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 28 June 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
Oxfordshire / Oxford
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 76 82 65
Rank change year-on-year +6 -17  
Permanent jobs citing CentOS 3 3 14
As % of all permanent IT jobs advertised in Oxford 0.42% 0.40% 1.76%
As % of the Operating Systems category 1.74% 1.33% 5.43%
Number of salaries quoted 3 3 37
Median salary £52,500 £45,000 £42,500
Median salary % change year-on-year +16.66% +5.88%  
90% offered a salary of more than £35,250 £45,000 £32,500
10% offered a salary of more than £58,250 £45,000 £52,500
UK excluding London median salary £45,000 £47,500 £40,000
% change year-on-year -5.26% +18.75%  

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 172 226 258
As % of all permanent IT job vacancies advertised in Oxford 24.19% 30.34% 32.41%
Number of salaries quoted 274 399 723
Median salary £44,750 £45,000 £41,000
Median salary % change year-on-year -0.55% +9.75%  
90% offered a salary of more than £26,875 £24,500 £25,750
10% offered a salary of more than £62,500 £59,350 £61,250
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Oxford

Job postings citing CentOS as a percentage of all IT jobs advertised in Oxford.

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 28 June 2017.

Salary histogram for CentOS in Oxford

For the 6 months to 28 June 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 4 (57.14%) Puppet
3 3 (42.86%) Opscode Chef
3 3 (42.86%) Docker
3 3 (42.86%) Red Hat Enterprise Linux
3 3 (42.86%) CSS
3 3 (42.86%) JavaScript
3 3 (42.86%) HTML
3 3 (42.86%) Red Hat
3 3 (42.86%) DevOps
3 3 (42.86%) SDLC
3 3 (42.86%) Infrastructure Monitoring
4 2 (28.57%) BrowserStack
4 2 (28.57%) Amazon Linux
4 2 (28.57%) Mobile Development
4 2 (28.57%) Apple Swift
4 2 (28.57%) NUnit
4 2 (28.57%) Spring
4 2 (28.57%) Agile Software Development
4 2 (28.57%) Hibernate
4 2 (28.57%) Scrum
4 2 (28.57%) Java
4 2 (28.57%) T-SQL
4 2 (28.57%) Web Services
4 2 (28.57%) SQL Server
4 2 (28.57%) JUnit
4 2 (28.57%) Degree
4 2 (28.57%) JIRA
4 2 (28.57%) Selenium
4 2 (28.57%) Test Scripting

CentOS
Co-occurring 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%) Elasticsearch
1 1 (14.29%) lighttpd
1 1 (14.29%) nginx
Cloud Services
1 2 (28.57%) Amazon AWS
1 2 (28.57%) BrowserStack
1 2 (28.57%) SaaS
Communications & Networking
1 1 (14.29%) Firewall
1 1 (14.29%) LDAP
Database & Business Intelligence
1 2 (28.57%) SQL Server
2 1 (14.29%) InfluxDB
2 1 (14.29%) MariaDB
2 1 (14.29%) MySQL
2 1 (14.29%) PostgreSQL
Development Applications
1 2 (28.57%) Bitbucket
1 2 (28.57%) JIRA
1 2 (28.57%) JUnit
1 2 (28.57%) NUnit
1 2 (28.57%) Selenium
1 2 (28.57%) WebDriver
2 1 (14.29%) Git (software)
2 1 (14.29%) Vagrant
Job Titles
1 3 (42.86%) Administrator
1 3 (42.86%) Developer
1 3 (42.86%) Linux Engineer
1 3 (42.86%) Systems Administrator
2 2 (28.57%) DevOps Engineer
2 2 (28.57%) Java Developer
2 2 (28.57%) Linux Administrator
2 2 (28.57%) Linux DevOps Engineer
2 2 (28.57%) Linux Systems Administrator
2 2 (28.57%) Linux Systems Engineer
2 2 (28.57%) Linux/Unix DevOps
2 2 (28.57%) Systems Engineer
3 1 (14.29%) DevOps Administrator
3 1 (14.29%) DevOps Systems Engineer
3 1 (14.29%) Full Stack Developer
3 1 (14.29%) Linux DevOps Administrator
3 1 (14.29%) Operations Engineer
3 1 (14.29%) PHP Developer
3 1 (14.29%) Unix Administrator
3 1 (14.29%) Unix Systems Administrator
Libraries, Frameworks & Software Standards
1 3 (42.86%) CSS
1 3 (42.86%) 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
2 1 (14.29%) Greenfield Project
Operating Systems
1 7 (100.00%) Linux
2 3 (42.86%) Red Hat Enterprise Linux
3 2 (28.57%) Amazon Linux
3 2 (28.57%) Android
3 2 (28.57%) Apple iOS
4 1 (14.29%) FreeBSD
4 1 (14.29%) Unix
Processes & Methodologies
1 3 (42.86%) DevOps
1 3 (42.86%) Infrastructure Monitoring
1 3 (42.86%) SDLC
2 2 (28.57%) Agile Software Development
2 2 (28.57%) Mobile Application Development
2 2 (28.57%) Mobile Development
2 2 (28.57%) Scrum
2 2 (28.57%) Test Scripting
3 1 (14.29%) Continuous Integration
3 1 (14.29%) OO
3 1 (14.29%) OO PHP
3 1 (14.29%) TDD
3 1 (14.29%) Test Automation
3 1 (14.29%) Web Development
Programming Languages
1 3 (42.86%) JavaScript
2 2 (28.57%) Apple Swift
2 2 (28.57%) HQL
2 2 (28.57%) Java
2 2 (28.57%) T-SQL
3 1 (14.29%) Bash Shell
3 1 (14.29%) Perl
3 1 (14.29%) PHP
3 1 (14.29%) Python
3 1 (14.29%) SQL
Qualifications
1 2 (28.57%) Degree
System Software
1 3 (42.86%) Docker
2 1 (14.29%) Postfix
2 1 (14.29%) Varnish
Systems Management
1 4 (57.14%) Puppet
2 3 (42.86%) Opscode Chef
3 1 (14.29%) Ansible
3 1 (14.29%) Cacti
3 1 (14.29%) Nagios
Vendors
1 3 (42.86%) Red Hat
2 2 (28.57%) Microsoft
2 2 (28.57%) Twitter