Period
to 16 August 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 16 August 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
West Midlands > Birmingham
6 months to
16 Aug 2018
Same period 2017 Same period 2016
Rank 182 183 206
Rank change year-on-year +1 +23 -24
Permanent jobs citing CentOS 17 18 7
As % of all permanent IT jobs advertised in Birmingham 0.44% 0.46% 0.15%
As % of the Operating Systems category 2.62% 2.32% 0.82%
Number of salaries quoted 19 16 3
Birmingham median annual salary £42,500 £35,000 £62,500
Median salary % change year-on-year +21.43% -44.00% +4.17%
10th Percentile £38,500 £32,500 £37,250
90th Percentile £57,500 £44,625 £63,750
West Midlands median annual salary £42,500 £35,000 £45,000
% change year-on-year +21.43% -22.22% +5.88%

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 648 777 856
As % of all permanent IT jobs advertised in Birmingham 16.78% 19.79% 17.95%
Number of salaries quoted 516 682 677
Birmingham median annual salary £40,000 £37,500 £36,500
Median salary % change year-on-year +6.67% +2.74% -3.95%
10th Percentile £22,500 £26,250 £21,250
90th Percentile £60,000 £54,425 £57,500
West Midlands median annual salary £38,750 £36,500 £35,000
% change year-on-year +6.16% +4.29% -3.65%

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 16 August 2018.

Salary histogram for CentOS in Birmingham

For the 6 months to 16 August 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 17 (100.00%) Linux
2 13 (76.47%) MySQL
3 12 (70.59%) VMware
4 10 (58.82%) Windows
4 10 (58.82%) Windows Server
5 9 (52.94%) Amazon AWS
6 7 (41.18%) Load Balancing
6 7 (41.18%) SQL
6 7 (41.18%) Migration
6 7 (41.18%) Infrastructure Engineering
7 6 (35.29%) Business Continuity
8 5 (29.41%) Ubuntu
8 5 (29.41%) VMware Infrastructure
8 5 (29.41%) Puppet
8 5 (29.41%) Jenkins
8 5 (29.41%) Docker
8 5 (29.41%) DevOps
9 4 (23.53%) High Availability
9 4 (23.53%) nginx
9 4 (23.53%) Clustering
10 3 (17.65%) Red Hat Enterprise Linux
10 3 (17.65%) Nagios
10 3 (17.65%) Red Hat
10 3 (17.65%) Apache
10 3 (17.65%) SSL
10 3 (17.65%) OpenStack
10 3 (17.65%) KVM
10 3 (17.65%) Git (software)
11 2 (11.76%) Server Virtualisation
11 2 (11.76%) Virtual Environments

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 4 (23.53%) nginx
2 3 (17.65%) Apache
2 3 (17.65%) OpenStack
Cloud Services
1 9 (52.94%) Amazon AWS
2 1 (5.88%) Amazon EC2
2 1 (5.88%) Amazon S3
2 1 (5.88%) AWS CloudFormation
2 1 (5.88%) CloudFront
2 1 (5.88%) Microsoft Azure
Communications & Networking
1 3 (17.65%) SSL
2 2 (11.76%) Firewall
2 2 (11.76%) LAN
2 2 (11.76%) SAN
2 2 (11.76%) VPN
2 2 (11.76%) WAN
3 1 (5.88%) DNS
3 1 (5.88%) HTTP
3 1 (5.88%) HTTPS
3 1 (5.88%) SMS
Database & Business Intelligence
1 13 (76.47%) MySQL
2 2 (11.76%) MariaDB
3 1 (5.88%) PostgreSQL
Development Applications
1 5 (29.41%) Jenkins
2 3 (17.65%) Git (software)
3 1 (5.88%) Atlassian Bamboo
3 1 (5.88%) Travis CI
General
1 1 (5.88%) Automotive
Job Titles
1 7 (41.18%) Infrastructure Engineer
2 5 (29.41%) Administrator
2 5 (29.41%) DevOps Engineer
2 5 (29.41%) Linux DevOps Engineer
2 5 (29.41%) Linux Engineer
2 5 (29.41%) Linux/Unix DevOps
2 5 (29.41%) Systems Administrator
3 4 (23.53%) Linux Administrator
3 4 (23.53%) Linux Systems Administrator
4 3 (17.65%) DevOps Administrator
4 3 (17.65%) DevOps Systems Engineer
4 3 (17.65%) Linux DevOps Administrator
4 3 (17.65%) Linux Systems Engineer
4 3 (17.65%) Nagios Administrator
4 3 (17.65%) Nagios Engineer
4 3 (17.65%) Systems Engineer
4 3 (17.65%) Ubuntu Administrator
4 3 (17.65%) Ubuntu Engineer
5 2 (11.76%) DBA
5 2 (11.76%) Developer
Libraries, Frameworks & Software Standards
1 1 (5.88%) LEMP Stack
Miscellaneous
1 4 (23.53%) Clustering
2 2 (11.76%) Computer Science
2 2 (11.76%) Replication
Operating Systems
1 17 (100.00%) Linux
2 10 (58.82%) Windows
2 10 (58.82%) Windows Server
3 5 (29.41%) Ubuntu
4 3 (17.65%) Red Hat Enterprise Linux
5 1 (5.88%) DC/OS
5 1 (5.88%) Debian
5 1 (5.88%) Fedora
5 1 (5.88%) Windows Server 2008
Processes & Methodologies
1 7 (41.18%) Infrastructure Engineering
1 7 (41.18%) Load Balancing
1 7 (41.18%) Migration
2 6 (35.29%) Business Continuity
3 5 (29.41%) DevOps
4 4 (23.53%) High Availability
5 2 (11.76%) Agile Software Development
5 2 (11.76%) Configuration Management
5 2 (11.76%) Continuous Integration
5 2 (11.76%) Network Design
5 2 (11.76%) Network Virtualisation
5 2 (11.76%) Security Hardening
5 2 (11.76%) Server Virtualisation
5 2 (11.76%) Virtual Environments
6 1 (5.88%) Auto-Scaling
6 1 (5.88%) Continuous Delivery
6 1 (5.88%) Microservices
6 1 (5.88%) Process Improvement
6 1 (5.88%) Scrum
6 1 (5.88%) SDLC
Programming Languages
1 7 (41.18%) SQL
2 2 (11.76%) PHP
2 2 (11.76%) Python
3 1 (5.88%) Bash Shell
3 1 (5.88%) Perl
3 1 (5.88%) Ruby
Qualifications
1 2 (11.76%) Computer Science Degree
1 2 (11.76%) Degree
2 1 (5.88%) AWS Certification
Quality Assurance & Compliance
1 1 (5.88%) GDPR
1 1 (5.88%) ISO/IEC 27001
1 1 (5.88%) SLA
System Software
1 5 (29.41%) Docker
1 5 (29.41%) VMware Infrastructure
2 3 (17.65%) KVM
3 2 (11.76%) Active Directory
3 2 (11.76%) Firmware
4 1 (5.88%) Hyper-V
4 1 (5.88%) VirtualBox
4 1 (5.88%) VMware ESXi
Systems Management
1 5 (29.41%) Puppet
2 3 (17.65%) Nagios
3 2 (11.76%) Ansible
3 2 (11.76%) Galera Cluster
3 2 (11.76%) Opscode Chef
3 2 (11.76%) SELinux
4 1 (5.88%) Docker Swarm
4 1 (5.88%) Kubernetes
Vendors
1 12 (70.59%) VMware
2 3 (17.65%) Red Hat
3 2 (11.76%) Microsoft
3 2 (11.76%) SonicWALL
4 1 (5.88%) SaltStack