CentOS Linux
UK

The table below provides summary statistics for permanent job vacancies requiring CentOS skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited CentOS over the 6 months leading up to 30 April 2025, comparing them to the same period in the previous two years.

6 months to
30 Apr 2025
Same period 2024 Same period 2023
Rank 615 580 666
Rank change year-on-year -35 +86 -2
Permanent jobs citing CentOS 69 326 339
As % of all permanent jobs advertised in the UK 0.13% 0.33% 0.33%
As % of the Operating Systems category 1.05% 2.31% 2.04%
Number of salaries quoted 65 203 238
10th Percentile £37,500 £36,000 £41,250
25th Percentile £41,250 £42,500 £43,750
Median annual salary (50th Percentile) £55,000 £50,000 £52,500
Median % change year-on-year +10.00% -4.76% +5.00%
75th Percentile £85,000 £71,000 £67,500
90th Percentile £100,500 £92,000 £80,000
UK excluding London median annual salary £46,500 £50,000 £47,500
% change year-on-year -7.00% +5.26% +2.15%

All Operating Systems
UK

CentOS falls under the Operating Systems category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring operating system skills.

Permanent vacancies with a requirement for operating system skills 6,583 14,121 16,635
As % of all permanent jobs advertised in the UK 12.62% 14.36% 15.99%
Number of salaries quoted 4,456 10,927 11,200
10th Percentile £27,500 £25,760 £27,000
25th Percentile £33,250 £31,250 £35,000
Median annual salary (50th Percentile) £47,500 £45,000 £52,500
Median % change year-on-year +5.56% -14.29% -
75th Percentile £67,500 £62,500 £71,250
90th Percentile £85,625 £80,000 £92,500
UK excluding London median annual salary £42,000 £42,500 £45,000
% change year-on-year -1.18% -5.56% -

CentOS
Job Vacancy Trend

Job postings citing CentOS as a proportion of all IT jobs advertised.

Job vacancy trend for CentOS in the UK

CentOS
Salary Trend

3-month moving average salary quoted in jobs citing CentOS.

Salary trend for CentOS in the UK

CentOS
Salary Histogram

Salary distribution for jobs citing CentOS over the 6 months to 30 April 2025.

Salary histogram for CentOS in the UK

CentOS
Top 12 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the UK over the 6 months to 30 April 2025. 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
Jobs
England -37 63 £60,000 +20.00% 47
UK excluding London +8 39 £46,500 -7.00% 40
London +60 29 £85,000 - 14
Work from Home +115 22 £60,000 +20.00% 51
South East +28 15 £42,500 -10.53% 6
North of England +76 10 £50,000 +33.33% 15
North West +30 10 £50,000 -13.04% 11
Midlands +37 8 £40,000 -13.51% 3
East Midlands +37 6 £40,000 -20.00%
Wales +40 4 £47,500 -5.00% 1
West Midlands +39 2 £60,000 +100.00% 2
East of England - 2 £58,000 - 3

CentOS
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 15 (21.74%) Microsoft Exchange
2 5 (7.25%) Apache
3 3 (4.35%) nginx
3 3 (4.35%) SharePoint
3 3 (4.35%) Tomcat
4 2 (2.90%) Confluence
5 1 (1.45%) ColdFusion
5 1 (1.45%) IIS
Applications
1 2 (2.90%) Microsoft Excel
2 1 (1.45%) Trello
Business Applications
1 11 (15.94%) Fidessa
2 2 (2.90%) SAP Oil and Gas
Cloud Services
1 27 (39.13%) AWS
2 21 (30.43%) Azure
3 9 (13.04%) Amazon CloudWatch
4 8 (11.59%) Microsoft 365
5 7 (10.14%) GCP
6 4 (5.80%) Amazon ECR
6 4 (5.80%) Amazon ECS
6 4 (5.80%) Cloud Computing
6 4 (5.80%) Datadog
7 3 (4.35%) Entra ID
7 3 (4.35%) OneDrive
8 2 (2.90%) Amazon EC2
8 2 (2.90%) Nutanix
9 1 (1.45%) Azure DevOps
9 1 (1.45%) GitHub
9 1 (1.45%) Google Workspace
9 1 (1.45%) SaaS
9 1 (1.45%) Slack
Communications & Networking
1 29 (42.03%) Firewall
2 23 (33.33%) DNS
3 18 (26.09%) DHCP
4 14 (20.29%) TCP/IP
5 11 (15.94%) FIX Connectivity
6 7 (10.14%) Wireshark
7 6 (8.70%) VLAN
8 5 (7.25%) VPN
9 3 (4.35%) HTTP
9 3 (4.35%) Intrusion Detection
9 3 (4.35%) Multicast
9 3 (4.35%) SSL
10 2 (2.90%) FTP
10 2 (2.90%) HTTPS
10 2 (2.90%) SAN
10 2 (2.90%) SSH
10 2 (2.90%) Telnet
10 2 (2.90%) VSAN
11 1 (1.45%) LAN
11 1 (1.45%) WAN
Database & Business Intelligence
1 15 (21.74%) MySQL
2 12 (17.39%) SQL Server
3 7 (10.14%) Relational Database
4 4 (5.80%) Elasticsearch
4 4 (5.80%) MariaDB
4 4 (5.80%) RDBMS
5 2 (2.90%) Big Data
5 2 (2.90%) Oracle Reports
Development Applications
1 16 (23.19%) Git
2 4 (5.80%) GitLab
3 2 (2.90%) Jenkins
3 2 (2.90%) JIRA
4 1 (1.45%) Jaeger
4 1 (1.45%) Maven
4 1 (1.45%) Sonatype Nexus
4 1 (1.45%) Subversion
General
1 24 (34.78%) Finance
2 20 (28.99%) Banking
3 15 (21.74%) Social Skills
4 4 (5.80%) Spanish Language
5 3 (4.35%) Analytical Skills
5 3 (4.35%) Manufacturing
6 1 (1.45%) Aerospace
6 1 (1.45%) Automotive
6 1 (1.45%) Back Office
6 1 (1.45%) Electronics
6 1 (1.45%) Games
Job Titles
1 13 (18.84%) Infrastructure Engineer
2 12 (17.39%) Analyst
2 12 (17.39%) Support Analyst
3 11 (15.94%) Administrator
3 11 (15.94%) Applications Support
3 11 (15.94%) Applications Support Analyst
4 10 (14.49%) Systems Administrator
5 9 (13.04%) Linux Administrator
5 9 (13.04%) Linux Engineer
6 8 (11.59%) DevOps Engineer
6 8 (11.59%) Linux Systems Administrator
7 7 (10.14%) Banking Analyst
7 7 (10.14%) Financial Analyst
7 7 (10.14%) NOC Engineer
8 6 (8.70%) Cloud Engineer
8 6 (8.70%) IT Engineer
8 6 (8.70%) IT Infrastructure Engineer
9 5 (7.25%) FIX Support Analyst
9 5 (7.25%) SQL Analyst
9 5 (7.25%) SQL Support Analyst
Libraries, Frameworks & Software Standards
1 13 (18.84%) FIX Protocol
2 3 (4.35%) LEMP Stack
2 3 (4.35%) Loki
2 3 (4.35%) Node.js
3 2 (2.90%) EDI
3 2 (2.90%) Elastic Stack
3 2 (2.90%) Lambda Expressions
3 2 (2.90%) LAMP
3 2 (2.90%) XML
4 1 (1.45%) AngularJS
4 1 (1.45%) Bootstrap
4 1 (1.45%) CSS
4 1 (1.45%) HTML
4 1 (1.45%) JSON
4 1 (1.45%) Laravel
4 1 (1.45%) LDAP
4 1 (1.45%) React
4 1 (1.45%) SOAP
4 1 (1.45%) Tailwind CSS
4 1 (1.45%) Web Services
Miscellaneous
1 17 (24.64%) Data Centre
2 11 (15.94%) Eurex
3 7 (10.14%) Derivative
3 7 (10.14%) Equities
3 7 (10.14%) Fixed Income
3 7 (10.14%) Management Information System
4 5 (7.25%) Bitcoin
5 4 (5.80%) Hedge funds
5 4 (5.80%) Hybrid Cloud
6 3 (4.35%) Renewable Energy
7 2 (2.90%) Foreign Exchange (FX)
7 2 (2.90%) Life Science
7 2 (2.90%) Linux Command Line
7 2 (2.90%) Onboarding
7 2 (2.90%) Reference Data
7 2 (2.90%) Replication
8 1 (1.45%) Clustering
8 1 (1.45%) Low-Code
8 1 (1.45%) Public Cloud
Operating Systems
1 69 (100.00%) Linux
2 37 (53.62%) Ubuntu
3 30 (43.48%) Windows
4 17 (24.64%) Rocky
5 13 (18.84%) Unix
6 12 (17.39%) Red Hat Enterprise Linux
7 11 (15.94%) Debian
7 11 (15.94%) Windows Server
8 6 (8.70%) Mac OS
9 4 (5.80%) Solaris
10 3 (4.35%) Windows Server 2016
11 2 (2.90%) AIX
11 2 (2.90%) Oracle Linux
12 1 (1.45%) SUSE
Processes & Methodologies
1 21 (30.43%) DevOps
2 19 (27.54%) CI/CD
3 13 (18.84%) Client Onboarding
3 13 (18.84%) Containerisation
3 13 (18.84%) Infrastructure as Code
3 13 (18.84%) Infrastructure Engineering
3 13 (18.84%) ITIL
4 12 (17.39%) Service Delivery
5 10 (14.49%) Configuration Management
6 9 (13.04%) Penetration Testing
6 9 (13.04%) Problem-Solving
7 8 (11.59%) Capacity Planning
7 8 (11.59%) Disaster Recovery
8 7 (10.14%) Continuous Improvement
8 7 (10.14%) Information Security
8 7 (10.14%) Information Security Management
8 7 (10.14%) Low Latency
8 7 (10.14%) Proactive Monitoring
8 7 (10.14%) Security Management
9 6 (8.70%) Computer Science
Programming Languages
1 33 (47.83%) Python
2 26 (37.68%) Bash
3 18 (26.09%) PowerShell
3 18 (26.09%) SQL
4 10 (14.49%) Perl
5 7 (10.14%) JavaScript
6 5 (7.25%) PHP
7 3 (4.35%) Ruby
8 2 (2.90%) AWK
8 2 (2.90%) C
8 2 (2.90%) C++
8 2 (2.90%) Korn
9 1 (1.45%) Go
9 1 (1.45%) Java
9 1 (1.45%) Shell Script
Qualifications
1 10 (14.49%) Degree
2 7 (10.14%) CCNA
2 7 (10.14%) CCNP
2 7 (10.14%) Cisco Certification
2 7 (10.14%) MCSA
2 7 (10.14%) MCSE
2 7 (10.14%) Microsoft Certification
2 7 (10.14%) Network+ Certification
2 7 (10.14%) VMware Certified Professional (VCP)
3 4 (5.80%) RHCE
3 4 (5.80%) Security Cleared
4 3 (4.35%) AWS Certification
4 3 (4.35%) Azure Certification
4 3 (4.35%) DV Cleared
4 3 (4.35%) Linux+ Certification
5 2 (2.90%) Computer Science Degree
5 2 (2.90%) SC Cleared
6 1 (1.45%) HNC
6 1 (1.45%) HND
Quality Assurance & Compliance
1 7 (10.14%) QA
2 5 (7.25%) SLA
3 3 (4.35%) GDPR
3 3 (4.35%) HIPAA
System Software
1 21 (30.43%) VMware Infrastructure
2 12 (17.39%) Active Directory
3 10 (14.49%) Docker
4 6 (8.70%) pfSense
4 6 (8.70%) vSphere
5 5 (7.25%) Postfix
5 5 (7.25%) VMware ESXi
6 4 (5.80%) Virtual Servers
7 3 (4.35%) Dovecot
7 3 (4.35%) Hyper-V
7 3 (4.35%) KVM
8 2 (2.90%) Sendmail
8 2 (2.90%) VMware NSX
9 1 (1.45%) Firmware
Systems Management
1 26 (37.68%) Ansible
2 23 (33.33%) Grafana
3 11 (15.94%) Kubernetes
3 11 (15.94%) Terraform
4 10 (14.49%) Prometheus
5 9 (13.04%) Nagios
6 6 (8.70%) Puppet
7 4 (5.80%) Nessus
8 3 (4.35%) Proxmox
8 3 (4.35%) Red Hat Satellite
9 2 (2.90%) vCenter Server
10 1 (1.45%) FortiGate
10 1 (1.45%) Microsoft Intune
Vendors
1 38 (55.07%) Red Hat
2 24 (34.78%) Microsoft
3 23 (33.33%) VMware
4 14 (20.29%) Oracle
5 11 (15.94%) Bloomberg
5 11 (15.94%) CQG
5 11 (15.94%) ION Trading
5 11 (15.94%) Reuters
5 11 (15.94%) Trayport
6 10 (14.49%) Patsystems
7 9 (13.04%) Atlassian
8 8 (11.59%) Cisco
9 7 (10.14%) Palo Alto
9 7 (10.14%) Splunk
10 4 (5.80%) Rapid7
11 3 (4.35%) Okta
11 3 (4.35%) Ping Identity
11 3 (4.35%) SolarWinds
12 2 (2.90%) PagerDuty
12 2 (2.90%) Tenable