The table below looks at the statistics for CentOS skills in IT jobs advertised for the Hertfordshire region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 23 October 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
23 Oct 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 136 122 -
Rank change year-on-year
-14 -
Permanent jobs citing CentOS 9 5 0
As % of all permanent IT jobs located in Hertfordshire 0.38% 0.25% -
As % of the Operating Systems category 1.35% 0.86% -
Number of salaries quoted 9 4 0
Average salary £59,000 £46,250 -
Average salary % change year-on-year
+27.56% -
UK excluding London average salary £40,000 £40,000 £37,500
% change year-on-year
- +6.66%
CentOS
East of England

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

Operating Systems Category
Hertfordshire
Permanent IT job ads with a match in the
Operating Systems category
665 581 936
As % of all permanent IT jobs located in Hertfordshire 28.18% 29.61% 30.42%
Number of salaries quoted 530 448 760
Average salary £40,000 £37,500 £40,500
Average salary % change year-on-year
+6.66% -7.40%
90% offered a salary of more than £19,000 £24,000 £24,000
10% offered a salary of more than £55,000 £52,500 £54,000
UK excluding London average salary £37,500 £37,500 £37,500

CentOS
Jobs Demand Trend in Hertfordshire

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

CentOS Jobs Demand Trend in Hertfordshire

CentOS
Salary Trend in Hertfordshire

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

CentOS Salary Trend in Hertfordshire

CentOS
Salary Histogram in Hertfordshire

This chart provides a salary histogram for IT jobs citing CentOS across the Hertfordshire region over the 3 months to 23 October 2014.

CentOS Salary Histogram in Hertfordshire

CentOS
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing CentOS within the Hertfordshire region over the 3 months to 23 October 2014. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Hemel Hempstead - 2 £45,000 -
Hitchin - 2 £60,000 -
CentOS
East of England

CentOS
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 23 October 2014, IT jobs across the Hertfordshire 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 28 (100.00%) Linux
2 21 (75.00%) Red Hat
3 16 (57.14%) SQL
4 15 (53.57%) Finance
5 12 (42.86%) Apache
5 12 (42.86%) DNS
6 11 (39.29%) MySQL
7 10 (35.71%) CMS
7 10 (35.71%) LAMP
7 10 (35.71%) Windows
8 9 (32.14%) DHCP
8 9 (32.14%) Java
8 9 (32.14%) PostgreSQL
9 8 (28.57%) Online Games
9 8 (28.57%) Online Betting
9 8 (28.57%) Telecoms
9 8 (28.57%) Games
9 8 (28.57%) Service Delivery
9 8 (28.57%) Oracle
9 8 (28.57%) SQL Server
9 8 (28.57%) HTTP
9 8 (28.57%) Oracle HTTP Server
9 8 (28.57%) Tomcat
9 8 (28.57%) E-Commerce
10 7 (25.00%) OOP
10 7 (25.00%) MCSE
10 7 (25.00%) C#
10 7 (25.00%) HTML
10 7 (25.00%) .NET
10 7 (25.00%) MCSD

CentOS
Top Related IT Skills in Hertfordshire by Category

For the 6 months to 23 October 2014, IT jobs across the Hertfordshire 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 12 (42.86%) Apache
2 10 (35.71%) CMS
3 8 (28.57%) Tomcat
3 8 (28.57%) Oracle HTTP Server
4 2 (7.14%) Joomla!
4 2 (7.14%) WordPress
5 1 (3.57%) nginx
5 1 (3.57%) IIS
Applications
1 7 (25.00%) Mingle
Business Applications
1 2 (7.14%) Magento
Communications & Networking
1 12 (42.86%) DNS
2 9 (32.14%) DHCP
3 8 (28.57%) HTTP
4 5 (17.86%) Internet
5 3 (10.71%) SSL
5 3 (10.71%) SAN
5 3 (10.71%) POP3
5 3 (10.71%) SMTP
6 1 (3.57%) FTP
6 1 (3.57%) TCP/IP
6 1 (3.57%) Firewall
6 1 (3.57%) SSH
6 1 (3.57%) IMAP
Database & Business Intelligence
1 11 (39.29%) MySQL
2 9 (32.14%) PostgreSQL
3 8 (28.57%) SQL Server
4 7 (25.00%) RavenDB
4 7 (25.00%) Neo4j
Development Applications
1 7 (25.00%) Visual Studio
1 7 (25.00%) NUnit
1 7 (25.00%) TeamCity
1 7 (25.00%) Git (software)
1 7 (25.00%) MSTest
1 7 (25.00%) Octopus Deploy
General
1 15 (53.57%) Finance
2 8 (28.57%) Games
2 8 (28.57%) Telecoms
2 8 (28.57%) Online Betting
3 6 (21.43%) Marketing
Job Titles
1 16 (57.14%) Systems Administrator
1 16 (57.14%) Administrator
2 11 (39.29%) Linux Systems Administrator
2 11 (39.29%) Linux Administrator
3 9 (32.14%) Senior Systems Administrator
4 8 (28.57%) Senior Linux Administrator
4 8 (28.57%) Senior Linux Systems Administrator
5 7 (25.00%) .NET Developer
5 7 (25.00%) Senior .NET Developer
5 7 (25.00%) Senior Programmer
5 7 (25.00%) .NET Programmer
5 7 (25.00%) Senior .NET Programmer
5 7 (25.00%) Developer
5 7 (25.00%) Senior Developer
5 7 (25.00%) Programmer
6 3 (10.71%) Linux Support
7 2 (7.14%) Linux Support Engineer
7 2 (7.14%) Support Engineer
7 2 (7.14%) Infrastructure Engineer
7 2 (7.14%) Linux Engineer
Libraries, Frameworks & Software Standards
1 10 (35.71%) LAMP
2 7 (25.00%) Silverlight
2 7 (25.00%) RESTful
2 7 (25.00%) ASP.NET MVC
2 7 (25.00%) RabbitMQ
2 7 (25.00%) KnockoutJS
2 7 (25.00%) HTML
2 7 (25.00%) .NET
2 7 (25.00%) ASP.NET
2 7 (25.00%) CSS
2 7 (25.00%) Web Services
Miscellaneous
1 8 (28.57%) Online Games
2 1 (3.57%) Clustering
Operating Systems
1 28 (100.00%) Linux
2 10 (35.71%) Windows
3 6 (21.43%) Red Hat Enterprise Linux
4 2 (7.14%) UNIX
5 1 (3.57%) Ubuntu
5 1 (3.57%) Windows Server 2008
5 1 (3.57%) Windows Server 2012
Processes & Methodologies
1 8 (28.57%) E-Commerce
1 8 (28.57%) Service Delivery
2 7 (25.00%) MVC
2 7 (25.00%) Agile Software Development
2 7 (25.00%) TDD
2 7 (25.00%) Software Engineering
2 7 (25.00%) OOP
2 7 (25.00%) Unit Testing
2 7 (25.00%) BDD
2 7 (25.00%) CQRS
3 2 (7.14%) ITIL
3 2 (7.14%) Service Management
3 2 (7.14%) Enterprise Architecture
4 1 (3.57%) Load Balancing
4 1 (3.57%) Performance Tuning
Programming Languages
1 16 (57.14%) SQL
2 9 (32.14%) Java
3 7 (25.00%) C#
3 7 (25.00%) PowerShell
4 3 (10.71%) PHP
5 2 (7.14%) Perl
5 2 (7.14%) Bash Shell
Qualifications
1 7 (25.00%) MCSD
1 7 (25.00%) MCSE
1 7 (25.00%) Microsoft Certification
1 7 (25.00%) MCTS
2 2 (7.14%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 1 (3.57%) SLA
System Software
1 2 (7.14%) vSphere
2 1 (3.57%) Varnish
2 1 (3.57%) Active Directory
2 1 (3.57%) Sendmail
Systems Management
1 7 (25.00%) Business Desktop Deployment
2 1 (3.57%) Cacti
2 1 (3.57%) Nagios
Vendors
1 21 (75.00%) Red Hat
2 8 (28.57%) Oracle
3 2 (7.14%) HP
3 2 (7.14%) VMware
3 2 (7.14%) 3PAR