) Hadoop
3 12 (26.67%) SQL Server
4 11 (24.44%) Apache Cassandra
4 11 (24.44%) PostgreSQL
5 8 (17.78%) Big Data
6 1 (2.22%) DB2
Development Applications
1 20 (44.44%) Jenkins
2 11 (24.44%) Atlassian Bamboo
3 5 (11.11%) Git (software)
4 4 (8.89%) Subversion
5 2 (4.44%) Team Foundation Server
General
1 1 (2.22%) Electronics
1 1 (2.22%) Finance
1 1 (2.22%) Manufacturing
1 1 (2.22%) Marketing
1 1 (2.22%) Telecoms
Job Titles
1 10 (22.22%) Administrator
1 10 (22.22%) Infrastructure Engineer
1 10 (22.22%) Linux Administrator
2 8 (17.78%) Linux Systems Administrator
2 8 (17.78%) Systems Administrator
3 6 (13.33%) DevOps Engineer
3 6 (13.33%) Principal Engineer
4 5 (11.11%) AWS Administrator
4 5 (11.11%) Systems Engineer
5 4 (8.89%) Linux Engineer
5 4 (8.89%) Senior Linux Administrator
5 4 (8.89%) Senior Linux Systems Administrator
5 4 (8.89%) Senior Systems Administrator
6 3 (6.67%) Senior Infrastructure Engineer
6 3 (6.67%) Senior Linux Engineer
7 2 (4.44%) Senior Solaris Administrator
7 2 (4.44%) Senior Solaris Systems Administrator
7 2 (4.44%) Senior Unix Administrator
7 2 (4.44%) Senior Unix Systems Administrator
7 2 (4.44%) Solaris Administrator
Libraries, Frameworks & Software Standards
1 14 (31.11%) Web Services
2 6 (13.33%) Sensu
3 5 (11.11%) CSS
3 5 (11.11%) HTML
3 5 (11.11%) LAMP
4 3 (6.67%) ELK Stack
4 3 (6.67%) RESTful
5 2 (4.44%) .NET
5 2 (4.44%) ASP.NET
Miscellaneous
1 11 (24.44%) Visualisation
2 3 (6.67%) Analytical Skills
3 2 (4.44%) Cyber Attack
4 1 (2.22%) Data Centre
4 1 (2.22%) Derivative
Operating Systems
1 45 (100.00%) Linux
2 19 (42.22%) Ubuntu
3 15 (33.33%) Red Hat Enterprise Linux
4 12 (26.67%) Debian
4 12 (26.67%) Windows
4 12 (26.67%) Windows Server
4 12 (26.67%) Windows Server 2012
5 10 (22.22%) Windows Server 2008
6 7 (15.56%) Unix
7 6 (13.33%) Solaris
8 1 (2.22%) AIX
8 1 (2.22%) HPUX
8 1 (2.22%) Oracle Linux
8 1 (2.22%) SUSE
Processes & Methodologies
1 17 (37.78%) DevOps
2 14 (31.11%) Agile Software Development
3 11 (24.44%) Customer Engagement
3 11 (24.44%) Data Protection
3 11 (24.44%) Data Visualisation
3 11 (24.44%) Scrum
4 10 (22.22%) Migration
5 8 (17.78%) Load Balancing
6 7 (15.56%) Configuration Management
7 6 (13.33%) Patch Management
7 6 (13.33%) Root Cause Analysis
8 5 (11.11%) High Availability
9 3 (6.67%) Information Governance
10 2 (4.44%) Analytics
10 2 (4.44%) CRM
10 2 (4.44%) Knowledge Management
10 2 (4.44%) Open Source
10 2 (4.44%) Server Building
10 2 (4.44%) Software Deployment
10 2 (4.44%) Test Scripting
Programming Languages
1 16 (35.56%) Perl
1 16 (35.56%) Python
1 16 (35.56%) Ruby
2 14 (31.11%) Bash Shell
3 6 (13.33%) PHP
4 5 (11.11%) C
5 3 (6.67%) Java
5 3 (6.67%) JavaScript
5 3 (6.67%) Shell Script
5 3 (6.67%) SQL
6 2 (4.44%) C#
Qualifications
1 4 (8.89%) Cisco Certification
2 2 (4.44%) CCIE
2 2 (4.44%) JNCIP
2 2 (4.44%) MCSE
2 2 (4.44%) Microsoft Certification
System Software
1 14 (31.11%) Docker
2 3 (6.67%) VMware Infrastructure
3 2 (4.44%) Active Directory
3 2 (4.44%) iptables
3 2 (4.44%) Postfix
4 1 (2.22%) qmail
4 1 (2.22%) Squid
Systems Management
1 18 (40.00%) Opscode Chef
2 12 (26.67%) Puppet
3 9 (20.00%) Ansible
4 8 (17.78%) Nagios
4 8 (17.78%) ZABBIX
5 6 (13.33%) Graphite
5 6 (13.33%) logstash
5 6 (13.33%) Terraform
6 3 (6.67%) Kibana
6 3 (6.67%) Kubernetes
Vendors
1 32 (71.11%) Red Hat
2 14 (31.11%) Cisco
3 13 (28.89%) VMware
4 11 (24.44%) F5
5 10 (22.22%) Microsoft
6 9 (20.00%) HP
7 8 (17.78%) 3PAR
8 4 (8.89%) Forcepoint
9 2 (4.44%) Juniper
9 2 (4.44%) Oracle
10 1 (2.22%) EMC
10 1 (2.22%) NetApp
10 1 (2.22%) SAP
10 1 (2.22%) Sybase
10 1 (2.22%) Veeam
10 1 (2.22%) Veritas
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