The following table provides summary statistics for permanent job vacancies advertised in Oxford with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 3 months to 22 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
22 Mar 2017
Same period 2016 Same period 2015
CentOS Linux
Oxfordshire / Oxford
Rank 70 66 56
Rank change year-on-year -4 -10  
Permanent jobs citing CentOS 4 13 20
As % of all permanent IT jobs advertised in Oxford 0.58% 2.02% 2.82%
As % of the Operating Systems category 2.07% 5.94% 9.22%
Number of salaries quoted 4 13 18
Median salary £35,000 £45,000 £43,750
Median salary % change year-on-year -22.22% +2.85%  
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year - +5.88%  

CentOS is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Oxford with a requirement for operating system skills.

Operating System Skills
Oxford
Permanent job vacancies with a requirement for operating system skills 193 219 217
As % of all permanent IT job vacancies advertised in Oxford 28.09% 33.95% 30.65%
Number of salaries quoted 184 187 179
Median salary £40,000 £45,000 £43,000
Median salary % change year-on-year -11.11% +4.65%  
90% offered a salary of more than £25,250 £27,500 £27,500
10% offered a salary of more than £60,000 £60,000 £57,500
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Oxford

The job posting trend of jobs advertised in Oxford citing CentOS as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for CentOS in Oxford

CentOS
Salary Trend in Oxford

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

Salary trend for CentOS in Oxford

CentOS
Salary Histogram in Oxford

The salary distribution of IT jobs citing CentOS in Oxford over the 3 months to 22 March 2017.

Salary histogram for CentOS in Oxford

CentOS
Top 30 Related IT Skills in Oxford

For the 6 months to 22 March 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 Oxford region with a requirement for CentOS.

1 7 (100.00%) Linux
2 5 (71.43%) HTML
2 5 (71.43%) JavaScript
2 5 (71.43%) CSS
2 5 (71.43%) Agile Software Development
3 4 (57.14%) Puppet
4 3 (42.86%) PHP
4 3 (42.86%) OO
4 3 (42.86%) MySQL
4 3 (42.86%) IntelliJ
4 3 (42.86%) Vagrant
4 3 (42.86%) OO PHP
4 3 (42.86%) SDLC
5 2 (28.57%) DevOps
5 2 (28.57%) Amazon Linux
5 2 (28.57%) Mobile Development
5 2 (28.57%) Apple Swift
5 2 (28.57%) RESTful
5 2 (28.57%) Amazon AWS
5 2 (28.57%) AngularJS
5 2 (28.57%) HQL
5 2 (28.57%) Twitter Bootstrap
5 2 (28.57%) Mobile App
5 2 (28.57%) Mobile Application Development
5 2 (28.57%) Microsoft
5 2 (28.57%) Hibernate
5 2 (28.57%) Scrum
5 2 (28.57%) SQL Server
5 2 (28.57%) JUnit
5 2 (28.57%) Java

CentOS
Top Related IT Skills in Oxford 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 1 (14.29%) Apache
1 1 (14.29%) lighttpd
1 1 (14.29%) nginx
Business Applications
1 1 (14.29%) SAP Oil and Gas
Cloud Services
1 2 (28.57%) Amazon AWS
1 2 (28.57%) SaaS
Communications & Networking
1 1 (14.29%) LDAP
Database & Business Intelligence
1 3 (42.86%) MySQL
2 2 (28.57%) SQL Server
3 1 (14.29%) InfluxDB
3 1 (14.29%) MariaDB
3 1 (14.29%) PostgreSQL
Development Applications
1 3 (42.86%) IntelliJ
1 3 (42.86%) Vagrant
2 2 (28.57%) Bitbucket
2 2 (28.57%) Git (software)
2 2 (28.57%) JIRA
2 2 (28.57%) JUnit
2 2 (28.57%) NUnit
2 2 (28.57%) Selenium
2 2 (28.57%) WebDriver
General
1 1 (14.29%) Electronics
1 1 (14.29%) Finance
1 1 (14.29%) Manufacturing
1 1 (14.29%) Marketing
1 1 (14.29%) Music Industry
1 1 (14.29%) Telecoms
Job Titles
1 5 (71.43%) Developer
2 3 (42.86%) PHP Developer
3 2 (28.57%) Java Developer
4 1 (14.29%) Administrator
4 1 (14.29%) Applications Developer
4 1 (14.29%) DevOps Engineer
4 1 (14.29%) Linux DevOps Engineer
4 1 (14.29%) Linux Engineer
4 1 (14.29%) Linux/Unix DevOps
4 1 (14.29%) Operations Engineer
4 1 (14.29%) PHP Web Applications Developer
4 1 (14.29%) Systems Administrator
4 1 (14.29%) Unix Administrator
4 1 (14.29%) Unix Systems Administrator
4 1 (14.29%) Web Applications Developer
Libraries, Frameworks & Software Standards
1 5 (71.43%) CSS
1 5 (71.43%) HTML
2 2 (28.57%) AngularJS
2 2 (28.57%) Hibernate
2 2 (28.57%) RESTful
2 2 (28.57%) Spring
2 2 (28.57%) Twitter Bootstrap
2 2 (28.57%) Web Services
3 1 (14.29%) LAPP Stack
Miscellaneous
1 2 (28.57%) Mobile App
Operating Systems
1 7 (100.00%) Linux
2 2 (28.57%) Amazon Linux
2 2 (28.57%) Android
2 2 (28.57%) Apple iOS
3 1 (14.29%) FreeBSD
3 1 (14.29%) Red Hat Enterprise Linux
3 1 (14.29%) Unix
Processes & Methodologies
1 5 (71.43%) Agile Software Development
2 3 (42.86%) OO
2 3 (42.86%) OO PHP
2 3 (42.86%) SDLC
3 2 (28.57%) DevOps
3 2 (28.57%) Mobile Application Development
3 2 (28.57%) Mobile Development
3 2 (28.57%) Scrum
3 2 (28.57%) Test Scripting
3 2 (28.57%) Web Development
4 1 (14.29%) Automated Testing
4 1 (14.29%) Business Intelligence
4 1 (14.29%) Continuous Integration
4 1 (14.29%) Digital Marketing
4 1 (14.29%) Infrastructure Monitoring
4 1 (14.29%) OOP
4 1 (14.29%) Programme Management
4 1 (14.29%) Refactoring
4 1 (14.29%) TDD
Programming Languages
1 5 (71.43%) JavaScript
2 3 (42.86%) PHP
3 2 (28.57%) Apple Swift
3 2 (28.57%) HQL
3 2 (28.57%) Java
3 2 (28.57%) T-SQL
4 1 (14.29%) Bash Shell
4 1 (14.29%) Perl
4 1 (14.29%) Python
Qualifications
1 2 (28.57%) Degree
System Software
1 1 (14.29%) Docker
1 1 (14.29%) Postfix
1 1 (14.29%) Varnish
Systems Management
1 4 (57.14%) Puppet
2 1 (14.29%) Cacti
2 1 (14.29%) Nagios
2 1 (14.29%) Opscode Chef
Vendors
1 2 (28.57%) Microsoft
1 2 (28.57%) Twitter
2 1 (14.29%) Red Hat
2 1 (14.29%) SAP