Linux Contract Job Trends in the City of London

Linux
Central London > City of London

The table below provides summary statistics and contractor rates for jobs advertised in the City of London requiring Linux skills. It covers contract job vacancies from the 6 months leading up to 27 December 2025, with comparisons to the same periods in the previous two years.

6 months to
27 Dec 2025
Same period 2024 Same period 2023
Rank 66 34 29
Rank change year-on-year -32 -5 +1
Contract jobs citing Linux 60 108 158
As % of all contract jobs in the City of London 3.25% 5.29% 6.33%
As % of the Operating Systems category 35.93% 42.52% 46.06%
Number of daily rates quoted 50 61 115
10th Percentile £412 £413 £368
25th Percentile £513 £500 £450
Median daily rate (50th Percentile) £625 £625 £540
Median % change year-on-year - +15.74% -14.01%
75th Percentile £719 £696 £675
90th Percentile £776 £750 £745
Central London median daily rate £625 £619 £540
% change year-on-year +1.01% +14.58% -13.74%
Number of hourly rates quoted 1 2 0
10th Percentile - - -
25th Percentile £26.25 - -
Median hourly rate £27.50 £112.00 -
Median % change year-on-year -75.45% - -
75th Percentile £28.75 - -
90th Percentile - - -
Central London median hourly rate £27.50 £112.00 -
% change year-on-year -75.45% - -

All Operating Systems
City of London

Linux 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 in the City of London.

Contract vacancies with a requirement for operating system skills 167 254 343
As % of all contract IT jobs advertised in the City of London 9.04% 12.43% 13.73%
Number of daily rates quoted 130 169 248
10th Percentile £200 £252 £206
25th Percentile £325 £363 £350
Median daily rate (50th Percentile) £531 £510 £493
Median % change year-on-year +4.17% +3.55% -8.37%
75th Percentile £682 £625 £616
90th Percentile £775 £710 £700
Central London median daily rate £525 £500 £475
% change year-on-year +5.00% +5.26% -9.52%
Number of hourly rates quoted 3 2 1
10th Percentile £21.91 - -
25th Percentile £23.54 - -
Median hourly rate £27.50 £112.00 £18.93
Median % change year-on-year -75.45% +491.65% -7.66%
75th Percentile £29.13 - -
90th Percentile £29.35 - -
Central London median hourly rate £24.88 £112.00 £18.93
% change year-on-year -77.78% +491.65% -7.66%

Linux
Job Vacancy Trend in the City of London

Historical trend showing the proportion of contract IT job postings citing Linux relative to all contract IT jobs advertised in the City of London.

Linux job vacancy trend in the City of London

Linux
Daily Rate Trend in the City of London

Contractor daily rate distribution trend for jobs in the City of London citing Linux.

Contractor daily rate distribution trend for jobs in the City of London citing Linux

Linux
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Linux in the City of London over the 6 months to 27 December 2025.

Daily rate histogram for Linux in the City of London

Linux
Hourly Rate Trend in the City of London

Contractor hourly rate distribution trend for jobs in the City of London citing Linux.

Contractor hourly rate distribution trend for jobs in the City of London citing Linux

Linux
Co-Occurring Skills & Capabilities in the City of London 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 1 (1.67%) CICS
1 1 (1.67%) Confluence
1 1 (1.67%) JBoss
1 1 (1.67%) Oracle Workflow
1 1 (1.67%) SharePoint
Applications
1 1 (1.67%) Microsoft Excel
1 1 (1.67%) Microsoft Project
Business Applications
1 2 (3.33%) Oracle Procure-to-Pay
2 1 (1.67%) Temenos T24
Cloud Services
1 14 (23.33%) AWS
2 13 (21.67%) Azure
3 6 (10.00%) GitHub
4 4 (6.67%) AWS Lambda
4 4 (6.67%) Azure DevOps
4 4 (6.67%) GCP
4 4 (6.67%) SaaS
4 4 (6.67%) Serverless
5 3 (5.00%) IaaS
5 3 (5.00%) Microsoft 365
5 3 (5.00%) PaaS
6 2 (3.33%) Amazon CloudWatch
6 2 (3.33%) Amazon ECS
6 2 (3.33%) AWS CodePipeline
6 2 (3.33%) Cloud Computing
6 2 (3.33%) GitHub Actions
6 2 (3.33%) OCI
6 2 (3.33%) OpenShift
7 1 (1.67%) Amazon EC2
7 1 (1.67%) Amazon S3
Communications & Networking
1 8 (13.33%) Firewall
2 5 (8.33%) SSL
3 3 (5.00%) DNS
3 3 (5.00%) TCP/IP
4 2 (3.33%) HTTP
4 2 (3.33%) HTTPS
4 2 (3.33%) Network Security
4 2 (3.33%) SAN
4 2 (3.33%) VPN
5 1 (1.67%) BGP
5 1 (1.67%) DHCP
5 1 (1.67%) Fibre Channel
5 1 (1.67%) LAN
5 1 (1.67%) Multicast
5 1 (1.67%) NAS
5 1 (1.67%) OSPF
5 1 (1.67%) tcpdump
5 1 (1.67%) WAN
5 1 (1.67%) Wi-Fi
5 1 (1.67%) Wireshark
Database & Business Intelligence
1 8 (13.33%) SQL Server
2 4 (6.67%) KDB
2 4 (6.67%) PostgreSQL
2 4 (6.67%) Relational Database
3 3 (5.00%) Elasticsearch
3 3 (5.00%) Kdb+
3 3 (5.00%) Oracle Database
4 1 (1.67%) Amazon RDS
4 1 (1.67%) Azure SQL Database
4 1 (1.67%) BigQuery
4 1 (1.67%) Data Hub
4 1 (1.67%) Data Warehouse
4 1 (1.67%) MySQL
4 1 (1.67%) NoSQL
4 1 (1.67%) Tick Data
Development Applications
1 9 (15.00%) Jenkins
2 5 (8.33%) Git
3 2 (3.33%) Artifactory
3 2 (3.33%) GitLab
3 2 (3.33%) JIRA
3 2 (3.33%) JUnit
3 2 (3.33%) Maven
3 2 (3.33%) QUnit
3 2 (3.33%) Robot Framework
4 1 (1.67%) Burp Suite
4 1 (1.67%) Cypress.io
4 1 (1.67%) Gatling
4 1 (1.67%) jMock
4 1 (1.67%) Metasploit
4 1 (1.67%) Mockito
4 1 (1.67%) Postman
4 1 (1.67%) Selenium
4 1 (1.67%) Serenity BDD
4 1 (1.67%) SonarQube
4 1 (1.67%) Sonatype Nexus
General
1 23 (38.33%) Social Skills
2 22 (36.67%) Finance
3 12 (20.00%) Banking
4 7 (11.67%) Financial Institution
5 6 (10.00%) Analytical Skills
6 4 (6.67%) Investment Banking
7 3 (5.00%) Front Office
7 3 (5.00%) International Banking
7 3 (5.00%) Public Sector
8 2 (3.33%) Documentation Skills
9 1 (1.67%) Law
9 1 (1.67%) Military
Job Titles
1 15 (25.00%) Developer
2 8 (13.33%) Senior
3 5 (8.33%) Senior Developer
4 4 (6.67%) Architect
4 4 (6.67%) Java Developer
4 4 (6.67%) Python Engineer
5 3 (5.00%) Backup Engineer
5 3 (5.00%) Lead
5 3 (5.00%) Linux Engineer
5 3 (5.00%) Network Engineer
5 3 (5.00%) Security Engineer
5 3 (5.00%) Software Engineer
6 2 (3.33%) Analyst
6 2 (3.33%) C++ Developer
6 2 (3.33%) C++ Software Engineer
6 2 (3.33%) Infrastructure Engineer
6 2 (3.33%) Lead Architect
6 2 (3.33%) Platform Engineer
6 2 (3.33%) Service Manager
6 2 (3.33%) Solutions Architect
Libraries, Frameworks & Software Standards
1 6 (10.00%) REST
2 4 (6.67%) JSON
3 3 (5.00%) .NET
3 3 (5.00%) Elastic Stack
3 3 (5.00%) FIX Protocol
3 3 (5.00%) Middleware
3 3 (5.00%) RESTful
3 3 (5.00%) SOAP
3 3 (5.00%) XML
4 2 (3.33%) Kafka
4 2 (3.33%) Loki
4 2 (3.33%) OAuth
4 2 (3.33%) Spring
5 1 (1.67%) CSS
5 1 (1.67%) Django
5 1 (1.67%) jQuery
5 1 (1.67%) JSP
5 1 (1.67%) SAML
5 1 (1.67%) XSD
5 1 (1.67%) YAML
Miscellaneous
1 7 (11.67%) Fixed Income
2 6 (10.00%) Cloud Native
2 6 (10.00%) Foreign Exchange (FX)
3 5 (8.33%) Onboarding
4 3 (5.00%) Algorithms
4 3 (5.00%) Data Centre
4 3 (5.00%) Replication
5 2 (3.33%) Derivative
5 2 (3.33%) Distributed Systems
5 2 (3.33%) Fat Client
5 2 (3.33%) Linux Command Line
5 2 (3.33%) Private Cloud
5 2 (3.33%) Thin Client
6 1 (1.67%) Cyber Kill Chain
6 1 (1.67%) Data Structures
6 1 (1.67%) Enterprise Software
6 1 (1.67%) Equities
6 1 (1.67%) NHS
6 1 (1.67%) PKI
6 1 (1.67%) VSAM
Operating Systems
1 19 (31.67%) Windows
2 14 (23.33%) Unix
3 9 (15.00%) Red Hat Enterprise Linux
4 8 (13.33%) Windows Server
5 2 (3.33%) Solaris
6 1 (1.67%) AIX
6 1 (1.67%) Kali Linux
Processes & Methodologies
1 19 (31.67%) DevOps
2 13 (21.67%) CI/CD
2 13 (21.67%) Low Latency
3 10 (16.67%) Infrastructure as Code
4 9 (15.00%) Electronic Trading
5 8 (13.33%) Test Automation
6 7 (11.67%) Containerisation
6 7 (11.67%) Observability
6 7 (11.67%) Risk Management
6 7 (11.67%) Software Engineering
6 7 (11.67%) TDD
7 6 (10.00%) Agile
7 6 (10.00%) Migration
7 6 (10.00%) Problem-Solving
8 5 (8.33%) Algorithmic Trading
8 5 (8.33%) High Availability
8 5 (8.33%) ITIL
8 5 (8.33%) Roadmaps
8 5 (8.33%) SIEM
8 5 (8.33%) Stakeholder Engagement
Programming Languages
1 25 (41.67%) Python
2 14 (23.33%) SQL
3 10 (16.67%) Java
3 10 (16.67%) PowerShell
4 7 (11.67%) Bash
5 4 (6.67%) Perl
5 4 (6.67%) Shell Script
6 3 (5.00%) C++
7 2 (3.33%) C#
8 1 (1.67%) COBOL
8 1 (1.67%) Fortran
8 1 (1.67%) Go
8 1 (1.67%) JavaScript
8 1 (1.67%) Kusto Query Language
8 1 (1.67%) MATLAB
8 1 (1.67%) PL/SQL
8 1 (1.67%) PromQL
8 1 (1.67%) R
8 1 (1.67%) Ruby
Qualifications
1 16 (26.67%) SC Cleared
1 16 (26.67%) Security Cleared
2 5 (8.33%) Degree
3 2 (3.33%) Azure Certification
3 2 (3.33%) BPSS Clearance
3 2 (3.33%) CESG Certified Professional
3 2 (3.33%) Computer Science Degree
3 2 (3.33%) ITIL Certification
3 2 (3.33%) MCITP
3 2 (3.33%) Microsoft Certification
3 2 (3.33%) Postgraduate
4 1 (1.67%) (ISC)2 CCSP
4 1 (1.67%) Cisco Certification
4 1 (1.67%) CISSP
4 1 (1.67%) CompTIA Security+
4 1 (1.67%) GCFA
4 1 (1.67%) GCIA
4 1 (1.67%) GCIH
4 1 (1.67%) RHCE
4 1 (1.67%) RHCSA
Quality Assurance & Compliance
1 6 (10.00%) ISO/IEC 27001
2 3 (5.00%) NIST
3 2 (3.33%) GDPR
3 2 (3.33%) NIST 800
3 2 (3.33%) SLA
4 1 (1.67%) Cyber Essentials
System Software
1 11 (18.33%) Docker
2 5 (8.33%) Active Directory
3 1 (1.67%) Firmware
3 1 (1.67%) GridGain
3 1 (1.67%) Hyper-V
3 1 (1.67%) VMware Infrastructure
Systems Management
1 13 (21.67%) Ansible
2 11 (18.33%) Kubernetes
3 8 (13.33%) Terraform
4 6 (10.00%) ITRS Geneos
5 4 (6.67%) Microsoft Intune
6 3 (5.00%) Grafana
6 3 (5.00%) Kibana
6 3 (5.00%) logstash
6 3 (5.00%) NetBackup
6 3 (5.00%) Tivoli Storage Manager
7 2 (3.33%) Argo
7 2 (3.33%) Kustomize
7 2 (3.33%) Podman
7 2 (3.33%) Prometheus
7 2 (3.33%) SCOM
8 1 (1.67%) Rundeck
8 1 (1.67%) Single Sign-On
8 1 (1.67%) ZABBIX
Vendors
1 11 (18.33%) Oracle
2 7 (11.67%) Microsoft
3 6 (10.00%) Splunk
4 5 (8.33%) Red Hat
5 4 (6.67%) IBM
5 4 (6.67%) Solace
5 4 (6.67%) Veeam
6 2 (3.33%) AppDynamics
6 2 (3.33%) Axway
6 2 (3.33%) Bloomberg
6 2 (3.33%) Cisco
6 2 (3.33%) CyberArk
6 2 (3.33%) F5
6 2 (3.33%) HP
6 2 (3.33%) MarketAxess
6 2 (3.33%) Tenable
6 2 (3.33%) Tradeweb
6 2 (3.33%) VMware
7 1 (1.67%) Google
7 1 (1.67%) ION Trading