Period
to

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Linux skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Linux over the 6 months to 20 May 2022 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Linux
Central London > City of London
6 months to
20 May 2022
Same period 2021 Same period 2020
Rank 37 50 31
Rank change year-on-year +13 -19 -10
Contract jobs citing Linux 229 129 194
As % of all contract jobs advertised in the City of London 5.41% 4.59% 6.05%
As % of the Operating Systems category 42.02% 36.24% 35.53%
Number of daily rates quoted 171 93 145
10th Percentile £425 £340 £362
25th Percentile £500 £433 £431
Median daily rate (50th Percentile) £585 £525 £525
Median % change year-on-year +11.43% - -6.67%
75th Percentile £675 £675 £600
90th Percentile £750 £700 £673
Central London median daily rate £585 £525 £525
% change year-on-year +11.43% - -4.55%
Number of hourly rates quoted 0 0 1
Median hourly rate - - £15.00
Central London median hourly rate £41.50 - £37.50

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

All Operating Systems
City of London
Contract vacancies with a requirement for operating system skills 545 356 546
As % of all contract IT jobs advertised in the City of London 12.87% 12.66% 17.02%
Number of daily rates quoted 419 270 417
10th Percentile £185 £213 £150
25th Percentile £353 £376 £288
Median daily rate (50th Percentile) £515 £489 £450
Median % change year-on-year +5.42% +8.56% -5.26%
75th Percentile £621 £593 £564
90th Percentile £700 £694 £638
Central London median daily rate £500 £489 £450
% change year-on-year +2.35% +8.56% -5.76%
Number of hourly rates quoted 13 3 12
10th Percentile - £13.68 £11.15
25th Percentile £13.88 £13.75 £13.63
Median hourly rate £24.50 £14.00 £16.48
Median % change year-on-year +75.00% -15.02% -21.55%
75th Percentile £35.00 £14.31 £18.90
90th Percentile £73.00 £14.50 £20.85
Central London median hourly rate £24.75 £14.00 £18.70
% change year-on-year +76.79% -25.13% -10.95%

Linux
Job Vacancy Trend in the City of London

Job postings citing Linux as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Linux in the City of London

Linux
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing Linux in the City of London.

Daily rate trend for Linux in the City of London

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 20 May 2022.

Daily rate histogram for Linux in the City of London

Linux
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing Linux in the City of London.

Hourly rate trend for Linux in the City of London

For the 6 months to 20 May 2022, IT contractor jobs citing Linux also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Linux.

1 102 (44.54%) AWS
2 94 (41.05%) DevOps
3 85 (37.12%) Python
4 81 (35.37%) Finance
5 79 (34.50%) Windows
6 62 (27.07%) Java
6 62 (27.07%) SQL
7 60 (26.20%) Terraform
8 59 (25.76%) Ansible
9 58 (25.33%) Docker
10 54 (23.58%) Red Hat Enterprise Linux
11 53 (23.14%) Azure
12 52 (22.71%) Unix
13 51 (22.27%) CI/CD
14 50 (21.83%) Social Skills
15 47 (20.52%) Git (software)
16 46 (20.09%) Agile
17 44 (19.21%) Jenkins
18 40 (17.47%) Bash
19 39 (17.03%) Oracle
19 39 (17.03%) Kubernetes
20 38 (16.59%) GitLab
21 35 (15.28%) Infrastructure as Code
22 33 (14.41%) Red Hat
23 27 (11.79%) Configuration Management
24 26 (11.35%) Puppet
24 26 (11.35%) JIRA
25 25 (10.92%) PowerShell
25 25 (10.92%) Security Cleared
25 25 (10.92%) Migration

Linux
Co-occurring IT Skills in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 17 (7.42%) Confluence
2 12 (5.24%) Apache
2 12 (5.24%) Tomcat
3 6 (2.62%) Apache Airflow
3 6 (2.62%) Apache Spark
4 5 (2.18%) JBoss
4 5 (2.18%) Luigi
4 5 (2.18%) nginx
5 4 (1.75%) CMS
5 4 (1.75%) OpenStack
6 3 (1.31%) IIS
7 2 (0.87%) Apache Pig
7 2 (0.87%) Apache Solr
7 2 (0.87%) Jetty
7 2 (0.87%) SharePoint
7 2 (0.87%) WebLogic
8 1 (0.44%) SAS
8 1 (0.44%) SharePoint Server
8 1 (0.44%) WebSphere
8 1 (0.44%) WebSphere Application Server
Applications
1 3 (1.31%) Microsoft Office
2 1 (0.44%) CATIA
2 1 (0.44%) Microsoft Excel
2 1 (0.44%) Spreadsheet
Business Applications
1 2 (0.87%) SAP S/4HANA
1 2 (0.87%) WebTrends
2 1 (0.44%) ION MarketView
2 1 (0.44%) Oracle Cash Management
2 1 (0.44%) Oracle Receivables
2 1 (0.44%) Siebel CRM
Cloud Services
1 102 (44.54%) AWS
2 53 (23.14%) Azure
3 23 (10.04%) Amazon EC2
4 21 (9.17%) GCP
5 13 (5.68%) Amazon EKS
5 13 (5.68%) AWS CloudFormation
6 12 (5.24%) Amazon S3
7 11 (4.80%) PaaS
7 11 (4.80%) Serverless
8 10 (4.37%) GitHub
9 9 (3.93%) AWS Lambda
10 8 (3.49%) Amazon CloudWatch
11 7 (3.06%) Amazon Cognito
11 7 (3.06%) IaaS
11 7 (3.06%) SaaS
11 7 (3.06%) Virtual Private Cloud
12 6 (2.62%) OpenShift
13 5 (2.18%) Amazon EMR
13 5 (2.18%) Amazon SQS
14 4 (1.75%) Amazon ECS
Communications & Networking
1 20 (8.73%) DNS
2 13 (5.68%) Internet
3 12 (5.24%) Firewall
4 10 (4.37%) SSH
5 9 (3.93%) Network Security
6 8 (3.49%) VPN
7 7 (3.06%) SD-WAN
7 7 (3.06%) SSL
7 7 (3.06%) WAN
8 6 (2.62%) DHCP
8 6 (2.62%) HTTP
8 6 (2.62%) TCP/IP
9 4 (1.75%) iSCSI
9 4 (1.75%) Kerberos
10 3 (1.31%) Intranet
10 3 (1.31%) IPv6
10 3 (1.31%) NGN
10 3 (1.31%) SAN
11 2 (0.87%) HTTPS
11 2 (0.87%) Wireless
Database & Business Intelligence
1 23 (10.04%) SQL Server
2 18 (7.86%) MySQL
2 18 (7.86%) PostgreSQL
3 15 (6.55%) Data Warehouse
4 14 (6.11%) Relational Database
5 13 (5.68%) Hadoop
6 12 (5.24%) Oracle Database
7 11 (4.80%) Big Data
8 9 (3.93%) NoSQL
8 9 (3.93%) SQL Server Integration Services
8 9 (3.93%) SQL Server Reporting Services
9 7 (3.06%) Amazon RDS
9 7 (3.06%) MongoDB
10 6 (2.62%) Apache Cassandra
11 5 (2.18%) Amazon Athena
11 5 (2.18%) Amazon Redshift
11 5 (2.18%) Oracle Database 12c
11 5 (2.18%) Presto
11 5 (2.18%) RDBMS
12 3 (1.31%) Oracle Database 11g
Development Applications
1 47 (20.52%) Git (software)
2 44 (19.21%) Jenkins
3 38 (16.59%) GitLab
4 26 (11.35%) JIRA
5 11 (4.80%) Bitbucket
6 8 (3.49%) Artifactory
7 7 (3.06%) Maven
8 6 (2.62%) SonarQube
8 6 (2.62%) TeamCity
9 5 (2.18%) Sonatype Nexus
10 4 (1.75%) Atlassian Bamboo
10 4 (1.75%) CircleCI
10 4 (1.75%) Gerrit
10 4 (1.75%) JUnit
11 3 (1.31%) git-flow
11 3 (1.31%) RSpec
11 3 (1.31%) Selenium
12 2 (0.87%) Gradle
12 2 (0.87%) Octopus Deploy
12 2 (0.87%) Postman
General
1 81 (35.37%) Finance
2 50 (21.83%) Social Skills
3 21 (9.17%) Analytical Skills
3 21 (9.17%) Banking
4 14 (6.11%) Financial Institution
5 13 (5.68%) Investment Banking
5 13 (5.68%) Legal
6 10 (4.37%) Front Office
7 6 (2.62%) Back Office
7 6 (2.62%) Influencing Skills
8 5 (2.18%) Retail
9 3 (1.31%) Advertising
9 3 (1.31%) International Banking
9 3 (1.31%) Presentation Skills
9 3 (1.31%) Public Sector
10 2 (0.87%) Documentation Skills
10 2 (0.87%) Publishing
11 1 (0.44%) Law
11 1 (0.44%) Organisational Skills
11 1 (0.44%) Telecoms
Job Titles
1 43 (18.78%) DevOps Engineer
2 37 (16.16%) Developer
3 19 (8.30%) Analyst
3 19 (8.30%) AWS Engineer
4 16 (6.99%) AWS DevOps
4 16 (6.99%) AWS DevOps Engineer
5 15 (6.55%) Architect
5 15 (6.55%) Java Developer
5 15 (6.55%) Support Analyst
6 14 (6.11%) Administrator
7 13 (5.68%) Applications Support
7 13 (5.68%) Applications Support Analyst
7 13 (5.68%) Consultant
8 11 (4.80%) Platform Engineer
8 11 (4.80%) Senior DevOps
9 10 (4.37%) Senior DevOps Engineer
10 9 (3.93%) Data Engineer
10 9 (3.93%) Linux Engineer
11 8 (3.49%) Cloud Engineer
11 8 (3.49%) Tester
Libraries, Frameworks & Software Standards
1 19 (8.30%) Elastic Stack
2 18 (7.86%) Kafka
3 14 (6.11%) REST
3 14 (6.11%) Spring
4 10 (4.37%) AngularJS
4 10 (4.37%) HTML
4 10 (4.37%) Middleware
5 9 (3.93%) LDAP
5 9 (3.93%) RESTful
5 9 (3.93%) Web Services
6 8 (3.49%) .NET
6 8 (3.49%) JSON
7 7 (3.06%) CSS
8 6 (2.62%) Node.js
8 6 (2.62%) OAuth
8 6 (2.62%) React
8 6 (2.62%) XML
9 5 (2.18%) JMS
9 5 (2.18%) SAML
9 5 (2.18%) Spring Boot
Miscellaneous
1 20 (8.73%) Linux Command Line
2 14 (6.11%) Data Centre
3 13 (5.68%) Derivative
4 12 (5.24%) Hedge funds
4 12 (5.24%) Public Cloud
5 10 (4.37%) Foreign Exchange (FX)
5 10 (4.37%) Replication
6 9 (3.93%) Equities
7 8 (3.49%) Management Information System
8 7 (3.06%) Cloud Native
8 7 (3.06%) Enterprise Software
8 7 (3.06%) PKI
9 6 (2.62%) Greenfield Project
10 4 (1.75%) Clustering
10 4 (1.75%) Self-Motivation
11 3 (1.31%) Algorithms
11 3 (1.31%) Fixed Income
11 3 (1.31%) Legacy Systems
11 3 (1.31%) Private Cloud
12 2 (0.87%) Cyberthreat
Operating Systems
1 79 (34.50%) Windows
2 54 (23.58%) Red Hat Enterprise Linux
3 52 (22.71%) Unix
4 17 (7.42%) Windows Server
5 13 (5.68%) CentOS
6 11 (4.80%) Ubuntu
7 7 (3.06%) Windows Server 2016
8 6 (2.62%) Solaris
8 6 (2.62%) Windows Server 2019
9 5 (2.18%) Oracle Linux
10 4 (1.75%) Debian
10 4 (1.75%) SUSE
10 4 (1.75%) Windows Server 2008
11 3 (1.31%) AIX
12 2 (0.87%) Android
12 2 (0.87%) HPUX
12 2 (0.87%) Scientific Linux
12 2 (0.87%) VMS
12 2 (0.87%) Windows Server 2012
13 1 (0.44%) Apple iOS
Processes & Methodologies
1 94 (41.05%) DevOps
2 51 (22.27%) CI/CD
3 46 (20.09%) Agile
4 35 (15.28%) Infrastructure as Code
5 27 (11.79%) Configuration Management
6 25 (10.92%) Migration
7 23 (10.04%) Problem-Solving
7 23 (10.04%) Test Automation
8 16 (6.99%) Analytics
8 16 (6.99%) Computer Science
8 16 (6.99%) Continuous Integration
9 15 (6.55%) ITIL
10 14 (6.11%) Data Protection
10 14 (6.11%) Infrastructure Engineering
10 14 (6.11%) Scrum
11 13 (5.68%) Platform Engineering
11 13 (5.68%) Software Engineering
12 12 (5.24%) ETL
13 11 (4.80%) SDLC
14 10 (4.37%) Disaster Recovery
Programming Languages
1 85 (37.12%) Python
2 62 (27.07%) Java
2 62 (27.07%) SQL
3 40 (17.47%) Bash
4 25 (10.92%) PowerShell
5 24 (10.48%) Shell Script
6 19 (8.30%) JavaScript
7 17 (7.42%) Ruby
8 16 (6.99%) Go
8 16 (6.99%) Perl
9 13 (5.68%) C#
10 9 (3.93%) C++
11 8 (3.49%) Groovy
11 8 (3.49%) Scala
12 6 (2.62%) PL/SQL
13 4 (1.75%) C
14 3 (1.31%) TypeScript
15 1 (0.44%) Korn
15 1 (0.44%) PHP
Qualifications
1 25 (10.92%) Security Cleared
2 23 (10.04%) SC Cleared
3 14 (6.11%) Degree
4 6 (2.62%) Computer Science Degree
5 5 (2.18%) BPSS Clearance
5 5 (2.18%) CCNA
5 5 (2.18%) Cisco Certification
6 4 (1.75%) CCNP
7 3 (1.31%) TOGAF Certification
8 2 (0.87%) CISSP
8 2 (0.87%) DV Cleared
8 2 (0.87%) Microsoft Certification
8 2 (0.87%) OSCP
9 1 (0.44%) GPEN
9 1 (0.44%) JNCIS
9 1 (0.44%) OCP
9 1 (0.44%) Oracle Certification
9 1 (0.44%) OSCE
9 1 (0.44%) OSWP
9 1 (0.44%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 14 (6.11%) GDPR
2 8 (3.49%) QA
3 2 (0.87%) Accessibility
3 2 (0.87%) Sarbanes-Oxley
3 2 (0.87%) SLA
4 1 (0.44%) COBIT
4 1 (0.44%) COSO
4 1 (0.44%) Data Quality
4 1 (0.44%) HIPAA
4 1 (0.44%) ISO 20022
4 1 (0.44%) ISO/IEC 27001
4 1 (0.44%) NCSC
4 1 (0.44%) NIST
4 1 (0.44%) SOC 2
System Software
1 58 (25.33%) Docker
2 16 (6.99%) Active Directory
3 14 (6.11%) VMware Infrastructure
4 10 (4.37%) Virtual Machines
5 6 (2.62%) Hyper-V
5 6 (2.62%) VMware ESXi
6 3 (1.31%) Apache ZooKeeper
6 3 (1.31%) NFS
6 3 (1.31%) Oracle RAC
7 2 (0.87%) VMware NSX
7 2 (0.87%) vSphere
8 1 (0.44%) Firmware
8 1 (0.44%) Shibboleth
8 1 (0.44%) vCloud
8 1 (0.44%) Veritas File System
8 1 (0.44%) Veritas Volume Manager
Systems Management
1 60 (26.20%) Terraform
2 59 (25.76%) Ansible
3 39 (17.03%) Kubernetes
4 26 (11.35%) Puppet
5 15 (6.55%) Packer
6 14 (6.11%) Opscode Chef
7 9 (3.93%) Consul
7 9 (3.93%) Icinga
8 8 (3.49%) Grafana
9 6 (2.62%) BladeLogic
9 6 (2.62%) Prometheus
9 6 (2.62%) Red Hat Satellite
10 5 (2.18%) Salt
11 4 (1.75%) Data Guard
11 4 (1.75%) Tivoli Storage Manager
12 3 (1.31%) Control-M
12 3 (1.31%) HAProxy
12 3 (1.31%) NetBackup
12 3 (1.31%) Single Sign-On
12 3 (1.31%) vCenter Server
Vendors
1 39 (17.03%) Oracle
2 33 (14.41%) Red Hat
3 25 (10.92%) Microsoft
4 22 (9.61%) VMware
5 15 (6.55%) IBM
6 12 (5.24%) Splunk
7 10 (4.37%) Cisco
8 9 (3.93%) Google
9 8 (3.49%) BMC
10 7 (3.06%) Atlassian
11 6 (2.62%) Sybase
12 5 (2.18%) Juniper
12 5 (2.18%) NetApp
12 5 (2.18%) Palo Alto
12 5 (2.18%) Veeam
13 4 (1.75%) CyberArk
13 4 (1.75%) Dell
13 4 (1.75%) ServiceNow
14 3 (1.31%) CheckPoint
14 3 (1.31%) Refinitiv