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 21 November 2025, with comparisons to the same periods in the previous two years.

6 months to
21 Nov 2025
Same period 2024 Same period 2023
Rank 515 463 509
Rank change year-on-year -52 +46 +76
Contract jobs citing CentOS 64 101 109
As % of all contract jobs in the UK 0.18% 0.28% 0.24%
As % of the Operating Systems category 1.32% 1.96% 1.55%
Number of daily rates quoted 41 54 76
10th Percentile £400 £351 £363
25th Percentile £525 £431 £400
Median daily rate (50th Percentile) £550 £531 £550
Median % change year-on-year +3.53% -3.41% -8.33%
75th Percentile £625 £675 £600
90th Percentile £660 £738 £647
UK excluding London median daily rate £550 £575 £541
% change year-on-year -4.35% +6.33% -9.88%
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 4,848 5,148 7,052
As % of all contract IT jobs advertised in the UK 13.51% 14.11% 15.24%
Number of daily rates quoted 3,131 3,153 4,786
10th Percentile £181 £200 £182
25th Percentile £272 £325 £303
Median daily rate (50th Percentile) £450 £475 £480
Median % change year-on-year -5.26% -1.04% -5.88%
75th Percentile £574 £588 £611
90th Percentile £662 £688 £700
UK excluding London median daily rate £408 £450 £440
% change year-on-year -9.44% +2.27% -2.22%
Number of hourly rates quoted 374 221 351
10th Percentile £15.50 £16.25 £15.25
25th Percentile £18.87 £23.10 £18.50
Median hourly rate £24.00 £50.00 £35.00
Median % change year-on-year -52.00% +42.86% +40.00%
75th Percentile £43.75 £68.00 £65.00
90th Percentile £67.00 £70.00 £76.53
UK excluding London median hourly rate £23.58 £50.00 £28.75
% change year-on-year -52.85% +73.91% +27.78%

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 21 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 11 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 21 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 -49 62 £550 +2.33% 37
UK excluding London -77 33 £550 -4.35% 31
London -9 20 £550 +10.00% 12
Work from Home -6 14 £540 +2.86% 13
South East -24 13 £550 -4.35% 14
South West -3 8 £550 +4.76% 6
East of England - 6 £483 - 1
West Midlands -29 4 £540 +45.95% 3
Midlands -35 4 £540 +45.95% 4
Yorkshire -44 2 £365 -49.66% 1
North of England -56 2 £365 -49.66% 4

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 (18.75%) Apache
2 3 (4.69%) Microsoft Exchange
2 3 (4.69%) Tomcat
3 2 (3.13%) Confluence
3 2 (3.13%) OpenStack
3 2 (3.13%) Oracle HTTP Server
3 2 (3.13%) WebLogic
4 1 (1.56%) Anypoint
4 1 (1.56%) SharePoint
Applications
1 3 (4.69%) Microsoft Office
Business Applications
1 1 (1.56%) Remedy ITSM
Cloud Services
1 23 (35.94%) AWS
2 10 (15.63%) GCP
3 9 (14.06%) Azure
4 7 (10.94%) Amazon ECS
4 7 (10.94%) AWS CloudFormation
4 7 (10.94%) AWS Fargate
4 7 (10.94%) Entra ID
4 7 (10.94%) Virtual Private Cloud
5 6 (9.38%) OpenShift
6 5 (7.81%) GitHub
6 5 (7.81%) npm
7 1 (1.56%) Amazon S3
7 1 (1.56%) Cloud Computing
7 1 (1.56%) IaaS
7 1 (1.56%) IBM Cloud
7 1 (1.56%) Microsoft 365
7 1 (1.56%) OCI
Communications & Networking
1 18 (28.13%) DNS
2 9 (14.06%) Firewall
3 8 (12.50%) DHCP
4 6 (9.38%) TCP/IP
5 5 (7.81%) AMQP
5 5 (7.81%) SAN
5 5 (7.81%) VPN
6 4 (6.25%) DKIM
6 4 (6.25%) DMARC
6 4 (6.25%) SMTP
7 3 (4.69%) NAS
7 3 (4.69%) Skype
7 3 (4.69%) VLAN
7 3 (4.69%) VSAN
8 2 (3.13%) BGP
8 2 (3.13%) Ethernet VPN
8 2 (3.13%) HTTP
8 2 (3.13%) MPLS
8 2 (3.13%) SSL
9 1 (1.56%) VoIP
Database & Business Intelligence
1 9 (14.06%) MongoDB
2 6 (9.38%) RDBMS
2 6 (9.38%) Relational Database
3 4 (6.25%) Amazon RDS
3 4 (6.25%) MySQL
4 3 (4.69%) Elasticsearch
4 3 (4.69%) MariaDB
5 2 (3.13%) InfluxDB
5 2 (3.13%) NoSQL
Development Applications
1 12 (18.75%) Jenkins
2 10 (15.63%) GitLab
3 8 (12.50%) Git
4 6 (9.38%) JIRA
5 5 (7.81%) Maven
6 4 (6.25%) MSI
6 4 (6.25%) Robot Framework
6 4 (6.25%) Sonatype Nexus
6 4 (6.25%) Terragrunt
7 3 (4.69%) Vagrant
8 2 (3.13%) Bitbucket
9 1 (1.56%) Postman
9 1 (1.56%) TeamCity
General
1 13 (20.31%) Social Skills
2 9 (14.06%) Analytical Skills
2 9 (14.06%) Finance
3 5 (7.81%) Financial Institution
3 5 (7.81%) Public Sector
4 1 (1.56%) Billing
4 1 (1.56%) Documentation Skills
4 1 (1.56%) Inclusion and Diversity
4 1 (1.56%) Telecoms
Job Titles
1 8 (12.50%) Administrator
1 8 (12.50%) DevOps Engineer
1 8 (12.50%) Infrastructure Engineer
2 7 (10.94%) Developer
2 7 (10.94%) Linux Engineer
3 6 (9.38%) Integration Engineer
3 6 (9.38%) Lead
3 6 (9.38%) Lead DevOps
3 6 (9.38%) Lead DevOps Engineer
4 5 (7.81%) Senior
4 5 (7.81%) Support Engineer
4 5 (7.81%) Wintel Engineer
5 4 (6.25%) 3rd Line Engineer
5 4 (6.25%) Linux Administrator
5 4 (6.25%) Linux Systems Engineer
5 4 (6.25%) Systems Administrator
6 3 (4.69%) Applications Engineer
6 3 (4.69%) AWS Engineer
6 3 (4.69%) Full-Stack Developer
6 3 (4.69%) Linux Specialist
Libraries, Frameworks & Software Standards
1 8 (12.50%) Keycloak
2 7 (10.94%) cloud-init
2 7 (10.94%) Kafka
3 6 (9.38%) Middleware
4 5 (7.81%) LDAP
5 4 (6.25%) AWS CDK
5 4 (6.25%) Node.js
5 4 (6.25%) React
6 3 (4.69%) AngularJS
6 3 (4.69%) CSS
6 3 (4.69%) Electron
6 3 (4.69%) HTML
6 3 (4.69%) JNI
6 3 (4.69%) LAMP
6 3 (4.69%) REST
7 2 (3.13%) JSON
7 2 (3.13%) SOAP
7 2 (3.13%) XML
7 2 (3.13%) YAML
7 2 (3.13%) Zend Framework
Miscellaneous
1 14 (21.88%) PKI
2 10 (15.63%) Data Centre
3 6 (9.38%) Hedge funds
4 5 (7.81%) Legacy Applications
5 4 (6.25%) Enterprise Storage
6 3 (4.69%) Cloud Native
6 3 (4.69%) Linux Command Line
6 3 (4.69%) SCADA
7 2 (3.13%) Onboarding
8 1 (1.56%) Client/Server
8 1 (1.56%) CUDA
8 1 (1.56%) Data Protection Act
8 1 (1.56%) Distributed Systems
8 1 (1.56%) Enterprise Software
8 1 (1.56%) Eurex
8 1 (1.56%) Hybrid Cloud
8 1 (1.56%) Private Cloud
8 1 (1.56%) Public Cloud
8 1 (1.56%) SWIFT Messaging Network
Operating Systems
1 64 (100.00%) Linux
2 43 (67.19%) Red Hat Enterprise Linux
3 28 (43.75%) Ubuntu
4 24 (37.50%) Windows
5 20 (31.25%) Unix
6 18 (28.13%) Windows Server
7 7 (10.94%) Windows Server 2019
8 4 (6.25%) Mac OS
8 4 (6.25%) Oracle Linux
9 3 (4.69%) Debian
9 3 (4.69%) Windows 10
9 3 (4.69%) Windows Server 2012
10 2 (3.13%) Windows Server 2016
11 1 (1.56%) SUSE
11 1 (1.56%) VMS
11 1 (1.56%) Windows Server 2003
Processes & Methodologies
1 24 (37.50%) CI/CD
2 22 (34.38%) DevOps
3 17 (26.56%) Containerisation
4 14 (21.88%) High Availability
4 14 (21.88%) Infrastructure as Code
5 13 (20.31%) Agile
5 13 (20.31%) Problem-Solving
6 10 (15.63%) Configuration Management
6 10 (15.63%) Infrastructure Engineering
6 10 (15.63%) Test Automation
7 9 (14.06%) Continuous Improvement
7 9 (14.06%) Disaster Recovery
7 9 (14.06%) Observability
8 8 (12.50%) Load Balancing
8 8 (12.50%) Root Cause Analysis
8 8 (12.50%) Task Automation
9 7 (10.94%) ITIL
9 7 (10.94%) Microservices
9 7 (10.94%) Workflow
10 6 (9.38%) Deployment Automation
Programming Languages
1 37 (57.81%) Python
2 31 (48.44%) Bash
3 15 (23.44%) PowerShell
4 12 (18.75%) Shell Script
5 10 (15.63%) Java
6 9 (14.06%) Go
7 7 (10.94%) Perl
7 7 (10.94%) PHP
8 6 (9.38%) JavaScript
8 6 (9.38%) SQL
9 5 (7.81%) C
10 1 (1.56%) C#
10 1 (1.56%) Ruby
Qualifications
1 24 (37.50%) Security Cleared
2 12 (18.75%) DV Cleared
2 12 (18.75%) SC Cleared
3 7 (10.94%) RHCE
4 5 (7.81%) RHCSA
5 4 (6.25%) Degree
6 3 (4.69%) AWS Certification
6 3 (4.69%) MCSE
6 3 (4.69%) Microsoft Certification
7 2 (3.13%) AWS Certified Solutions Architect
8 1 (1.56%) BPSS Clearance
Quality Assurance & Compliance
1 7 (10.94%) NCSC
2 4 (6.25%) QA
3 2 (3.13%) PCI DSS
4 1 (1.56%) ISO/IEC 27001
4 1 (1.56%) NIST
System Software
1 17 (26.56%) Docker
1 17 (26.56%) VMware Infrastructure
2 16 (25.00%) Active Directory
3 6 (9.38%) vSphere
4 5 (7.81%) KVM
5 4 (6.25%) Hyper-V
5 4 (6.25%) Postfix
6 2 (3.13%) VirtualBox
7 1 (1.56%) Ceph
7 1 (1.56%) Firmware
7 1 (1.56%) QEMU
7 1 (1.56%) Veritas Cluster Server
7 1 (1.56%) Virtual Machines
7 1 (1.56%) VMware ESXi
Systems Management
1 31 (48.44%) Ansible
2 22 (34.38%) Terraform
3 18 (28.13%) Kubernetes
4 10 (15.63%) Grafana
5 9 (14.06%) Progress Chef
5 9 (14.06%) Puppet
6 8 (12.50%) Prometheus
7 7 (10.94%) Jamf Pro
7 7 (10.94%) Packer
8 5 (7.81%) Nagios
9 4 (6.25%) WMI
10 3 (4.69%) Salt
10 3 (4.69%) WSUS
11 2 (3.13%) Icinga
11 2 (3.13%) Red Hat Satellite
11 2 (3.13%) VxRail
12 1 (1.56%) Argo
12 1 (1.56%) Kibana
12 1 (1.56%) SCCM
12 1 (1.56%) vCenter Server
Vendors
1 24 (37.50%) VMware
2 22 (34.38%) Red Hat
3 15 (23.44%) Oracle
4 10 (15.63%) Microsoft
4 10 (15.63%) Splunk
5 7 (10.94%) Okta
6 5 (7.81%) Cisco
7 3 (4.69%) MuleSoft
7 3 (4.69%) Rackspace
8 2 (3.13%) Dell
8 2 (3.13%) IBM
8 2 (3.13%) New Relic
8 2 (3.13%) ServiceNow
8 2 (3.13%) Zend
9 1 (1.56%) Bloomberg
9 1 (1.56%) Dialogic
9 1 (1.56%) Foundry
9 1 (1.56%) Qualys
9 1 (1.56%) Remedy
9 1 (1.56%) Vertica