Period
to 23 February 2018

The following table provides summary statistics for permanent job vacancies advertised in Birmingham 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 23 February 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
West Midlands > Birmingham
6 months to
23 Feb 2018
Same period 2017 Same period 2016
Rank 171 196 177
Rank change year-on-year +25 -19 -2
Permanent jobs citing CentOS 16 8 17
As % of all permanent IT jobs advertised in Birmingham 0.44% 0.19% 0.41%
As % of the Operating Systems category 2.25% 1.11% 2.06%
Number of salaries quoted 15 8 16
Birmingham median annual salary £42,500 £67,500 £37,500
Median salary % change year-on-year -37.04% +80.00% +15.38%
10th Percentile £30,500 £57,375 £31,875
90th Percentile £55,500 £71,625 £54,375
West Midlands median annual salary £39,000 £50,000 £41,500
% change year-on-year -22.00% +20.48% +27.69%

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 Birmingham with a requirement for operating system skills.

All Operating Systems
Birmingham
Permanent vacancies with a requirement for operating system skills 712 719 826
As % of all permanent IT jobs advertised in Birmingham 19.42% 17.33% 20.11%
Number of salaries quoted 601 599 709
Birmingham median annual salary £40,000 £37,500 £37,500
Median salary % change year-on-year +6.67% - -
10th Percentile £24,000 £24,000 £23,000
90th Percentile £60,250 £61,250 £55,000
West Midlands median annual salary £35,500 £36,000 £37,500
% change year-on-year -1.39% -4.00% +7.14%

CentOS
Job Vacancy Trend in Birmingham

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

Job vacancy trend for CentOS in Birmingham

CentOS
Salary Trend in Birmingham

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

Salary trend for CentOS in Birmingham

CentOS
Salary Histogram in Birmingham

The salary distribution of IT jobs citing CentOS in Birmingham over the 6 months to 23 February 2018.

Salary histogram for CentOS in Birmingham

For the 6 months to 23 February 2018, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Birmingham region with a requirement for CentOS.

1 16 (100.00%) Linux
2 13 (81.25%) VMware
3 10 (62.50%) Windows
3 10 (62.50%) Apache
3 10 (62.50%) Windows Server
4 9 (56.25%) Microsoft
4 9 (56.25%) Firewall
4 9 (56.25%) VMware Infrastructure
5 8 (50.00%) Clustering
5 8 (50.00%) Cisco
5 8 (50.00%) Active Directory
5 8 (50.00%) Juniper
5 8 (50.00%) Red Hat
5 8 (50.00%) SQL Server
5 8 (50.00%) vSphere
6 7 (43.75%) Bash Shell
6 7 (43.75%) Handset
6 7 (43.75%) VMware ESXi
6 7 (43.75%) SQL Server 2012
6 7 (43.75%) Business Continuity Planning
6 7 (43.75%) vCenter Server
6 7 (43.75%) Tomcat
6 7 (43.75%) Shell Script
6 7 (43.75%) Business Continuity
6 7 (43.75%) Disaster Recovery
6 7 (43.75%) SQL Server 2008
7 5 (31.25%) Ubuntu
7 5 (31.25%) MySQL
7 5 (31.25%) Docker
7 5 (31.25%) DevOps

CentOS
Co-occurring IT Skills in Birmingham 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 10 (62.50%) Apache
2 7 (43.75%) Tomcat
3 3 (18.75%) nginx
3 3 (18.75%) OpenStack
Applications
1 2 (12.50%) Microsoft Excel
1 2 (12.50%) Spreadsheet
Cloud Services
1 2 (12.50%) Amazon AWS
1 2 (12.50%) Amazon CloudWatch
1 2 (12.50%) AWS CloudFormation
1 2 (12.50%) Datadog
1 2 (12.50%) Google Cloud Platform
1 2 (12.50%) Microsoft Azure
Communications & Networking
1 9 (56.25%) Firewall
2 4 (25.00%) SAN
3 1 (6.25%) LAN
3 1 (6.25%) SSL
3 1 (6.25%) VPN
3 1 (6.25%) WAN
Database & Business Intelligence
1 8 (50.00%) SQL Server
2 7 (43.75%) SQL Server 2008
2 7 (43.75%) SQL Server 2012
3 5 (31.25%) MySQL
4 2 (12.50%) Data Warehouse
Development Applications
1 5 (31.25%) Jenkins
2 3 (18.75%) Git (software)
3 2 (12.50%) Atlassian Bamboo
3 2 (12.50%) Travis CI
3 2 (12.50%) Vagrant
General
1 2 (12.50%) Finance
Job Titles
1 8 (50.00%) Analyst
1 8 (50.00%) Technical Analyst
2 5 (31.25%) Administrator
2 5 (31.25%) DevOps Engineer
3 3 (18.75%) DevOps Administrator
3 3 (18.75%) DevOps Systems Engineer
3 3 (18.75%) Linux Administrator
3 3 (18.75%) Linux DevOps Administrator
3 3 (18.75%) Linux DevOps Engineer
3 3 (18.75%) Linux Engineer
3 3 (18.75%) Linux Systems Administrator
3 3 (18.75%) Linux Systems Engineer
3 3 (18.75%) Linux/Unix DevOps
3 3 (18.75%) Nagios Administrator
3 3 (18.75%) Nagios Engineer
3 3 (18.75%) Systems Administrator
3 3 (18.75%) Systems Engineer
3 3 (18.75%) Ubuntu Administrator
3 3 (18.75%) Ubuntu Engineer
4 2 (12.50%) DBA
Libraries, Frameworks & Software Standards
1 2 (12.50%) Elastic Stack
1 2 (12.50%) HTML
1 2 (12.50%) XML
Miscellaneous
1 8 (50.00%) Clustering
2 7 (43.75%) Handset
3 4 (25.00%) Linux Command Line
4 3 (18.75%) Data Centre
5 2 (12.50%) Analytical Skills
6 1 (6.25%) iPad
Operating Systems
1 16 (100.00%) Linux
2 10 (62.50%) Windows
2 10 (62.50%) Windows Server
3 5 (31.25%) Ubuntu
4 3 (18.75%) Red Hat Enterprise Linux
5 2 (12.50%) DC/OS
5 2 (12.50%) Windows Server 2008
Processes & Methodologies
1 7 (43.75%) Business Continuity
1 7 (43.75%) Business Continuity Planning
1 7 (43.75%) Disaster Recovery
2 5 (31.25%) DevOps
3 3 (18.75%) Information Security
3 3 (18.75%) Proactive Monitoring
3 3 (18.75%) Risk Management
3 3 (18.75%) Root Cause Analysis
4 2 (12.50%) Agile Software Development
4 2 (12.50%) Analytics
4 2 (12.50%) Business Intelligence
4 2 (12.50%) Capacity Planning
4 2 (12.50%) Configuration Management
4 2 (12.50%) Continuous Integration
4 2 (12.50%) Open Source
4 2 (12.50%) SDLC
4 2 (12.50%) Server Monitoring
4 2 (12.50%) Service Design
5 1 (6.25%) Security Hardening
5 1 (6.25%) Server Virtualisation
Programming Languages
1 7 (43.75%) Bash Shell
1 7 (43.75%) Shell Script
2 2 (12.50%) JavaScript
2 2 (12.50%) PHP
2 2 (12.50%) Python
2 2 (12.50%) SQL
2 2 (12.50%) VBA
Qualifications
1 4 (25.00%) CCNA
1 4 (25.00%) Cisco Certification
1 4 (25.00%) MCSA
1 4 (25.00%) Microsoft Certification
2 2 (12.50%) Security Cleared
Quality Assurance & Compliance
1 3 (18.75%) SLA
System Software
1 9 (56.25%) VMware Infrastructure
2 8 (50.00%) Active Directory
2 8 (50.00%) vSphere
3 7 (43.75%) VMware ESXi
4 5 (31.25%) Docker
5 3 (18.75%) KVM
6 2 (12.50%) Hyper-V
6 2 (12.50%) Virtual Machines
6 2 (12.50%) VirtualBox
7 1 (6.25%) Firmware
Systems Management
1 7 (43.75%) vCenter Server
2 5 (31.25%) Puppet
3 3 (18.75%) Nagios
4 2 (12.50%) Ansible
4 2 (12.50%) Docker Swarm
4 2 (12.50%) Kubernetes
4 2 (12.50%) Opscode Chef
4 2 (12.50%) Packer
4 2 (12.50%) Terraform
5 1 (6.25%) SELinux
Vendors
1 13 (81.25%) VMware
2 9 (56.25%) Microsoft
3 8 (50.00%) Cisco
3 8 (50.00%) Juniper
3 8 (50.00%) Red Hat
4 2 (12.50%) Google
4 2 (12.50%) New Relic
4 2 (12.50%) Splunk
5 1 (6.25%) SonicWALL