Period
to 20 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Liverpool with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 6 months to 20 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
Merseyside > Liverpool
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 62 75 61
Rank change year-on-year +13 -14 +18
Permanent jobs citing CentOS 11 20 10
As % of all permanent IT jobs advertised in Liverpool 1.44% 1.89% 1.48%
As % of the Operating Systems category 6.83% 5.76% 5.81%
Number of salaries quoted 9 14 9
Liverpool median annual salary £55,000 £36,000 £30,000
Median salary % change year-on-year +52.78% +20.00% -33.33%
10th Percentile £45,350 £31,025 £24,000
90th Percentile £67,500 £39,625 £32,500
Merseyside median annual salary £52,500 £36,000 £30,000
% change year-on-year +45.83% +20.00% -33.33%

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

All Operating Systems
Liverpool
Permanent vacancies with a requirement for operating system skills 161 347 172
As % of all permanent IT jobs advertised in Liverpool 21.02% 32.77% 25.44%
Number of salaries quoted 109 211 126
Liverpool median annual salary £40,000 £40,000 £35,000
Median salary % change year-on-year - +14.29% -6.67%
10th Percentile £25,750 £25,000 £21,875
90th Percentile £60,000 £57,500 £52,500
Merseyside median annual salary £40,000 £40,000 £34,000
% change year-on-year - +17.65% -2.86%

CentOS
Job Vacancy Trend in Liverpool

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

Job vacancy trend for CentOS in Liverpool

CentOS
Salary Trend in Liverpool

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

Salary trend for CentOS in Liverpool

CentOS
Salary Histogram in Liverpool

The salary distribution of IT jobs citing CentOS in Liverpool over the 6 months to 20 November 2017.

Salary histogram for CentOS in Liverpool

For the 6 months to 20 November 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 Liverpool region with a requirement for CentOS.

1 11 (100.00%) Linux
2 9 (81.82%) Tomcat
2 9 (81.82%) Oracle
2 9 (81.82%) SQL Server
2 9 (81.82%) Unix
2 9 (81.82%) Ubuntu
2 9 (81.82%) Bash Shell
2 9 (81.82%) Jenkins
3 8 (72.73%) Ansible
3 8 (72.73%) Web Services
3 8 (72.73%) Git (software)
3 8 (72.73%) MongoDB
3 8 (72.73%) Python
3 8 (72.73%) Apache
3 8 (72.73%) MySQL
3 8 (72.73%) Configuration Management
3 8 (72.73%) LAMP
3 8 (72.73%) SUSE
4 7 (63.64%) RabbitMQ
4 7 (63.64%) AMQP
4 7 (63.64%) Elasticsearch
4 7 (63.64%) Kafka
5 5 (45.45%) Line Management
5 5 (45.45%) Problem Management
6 4 (36.36%) DevOps
7 3 (27.27%) Opscode Chef
7 3 (27.27%) Puppet
7 3 (27.27%) Mentoring
7 3 (27.27%) Red Hat
8 2 (18.18%) VMware

CentOS
Co-occurring IT Skills in Liverpool 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 9 (81.82%) Tomcat
2 8 (72.73%) Apache
3 7 (63.64%) Elasticsearch
4 1 (9.09%) WebSphere
Business Applications
1 1 (9.09%) Oracle Applications
Cloud Services
1 1 (9.09%) Amazon AWS
1 1 (9.09%) Amazon CloudWatch
1 1 (9.09%) AWS CloudFormation
1 1 (9.09%) GitHub
1 1 (9.09%) Microsoft Azure
Communications & Networking
1 7 (63.64%) AMQP
2 1 (9.09%) Fibre Channel
2 1 (9.09%) FIX Connectivity
2 1 (9.09%) iSCSI
2 1 (9.09%) TCP/IP
Database & Business Intelligence
1 9 (81.82%) SQL Server
2 8 (72.73%) MongoDB
2 8 (72.73%) MySQL
3 1 (9.09%) Big Data
3 1 (9.09%) Hadoop
Development Applications
1 9 (81.82%) Jenkins
2 8 (72.73%) Git (software)
3 1 (9.09%) Ant
3 1 (9.09%) Apache Ivy
3 1 (9.09%) Bitbucket
3 1 (9.09%) Gradle
3 1 (9.09%) JIRA
3 1 (9.09%) JUnit
3 1 (9.09%) Maven
3 1 (9.09%) Selenium
3 1 (9.09%) SonarQube
General
1 2 (18.18%) Retail
2 1 (9.09%) Finance
2 1 (9.09%) Marketing
Job Titles
1 5 (45.45%) Linux Engineer
2 3 (27.27%) Applications Specialist
2 3 (27.27%) Database Specialist
2 3 (27.27%) Linux Specialist
3 2 (18.18%) DevOps Engineer
3 2 (18.18%) Linux DevOps Engineer
3 2 (18.18%) Linux/Unix DevOps
4 1 (9.09%) Analyst
4 1 (9.09%) Applications Support
4 1 (9.09%) Linux Support
4 1 (9.09%) Senior Linux Engineer
4 1 (9.09%) Senior Unix Engineer
4 1 (9.09%) Unix Engineer
4 1 (9.09%) Unix Linux Engineer
Libraries, Frameworks & Software Standards
1 8 (72.73%) LAMP
1 8 (72.73%) Web Services
2 7 (63.64%) Kafka
2 7 (63.64%) RabbitMQ
3 1 (9.09%) FIX Protocol
3 1 (9.09%) Hibernate
3 1 (9.09%) Middleware
Operating Systems
1 11 (100.00%) Linux
2 9 (81.82%) Ubuntu
2 9 (81.82%) Unix
3 8 (72.73%) SUSE
4 2 (18.18%) Red Hat Enterprise Linux
4 2 (18.18%) Windows
5 1 (9.09%) AIX
5 1 (9.09%) HPUX
5 1 (9.09%) Windows Server
Processes & Methodologies
1 8 (72.73%) Configuration Management
2 5 (45.45%) Line Management
2 5 (45.45%) Problem Management
3 4 (36.36%) DevOps
4 3 (27.27%) Mentoring
5 2 (18.18%) Performance Tuning
6 1 (9.09%) Agile Software Development
6 1 (9.09%) Build Automation
6 1 (9.09%) Change Control
6 1 (9.09%) Collaborative Working
6 1 (9.09%) Continuous Improvement
6 1 (9.09%) Continuous Integration
6 1 (9.09%) Dependency Management
6 1 (9.09%) Electronic Trading
6 1 (9.09%) High Availability
6 1 (9.09%) Low Latency
6 1 (9.09%) Open Source
6 1 (9.09%) SDLC
6 1 (9.09%) TDD
6 1 (9.09%) Test Automation
Programming Languages
1 9 (81.82%) Bash Shell
2 8 (72.73%) Python
3 1 (9.09%) Java
System Software
1 1 (9.09%) VMware ESXi
1 1 (9.09%) VMware Infrastructure
Systems Management
1 8 (72.73%) Ansible
2 3 (27.27%) Opscode Chef
2 3 (27.27%) Puppet
3 1 (9.09%) CFEngine
3 1 (9.09%) ZABBIX
Vendors
1 9 (81.82%) Oracle
2 3 (27.27%) Red Hat
3 2 (18.18%) VMware
4 1 (9.09%) HP
4 1 (9.09%) IBM
4 1 (9.09%) SaltStack
4 1 (9.09%) TIBCO