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 5 May 2016 with a comparison to the same period over the previous 2 years.

3 months to
5 May 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 116 121 118
Rank change year-on-year
+5 -3
Permanent jobs citing CentOS 20 31 29
As % of all permanent IT jobs located in Reading 1.05% 1.29% 1.20%
As % of the Operating Systems category 3.06% 4.93% 4.34%
Number of salaries quoted 20 24 29
Median salary £47,500 £23,000 £35,000
Median salary % change year-on-year
+106.52% -34.28%
90% offered a salary of more than £40,000 £22,150 £22,000
10% offered a salary of more than £53,000 £36,350 £44,000
UK excluding London median salary £48,500 £40,000 £37,500
% change year-on-year
+21.25% +6.66%
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
654 629 668
As % of all permanent IT jobs located in Reading 34.49% 26.13% 27.68%
Number of salaries quoted 588 475 517
Median salary £47,500 £40,000 £38,000
Median salary % change year-on-year
+18.75% +5.26%
90% offered a salary of more than £30,000 £22,500 £24,000
10% offered a salary of more than £60,000 £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 5 May 2016.

CentOS Salary Histogram in Reading

CentOS
Top 30 Related IT Skills in Reading

For the 6 months to 5 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 53 (100.00%) Linux
2 45 (84.91%) Red Hat
3 26 (49.06%) Ubuntu
4 24 (45.28%) Perl
5 22 (41.51%) TCP/IP
5 22 (41.51%) Firewall
5 22 (41.51%) Amazon AWS
6 21 (39.62%) MySQL
6 21 (39.62%) Opscode Chef
7 20 (37.74%) OpenStack
7 20 (37.74%) Cisco
8 19 (35.85%) Apache
8 19 (35.85%) Python
9 18 (33.96%) Windows
9 18 (33.96%) Hadoop
9 18 (33.96%) Ruby
10 17 (32.08%) Red Hat Enterprise Linux
10 17 (32.08%) Bash Shell
11 16 (30.19%) nginx
11 16 (30.19%) VMware
12 15 (28.30%) Jenkins
13 14 (26.42%) Windows Server 2012
13 14 (26.42%) Windows Server
13 14 (26.42%) JBoss
14 13 (24.53%) Microsoft Azure
15 12 (22.64%) Customer Engagement
15 12 (22.64%) Visualisation
15 12 (22.64%) Windows Server 2008
15 12 (22.64%) Atlassian Bamboo
15 12 (22.64%) Data Protection

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 20 (37.74%) OpenStack
2 19 (35.85%) Apache
3 16 (30.19%) nginx
4 14 (26.42%) JBoss
5 8 (15.09%) IIS
6 6 (11.32%) Apache Spark
7 4 (7.55%) Tomcat
8 2 (3.77%) SharePoint
8 2 (3.77%) SharePoint 2010
8 2 (3.77%) SharePoint 2013
8 2 (3.77%) Skype for Business
Business Applications
1 2 (3.77%) Dynamics CRM
2 1 (1.89%) SAP Oil and Gas
Cloud Services
1 22 (41.51%) Amazon AWS
2 13 (24.53%) Microsoft Azure
3 2 (3.77%) Office 365
3 2 (3.77%) SaaS
Communications & Networking
1 22 (41.51%) Firewall
1 22 (41.51%) TCP/IP
2 12 (22.64%) DNS
3 10 (18.87%) BGP
3 10 (18.87%) OSPF
3 10 (18.87%) SSL
4 8 (15.09%) FTP
4 8 (15.09%) LAN
4 8 (15.09%) SAN
4 8 (15.09%) WAN
5 4 (7.55%) Internet
5 4 (7.55%) IPsec
5 4 (7.55%) MPLS
5 4 (7.55%) Structured Cabling
5 4 (7.55%) VPN
5 4 (7.55%) VXLAN
6 1 (1.89%) tcpdump
6 1 (1.89%) Wireshark
Database & Business Intelligence
1 21 (39.62%) MySQL
2 18 (33.96%) Hadoop
3 12 (22.64%) PostgreSQL
3 12 (22.64%) SQL Server
4 6 (11.32%) Apache Cassandra
4 6 (11.32%) Big Data
Development Applications
1 15 (28.30%) Jenkins
2 12 (22.64%) Atlassian Bamboo
3 7 (13.21%) Subversion
4 6 (11.32%) Git (software)
5 2 (3.77%) Team Foundation Server
General
1 1 (1.89%) Electronics
1 1 (1.89%) Finance
1 1 (1.89%) Manufacturing
1 1 (1.89%) Marketing
1 1 (1.89%) Telecoms
Job Titles
1 12 (22.64%) Administrator
1 12 (22.64%) Linux Administrator
2 10 (18.87%) Infrastructure Engineer
3 9 (16.98%) Linux Systems Administrator
3 9 (16.98%) Systems Administrator
4 8 (15.09%) Systems Engineer
5 6 (11.32%) AWS Administrator
5 6 (11.32%) Support Engineer
6 5 (9.43%) Linux Engineer
6 5 (9.43%) Senior Linux Administrator
6 5 (9.43%) Senior Linux Systems Administrator
6 5 (9.43%) Senior Systems Administrator
7 4 (7.55%) Associate Engineer
7 4 (7.55%) Senior Infrastructure Engineer
7 4 (7.55%) Senior Systems Engineer
8 3 (5.66%) Senior Linux Engineer
9 2 (3.77%) 2nd Line Support
9 2 (3.77%) Help Desk Engineer
9 2 (3.77%) Linux Support
9 2 (3.77%) Solaris Systems Administrator
Libraries, Frameworks & Software Standards
1 12 (22.64%) Web Services
2 7 (13.21%) LAMP
3 6 (11.32%) CSS
3 6 (11.32%) HTML
4 2 (3.77%) .NET
4 2 (3.77%) ASP.NET
5 1 (1.89%) LEMP Stack
Miscellaneous
1 12 (22.64%) Visualisation
2 3 (5.66%) Analytical Skills
3 2 (3.77%) Computer Science
3 2 (3.77%) Cyber Attack
3 2 (3.77%) Mathematics
3 2 (3.77%) Physics
4 1 (1.89%) Data Centre
4 1 (1.89%) Derivative
Operating Systems
1 53 (100.00%) Linux
2 26 (49.06%) Ubuntu
3 18 (33.96%) Windows
4 17 (32.08%) Red Hat Enterprise Linux
5 14 (26.42%) Windows Server
5 14 (26.42%) Windows Server 2012
6 12 (22.64%) Debian
6 12 (22.64%) Windows Server 2008
7 10 (18.87%) Unix
8 5 (9.43%) Solaris
9 2 (3.77%) Windows Server 2003
10 1 (1.89%) Fedora
10 1 (1.89%) Kali Linux
10 1 (1.89%) Oracle Linux
Processes & Methodologies
1 12 (22.64%) Agile Software Development
1 12 (22.64%) Customer Engagement
1 12 (22.64%) Data Protection
1 12 (22.64%) Data Visualisation
1 12 (22.64%) DevOps
1 12 (22.64%) Migration
1 12 (22.64%) Scrum
2 8 (15.09%) Configuration Management
2 8 (15.09%) Load Balancing
3 7 (13.21%) High Availability
4 6 (11.32%) Open Source
5 4 (7.55%) Information Security
5 4 (7.55%) Server Building
5 4 (7.55%) Software Deployment
6 3 (5.66%) Analytics
7 2 (3.77%) CRM
7 2 (3.77%) Knowledge Management
7 2 (3.77%) Linux Kernel Development
7 2 (3.77%) Low Latency
7 2 (3.77%) Performance Tuning
Programming Languages
1 24 (45.28%) Perl
2 19 (35.85%) Python
3 18 (33.96%) Ruby
4 17 (32.08%) Bash Shell
5 8 (15.09%) C
6 7 (13.21%) PHP
7 5 (9.43%) Shell Script
7 5 (9.43%) SQL
8 2 (3.77%) C#
Qualifications
1 6 (11.32%) Cisco Certification
2 4 (7.55%) CCIE
2 4 (7.55%) JNCIP
3 2 (3.77%) Degree
3 2 (3.77%) MCSE
3 2 (3.77%) Microsoft Certification
System Software
1 12 (22.64%) Docker
2 6 (11.32%) Active Directory
3 4 (7.55%) iptables
4 3 (5.66%) VMware Infrastructure
5 2 (3.77%) Postfix
5 2 (3.77%) qmail
6 1 (1.89%) Squid
Systems Management
1 21 (39.62%) Opscode Chef
2 12 (22.64%) Nagios
2 12 (22.64%) Puppet
3 10 (18.87%) ZABBIX
4 4 (7.55%) logstash
5 3 (5.66%) Ansible
6 2 (3.77%) CFEngine
Vendors
1 45 (84.91%) Red Hat
2 20 (37.74%) Cisco
3 16 (30.19%) VMware
4 12 (22.64%) F5
5 10 (18.87%) Forcepoint
5 10 (18.87%) Microsoft
6 8 (15.09%) 3PAR
6 8 (15.09%) HP
7 6 (11.32%) Juniper
8 2 (3.77%) Tripwire
9 1 (1.89%) Oracle
9 1 (1.89%) SAP
9 1 (1.89%) Splunk
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