CentOS Contract Job Trends

CentOS Linux
UK

The table below provides summary statistics and contractor rates for jobs requiring CentOS skills. It covers contract job vacancies from the 6 months leading up to 6 November 2025, with comparisons to the same periods in the previous two years.

6 months to
6 Nov 2025
Same period 2024 Same period 2023
Rank 514 469 520
Rank change year-on-year -45 +51 +78
Contract jobs citing CentOS 60 82 114
As % of all contract jobs in the UK 0.17% 0.22% 0.25%
As % of the Operating Systems category 1.27% 1.59% 1.61%
Number of daily rates quoted 36 41 82
10th Percentile £388 £300 £376
25th Percentile £522 £400 £426
Median daily rate (50th Percentile) £550 £500 £553
Median % change year-on-year +10.00% -9.50% -7.92%
75th Percentile £625 £613 £625
90th Percentile £649 £675 £649
UK excluding London median daily rate £550 £531 £550
% change year-on-year +3.53% -3.41% -4.35%
Number of hourly rates quoted 0 3 0
Median hourly rate - £112.00 -
UK excluding London median hourly rate - £63.79 -

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 contract job vacancies requiring operating system skills.

Contract vacancies with a requirement for operating system skills 4,732 5,150 7,066
As % of all contract IT jobs advertised in the UK 13.67% 14.10% 15.22%
Number of daily rates quoted 3,045 3,171 4,802
10th Percentile £185 £200 £181
25th Percentile £268 £325 £305
Median daily rate (50th Percentile) £450 £475 £488
Median % change year-on-year -5.26% -2.56% -4.41%
75th Percentile £573 £577 £613
90th Percentile £653 £675 £700
UK excluding London median daily rate £410 £450 £440
% change year-on-year -8.79% +2.16% -2.22%
Number of hourly rates quoted 352 216 352
10th Percentile £15.50 £16.25 £14.25
25th Percentile £18.87 £22.19 £18.19
Median hourly rate £24.00 £52.50 £34.00
Median % change year-on-year -54.29% +54.41% +36.00%
75th Percentile £41.80 £68.75 £65.00
90th Percentile £67.00 £70.00 £76.53
UK excluding London median hourly rate £22.57 £52.50 £27.50
% change year-on-year -57.01% +90.91% +22.22%

CentOS
Job Vacancy Trend

Historical trend showing the proportion of contract IT job postings citing CentOS relative to all contract IT jobs advertised.

CentOS job vacancy trend in the UK

CentOS
Daily Rate Trend

Contractor daily rate distribution trend for jobs in the UK citing CentOS.

Contractor daily rate distribution trend for jobs in the UK citing CentOS

CentOS
Daily Rate Histogram

Daily rate distribution for jobs citing CentOS over the 6 months to 6 November 2025.

Daily rate histogram for CentOS in the UK

CentOS
Hourly Rate Trend

Contractor hourly rate distribution trend for jobs in the UK citing CentOS.

Contractor hourly rate distribution trend for jobs in the UK citing CentOS

CentOS
Top 9 Contract Job Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the UK over the 6 months to 6 November 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
England -21 58 £550 +10.00% 74
UK excluding London -72 29 £550 +3.53% 60
London -1 20 £550 +37.50% 27
South East -17 13 £550 -4.35% 35
Work from Home +6 11 £483 -3.98% 45
East of England - 8 £483 - 3
South West +3 6 £550 +4.76% 4
North of England -37 2 £365 -14.12% 14
Yorkshire - 2 £365 - 6

CentOS
Co-Occurring Skills & Capabilities by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 12 (20.00%) Apache
2 4 (6.67%) OpenStack
3 3 (5.00%) Tomcat
4 2 (3.33%) Confluence
4 2 (3.33%) Microsoft Exchange
4 2 (3.33%) Oracle HTTP Server
4 2 (3.33%) WebLogic
5 1 (1.67%) Anypoint
5 1 (1.67%) SharePoint
Applications
1 2 (3.33%) Microsoft Office
Business Applications
1 1 (1.67%) Remedy ITSM
Cloud Services
1 25 (41.67%) AWS
2 10 (16.67%) GCP
3 9 (15.00%) Azure
4 7 (11.67%) Amazon ECS
4 7 (11.67%) AWS CloudFormation
4 7 (11.67%) AWS Fargate
4 7 (11.67%) Entra ID
4 7 (11.67%) Virtual Private Cloud
5 5 (8.33%) GitHub
5 5 (8.33%) OpenShift
6 4 (6.67%) npm
7 3 (5.00%) Cloud Computing
8 1 (1.67%) Amazon S3
8 1 (1.67%) IaaS
8 1 (1.67%) IBM Cloud
8 1 (1.67%) Microsoft 365
8 1 (1.67%) OCI
Communications & Networking
1 20 (33.33%) DNS
2 9 (15.00%) Firewall
3 8 (13.33%) DHCP
4 7 (11.67%) SAN
5 6 (10.00%) TCP/IP
6 5 (8.33%) VPN
7 4 (6.67%) AMQP
8 3 (5.00%) iSCSI
8 3 (5.00%) NAS
8 3 (5.00%) VLAN
8 3 (5.00%) VSAN
9 2 (3.33%) BGP
9 2 (3.33%) Ethernet VPN
9 2 (3.33%) HTTP
9 2 (3.33%) MPLS
9 2 (3.33%) Skype
9 2 (3.33%) SSL
10 1 (1.67%) Intrusion Detection
10 1 (1.67%) RTP
10 1 (1.67%) VoIP
Database & Business Intelligence
1 9 (15.00%) MongoDB
2 5 (8.33%) RDBMS
2 5 (8.33%) Relational Database
3 4 (6.67%) Amazon RDS
3 4 (6.67%) MySQL
4 3 (5.00%) Elasticsearch
4 3 (5.00%) MariaDB
5 2 (3.33%) InfluxDB
5 2 (3.33%) NoSQL
Development Applications
1 12 (20.00%) GitLab
1 12 (20.00%) Jenkins
2 8 (13.33%) JIRA
3 7 (11.67%) Git
4 4 (6.67%) Maven
4 4 (6.67%) MSI
4 4 (6.67%) Robot Framework
4 4 (6.67%) Sonatype Nexus
4 4 (6.67%) Terragrunt
5 3 (5.00%) TeamCity
5 3 (5.00%) Vagrant
6 2 (3.33%) Bitbucket
7 1 (1.67%) Postman
General
1 13 (21.67%) Social Skills
2 9 (15.00%) Finance
3 7 (11.67%) Analytical Skills
4 5 (8.33%) Financial Institution
4 5 (8.33%) Public Sector
5 1 (1.67%) Billing
5 1 (1.67%) Inclusion and Diversity
5 1 (1.67%) Telecoms
Job Titles
1 10 (16.67%) Administrator
2 8 (13.33%) DevOps Engineer
2 8 (13.33%) Infrastructure Engineer
3 7 (11.67%) Developer
3 7 (11.67%) Linux Engineer
4 6 (10.00%) Integration Engineer
4 6 (10.00%) Lead
4 6 (10.00%) Lead DevOps
4 6 (10.00%) Lead DevOps Engineer
4 6 (10.00%) Linux Administrator
5 5 (8.33%) Senior
5 5 (8.33%) Systems Administrator
6 4 (6.67%) 3rd Line Engineer
6 4 (6.67%) Linux Systems Administrator
6 4 (6.67%) Linux Systems Engineer
6 4 (6.67%) Support Engineer
6 4 (6.67%) Wintel Engineer
7 3 (5.00%) Consultant
7 3 (5.00%) Infrastructure Consultant
7 3 (5.00%) Linux Specialist
Libraries, Frameworks & Software Standards
1 8 (13.33%) Keycloak
2 7 (11.67%) cloud-init
2 7 (11.67%) Kafka
3 6 (10.00%) Middleware
4 4 (6.67%) AWS CDK
4 4 (6.67%) Node.js
4 4 (6.67%) React
5 3 (5.00%) AngularJS
5 3 (5.00%) CSS
5 3 (5.00%) Electron
5 3 (5.00%) HTML
5 3 (5.00%) JNI
5 3 (5.00%) LAMP
5 3 (5.00%) REST
6 2 (3.33%) JSON
6 2 (3.33%) NETCONF
6 2 (3.33%) SOAP
6 2 (3.33%) XML
6 2 (3.33%) YAML
6 2 (3.33%) Zend Framework
Miscellaneous
1 13 (21.67%) PKI
2 11 (18.33%) Data Centre
3 6 (10.00%) Enterprise Storage
3 6 (10.00%) Hedge funds
4 5 (8.33%) Legacy Applications
4 5 (8.33%) Linux Command Line
5 3 (5.00%) Cloud Native
6 2 (3.33%) Onboarding
7 1 (1.67%) Client/Server
7 1 (1.67%) CUDA
7 1 (1.67%) Data Protection Act
7 1 (1.67%) Distributed Systems
7 1 (1.67%) Enterprise Software
7 1 (1.67%) Eurex
7 1 (1.67%) Hybrid Cloud
7 1 (1.67%) Private Cloud
7 1 (1.67%) Public Cloud
7 1 (1.67%) SWIFT Messaging Network
Operating Systems
1 60 (100.00%) Linux
2 38 (63.33%) Red Hat Enterprise Linux
3 26 (43.33%) Ubuntu
4 23 (38.33%) Windows
5 20 (33.33%) Unix
6 17 (28.33%) Windows Server
7 7 (11.67%) Windows Server 2019
8 4 (6.67%) Mac OS
8 4 (6.67%) Oracle Linux
9 3 (5.00%) Debian
10 2 (3.33%) Windows 10
10 2 (3.33%) Windows Server 2012
10 2 (3.33%) Windows Server 2016
11 1 (1.67%) SUSE
11 1 (1.67%) VMS
11 1 (1.67%) Windows Server 2003
Processes & Methodologies
1 23 (38.33%) CI/CD
2 22 (36.67%) DevOps
3 19 (31.67%) Containerisation
4 13 (21.67%) Agile
4 13 (21.67%) Infrastructure as Code
5 11 (18.33%) Problem-Solving
6 10 (16.67%) Configuration Management
6 10 (16.67%) High Availability
6 10 (16.67%) Infrastructure Engineering
7 9 (15.00%) Disaster Recovery
7 9 (15.00%) Observability
7 9 (15.00%) Test Automation
8 8 (13.33%) Continuous Improvement
9 7 (11.67%) Root Cause Analysis
9 7 (11.67%) Task Automation
9 7 (11.67%) Workflow
10 6 (10.00%) Continuous Integration
10 6 (10.00%) Deployment Automation
10 6 (10.00%) Incident Response
10 6 (10.00%) Microservices
Programming Languages
1 35 (58.33%) Python
2 27 (45.00%) Bash
3 14 (23.33%) PowerShell
3 14 (23.33%) Shell Script
4 9 (15.00%) Go
4 9 (15.00%) Java
5 7 (11.67%) Perl
5 7 (11.67%) PHP
6 6 (10.00%) JavaScript
7 5 (8.33%) C
7 5 (8.33%) SQL
8 1 (1.67%) C#
8 1 (1.67%) Ruby
Qualifications
1 20 (33.33%) Security Cleared
2 11 (18.33%) DV Cleared
3 9 (15.00%) SC Cleared
4 7 (11.67%) RHCE
5 5 (8.33%) Degree
5 5 (8.33%) RHCSA
6 3 (5.00%) AWS Certification
7 2 (3.33%) AWS Certified Solutions Architect
7 2 (3.33%) MCSE
7 2 (3.33%) Microsoft Certification
Quality Assurance & Compliance
1 7 (11.67%) NCSC
2 4 (6.67%) PCI DSS
2 4 (6.67%) QA
3 1 (1.67%) ISO/IEC 27001
3 1 (1.67%) NIST
System Software
1 17 (28.33%) Active Directory
1 17 (28.33%) VMware Infrastructure
2 16 (26.67%) Docker
3 6 (10.00%) Hyper-V
3 6 (10.00%) vSphere
4 5 (8.33%) KVM
5 2 (3.33%) VirtualBox
6 1 (1.67%) Ceph
6 1 (1.67%) Firmware
6 1 (1.67%) QEMU
6 1 (1.67%) Veritas Cluster Server
6 1 (1.67%) Virtual Machines
6 1 (1.67%) VMware ESXi
Systems Management
1 32 (53.33%) Ansible
2 21 (35.00%) Terraform
3 18 (30.00%) Kubernetes
4 9 (15.00%) Grafana
4 9 (15.00%) Progress Chef
4 9 (15.00%) Puppet
5 8 (13.33%) Prometheus
6 7 (11.67%) Jamf Pro
6 7 (11.67%) Packer
7 5 (8.33%) Nagios
8 4 (6.67%) WMI
9 3 (5.00%) Salt
10 2 (3.33%) Icinga
10 2 (3.33%) Red Hat Satellite
10 2 (3.33%) VxRail
10 2 (3.33%) WSUS
11 1 (1.67%) Argo
11 1 (1.67%) HAProxy
11 1 (1.67%) Nessus
11 1 (1.67%) SCCM
Vendors
1 26 (43.33%) VMware
2 21 (35.00%) Red Hat
3 14 (23.33%) Oracle
4 11 (18.33%) Microsoft
5 10 (16.67%) Splunk
6 7 (11.67%) Okta
7 5 (8.33%) Cisco
8 4 (6.67%) ServiceNow
9 3 (5.00%) MuleSoft
9 3 (5.00%) Rackspace
10 2 (3.33%) Dell
10 2 (3.33%) IBM
10 2 (3.33%) New Relic
10 2 (3.33%) Zend
11 1 (1.67%) Bloomberg
11 1 (1.67%) EMC
11 1 (1.67%) HP
11 1 (1.67%) Qualys
11 1 (1.67%) Rapid7
11 1 (1.67%) Remedy