The first table below looks at the demand for CentOS skills in IT jobs advertised for the Middlesex region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 24 April 2014 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all of the Operating Systems category for the Middlesex region.

Location
3 months to
24 Apr 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 45 42 58
Rank change year-on-year
-3 +16
Permanent jobs citing CentOS 3 12 2
As % of all permanent IT jobs located in Middlesex 0.83% 2.43% 0.38%
As % of the Operating Systems category 3.30% 9.09% 1.37%
Number of salaries quoted 0 12 2
Average salary - £50,000 £52,500
Average salary % change year-on-year
- -4.76%
UK excluding London average salary £39,000 £37,500 £38,500
% change year-on-year
+4.00% -2.59%
Operating Systems Category
Middlesex
Permanent IT job ads with a match in the
Operating Systems category
91 132 146
As % of all permanent IT jobs located in Middlesex 25.07% 26.77% 28.08%
Number of salaries quoted 79 126 131
Average salary £40,000 £47,500 £40,000
Average salary % change year-on-year
-15.78% +18.75%
90% offered a salary of more than £26,000 £31,500 £27,800
10% offered a salary of more than £55,000 £57,500 £70,000
UK excluding London average salary £37,000 £37,500 £37,500
% change year-on-year
-1.33% -
CentOS
South East

CentOS
Jobs Demand Trend in Middlesex

This chart provides a 3-month moving total of permanent IT jobs citing CentOS across the Middlesex region as a proportion of the total demand within the Operating Systems category.

CentOS Jobs Demand Trend in Middlesex

CentOS
Salary Trend in Middlesex

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

CentOS Salary Trend in Middlesex

CentOS
Top 30 Related IT Skills in Middlesex

For the 6 months to 24 April 2014, IT jobs across the Middlesex region citing CentOS also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited CentOS.

1 17 (100.00%) Linux
2 16 (94.12%) Perl
2 16 (94.12%) Bash Shell
3 13 (76.47%) Oracle
3 13 (76.47%) Red Hat
4 11 (64.71%) MySQL
4 11 (64.71%) Firewall
5 9 (52.94%) TCP/IP
6 8 (47.06%) Puppet
6 8 (47.06%) VLAN
6 8 (47.06%) Nagios
6 8 (47.06%) Ruby
7 7 (41.18%) Clustering
7 7 (41.18%) Internet
7 7 (41.18%) VPN
7 7 (41.18%) JBoss
7 7 (41.18%) Apache
7 7 (41.18%) Tomcat
7 7 (41.18%) Load Balancing
7 7 (41.18%) Relational Database
8 6 (35.29%) Telecoms
9 5 (29.41%) VMware
9 5 (29.41%) Python
9 5 (29.41%) DNS
9 5 (29.41%) VMware ESXi
9 5 (29.41%) Red Hat Enterprise Linux
10 4 (23.53%) Amazon AWS
10 4 (23.53%) MongoDB
10 4 (23.53%) Apache Cassandra
10 4 (23.53%) NoSQL

CentOS
Top Related IT Skills in Middlesex by Category

For the 6 months to 24 April 2014, IT jobs across the Middlesex region citing CentOS also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited CentOS. Up to 20 skills are shown per category.

Application Platforms
1 7 (41.18%) Apache
1 7 (41.18%) Tomcat
2 4 (23.53%) Jetty
2 4 (23.53%) Cloud Foundry
2 4 (23.53%) OpenStack
3 3 (17.65%) IIS
Cloud Services
1 4 (23.53%) Amazon AWS
1 4 (23.53%) Heroku
1 4 (23.53%) Engine Yard
2 1 (5.88%) Amazon EC2
Communications & Networking
1 11 (64.71%) Firewall
2 9 (52.94%) TCP/IP
3 8 (47.06%) VLAN
4 7 (41.18%) Internet
4 7 (41.18%) VPN
5 5 (29.41%) DNS
6 4 (23.53%) Wireshark
6 4 (23.53%) Cisco ASA
6 4 (23.53%) HSRP
6 4 (23.53%) IPsec
6 4 (23.53%) Wireless
6 4 (23.53%) MPLS
6 4 (23.53%) OSPF
6 4 (23.53%) BGP
6 4 (23.53%) VRRP
7 3 (17.65%) LAN
7 3 (17.65%) Ethernet
7 3 (17.65%) HTTP
8 1 (5.88%) WAN
Database & Business Intelligence
1 11 (64.71%) MySQL
2 7 (41.18%) Relational Database
3 4 (23.53%) MongoDB
3 4 (23.53%) Apache Cassandra
3 4 (23.53%) NoSQL
3 4 (23.53%) RDBMS
4 3 (17.65%) SQL Server
4 3 (17.65%) SQL Server 2008
Development Applications
1 4 (23.53%) Jenkins
1 4 (23.53%) Subversion
General
1 6 (35.29%) Telecoms
2 4 (23.53%) Online Betting
2 4 (23.53%) Games
3 3 (17.65%) Back Office
3 3 (17.65%) Finance
Job Titles
1 9 (52.94%) DevOps Engineer
2 6 (35.29%) Linux Engineer
3 4 (23.53%) Senior Linux Engineer
4 3 (17.65%) Network Engineer
4 3 (17.65%) Systems Engineer
4 3 (17.65%) Applications Support
5 2 (11.76%) Linux Support
5 2 (11.76%) Linux Administrator
5 2 (11.76%) Administrator
6 1 (5.88%) Support Engineer
6 1 (5.88%) Consultant
6 1 (5.88%) Linux Consultant
6 1 (5.88%) Applications Support Engineer
6 1 (5.88%) UNIX Engineer
Libraries, Frameworks & Software Standards
1 4 (23.53%) MCollective
1 4 (23.53%) Web Services
2 3 (17.65%) Middleware
3 2 (11.76%) J2EE
Miscellaneous
1 7 (41.18%) Clustering
2 4 (23.53%) Social Media
2 4 (23.53%) Online Games
2 4 (23.53%) Device Driver
3 2 (11.76%) Computer Science
4 1 (5.88%) Digital Media
Operating Systems
1 17 (100.00%) Linux
2 5 (29.41%) Red Hat Enterprise Linux
3 4 (23.53%) Scientific Linux
3 4 (23.53%) Windows
3 4 (23.53%) Debian
3 4 (23.53%) Ubuntu
4 3 (17.65%) Windows Server 2008
5 1 (5.88%) UNIX
5 1 (5.88%) Oracle Linux
Processes & Methodologies
1 7 (41.18%) Load Balancing
2 4 (23.53%) Continuous Integration
2 4 (23.53%) E-Commerce
2 4 (23.53%) Scrum
3 3 (17.65%) Network Design
3 3 (17.65%) ITIL
3 3 (17.65%) High Availability
3 3 (17.65%) Continuous Improvement
3 3 (17.65%) Change Control
3 3 (17.65%) Performance Tuning
3 3 (17.65%) Problem Management
3 3 (17.65%) Release Management
4 1 (5.88%) Change Management
4 1 (5.88%) Logistics
Programming Languages
1 16 (94.12%) Perl
1 16 (94.12%) Bash Shell
2 8 (47.06%) Ruby
3 5 (29.41%) Python
4 4 (23.53%) Java
4 4 (23.53%) Korn
4 4 (23.53%) Shell Script
Qualifications
1 4 (23.53%) CCNP
1 4 (23.53%) Cisco Certification
2 3 (17.65%) RHCE
Quality Assurance & Compliance
1 4 (23.53%) QA
System Software
1 5 (29.41%) VMware ESXi
2 4 (23.53%) Squid
3 3 (17.65%) XenApp
4 1 (5.88%) Active Directory
4 1 (5.88%) VMware Infrastructure
4 1 (5.88%) XenServer
Systems Management
1 8 (47.06%) Puppet
1 8 (47.06%) Nagios
2 4 (23.53%) Opscode Chef
2 4 (23.53%) Cobbler
3 1 (5.88%) ZABBIX
3 1 (5.88%) Red Hat Spacewalk
Vendors
1 13 (76.47%) Oracle
1 13 (76.47%) Red Hat
2 7 (41.18%) JBoss
3 5 (29.41%) VMware
4 4 (23.53%) ProCurve
4 4 (23.53%) Cisco
4 4 (23.53%) CheckPoint
4 4 (23.53%) Juniper
4 4 (23.53%) HP
5 3 (17.65%) Citrix
5 3 (17.65%) Riverbed
6 2 (11.76%) Foundry
7 1 (5.88%) Sun