The following table provides summary statistics for permanent job vacancies advertised in Warwickshire 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 27 June 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
West Midlands / Warwickshire
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 66 75 85
Rank change year-on-year +9 +10  
Permanent jobs citing CentOS 9 6 1
As % of all permanent IT jobs advertised in Warwickshire 1.42% 0.95% 0.12%
As % of the Operating Systems category 7.09% 3.41% 0.53%
Number of salaries quoted 8 1 1
Median salary £31,250 £52,500 £45,000
Median salary % change year-on-year -40.47% +16.66%  
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 Warwickshire with a requirement for operating system skills.

Operating System Skills
Warwickshire
Permanent job vacancies with a requirement for operating system skills 127 176 188
As % of all permanent IT job vacancies advertised in Warwickshire 19.97% 27.76% 22.60%
Number of salaries quoted 117 130 175
Median salary £31,500 £32,500 £33,000
Median salary % change year-on-year -3.07% -1.51%  
90% offered a salary of more than £25,000 £22,500 £24,000
10% offered a salary of more than £40,000 £52,300 £55,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in Warwickshire

The job posting trend of jobs advertised in Warwickshire 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 Warwickshire

CentOS
Salary Trend in Warwickshire

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

Salary trend for CentOS in Warwickshire

CentOS
Salary Histogram in Warwickshire

The salary distribution of IT jobs citing CentOS in Warwickshire over the 3 months to 27 June 2017.

Salary histogram for CentOS in Warwickshire

For the 6 months to 27 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 Warwickshire region with a requirement for CentOS.

1 22 (100.00%) Linux
1 22 (100.00%) Bash Shell
2 13 (59.09%) LEMP Stack
2 13 (59.09%) LAMP
3 12 (54.55%) Windows
3 12 (54.55%) DNS
3 12 (54.55%) Mac OS X
3 12 (54.55%) Linux Command Line
4 11 (50.00%) Ubuntu
5 10 (45.45%) Python
5 10 (45.45%) Ruby
5 10 (45.45%) DevOps
6 9 (40.91%) Analytical Skills
6 9 (40.91%) Mesos
6 9 (40.91%) Microservices
6 9 (40.91%) RESTful
6 9 (40.91%) Scala
6 9 (40.91%) Amazon AWS
6 9 (40.91%) Puppet
6 9 (40.91%) Apache Cassandra
6 9 (40.91%) VirtualBox
6 9 (40.91%) Node.js
6 9 (40.91%) Kafka
6 9 (40.91%) Vagrant
6 9 (40.91%) HornetQ
6 9 (40.91%) New Relic
6 9 (40.91%) StatsD
6 9 (40.91%) Docker
6 9 (40.91%) Terraform
6 9 (40.91%) Software Engineering

CentOS
Co-occurring IT Skills in Warwickshire 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 (4.55%) Apache
1 1 (4.55%) nginx
Cloud Services
1 9 (40.91%) Amazon AWS
1 9 (40.91%) AWS CloudFormation
Communications & Networking
1 12 (54.55%) DNS
Database & Business Intelligence
1 9 (40.91%) Apache Cassandra
2 1 (4.55%) MySQL
2 1 (4.55%) PostgreSQL
Development Applications
1 9 (40.91%) Git (software)
1 9 (40.91%) Vagrant
Job Titles
1 10 (45.45%) Administrator
1 10 (45.45%) Systems Administrator
2 9 (40.91%) DevOps Engineer
2 9 (40.91%) Senior DevOps
2 9 (40.91%) Senior DevOps Engineer
3 7 (31.82%) Linux Administrator
3 7 (31.82%) Linux Systems Administrator
4 1 (4.55%) 1st Line Engineer
4 1 (4.55%) IT Engineer
4 1 (4.55%) Linux Engineer
4 1 (4.55%) Linux Systems Engineer
4 1 (4.55%) Systems Engineer
Libraries, Frameworks & Software Standards
1 13 (59.09%) LAMP
1 13 (59.09%) LEMP Stack
2 9 (40.91%) ActiveMQ
2 9 (40.91%) HornetQ
2 9 (40.91%) HTML
2 9 (40.91%) JMS
2 9 (40.91%) Kafka
2 9 (40.91%) Node.js
2 9 (40.91%) RESTful
2 9 (40.91%) Web Services
3 1 (4.55%) LAPP Stack
Miscellaneous
1 12 (54.55%) Linux Command Line
2 9 (40.91%) Analytical Skills
Operating Systems
1 22 (100.00%) Linux
2 12 (54.55%) Mac OS X
2 12 (54.55%) Windows
3 11 (50.00%) Ubuntu
4 1 (4.55%) Debian
4 1 (4.55%) Fedora
4 1 (4.55%) openSUSE
Processes & Methodologies
1 10 (45.45%) DevOps
2 9 (40.91%) Agile Software Development
2 9 (40.91%) Configuration Management
2 9 (40.91%) Continuous Delivery
2 9 (40.91%) Continuous Integration
2 9 (40.91%) Microservices
2 9 (40.91%) Scrum
2 9 (40.91%) Software Engineering
2 9 (40.91%) Test Automation
3 1 (4.55%) Open Source
Programming Languages
1 22 (100.00%) Bash Shell
2 10 (45.45%) Python
2 10 (45.45%) Ruby
3 9 (40.91%) Groovy
3 9 (40.91%) Java
3 9 (40.91%) JavaScript
3 9 (40.91%) Scala
System Software
1 9 (40.91%) Docker
1 9 (40.91%) VirtualBox
1 9 (40.91%) VMware Infrastructure
Systems Management
1 9 (40.91%) Consul
1 9 (40.91%) Docker Swarm
1 9 (40.91%) Kubernetes
1 9 (40.91%) Mesos
1 9 (40.91%) Nagios
1 9 (40.91%) Puppet
1 9 (40.91%) StatsD
1 9 (40.91%) Terraform
Vendors
1 9 (40.91%) New Relic
1 9 (40.91%) VMware