Period
to 23 January 2020

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 23 January 2020 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
23 Jan 2020
Same period 2019 Same period 2018
Rank 28 21 19
Rank change year-on-year -7 -2 -7
Contract jobs citing Linux 292 503 588
As % of all contract IT jobs advertised in the City of London 5.90% 7.36% 8.25%
As % of the Operating Systems category 34.11% 37.34% 40.66%
Number of daily rates quoted 223 374 500
City of London median daily rate £538 £550 £525
Median daily rate % change year-on-year -2.27% +4.76% +5.00%
10th Percentile £320 £413 £400
90th Percentile £685 £675 £763
Central London median daily rate £525 £550 £525
% change year-on-year -4.55% +4.76% +5.00%
Number of hourly rates quoted 1 2 0
City of London median hourly rate £15.00 £28.75 -
Median hourly rate % change year-on-year -47.83% - -
Central London median hourly rate £22.50 £36.25 £35.00
% change year-on-year -37.93% +3.57% +27.27%

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 856 1,347 1,446
As % of all contract IT jobs advertised in the City of London 17.30% 19.72% 20.28%
Number of daily rates quoted 650 1,016 1,144
City of London median daily rate £450 £475 £493
Median daily rate % change year-on-year -5.26% -3.55% +8.78%
10th Percentile £150 £145 £248
90th Percentile £638 £638 £675
Central London median daily rate £428 £475 £475
% change year-on-year -10.00% - +5.56%
Number of hourly rates quoted 29 49 53
City of London median hourly rate £16.95 £18.70 £15.00
Median hourly rate % change year-on-year -9.36% +24.67% -31.03%
10th Percentile £12.41 £13.80 £11.25
90th Percentile £36.30 £25.50 £25.35
Central London median hourly rate £18.70 £18.70 £17.00
% change year-on-year - +10.00% -9.81%

Linux
Job Vacancy Trend in the City of London

Job postings citing Linux as a percentage 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

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Linux in the City of London.

Contractor daily rate trend for Linux in the City of London

Linux
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Linux in the City of London over the 6 months to 23 January 2020.

Contractor daily rate histogram for Linux in the City of London

Linux
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Linux in the City of London.

Contractor hourly rate trend for Linux in the City of London

For the 6 months to 23 January 2020, 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.

1 115 (39.38%) DevOps
2 102 (34.93%) Python
3 90 (30.82%) Agile Software Development
4 88 (30.14%) AWS
5 76 (26.03%) Java
6 75 (25.68%) Docker
7 73 (25.00%) Windows
8 68 (23.29%) Kubernetes
9 67 (22.95%) Git (software)
10 66 (22.60%) Unix
11 65 (22.26%) Terraform
12 61 (20.89%) Finance
13 60 (20.55%) Jenkins
14 49 (16.78%) Ansible
15 47 (16.10%) Azure
16 46 (15.75%) Ruby
16 46 (15.75%) SQL
17 44 (15.07%) Security Cleared
18 42 (14.38%) Continuous Integration
18 42 (14.38%) Web Services
18 42 (14.38%) Microservices
18 42 (14.38%) Bash Shell
18 42 (14.38%) Puppet
19 38 (13.01%) JavaScript
20 37 (12.67%) Infrastructure as Code
21 33 (11.30%) Oracle
21 33 (11.30%) Microsoft
21 33 (11.30%) Red Hat
21 33 (11.30%) JIRA
22 32 (10.96%) Configuration Management

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 19 (6.51%) Elasticsearch
2 18 (6.16%) Confluence
3 8 (2.74%) Apache
3 8 (2.74%) nginx
4 6 (2.05%) OpenStack
4 6 (2.05%) Tomcat
5 5 (1.71%) Apache Spark
6 4 (1.37%) WebLogic
7 3 (1.03%) Cloud Foundry
7 3 (1.03%) Drupal
7 3 (1.03%) Jupyter
7 3 (1.03%) Oracle Coherence
7 3 (1.03%) Oracle SOA Suite
7 3 (1.03%) SharePoint
8 2 (0.68%) Apache Solr
8 2 (0.68%) DataSynapse
8 2 (0.68%) FileNet
8 2 (0.68%) IIS
8 2 (0.68%) JBoss
8 2 (0.68%) WebSphere
Applications
1 5 (1.71%) Microsoft Office
2 2 (0.68%) MS Visio
3 1 (0.34%) Houdini
3 1 (0.34%) Maya
3 1 (0.34%) Microsoft Project
Business Applications
1 3 (1.03%) Oracle Assets
1 3 (1.03%) Oracle Cash Management
1 3 (1.03%) Oracle FAH
1 3 (1.03%) Oracle General Ledger
1 3 (1.03%) Oracle Internet Expenses
1 3 (1.03%) Oracle iProcurement
1 3 (1.03%) Oracle Payables
1 3 (1.03%) Oracle Procure-to-Pay
1 3 (1.03%) Oracle Receivables
1 3 (1.03%) Oracle Subledger Accounting
1 3 (1.03%) Temenos T24
2 2 (0.68%) Magento
3 1 (0.34%) Dynamics CRM
3 1 (0.34%) FINCAD Analytics
3 1 (0.34%) ION MarketView
3 1 (0.34%) Oracle Financials
3 1 (0.34%) Oracle Retail
3 1 (0.34%) PeopleSoft Financials
3 1 (0.34%) Salesforce.com CRM
3 1 (0.34%) SAP GRC
Cloud Services
1 88 (30.14%) AWS
2 47 (16.10%) Azure
3 32 (10.96%) GCP
4 15 (5.14%) Amazon EC2
5 14 (4.79%) GitHub
6 10 (3.42%) OpenShift
6 10 (3.42%) Serverless
7 9 (3.08%) Amazon S3
7 9 (3.08%) AWS Lambda
8 8 (2.74%) Amazon SQS
8 8 (2.74%) Office 365
9 7 (2.40%) AWS CloudFormation
9 7 (2.40%) Virtual Private Cloud
10 6 (2.05%) Datadog
10 6 (2.05%) PaaS
11 5 (1.71%) AWS CodePipeline
11 5 (1.71%) Google Compute Engine
11 5 (1.71%) IaaS
11 5 (1.71%) Route 53
12 4 (1.37%) Amazon Glacier
Communications & Networking
1 28 (9.59%) TCP/IP
2 19 (6.51%) HTTP
3 17 (5.82%) DNS
4 13 (4.45%) Internet
4 13 (4.45%) SSL
5 12 (4.11%) Firewall
5 12 (4.11%) FTP
6 11 (3.77%) VPN
7 10 (3.42%) Ethernet
8 8 (2.74%) Network Security
9 7 (2.40%) DHCP
9 7 (2.40%) Intrusion Detection
9 7 (2.40%) WAN
9 7 (2.40%) Wi-Fi
10 6 (2.05%) LAN
11 5 (1.71%) Remote Desktop
12 3 (1.03%) VoIP
13 2 (0.68%) IPv4
13 2 (0.68%) IPv6
13 2 (0.68%) SNMP
Database & Business Intelligence
1 29 (9.93%) MongoDB
2 24 (8.22%) MySQL
3 19 (6.51%) PostgreSQL
4 13 (4.45%) SQL Server
5 11 (3.77%) Amazon RDS
5 11 (3.77%) NoSQL
5 11 (3.77%) Oracle Database
6 8 (2.74%) Big Data
7 7 (2.40%) Relational Database
8 6 (2.05%) Oracle Reports
9 5 (1.71%) Hadoop
10 4 (1.37%) DB2
10 4 (1.37%) Redis
11 3 (1.03%) Amazon Aurora
11 3 (1.03%) Amazon DynamoDB
11 3 (1.03%) Apache Cassandra
11 3 (1.03%) Data Warehouse
11 3 (1.03%) InfluxDB
11 3 (1.03%) Oracle BI Publisher
11 3 (1.03%) Oracle ODI
Development Applications
1 67 (22.95%) Git (software)
2 60 (20.55%) Jenkins
3 33 (11.30%) JIRA
4 16 (5.48%) Maven
5 15 (5.14%) GitLab
5 15 (5.14%) TeamCity
6 12 (4.11%) Gradle
7 10 (3.42%) Atlassian Bamboo
7 10 (3.42%) Subversion
8 9 (3.08%) Gatling
8 9 (3.08%) Geb
8 9 (3.08%) Sonatype Nexus
8 9 (3.08%) Spock
9 6 (2.05%) Bitbucket
9 6 (2.05%) gulp
9 6 (2.05%) JUnit
10 5 (1.71%) CircleCI
11 4 (1.37%) Artifactory
11 4 (1.37%) Mockito
11 4 (1.37%) Travis CI
General
1 61 (20.89%) Finance
2 26 (8.90%) Banking
3 16 (5.48%) Public Sector
4 10 (3.42%) Front Office
5 7 (2.40%) Investment Banking
6 6 (2.05%) Financial Institution
7 5 (1.71%) Law
8 3 (1.03%) Advertising
8 3 (1.03%) International Banking
8 3 (1.03%) Marketing
8 3 (1.03%) Telecoms
9 1 (0.34%) Arabic Language
9 1 (0.34%) Corporate Banking
9 1 (0.34%) Electronics
9 1 (0.34%) French Language
9 1 (0.34%) German Language
9 1 (0.34%) Legal
9 1 (0.34%) Retail
Job Titles
1 76 (26.03%) DevOps Engineer
2 74 (25.34%) Developer
3 27 (9.25%) Java Developer
4 24 (8.22%) AWS Engineer
5 23 (7.88%) AWS DevOps
6 21 (7.19%) AWS DevOps Engineer
7 14 (4.79%) Analyst
7 14 (4.79%) Cloud Engineer
8 11 (3.77%) Network Engineer
9 10 (3.42%) Architect
9 10 (3.42%) Consultant
9 10 (3.42%) Penetration Tester
9 10 (3.42%) Support Engineer
10 9 (3.08%) Agile Developer
10 9 (3.08%) Linux Engineer
10 9 (3.08%) Linux/Unix DevOps
11 8 (2.74%) Data Centre Technician
11 8 (2.74%) Data Technician
11 8 (2.74%) Security Engineer
11 8 (2.74%) Support Analyst
Libraries, Frameworks & Software Standards
1 42 (14.38%) Web Services
2 30 (10.27%) REST
3 25 (8.56%) Kafka
4 24 (8.22%) AngularJS
5 22 (7.53%) Spring
6 21 (7.19%) HTML
7 19 (6.51%) .NET
8 18 (6.16%) SOAP
9 17 (5.82%) Node.js
10 15 (5.14%) CSS
10 15 (5.14%) JSON
10 15 (5.14%) RESTful
11 14 (4.79%) Spring Boot
12 12 (4.11%) OAuth
13 11 (3.77%) Dropwizard
13 11 (3.77%) XML
14 10 (3.42%) Guice
14 10 (3.42%) HTML5
14 10 (3.42%) OAuth2
14 10 (3.42%) Ratpack
Miscellaneous
1 16 (5.48%) Data Centre
2 11 (3.77%) Virtual Team
3 9 (3.08%) Derivative
3 9 (3.08%) Greenfield Project
4 8 (2.74%) Fibre Optics
4 8 (2.74%) Management Information System
5 7 (2.40%) Analytical Skills
5 7 (2.40%) Public Cloud
6 5 (1.71%) Cloud Native
6 5 (1.71%) Security Operations Centre
7 4 (1.37%) Equities
7 4 (1.37%) Fixed Income
7 4 (1.37%) Linux Command Line
7 4 (1.37%) SWIFT
8 3 (1.03%) Cyberthreat
8 3 (1.03%) Data Structures
8 3 (1.03%) Interest Rate Derivative
8 3 (1.03%) Mobile App
9 2 (0.68%) Enterprise Cloud
9 2 (0.68%) Hybrid Cloud
Operating Systems
1 73 (25.00%) Windows
2 66 (22.60%) Unix
3 29 (9.93%) Red Hat Enterprise Linux
4 17 (5.82%) Ubuntu
5 11 (3.77%) CentOS
5 11 (3.77%) Windows Server
6 8 (2.74%) Windows Server 2012
7 7 (2.40%) Mac OS X
8 6 (2.05%) Debian
8 6 (2.05%) Windows 10
8 6 (2.05%) Windows Server 2008
9 5 (1.71%) Mac OS
9 5 (1.71%) Solaris
10 4 (1.37%) Android
11 2 (0.68%) Windows 7
12 1 (0.34%) AIX
12 1 (0.34%) Apple iOS
12 1 (0.34%) CoreOS
12 1 (0.34%) Kali Linux
12 1 (0.34%) zOS
Processes & Methodologies
1 115 (39.38%) DevOps
2 90 (30.82%) Agile Software Development
3 42 (14.38%) Continuous Integration
3 42 (14.38%) Microservices
4 37 (12.67%) Infrastructure as Code
5 32 (10.96%) Configuration Management
6 29 (9.93%) TDD
7 22 (7.53%) Software Engineering
8 21 (7.19%) Migration
8 21 (7.19%) Open Source
9 18 (6.16%) Security Testing
9 18 (6.16%) Test Automation
10 17 (5.82%) BDD
10 17 (5.82%) Continuous Delivery
10 17 (5.82%) ITIL
11 16 (5.48%) Problem-Solving
12 15 (5.14%) OWASP
13 13 (4.45%) Analytics
14 12 (4.11%) Penetration Testing
14 12 (4.11%) SDLC
Programming Languages
1 102 (34.93%) Python
2 76 (26.03%) Java
3 46 (15.75%) Ruby
3 46 (15.75%) SQL
4 42 (14.38%) Bash Shell
5 38 (13.01%) JavaScript
6 19 (6.51%) Java 8
6 19 (6.51%) PowerShell
7 18 (6.16%) Shell Script
8 17 (5.82%) PHP
9 15 (5.14%) PL/SQL
10 14 (4.79%) TypeScript
11 13 (4.45%) Go
11 13 (4.45%) Perl
12 11 (3.77%) C#
12 11 (3.77%) C++
12 11 (3.77%) Groovy
13 6 (2.05%) Scala
14 5 (1.71%) C
15 3 (1.03%) VBScript
Qualifications
1 44 (15.07%) Security Cleared
2 26 (8.90%) SC Cleared
3 7 (2.40%) DV Cleared
4 6 (2.05%) Degree
5 5 (1.71%) AWS Certification
6 4 (1.37%) Microsoft Certification
6 4 (1.37%) RHCE
7 3 (1.03%) CHECK Team Member
7 3 (1.03%) Cisco Certification
8 2 (0.68%) CCIE
8 2 (0.68%) CCNA
8 2 (0.68%) CISM
8 2 (0.68%) CISSP
8 2 (0.68%) Computer Science Degree
8 2 (0.68%) Master's Degree
8 2 (0.68%) MCSE
9 1 (0.34%) CCNP
9 1 (0.34%) CISA
9 1 (0.34%) MCSA
9 1 (0.34%) Network+ Certification
Quality Assurance & Compliance
1 6 (2.05%) NIST
2 5 (1.71%) ISO/IEC 27001
2 5 (1.71%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
3 4 (1.37%) QA
3 4 (1.37%) SLA
4 3 (1.03%) PCI DSS
5 1 (0.34%) Data Quality
5 1 (0.34%) GDPR
5 1 (0.34%) ISO/IEC 20000
5 1 (0.34%) NCSC
5 1 (0.34%) PMO
System Software
1 75 (25.68%) Docker
2 18 (6.16%) Active Directory
3 10 (3.42%) VMware Infrastructure
4 4 (1.37%) Apache ZooKeeper
4 4 (1.37%) Virtual Machines
4 4 (1.37%) VMware ESXi
5 3 (1.03%) Hyper-V
5 3 (1.03%) Oracle RAC
6 2 (0.68%) Firmware
6 2 (0.68%) KVM
6 2 (0.68%) Varnish
6 2 (0.68%) vSphere
6 2 (0.68%) Xen
7 1 (0.34%) etcd
7 1 (0.34%) Microsoft Virtual Server
7 1 (0.34%) StorNext
7 1 (0.34%) Virtual Desktop
7 1 (0.34%) Virtual Servers
7 1 (0.34%) VMware NSX
Systems Management
1 68 (23.29%) Kubernetes
2 65 (22.26%) Terraform
3 49 (16.78%) Ansible
4 42 (14.38%) Puppet
5 22 (7.53%) Opscode Chef
6 12 (4.11%) Packer
7 10 (3.42%) Docker Swarm
8 7 (2.40%) Consul
8 7 (2.40%) Prometheus
9 6 (2.05%) Suricata
10 5 (1.71%) Grafana
10 5 (1.71%) Istio
11 4 (1.37%) Kibana
11 4 (1.37%) SCCM
12 3 (1.03%) logstash
12 3 (1.03%) SELinux
12 3 (1.03%) ZABBIX
13 2 (0.68%) FortiGate
13 2 (0.68%) Host Intrusion Detection System
13 2 (0.68%) Single Sign-On
Vendors
1 33 (11.30%) Microsoft
1 33 (11.30%) Oracle
1 33 (11.30%) Red Hat
2 20 (6.85%) Google
3 18 (6.16%) Splunk
3 18 (6.16%) VMware
4 7 (2.40%) Qualys
5 6 (2.05%) Cisco
5 6 (2.05%) ServiceNow
6 5 (1.71%) F5
6 5 (1.71%) Fortinet
6 5 (1.71%) HP
6 5 (1.71%) IBM
6 5 (1.71%) Palo Alto
7 4 (1.37%) BMC
7 4 (1.37%) Informatica
8 3 (1.03%) NetApp
8 3 (1.03%) Remedy
8 3 (1.03%) Sybase
8 3 (1.03%) Temenos