Period
to 27 October 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 27 October 2021 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > East of England
6 months to
27 Oct 2021
Same period 2020 Same period 2019
Rank 208 110 187
Rank change year-on-year -98 +77 +93
Permanent jobs citing CentOS 23 22 82
As % of all permanent jobs advertised in the East of England 0.41% 1.21% 1.21%
As % of the Operating Systems category 2.25% 4.08% 4.47%
Number of salaries quoted 21 22 56
10th Percentile £36,250 £45,150 £32,500
25th Percentile £38,750 £47,500 £36,250
Median annual salary (50th Percentile) £55,000 £54,500 £43,750
Median % change year-on-year +0.92% +24.57% -2.78%
75th Percentile " £65,000 £60,000
90th Percentile £73,750 £69,875 £61,250
England median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% -9.09%

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 1,022 539 1,836
As % of all permanent IT jobs advertised in the East of England 18.37% 29.65% 27.01%
Number of salaries quoted 655 463 1,342
10th Percentile £21,750 £26,300 £24,750
25th Percentile £26,500 £32,750 £30,000
Median annual salary (50th Percentile) £40,000 £45,000 £42,500
Median % change year-on-year -11.11% +5.88% -5.56%
75th Percentile £56,250 £61,250 £57,500
90th Percentile £68,750 £90,000 £67,500
England median annual salary £50,000 £50,000 £46,000
% change year-on-year - +8.70% -3.16%

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 27 October 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 27 October 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
Hertfordshire -68 16 £55,000 +10.00% 5
Cambridgeshire -69 6 £62,500 +8.70% 2
Essex -12 1 £47,500 -26.92%
CentOS
England

For the 6 months to 27 October 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 23 (100.00%) Linux
2 17 (73.91%) Python
2 17 (73.91%) DevOps
3 16 (69.57%) Red Hat
3 16 (69.57%) VMware
4 15 (65.22%) Infrastructure Engineering
5 14 (60.87%) Git (software)
5 14 (60.87%) Puppet
5 14 (60.87%) HAProxy
5 14 (60.87%) Apache
6 12 (52.17%) Azure
7 11 (47.83%) Ansible
7 11 (47.83%) Finance
8 10 (43.48%) AWS
8 10 (43.48%) Problem-Solving
9 9 (39.13%) Salt
9 9 (39.13%) GCP
9 9 (39.13%) Opscode Chef
9 9 (39.13%) vSphere
9 9 (39.13%) Root Cause Analysis
9 9 (39.13%) SolarWinds
9 9 (39.13%) Tomcat
9 9 (39.13%) Configuration Management
9 9 (39.13%) NFS
9 9 (39.13%) DNS
9 9 (39.13%) Unix
10 8 (34.78%) Docker
11 7 (30.43%) Jenkins
11 7 (30.43%) Agile Software Development
11 7 (30.43%) Windows

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 14 (60.87%) Apache
2 9 (39.13%) Tomcat
3 5 (21.74%) WordPress
Cloud Services
1 12 (52.17%) Azure
2 10 (43.48%) AWS
3 9 (39.13%) GCP
4 2 (8.70%) Amazon ECS
4 2 (8.70%) AWS CodePipeline
5 1 (4.35%) Amazon CloudWatch
5 1 (4.35%) Amazon EC2
5 1 (4.35%) Amazon S3
5 1 (4.35%) Virtual Private Cloud
Communications & Networking
1 9 (39.13%) DNS
2 5 (21.74%) IPv4
2 5 (21.74%) IPv6
3 2 (8.70%) DSL
Database & Business Intelligence
1 6 (26.09%) PostgreSQL
1 6 (26.09%) SQL Server
2 5 (21.74%) MariaDB
3 2 (8.70%) Apache Cassandra
3 2 (8.70%) MongoDB
3 2 (8.70%) NoSQL
4 1 (4.35%) Amazon RDS
Development Applications
1 14 (60.87%) Git (software)
2 7 (30.43%) Jenkins
3 2 (8.70%) Maven
3 2 (8.70%) Sonatype Nexus
General
1 11 (47.83%) Finance
Job Titles
1 15 (65.22%) Linux Engineer
2 8 (34.78%) DevOps Engineer
3 6 (26.09%) Cloud Engineer
3 6 (26.09%) Linux DevOps Engineer
3 6 (26.09%) Linux/Unix DevOps
4 5 (21.74%) Cloud Infrastructure Engineer
4 5 (21.74%) Infrastructure Engineer
4 5 (21.74%) IT Engineer
4 5 (21.74%) IT Infrastructure Engineer
4 5 (21.74%) Linux Scripter
5 3 (13.04%) Azure Engineer
5 3 (13.04%) Azure Infrastructure Engineer
6 2 (8.70%) Senior DevOps
6 2 (8.70%) Senior DevOps Engineer
7 1 (4.35%) AWS DevOps
7 1 (4.35%) AWS DevOps Engineer
7 1 (4.35%) AWS Engineer
7 1 (4.35%) Linux Administrator
7 1 (4.35%) Linux Systems Administrator
7 1 (4.35%) Systems Administrator
Libraries, Frameworks & Software Standards
1 5 (21.74%) LAMP
1 5 (21.74%) LAPP Stack
2 2 (8.70%) J2EE
2 2 (8.70%) React
Miscellaneous
1 5 (21.74%) Data Centre
1 5 (21.74%) Public Cloud
Operating Systems
1 23 (100.00%) Linux
2 9 (39.13%) Unix
3 7 (30.43%) Windows
4 5 (21.74%) Fedora
4 5 (21.74%) Windows Server
5 3 (13.04%) Ubuntu
6 2 (8.70%) AIX
6 2 (8.70%) Red Hat Enterprise Linux
6 2 (8.70%) Solaris
Processes & Methodologies
1 17 (73.91%) DevOps
2 15 (65.22%) Infrastructure Engineering
3 10 (43.48%) Problem-Solving
4 9 (39.13%) Configuration Management
4 9 (39.13%) Root Cause Analysis
5 7 (30.43%) Agile Software Development
6 5 (21.74%) Logistics
6 5 (21.74%) Migration
6 5 (21.74%) Open Source
7 2 (8.70%) Continuous Integration
7 2 (8.70%) GitOps
7 2 (8.70%) Release Management
7 2 (8.70%) Site Reliability Engineering
8 1 (4.35%) Scrum
Programming Languages
1 17 (73.91%) Python
2 5 (21.74%) Shell Script
3 3 (13.04%) Java
3 3 (13.04%) SQL
4 2 (8.70%) Bash Shell
4 2 (8.70%) Groovy
4 2 (8.70%) Jython
4 2 (8.70%) PL/SQL
Qualifications
1 2 (8.70%) Degree
1 2 (8.70%) OCP
1 2 (8.70%) Oracle Certification
Quality Assurance & Compliance
1 5 (21.74%) Cyber Essentials
1 5 (21.74%) Cyber Essentials PLUS
1 5 (21.74%) ISO/IEC 27001
System Software
1 9 (39.13%) NFS
1 9 (39.13%) vSphere
2 8 (34.78%) Docker
3 5 (21.74%) Virtual Servers
3 5 (21.74%) VMware Infrastructure
Systems Management
1 14 (60.87%) HAProxy
1 14 (60.87%) Puppet
2 11 (47.83%) Ansible
3 9 (39.13%) Opscode Chef
3 9 (39.13%) Salt
4 5 (21.74%) Icinga
5 2 (8.70%) Docker Swarm
5 2 (8.70%) HP Fortify
5 2 (8.70%) Kubernetes
5 2 (8.70%) Nagios
5 2 (8.70%) Prometheus
5 2 (8.70%) Terraform
Vendors
1 16 (69.57%) Red Hat
1 16 (69.57%) VMware
2 9 (39.13%) SolarWinds
3 5 (21.74%) Microsoft
4 2 (8.70%) Black Duck
4 2 (8.70%) Oracle
4 2 (8.70%) Splunk
4 2 (8.70%) Veracode