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

6 months to
21 Dec 2025
Same period 2024 Same period 2023
Rank 541 423 499
Rank change year-on-year -118 +76 +69
Contract jobs citing CentOS 45 112 104
As % of all contract jobs in the UK 0.12% 0.33% 0.24%
As % of the Operating Systems category 0.95% 2.35% 1.58%
Number of daily rates quoted 28 58 71
10th Percentile £418 £352 £400
25th Percentile £519 £452 £428
Median daily rate (50th Percentile) £550 £575 £550
Median % change year-on-year -4.35% +4.55% -12.00%
75th Percentile £625 £738 £600
90th Percentile £680 £750 £650
UK excluding London median daily rate £550 £605 £525
% change year-on-year -9.09% +15.24% -12.50%
Number of hourly rates quoted 0 3 1
10th Percentile - £69.91 -
25th Percentile - £85.70 £21.25
Median hourly rate - £112.00 £22.50
Median % change year-on-year - +397.78% -63.41%
75th Percentile - - £23.75
90th Percentile - - -
UK excluding London median hourly rate - £63.79 £22.50
% change year-on-year - +183.49% -62.50%

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 4,744 4,766 6,592
As % of all contract IT jobs advertised in the UK 12.91% 14.04% 15.05%
Number of daily rates quoted 3,082 2,979 4,486
10th Percentile £175 £200 £180
25th Percentile £263 £317 £300
Median daily rate (50th Percentile) £450 £475 £475
Median % change year-on-year -5.26% - -7.32%
75th Percentile £556 £588 £600
90th Percentile £655 £688 £700
UK excluding London median daily rate £404 £425 £430
% change year-on-year -4.97% -1.16% -4.44%
Number of hourly rates quoted 358 178 325
10th Percentile £15.50 £16.18 £14.25
25th Percentile £18.87 £21.01 £17.75
Median hourly rate £25.15 £41.75 £32.50
Median % change year-on-year -39.76% +28.46% +34.02%
75th Percentile £62.00 £65.00 £65.00
90th Percentile £68.00 £70.00 £73.75
UK excluding London median hourly rate £25.11 £39.50 £27.50
% change year-on-year -36.42% +43.64% +25.00%

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 December 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 December 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 -94 43 £550 -4.35% 16
UK excluding London -90 22 £550 -9.09% 14
London -14 15 £425 -22.73% 4
South West -13 8 £550 +11.39% 2
Work from Home -27 7 £494 -3.24% 3
South East -47 5 £503 -12.61% 5
West Midlands -35 4 £540 +45.95% 2
Midlands -41 4 £540 +45.95% 3
East of England - 4 £488 - 3
Yorkshire -55 1 - - 1
North of England -63 1 - - 2

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 3 (6.67%) Apache
1 3 (6.67%) Microsoft Exchange
2 2 (4.44%) Oracle HTTP Server
2 2 (4.44%) Tomcat
2 2 (4.44%) WebLogic
3 1 (2.22%) Apache Spark
3 1 (2.22%) OpenStack
3 1 (2.22%) SharePoint
Applications
1 3 (6.67%) Microsoft Office
Business Applications
1 1 (2.22%) Remedy ITSM
Cloud Services
1 17 (37.78%) AWS
2 10 (22.22%) Azure
3 9 (20.00%) GCP
4 6 (13.33%) Amazon ECS
4 6 (13.33%) AWS CloudFormation
4 6 (13.33%) AWS Fargate
4 6 (13.33%) Entra ID
4 6 (13.33%) OpenShift
4 6 (13.33%) Virtual Private Cloud
5 5 (11.11%) GitHub
5 5 (11.11%) npm
6 2 (4.44%) Microsoft 365
7 1 (2.22%) Amazon S3
7 1 (2.22%) IaaS
Communications & Networking
1 15 (33.33%) DNS
2 7 (15.56%) DHCP
2 7 (15.56%) Firewall
3 5 (11.11%) AMQP
4 4 (8.89%) DKIM
4 4 (8.89%) DMARC
4 4 (8.89%) SMTP
4 4 (8.89%) TCP/IP
5 3 (6.67%) SAN
5 3 (6.67%) Skype
6 2 (4.44%) HTTP
6 2 (4.44%) NAS
6 2 (4.44%) SSL
6 2 (4.44%) VLAN
7 1 (2.22%) Asterisk PBX
7 1 (2.22%) Kerberos
7 1 (2.22%) RTP
7 1 (2.22%) VoIP
7 1 (2.22%) VPN
7 1 (2.22%) VXLAN
Database & Business Intelligence
1 6 (13.33%) MongoDB
1 6 (13.33%) RDBMS
1 6 (13.33%) Relational Database
2 4 (8.89%) Amazon RDS
3 3 (6.67%) Elasticsearch
4 1 (2.22%) Apache Hive
4 1 (2.22%) Hadoop
4 1 (2.22%) Impala
4 1 (2.22%) InfluxDB
Development Applications
1 7 (15.56%) Jenkins
2 6 (13.33%) Git
2 6 (13.33%) GitLab
3 5 (11.11%) Maven
4 4 (8.89%) Terragrunt
5 1 (2.22%) JIRA
General
1 10 (22.22%) Analytical Skills
1 10 (22.22%) Social Skills
2 7 (15.56%) Finance
3 5 (11.11%) Financial Institution
4 3 (6.67%) Public Sector
5 1 (2.22%) Billing
5 1 (2.22%) Documentation Skills
5 1 (2.22%) Inclusion and Diversity
5 1 (2.22%) Telecoms
Job Titles
1 6 (13.33%) DevOps Engineer
1 6 (13.33%) Linux Engineer
2 5 (11.11%) Developer
2 5 (11.11%) Lead
2 5 (11.11%) Lead DevOps
2 5 (11.11%) Lead DevOps Engineer
2 5 (11.11%) Support Engineer
2 5 (11.11%) Wintel Engineer
3 4 (8.89%) Administrator
3 4 (8.89%) Applications Engineer
3 4 (8.89%) Applications Support
3 4 (8.89%) Applications Support Engineer
3 4 (8.89%) Infrastructure Engineer
4 3 (6.67%) AWS DevOps
4 3 (6.67%) AWS DevOps Engineer
4 3 (6.67%) Infrastructure Architect
4 3 (6.67%) Kafka Engineer
4 3 (6.67%) Linux Developer
4 3 (6.67%) Linux Systems Engineer
4 3 (6.67%) Unix Developer
Libraries, Frameworks & Software Standards
1 7 (15.56%) Kafka
1 7 (15.56%) Keycloak
2 6 (13.33%) cloud-init
3 5 (11.11%) LDAP
4 4 (8.89%) AWS CDK
4 4 (8.89%) Node.js
4 4 (8.89%) React
5 3 (6.67%) AngularJS
5 3 (6.67%) CSS
5 3 (6.67%) Electron
5 3 (6.67%) HTML
5 3 (6.67%) JNI
6 2 (4.44%) Middleware
7 1 (2.22%) Apache NiFi
7 1 (2.22%) Django
7 1 (2.22%) FreeSWITCH
7 1 (2.22%) Loki
7 1 (2.22%) OpenID
7 1 (2.22%) REST
Miscellaneous
1 9 (20.00%) PKI
2 6 (13.33%) Data Centre
2 6 (13.33%) Hedge funds
3 5 (11.11%) Legacy Applications
4 3 (6.67%) Cloud Native
4 3 (6.67%) SCADA
5 2 (4.44%) Distributed Systems
5 2 (4.44%) Enterprise Storage
5 2 (4.44%) Hybrid Cloud
5 2 (4.44%) Linux Command Line
6 1 (2.22%) Client/Server
6 1 (2.22%) CUDA
6 1 (2.22%) Data Protection Act
6 1 (2.22%) Eurex
6 1 (2.22%) Onboarding
6 1 (2.22%) Private Cloud
6 1 (2.22%) Public Cloud
6 1 (2.22%) SWIFT Messaging Network
Operating Systems
1 45 (100.00%) Linux
2 29 (64.44%) Red Hat Enterprise Linux
3 19 (42.22%) Ubuntu
4 13 (28.89%) Unix
4 13 (28.89%) Windows
4 13 (28.89%) Windows Server
5 4 (8.89%) Mac OS
6 3 (6.67%) Oracle Linux
6 3 (6.67%) Windows 10
6 3 (6.67%) Windows Server 2012
7 2 (4.44%) Windows Server 2016
7 2 (4.44%) Windows Server 2019
8 1 (2.22%) Windows Server 2003
Processes & Methodologies
1 20 (44.44%) CI/CD
2 13 (28.89%) High Availability
2 13 (28.89%) Infrastructure as Code
2 13 (28.89%) Problem-Solving
3 12 (26.67%) DevOps
4 11 (24.44%) Containerisation
5 8 (17.78%) Microservices
5 8 (17.78%) Task Automation
6 7 (15.56%) Load Balancing
6 7 (15.56%) Observability
6 7 (15.56%) Root Cause Analysis
7 6 (13.33%) Configuration Management
7 6 (13.33%) Continuous Improvement
7 6 (13.33%) Incident Response
7 6 (13.33%) Infrastructure Engineering
7 6 (13.33%) ITIL
7 6 (13.33%) Test Automation
8 5 (11.11%) Disaster Recovery
8 5 (11.11%) Site Reliability Engineering
9 4 (8.89%) Decision-Making
Programming Languages
1 26 (57.78%) Python
2 24 (53.33%) Bash
3 11 (24.44%) PowerShell
4 10 (22.22%) Shell Script
5 9 (20.00%) Java
6 8 (17.78%) Go
7 5 (11.11%) Perl
8 4 (8.89%) C
8 4 (8.89%) JavaScript
8 4 (8.89%) SQL
9 1 (2.22%) C#
9 1 (2.22%) Ruby
Qualifications
1 19 (42.22%) Security Cleared
2 12 (26.67%) SC Cleared
3 7 (15.56%) DV Cleared
3 7 (15.56%) RHCE
4 5 (11.11%) RHCSA
5 3 (6.67%) AWS Certification
5 3 (6.67%) Degree
5 3 (6.67%) MCSE
5 3 (6.67%) Microsoft Certification
6 2 (4.44%) AWS Certified Solutions Architect
7 1 (2.22%) BPSS Clearance
Quality Assurance & Compliance
1 6 (13.33%) NCSC
2 1 (2.22%) ISO/IEC 27001
2 1 (2.22%) NIST
2 1 (2.22%) PCI DSS
2 1 (2.22%) QA
System Software
1 11 (24.44%) Docker
2 9 (20.00%) Active Directory
2 9 (20.00%) VMware Infrastructure
3 5 (11.11%) KVM
4 4 (8.89%) Postfix
5 3 (6.67%) Hyper-V
6 2 (4.44%) vSphere
7 1 (2.22%) Apache ZooKeeper
7 1 (2.22%) Ceph
7 1 (2.22%) Firmware
7 1 (2.22%) HDFS
7 1 (2.22%) QEMU
Systems Management
1 22 (48.89%) Ansible
2 17 (37.78%) Terraform
3 15 (33.33%) Kubernetes
4 10 (22.22%) Grafana
5 8 (17.78%) Prometheus
6 6 (13.33%) Jamf Pro
6 6 (13.33%) Packer
7 5 (11.11%) Progress Chef
8 4 (8.89%) Puppet
9 3 (6.67%) Nagios
9 3 (6.67%) WSUS
10 2 (4.44%) Nessus
10 2 (4.44%) Red Hat Satellite
11 1 (2.22%) Apache Ranger
11 1 (2.22%) Argo
11 1 (2.22%) Hadoop YARN
11 1 (2.22%) HAProxy
11 1 (2.22%) Kibana
11 1 (2.22%) SCCM
11 1 (2.22%) VxRail
Vendors
1 20 (44.44%) Red Hat
2 13 (28.89%) Oracle
3 11 (24.44%) VMware
4 9 (20.00%) Splunk
5 6 (13.33%) Okta
6 5 (11.11%) Microsoft
7 2 (4.44%) Cisco
8 1 (2.22%) Bloomberg
8 1 (2.22%) Cloudera
8 1 (2.22%) Dell
8 1 (2.22%) Dialogic
8 1 (2.22%) EMC
8 1 (2.22%) HP
8 1 (2.22%) Metaswitch
8 1 (2.22%) NVIDIA
8 1 (2.22%) Rapid7
8 1 (2.22%) Remedy
8 1 (2.22%) ServiceNow
8 1 (2.22%) Tanium
8 1 (2.22%) Tenable