CentOS Linux
UK

The following table provides summary statistics for contract job vacancies with a requirement for CentOS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CentOS over the 6 months to 27 April 2024 with a comparison to the same period in the previous 2 years.

6 months to
27 Apr 2024
Same period 2023 Same period 2022
Rank 518 513 554
Rank change year-on-year -5 +41 -77
Contract jobs citing CentOS 80 207 310
As % of all contract jobs advertised in the UK 0.18% 0.35% 0.35%
As % of the Operating Systems category 1.39% 2.13% 2.31%
Number of daily rates quoted 53 152 213
10th Percentile £313 £458 £400
25th Percentile £456 £505 £438
Median daily rate (50th Percentile) £500 £625 £550
Median % change year-on-year -20.00% +13.64% +15.79%
75th Percentile £538 £700 £650
90th Percentile £588 £723 £722
UK excluding London median daily rate £394 £593 £563
% change year-on-year -33.54% +5.33% +32.35%
Number of hourly rates quoted 3 2 6
10th Percentile - £17.72 £23.19
25th Percentile £21.25 £18.10 £35.54
Median hourly rate £22.50 £18.74 £69.05
Median % change year-on-year +20.10% -72.87% +278.36%
75th Percentile £23.75 £19.37 -
90th Percentile - £19.75 -
UK excluding London median hourly rate £22.50 £17.47 £69.05
% change year-on-year +28.79% -74.70% +278.36%

All Operating Systems
UK

CentOS is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for operating system skills.

Contract vacancies with a requirement for operating system skills 5,775 9,719 13,427
As % of all contract IT jobs advertised in the UK 13.34% 16.25% 15.11%
Number of daily rates quoted 3,885 6,848 9,128
10th Percentile £184 £189 £175
25th Percentile £300 £326 £340
Median daily rate (50th Percentile) £470 £505 £500
Median % change year-on-year -6.93% +1.00% +11.11%
75th Percentile £591 £638 £615
90th Percentile £700 £717 £700
UK excluding London median daily rate £450 £475 £425
% change year-on-year -5.26% +11.76% +8.97%
Number of hourly rates quoted 394 422 633
10th Percentile £12.75 £14.25 £13.25
25th Percentile £15.31 £17.75 £15.63
Median hourly rate £22.00 £38.75 £22.28
Median % change year-on-year -43.23% +73.92% +23.78%
75th Percentile £59.88 £65.00 £52.50
90th Percentile £70.00 £75.00 £65.00
UK excluding London median hourly rate £21.00 £31.25 £20.00
% change year-on-year -32.80% +56.25% +17.65%

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
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing CentOS.

Daily rate trend for CentOS in the UK

CentOS
Daily Rate Histogram

Daily rate distribution for jobs citing CentOS over the 6 months to 27 April 2024.

Daily rate histogram for CentOS in the UK

CentOS
Contractor Hourly Rate Trend

3-month moving average hourly rates quoted in jobs citing CentOS.

Hourly rate trend for CentOS in the UK

CentOS
Top 14 Contract 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 27 April 2024. 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 +9 68 £505 -19.16% 52
London +69 44 £510 -21.54% 11
UK excluding London -11 29 £394 -33.54% 46
Work from Home +100 22 £475 -27.81% 33
North of England +14 11 £463 -27.45% 7
Yorkshire +22 8 £463 -17.04%
Scotland +31 6 £325 -54.55% 5
South West +2 5 £750 +36.99% 9
East of England +14 3 - - 4
North West -5 3 - - 6
West Midlands +20 2 - - 6
Midlands +11 2 - - 9
South East +6 2 - - 11
Wales +15 1 - - 1

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 28 (35.00%) OpenStack
2 12 (15.00%) nginx
3 7 (8.75%) IIS
4 6 (7.50%) Apache
5 4 (5.00%) Apache Solr
6 2 (2.50%) SAS
6 2 (2.50%) Traefik
7 1 (1.25%) Confluence
7 1 (1.25%) Microsoft Exchange
Cloud Services
1 20 (25.00%) AWS
2 17 (21.25%) Slack
3 12 (15.00%) Amazon EC2
4 9 (11.25%) Virtual Private Cloud
5 7 (8.75%) Amazon S3
5 7 (8.75%) Azure
5 7 (8.75%) GCP
5 7 (8.75%) Route 53
6 5 (6.25%) PaaS
7 4 (5.00%) Amazon ELB
7 4 (5.00%) Amazon Kinesis
7 4 (5.00%) AWS KMS
7 4 (5.00%) WhatsApp
8 3 (3.75%) Amazon CloudWatch
8 3 (3.75%) AWS CloudFormation
8 3 (3.75%) Cloud Computing
8 3 (3.75%) Entra ID
9 2 (2.50%) Amazon ECS
9 2 (2.50%) GitHub
9 2 (2.50%) IaaS
Communications & Networking
1 10 (12.50%) DNS
2 7 (8.75%) TCP/IP
3 5 (6.25%) Asterisk PBX
3 5 (6.25%) VoIP
4 4 (5.00%) HTTPS
4 4 (5.00%) IPsec
5 3 (3.75%) DHCP
5 3 (3.75%) Firewall
5 3 (3.75%) LAN
5 3 (3.75%) WAN
6 2 (2.50%) Cisco ASA
6 2 (2.50%) SAN
6 2 (2.50%) VPN
6 2 (2.50%) Wireless
6 2 (2.50%) WLAN
7 1 (1.25%) 4G
7 1 (1.25%) Diameter Protocol
7 1 (1.25%) Fibre Channel
7 1 (1.25%) Wi-Fi
7 1 (1.25%) Wireshark
Database & Business Intelligence
1 22 (27.50%) Elasticsearch
2 9 (11.25%) Couchbase
2 9 (11.25%) MySQL
2 9 (11.25%) NoSQL
3 8 (10.00%) PostgreSQL
4 6 (7.50%) SQL Server
5 5 (6.25%) Amazon RDS
5 5 (6.25%) Data Warehouse
6 3 (3.75%) MariaDB
7 2 (2.50%) MongoDB
7 2 (2.50%) Relational Database
8 1 (1.25%) Azure SQL Database
8 1 (1.25%) Metadata
8 1 (1.25%) RDBMS
8 1 (1.25%) Redis
Development Applications
1 30 (37.50%) Jenkins
2 8 (10.00%) Git
2 8 (10.00%) GitLab
3 2 (2.50%) JIRA
4 1 (1.25%) Bitbucket
4 1 (1.25%) Sonatype Nexus
4 1 (1.25%) Vagrant
General
1 8 (10.00%) Social Skills
2 6 (7.50%) Finance
2 6 (7.50%) Telecoms
3 4 (5.00%) Legal
4 2 (2.50%) Public Sector
5 1 (1.25%) Aerospace
5 1 (1.25%) Analytical Skills
5 1 (1.25%) Back Office
Job Titles
1 15 (18.75%) DevOps Engineer
2 12 (15.00%) Architect
3 9 (11.25%) Lead
4 8 (10.00%) Infrastructure Engineer
4 8 (10.00%) Solutions Architect
4 8 (10.00%) Technical Leader
5 7 (8.75%) Linux Engineer
5 7 (8.75%) VMware Architect
6 6 (7.50%) 3rd Line Support
6 6 (7.50%) Support Engineer
7 5 (6.25%) Systems Engineer
8 4 (5.00%) Applications Engineer
8 4 (5.00%) Applications Support
8 4 (5.00%) Applications Support Engineer
8 4 (5.00%) DevOps Architect
9 3 (3.75%) 3rd Line Engineer
9 3 (3.75%) Developer
9 3 (3.75%) Infrastructure Specialist
9 3 (3.75%) Network Engineer
9 3 (3.75%) Site Reliability Engineer
Libraries, Frameworks & Software Standards
1 26 (32.50%) Elastic Stack
2 6 (7.50%) JSON
3 5 (6.25%) LAPP Stack
4 4 (5.00%) CSS
4 4 (5.00%) FIX Protocol
4 4 (5.00%) HTML
4 4 (5.00%) HTML5
4 4 (5.00%) LEMP Stack
4 4 (5.00%) RabbitMQ
4 4 (5.00%) YAML
5 2 (2.50%) cloud-init
5 2 (2.50%) CodeIgniter
5 2 (2.50%) Laravel
6 1 (1.25%) Apache NiFi
6 1 (1.25%) ARM Templates
6 1 (1.25%) Kafka
6 1 (1.25%) Lambda Expressions
6 1 (1.25%) Node.js
6 1 (1.25%) React
6 1 (1.25%) Redfish
Miscellaneous
1 17 (21.25%) Onboarding
2 10 (12.50%) Data Centre
3 6 (7.50%) Public Cloud
4 5 (6.25%) Management Information System
5 4 (5.00%) Cloud Native
5 4 (5.00%) PKI
6 2 (2.50%) Clustering
6 2 (2.50%) Linux Command Line
7 1 (1.25%) Distributed Systems
7 1 (1.25%) Hedge funds
7 1 (1.25%) Self-Motivation
7 1 (1.25%) Virtual Team
Operating Systems
1 80 (100.00%) Linux
2 38 (47.50%) Red Hat Enterprise Linux
3 19 (23.75%) Windows
4 15 (18.75%) Windows Server
5 14 (17.50%) Ubuntu
6 10 (12.50%) Windows Server 2016
7 9 (11.25%) Debian
8 8 (10.00%) Windows Server 2012
9 6 (7.50%) Windows Server 2008
9 6 (7.50%) Windows Server 2019
10 5 (6.25%) VMS
11 4 (5.00%) Unix
12 2 (2.50%) Amazon Linux
12 2 (2.50%) Rocky
12 2 (2.50%) Windows 10
13 1 (1.25%) Alpine Linux
13 1 (1.25%) Data ONTAP
13 1 (1.25%) Fedora
Processes & Methodologies
1 37 (46.25%) CI/CD
2 28 (35.00%) Infrastructure as Code
3 26 (32.50%) DevOps
4 25 (31.25%) Agile
5 21 (26.25%) Observability
6 15 (18.75%) Configuration Management
7 9 (11.25%) Migration
8 8 (10.00%) Infrastructure Engineering
9 7 (8.75%) Containerisation
9 7 (8.75%) Disaster Recovery
9 7 (8.75%) Problem-Solving
10 6 (7.50%) Cost Reduction
10 6 (7.50%) Microservices
11 5 (6.25%) Continuous Improvement
11 5 (6.25%) Site Reliability Engineering
12 4 (5.00%) Information Security
12 4 (5.00%) OOP
12 4 (5.00%) Risk Assessment
12 4 (5.00%) SDLC
12 4 (5.00%) Software Delivery
Programming Languages
1 37 (46.25%) Python
2 26 (32.50%) Shell Script
3 20 (25.00%) Bash
4 12 (15.00%) SQL
5 10 (12.50%) PHP
6 8 (10.00%) PowerShell
7 7 (8.75%) Go
8 5 (6.25%) T-SQL
9 2 (2.50%) Java
9 2 (2.50%) Perl
9 2 (2.50%) Ruby
10 1 (1.25%) C
10 1 (1.25%) C++
10 1 (1.25%) Groovy
10 1 (1.25%) JavaScript
10 1 (1.25%) Korn
10 1 (1.25%) Scala
Qualifications
1 14 (17.50%) Security Cleared
2 12 (15.00%) SC Cleared
3 7 (8.75%) Microsoft Certification
4 6 (7.50%) DV Cleared
4 6 (7.50%) MCSA
4 6 (7.50%) MCSE
4 6 (7.50%) RHCT
5 3 (3.75%) Degree
6 2 (2.50%) RHCE
7 1 (1.25%) CEH
7 1 (1.25%) CISSP
7 1 (1.25%) Computer Science Degree
7 1 (1.25%) Linux+ Certification
7 1 (1.25%) LPIC
Quality Assurance & Compliance
1 5 (6.25%) ISO/IEC 27001
1 5 (6.25%) QA
2 4 (5.00%) GDPR
2 4 (5.00%) HIPAA
2 4 (5.00%) NIST
3 3 (3.75%) NCSC
4 1 (1.25%) Cyber Essentials
System Software
1 20 (25.00%) Virtual Machines
2 14 (17.50%) Active Directory
3 13 (16.25%) VMware Infrastructure
4 12 (15.00%) Docker
5 8 (10.00%) KVM
6 6 (7.50%) Hyper-V
7 2 (2.50%) VMware ESXi
8 1 (1.25%) Firmware
8 1 (1.25%) VMware NSX
8 1 (1.25%) VMware Server
8 1 (1.25%) vSphere
8 1 (1.25%) Xen
Systems Management
1 40 (50.00%) Ansible
2 30 (37.50%) Prometheus
3 27 (33.75%) Grafana
4 21 (26.25%) Kibana
4 21 (26.25%) logstash
5 19 (23.75%) Kubernetes
5 19 (23.75%) Terraform
6 10 (12.50%) Puppet
7 8 (10.00%) ZABBIX
8 7 (8.75%) Packer
9 6 (7.50%) Nagios
10 4 (5.00%) Rancher
11 3 (3.75%) HAProxy
12 2 (2.50%) Consul
12 2 (2.50%) Docker Swarm
12 2 (2.50%) FortiGate
12 2 (2.50%) Graphite
12 2 (2.50%) linkerd
12 2 (2.50%) Progress Chef
12 2 (2.50%) vCenter Server
Vendors
1 37 (46.25%) Red Hat
2 21 (26.25%) VMware
3 16 (20.00%) Amdocs
4 9 (11.25%) Cisco
5 7 (8.75%) Citrix
5 7 (8.75%) Microsoft
6 4 (5.00%) Google
6 4 (5.00%) Splunk
7 2 (2.50%) PagerDuty
7 2 (2.50%) Palo Alto
8 1 (1.25%) McAfee
8 1 (1.25%) NetApp
8 1 (1.25%) Oracle
8 1 (1.25%) QinetiQ
8 1 (1.25%) Qualys
8 1 (1.25%) Remedy
8 1 (1.25%) ServiceNow
8 1 (1.25%) Sybase