Period
to 16 November 2019

The following table provides summary statistics for permanent job vacancies advertised in the East of England 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 November 2019 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > East of England
6 months to
16 Nov 2019
Same period 2018 Same period 2017
Rank 203 272 298
Rank change year-on-year +69 +26 +19
Permanent jobs citing CentOS 66 58 58
As % of all permanent IT jobs advertised in the East of England 0.98% 0.57% 0.48%
As % of the Operating Systems category 3.67% 2.24% 1.80%
Number of salaries quoted 45 38 46
East of England median annual salary £45,000 £43,500 £50,000
Median salary % change year-on-year +3.45% -13.00% +5.26%
10th Percentile £32,500 £33,750 £30,125
90th Percentile £61,500 £72,000 £76,250
England median annual salary £50,000 £55,000 £50,000
% change year-on-year -9.09% +10.00% -

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 the East of England with a requirement for operating system skills.

All Operating Systems
East of England
Permanent vacancies with a requirement for operating system skills 1,798 2,585 3,231
As % of all permanent IT jobs advertised in the East of England 26.61% 25.29% 26.85%
Number of salaries quoted 1,300 1,891 2,655
East of England median annual salary £43,000 £45,000 £42,500
Median salary % change year-on-year -4.44% +5.88% -
10th Percentile £25,000 £25,000 £23,100
90th Percentile £68,750 £70,000 £66,150
England median annual salary £45,000 £47,500 £45,000
% change year-on-year -5.26% +5.56% -

CentOS
Job Vacancy Trend in the East of England

Job postings citing CentOS as a percentage of all IT jobs advertised in the East of England.

Job vacancy trend for CentOS in the East of England

CentOS
Salary Trend in the East of England

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

Salary trend for CentOS in the East of England

CentOS
Salary Histogram in the East of England

The salary distribution of IT jobs citing CentOS in the East of England over the 6 months to 16 November 2019.

Salary histogram for CentOS in the East of England

CentOS
Job Locations in the East of England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the East of England region over the 6 months to 16 November 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Hertfordshire +74 22 £37,500 -47.92% 4
Bedfordshire +12 20 £42,500 +6.25%
Cambridgeshire +34 16 £55,000 +4.76% 1
Suffolk +6 4 £60,000 +11.63% 1
Norfolk +4 4 £35,000 -27.08% 2
CentOS
England

For the 6 months to 16 November 2019, 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 East of England region with a requirement for CentOS.

1 66 (100.00%) Linux
2 43 (65.15%) Ansible
3 33 (50.00%) Python
4 32 (48.48%) nginx
5 30 (45.45%) Puppet
6 25 (37.88%) Kubernetes
7 24 (36.36%) Ruby
8 23 (34.85%) DevOps
8 23 (34.85%) Bash Shell
9 22 (33.33%) Agile Software Development
10 21 (31.82%) PHP
10 21 (31.82%) GCP
11 20 (30.30%) HAProxy
11 20 (30.30%) Red Hat Enterprise Linux
11 20 (30.30%) Git (software)
11 20 (30.30%) Windows
11 20 (30.30%) VMware
12 19 (28.79%) Configuration Management
12 19 (28.79%) TCP/IP
12 19 (28.79%) Terraform
13 18 (27.27%) Elastic Stack
13 18 (27.27%) Red Hat
13 18 (27.27%) Apache
13 18 (27.27%) Ubuntu
13 18 (27.27%) Docker
13 18 (27.27%) Jenkins
13 18 (27.27%) Elasticsearch
13 18 (27.27%) Opscode Chef
14 17 (25.76%) SSL
15 16 (24.24%) logstash

CentOS
Co-occurring IT Skills in the East of England 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 32 (48.48%) nginx
2 18 (27.27%) Apache
2 18 (27.27%) Elasticsearch
3 12 (18.18%) OpenStack
4 8 (12.12%) Tomcat
5 7 (10.61%) Cloud Foundry
5 7 (10.61%) CloudStack
6 6 (9.09%) SharePoint
7 1 (1.52%) Apache Spark
7 1 (1.52%) WebSphere
7 1 (1.52%) WordPress
Applications
1 8 (12.12%) Microsoft Office
2 4 (6.06%) Microsoft Excel
2 4 (6.06%) Microsoft PowerPoint
Cloud Services
1 21 (31.82%) GCP
2 15 (22.73%) Azure
3 14 (21.21%) Office 365
4 11 (16.67%) AWS
5 8 (12.12%) Stackdriver
6 7 (10.61%) AWS CloudFormation
6 7 (10.61%) DigitalOcean
6 7 (10.61%) Heroku
6 7 (10.61%) IaaS
6 7 (10.61%) PaaS
7 5 (7.58%) SaaS
8 4 (6.06%) Dynamics 365
8 4 (6.06%) OpenShift
9 2 (3.03%) OneDrive
Communications & Networking
1 19 (28.79%) TCP/IP
2 17 (25.76%) SSL
3 13 (19.70%) DNS
3 13 (19.70%) Firewall
4 10 (15.15%) HTTP
5 9 (13.64%) Wi-Fi
6 7 (10.61%) VPN
7 6 (9.09%) HTTPS
8 5 (7.58%) Cisco Nexus
8 5 (7.58%) DHCP
8 5 (7.58%) VRRP
9 4 (6.06%) 2.5G
9 4 (6.06%) 2G
9 4 (6.06%) 3G
9 4 (6.06%) 4G
9 4 (6.06%) 5G
9 4 (6.06%) Internet
9 4 (6.06%) NAS
9 4 (6.06%) OpenVPN
9 4 (6.06%) SAN
Database & Business Intelligence
1 16 (24.24%) MongoDB
2 9 (13.64%) PostgreSQL
3 8 (12.12%) Big Data
3 8 (12.12%) MySQL
4 7 (10.61%) Apache Cassandra
5 5 (7.58%) Azure SQL Database
6 4 (6.06%) FileMaker
6 4 (6.06%) Redis
6 4 (6.06%) SQL Server
7 2 (3.03%) Relational Database
8 1 (1.52%) DB2
8 1 (1.52%) MariaDB
Development Applications
1 20 (30.30%) Git (software)
2 18 (27.27%) Jenkins
3 12 (18.18%) Sonatype Nexus
4 10 (15.15%) Artifactory
5 4 (6.06%) Mercurial
6 2 (3.03%) Octopus Deploy
6 2 (3.03%) Visual Studio Team System
7 1 (1.52%) Bitbucket
7 1 (1.52%) git-flow
7 1 (1.52%) JIRA
7 1 (1.52%) JUnit
7 1 (1.52%) Subversion
General
1 4 (6.06%) Pharmaceutical
2 2 (3.03%) Finance
3 1 (1.52%) Games
3 1 (1.52%) Manufacturing
Job Titles
1 27 (40.91%) Linux Engineer
2 17 (25.76%) DevOps Engineer
3 9 (13.64%) Developer
4 8 (12.12%) Linux DevOps Engineer
4 8 (12.12%) Linux/Unix DevOps
5 7 (10.61%) Cloud Engineer
6 6 (9.09%) Python Developer
7 5 (7.58%) Infrastructure Engineer
7 5 (7.58%) Senior DevOps
7 5 (7.58%) Senior DevOps Engineer
8 4 (6.06%) Consultant
8 4 (6.06%) Infrastructure Specialist
8 4 (6.06%) IT Manager
8 4 (6.06%) IT Support
8 4 (6.06%) IT Support Specialist
8 4 (6.06%) Support Specialist
9 3 (4.55%) Infrastructure Consultant
9 3 (4.55%) Linux Systems Administrator
9 3 (4.55%) Platform Engineer
9 3 (4.55%) Systems Administrator
Libraries, Frameworks & Software Standards
1 18 (27.27%) Elastic Stack
2 8 (12.12%) Kafka
3 7 (10.61%) LEMP Stack
4 6 (9.09%) LAMP
5 5 (7.58%) Node.js
6 3 (4.55%) Django
7 2 (3.03%) AngularJS
7 2 (3.03%) CSS
7 2 (3.03%) HTML
7 2 (3.03%) J2SE
7 2 (3.03%) React
7 2 (3.03%) Spring
7 2 (3.03%) Vue.js
7 2 (3.03%) Web Services
8 1 (1.52%) .NET
8 1 (1.52%) ASP.NET
8 1 (1.52%) GraphQL
8 1 (1.52%) JSP
8 1 (1.52%) LAPP Stack
8 1 (1.52%) Spring Boot
Miscellaneous
1 12 (18.18%) Analytical Skills
2 11 (16.67%) PKI
3 7 (10.61%) Renewable Energy
4 5 (7.58%) Enterprise Cloud
5 4 (6.06%) Life Science
5 4 (6.06%) Management Information System
5 4 (6.06%) Replication
6 3 (4.55%) Enterprise Storage
6 3 (4.55%) Hybrid Cloud
7 1 (1.52%) Cyberattack
7 1 (1.52%) Cybercrime
7 1 (1.52%) Data Centre
7 1 (1.52%) Social Media
7 1 (1.52%) User Experience
Operating Systems
1 66 (100.00%) Linux
2 20 (30.30%) Red Hat Enterprise Linux
2 20 (30.30%) Windows
3 18 (27.27%) Ubuntu
4 7 (10.61%) Debian
4 7 (10.61%) Solaris
5 5 (7.58%) Android
5 5 (7.58%) Apple iOS
6 4 (6.06%) Fedora
6 4 (6.06%) Mac OS
7 3 (4.55%) SUSE
8 2 (3.03%) Unix
8 2 (3.03%) Windows Server
8 2 (3.03%) Windows Server 2012
9 1 (1.52%) AIX
Processes & Methodologies
1 23 (34.85%) DevOps
2 22 (33.33%) Agile Software Development
3 19 (28.79%) Configuration Management
4 15 (22.73%) Continuous Integration
4 15 (22.73%) Microservices
5 14 (21.21%) High Availability
6 13 (19.70%) Load Balancing
7 12 (18.18%) Infrastructure Engineering
7 12 (18.18%) Performance Tuning
7 12 (18.18%) Workflow
8 10 (15.15%) Capacity Planning
8 10 (15.15%) Test Automation
9 9 (13.64%) Infrastructure as Code
9 9 (13.64%) Software Engineering
10 8 (12.12%) Performance Measurement
11 7 (10.61%) Infrastructure Automation
11 7 (10.61%) Proactive Monitoring
11 7 (10.61%) Release Automation
11 7 (10.61%) Runbook
11 7 (10.61%) Unit Testing
Programming Languages
1 33 (50.00%) Python
2 24 (36.36%) Ruby
3 23 (34.85%) Bash Shell
4 21 (31.82%) PHP
5 15 (22.73%) Perl
5 15 (22.73%) PHP 5
5 15 (22.73%) PHP 7
5 15 (22.73%) PowerShell
6 9 (13.64%) SQL
7 8 (12.12%) Go
8 5 (7.58%) Java
9 4 (6.06%) C
10 2 (3.03%) JavaScript
10 2 (3.03%) Shell Script
Qualifications
1 5 (7.58%) Microsoft Certification
2 4 (6.06%) CCNA
2 4 (6.06%) Cisco Certification
3 2 (3.03%) Degree
3 2 (3.03%) Security Cleared
4 1 (1.52%) CISSP
4 1 (1.52%) CompTIA Security+
4 1 (1.52%) DV Cleared
4 1 (1.52%) GIAC
4 1 (1.52%) Linux+ Certification
4 1 (1.52%) Master's Degree
4 1 (1.52%) MCSE
4 1 (1.52%) Network+ Certification
4 1 (1.52%) SANS
4 1 (1.52%) SC Cleared
4 1 (1.52%) SSCP
Quality Assurance & Compliance
1 9 (13.64%) ISO/IEC 27001
2 4 (6.06%) QA
3 2 (3.03%) PCI DSS
4 1 (1.52%) SLA
System Software
1 18 (27.27%) Docker
2 13 (19.70%) VMware Infrastructure
3 7 (10.61%) Active Directory
3 7 (10.61%) Samba
4 6 (9.09%) vSphere
5 4 (6.06%) Microsoft Virtual Server
5 4 (6.06%) Virtual Servers
6 3 (4.55%) Hyper-V
6 3 (4.55%) NFS
6 3 (4.55%) VirtualBox
6 3 (4.55%) VMware ESXi
6 3 (4.55%) Xen
7 2 (3.03%) KVM
7 2 (3.03%) VMware NSX
8 1 (1.52%) Shibboleth
8 1 (1.52%) Virtual Machines
Systems Management
1 43 (65.15%) Ansible
2 30 (45.45%) Puppet
3 25 (37.88%) Kubernetes
4 20 (30.30%) HAProxy
5 19 (28.79%) Terraform
6 18 (27.27%) Opscode Chef
7 16 (24.24%) Kibana
7 16 (24.24%) logstash
8 12 (18.18%) Nagios
9 10 (15.15%) yum
10 8 (12.12%) Packer
10 8 (12.12%) Prometheus
11 7 (10.61%) SCCM
11 7 (10.61%) ZABBIX
12 5 (7.58%) Docker Swarm
13 3 (4.55%) OpenNMS
13 3 (4.55%) Rsyslog
13 3 (4.55%) SCOM
13 3 (4.55%) vCenter Server
14 2 (3.03%) SCOrch
Vendors
1 20 (30.30%) VMware
2 18 (27.27%) Red Hat
3 14 (21.21%) Google
3 14 (21.21%) SolarWinds
4 13 (19.70%) Microsoft
5 10 (15.15%) Cisco
6 8 (12.12%) New Relic
7 7 (10.61%) Dell
7 7 (10.61%) Rackspace
8 6 (9.09%) F5
9 5 (7.58%) Percona
9 5 (7.58%) Sybase
10 4 (6.06%) Apple
10 4 (6.06%) Draytek
10 4 (6.06%) Splunk
10 4 (6.06%) Synology
11 3 (4.55%) EMC
11 3 (4.55%) Hortonworks
11 3 (4.55%) Juniper
11 3 (4.55%) NetApp