Period
to 22 April 2021

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 22 April 2021 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > East of England
6 months to
22 Apr 2021
Same period 2020 Same period 2019
Rank 159 222 213
Rank change year-on-year +63 -9 +110
Permanent jobs citing CentOS 20 13 83
As % of all permanent jobs advertised in the East of England 0.56% 0.25% 0.99%
As % of the Operating Systems category 2.55% 1.01% 3.53%
Number of salaries quoted 19 12 58
10th Percentile £41,250 £32,625 £33,750
25th Percentile £42,500 £39,375 £36,250
Median annual salary (50th Percentile) £50,000 £55,000 £40,000
Median % change year-on-year -9.09% +37.50% -33.33%
75th Percentile £73,125 £58,125 £47,500
90th Percentile £73,750 £60,000 £60,000
England median annual salary £55,000 £55,000 £52,500
% change year-on-year - +4.76% +5.00%

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 785 1,281 2,354
As % of all permanent IT jobs advertised in the East of England 22.00% 24.82% 28.09%
Number of salaries quoted 562 983 1,795
10th Percentile £26,250 £25,750 £24,000
25th Percentile £33,875 £31,250 £30,000
Median annual salary (50th Percentile) £47,500 £42,500 £45,000
Median % change year-on-year +11.76% -5.56% -
75th Percentile £62,500 £57,500 £57,500
90th Percentile £72,500 £71,250 £65,000
England median annual salary £50,000 £47,500 £47,500
% change year-on-year +5.26% - -

CentOS
Job Vacancy Trend in the East of England

Job postings citing CentOS as a proportion 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

3-month moving average salary quoted in 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

Salary distribution for jobs citing CentOS in the East of England over the 6 months to 22 April 2021.

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 22 April 2021. 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
Cambridgeshire +16 10 £45,000 +31.81% 4
Essex - 7 £72,500 -
Hertfordshire +44 2 £51,250 +20.59% 3
Bedfordshire +25 1 - -
CentOS
England

For the 6 months to 22 April 2021, 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 20 (100.00%) Linux
2 19 (95.00%) Red Hat
3 10 (50.00%) Ubuntu
4 9 (45.00%) VMware
4 9 (45.00%) SC Cleared
4 9 (45.00%) Security Cleared
4 9 (45.00%) Red Hat Enterprise Linux
4 9 (45.00%) Infrastructure Engineering
5 8 (40.00%) VMware Infrastructure
5 8 (40.00%) Agile Software Development
6 7 (35.00%) DevOps
7 6 (30.00%) Software Delivery
7 6 (30.00%) Hyper-V
7 6 (30.00%) Public Sector
7 6 (30.00%) Continuous Deployment
7 6 (30.00%) Digital Transformation Programme
7 6 (30.00%) Middleware
7 6 (30.00%) Oracle
8 4 (20.00%) Python
9 3 (15.00%) Azure
9 3 (15.00%) Windows
9 3 (15.00%) Active Directory
9 3 (15.00%) HP
9 3 (15.00%) NetApp
9 3 (15.00%) Problem-Solving
9 3 (15.00%) Windows Server
9 3 (15.00%) Git (software)
9 3 (15.00%) Microsoft 365
9 3 (15.00%) Jenkins
9 3 (15.00%) Ansible

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 2 (10.00%) MS Exchange
2 1 (5.00%) Apache
2 1 (5.00%) Confluence
2 1 (5.00%) WordPress
Applications
1 2 (10.00%) Microsoft Office
Cloud Services
1 3 (15.00%) Azure
1 3 (15.00%) Microsoft 365
2 2 (10.00%) AWS
3 1 (5.00%) Amazon EC2
3 1 (5.00%) Amazon ELB
3 1 (5.00%) Amazon S3
3 1 (5.00%) AWS CloudFormation
3 1 (5.00%) IaaS
3 1 (5.00%) Route 53
Communications & Networking
1 2 (10.00%) Firewall
1 2 (10.00%) SAN
2 1 (5.00%) IPv4
2 1 (5.00%) IPv6
2 1 (5.00%) NAS
Database & Business Intelligence
1 1 (5.00%) Amazon RDS
1 1 (5.00%) MariaDB
1 1 (5.00%) NoSQL
1 1 (5.00%) PostgreSQL
1 1 (5.00%) SQL Server
Development Applications
1 3 (15.00%) Git (software)
1 3 (15.00%) Jenkins
2 1 (5.00%) JIRA
2 1 (5.00%) Sonatype Nexus
2 1 (5.00%) Subversion
2 1 (5.00%) Vagrant
General
1 6 (30.00%) Public Sector
Job Titles
1 7 (35.00%) DevOps Engineer
1 7 (35.00%) Linux Engineer
2 4 (20.00%) Infrastructure Engineer
3 3 (15.00%) Linux Systems Administrator
3 3 (15.00%) Systems Administrator
4 2 (10.00%) Administrator
4 2 (10.00%) Linux Administrator
5 1 (5.00%) AIX Technician
5 1 (5.00%) Infrastructure Services Engineer
5 1 (5.00%) Infrastructure Support
5 1 (5.00%) Infrastructure Support Engineer
5 1 (5.00%) Linux Infrastructure Engineer
5 1 (5.00%) Linux Support
5 1 (5.00%) Linux Support Engineer
5 1 (5.00%) Linux Technician
5 1 (5.00%) Microsoft Infrastructure Engineer
5 1 (5.00%) Senior Technician
5 1 (5.00%) Support Engineer
Libraries, Frameworks & Software Standards
1 6 (30.00%) Middleware
2 1 (5.00%) AngularJS
2 1 (5.00%) LAMP
2 1 (5.00%) LAPP Stack
2 1 (5.00%) Node.js
Miscellaneous
1 2 (10.00%) Data Centre
1 2 (10.00%) Replication
2 1 (5.00%) Clustering
Operating Systems
1 20 (100.00%) Linux
2 10 (50.00%) Ubuntu
3 9 (45.00%) Red Hat Enterprise Linux
4 3 (15.00%) Windows
4 3 (15.00%) Windows Server
5 2 (10.00%) Fedora
6 1 (5.00%) AIX
6 1 (5.00%) Debian
6 1 (5.00%) SUSE
6 1 (5.00%) Unix
6 1 (5.00%) VMS
Processes & Methodologies
1 9 (45.00%) Infrastructure Engineering
2 8 (40.00%) Agile Software Development
3 7 (35.00%) DevOps
4 6 (30.00%) Continuous Deployment
4 6 (30.00%) Digital Transformation Programme
4 6 (30.00%) Software Delivery
5 3 (15.00%) Problem-Solving
6 2 (10.00%) Capacity Management
6 2 (10.00%) Configuration Management
6 2 (10.00%) Server Building
6 2 (10.00%) Virtual Environments
7 1 (5.00%) Artificial Intelligence
7 1 (5.00%) Change Control
7 1 (5.00%) Computer Science
7 1 (5.00%) Disaster Recovery
7 1 (5.00%) High Availability
7 1 (5.00%) Logistics
7 1 (5.00%) Open Source
7 1 (5.00%) Root Cause Analysis
7 1 (5.00%) Service Delivery
Programming Languages
1 4 (20.00%) Python
2 2 (10.00%) Perl
2 2 (10.00%) Shell Script
3 1 (5.00%) Bash Shell
3 1 (5.00%) Go
3 1 (5.00%) Java
3 1 (5.00%) PowerShell
3 1 (5.00%) SQL
Qualifications
1 9 (45.00%) SC Cleared
1 9 (45.00%) Security Cleared
2 1 (5.00%) LPIC
Quality Assurance & Compliance
1 1 (5.00%) SLA
System Software
1 8 (40.00%) VMware Infrastructure
2 6 (30.00%) Hyper-V
3 3 (15.00%) Active Directory
4 2 (10.00%) Docker
5 1 (5.00%) PowerHA
Systems Management
1 3 (15.00%) Ansible
2 2 (10.00%) HP Data Protector
3 1 (5.00%) HAProxy
3 1 (5.00%) Icinga
3 1 (5.00%) Kubernetes
3 1 (5.00%) Puppet
3 1 (5.00%) Red Hat Satellite
3 1 (5.00%) Terraform
Vendors
1 19 (95.00%) Red Hat
2 9 (45.00%) VMware
3 6 (30.00%) Oracle
4 3 (15.00%) HP
4 3 (15.00%) NetApp
5 2 (10.00%) Microsoft
5 2 (10.00%) Veeam
6 1 (5.00%) Apple
6 1 (5.00%) Cisco
6 1 (5.00%) IBM