Period
to 2 June 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 2 June 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
2 Jun 2020
Same period 2019 Same period 2018
Rank 25 20 22
Rank change year-on-year -5 +2 -11
Contract jobs citing Linux 188 491 558
As % of all contract jobs advertised in the City of London 6.28% 7.68% 8.01%
As % of the Operating Systems category 36.79% 40.08% 38.97%
Number of daily rates quoted 135 365 473
Median daily rate £520 £550 £525
Median daily rate % change year-on-year -5.45% +4.76% -
10th Percentile £358 £413 £394
90th Percentile £650 £700 £688
Central London median daily rate £525 £550 £525
% change year-on-year -4.55% +4.76% +2.44%
Number of hourly rates quoted 1 4 3
Median hourly rate £15.00 £39.10 £32.00
Median hourly rate % change year-on-year -61.64% +22.19% -
Central London median hourly rate £37.50 £37.50 £32.00
% change year-on-year - +17.19% -

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 511 1,225 1,432
As % of all contract IT jobs advertised in the City of London 17.06% 19.16% 20.56%
Number of daily rates quoted 373 921 1,128
Median daily rate £450 £475 £500
Median daily rate % change year-on-year -5.26% -5.00% +5.26%
10th Percentile £150 £163 £223
90th Percentile £608 £650 £650
Central London median daily rate £450 £478 £500
% change year-on-year -5.76% -4.50% +8.11%
Number of hourly rates quoted 11 22 51
Median hourly rate £16.95 £21.00 £19.25
Median hourly rate % change year-on-year -19.29% +9.09% +13.24%
10th Percentile £12.50 £16.64 £13.00
90th Percentile £21.00 £37.50 £23.75
Median hourly rate £18.70 £21.00 £20.00
% change year-on-year -10.95% +5.00% +14.29%

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 2 June 2020.

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 2 June 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 78 (41.49%) DevOps
2 60 (31.91%) Kubernetes
3 58 (30.85%) Docker
3 58 (30.85%) Python
4 54 (28.72%) AWS
5 53 (28.19%) Windows
5 53 (28.19%) Agile Software Development
6 50 (26.60%) Unix
7 47 (25.00%) Terraform
8 45 (23.94%) Jenkins
8 45 (23.94%) Ansible
8 45 (23.94%) Git (software)
9 42 (22.34%) Java
10 41 (21.81%) SQL
11 38 (20.21%) Azure
12 34 (18.09%) Infrastructure as Code
13 32 (17.02%) Security Cleared
13 32 (17.02%) JIRA
14 30 (15.96%) Finance
15 26 (13.83%) Bash Shell
15 26 (13.83%) Confluence
15 26 (13.83%) Public Sector
16 24 (12.77%) Active Directory
17 23 (12.23%) Microsoft
17 23 (12.23%) Oracle
17 23 (12.23%) Puppet
18 21 (11.17%) Continuous Integration
19 20 (10.64%) Amazon EC2
20 19 (10.11%) Packer
20 19 (10.11%) Microservices

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 26 (13.83%) Confluence
2 13 (6.91%) Apache
3 10 (5.32%) Apache Spark
4 7 (3.72%) Elasticsearch
4 7 (3.72%) Tomcat
5 4 (2.13%) CMS
5 4 (2.13%) SharePoint
6 3 (1.60%) Apache Airflow
6 3 (1.60%) nginx
6 3 (1.60%) WebLogic
7 2 (1.06%) DataSynapse
7 2 (1.06%) Drupal
7 2 (1.06%) Oracle SOA Suite
7 2 (1.06%) SAS
8 1 (0.53%) Cloud Foundry
8 1 (0.53%) IIS
8 1 (0.53%) OpenStack
8 1 (0.53%) SharePoint Server
8 1 (0.53%) Skype for Business
8 1 (0.53%) SugarCRM
Applications
1 4 (2.13%) Microsoft Office
2 2 (1.06%) Microsoft Excel
3 1 (0.53%) SPSS
Business Applications
1 3 (1.60%) Temenos T24
2 2 (1.06%) Magento
3 1 (0.53%) Refinitiv Enterprise Platform
Cloud Services
1 54 (28.72%) AWS
2 38 (20.21%) Azure
3 20 (10.64%) Amazon EC2
4 14 (7.45%) GCP
5 12 (6.38%) IaaS
6 7 (3.72%) Amazon EKS
6 7 (3.72%) GitHub
7 6 (3.19%) Amazon S3
7 6 (3.19%) AWS CloudFormation
7 6 (3.19%) Serverless
8 4 (2.13%) AWS Lambda
8 4 (2.13%) Cloud Computing
8 4 (2.13%) NuGet
8 4 (2.13%) OpenShift
9 3 (1.60%) Amazon CloudWatch
9 3 (1.60%) Amazon Kinesis
9 3 (1.60%) Power Platform
9 3 (1.60%) Virtual Private Cloud
10 2 (1.06%) Amazon ELB
10 2 (1.06%) AWS Elastic Beanstalk
Communications & Networking
1 17 (9.04%) DNS
2 10 (5.32%) TCP/IP
3 9 (4.79%) Internet
4 8 (4.26%) DHCP
5 7 (3.72%) HTTP
6 4 (2.13%) Firewall
6 4 (2.13%) SSL
7 3 (1.60%) FTP
7 3 (1.60%) Intranet
7 3 (1.60%) VPN
8 2 (1.06%) Ethernet
8 2 (1.06%) Intrusion Detection
8 2 (1.06%) IPv4
8 2 (1.06%) IPv6
8 2 (1.06%) OpenVPN
8 2 (1.06%) Wi-Fi
9 1 (0.53%) DOCSIS
9 1 (0.53%) MPLS
9 1 (0.53%) MQTT
9 1 (0.53%) Software-Defined Networking
Database & Business Intelligence
1 18 (9.57%) Big Data
1 18 (9.57%) MySQL
2 15 (7.98%) MongoDB
3 13 (6.91%) SQL Server
4 12 (6.38%) NoSQL
5 8 (4.26%) Oracle Database
6 7 (3.72%) Hadoop
7 6 (3.19%) Amazon RDS
8 5 (2.66%) PostgreSQL
8 5 (2.66%) Relational Database
8 5 (2.66%) SQL Server Analysis Services
9 4 (2.13%) Redis
9 4 (2.13%) SQL Server Integration Services
9 4 (2.13%) SQL Server Reporting Services
10 3 (1.60%) Oracle Database 11g
10 3 (1.60%) Power BI
11 2 (1.06%) Apache Cassandra
11 2 (1.06%) Data Warehouse
11 2 (1.06%) Oracle Reports
11 2 (1.06%) Spark SQL
Development Applications
1 45 (23.94%) Git (software)
1 45 (23.94%) Jenkins
2 32 (17.02%) JIRA
3 7 (3.72%) GitLab
3 7 (3.72%) Maven
4 6 (3.19%) Atlassian Bamboo
4 6 (3.19%) TeamCity
5 5 (2.66%) Bitbucket
5 5 (2.66%) Sonatype Nexus
6 4 (2.13%) Gradle
6 4 (2.13%) JUnit
7 3 (1.60%) FishEye
7 3 (1.60%) gulp
7 3 (1.60%) Selenium
7 3 (1.60%) SonarQube
8 2 (1.06%) Babel
8 2 (1.06%) Gatling
8 2 (1.06%) Terragrunt
8 2 (1.06%) Travis CI
8 2 (1.06%) webpack
General
1 30 (15.96%) Finance
2 26 (13.83%) Public Sector
3 17 (9.04%) Banking
4 6 (3.19%) Telecoms
5 5 (2.66%) Retail
6 4 (2.13%) Front Office
6 4 (2.13%) Investment Banking
7 3 (1.60%) Back Office
7 3 (1.60%) Electronics
7 3 (1.60%) Law
7 3 (1.60%) Manufacturing
7 3 (1.60%) Marketing
8 1 (0.53%) French Language
8 1 (0.53%) Legal
8 1 (0.53%) Prime Brokerage
Job Titles
1 49 (26.06%) DevOps Engineer
2 35 (18.62%) Developer
3 14 (7.45%) Analyst
4 13 (6.91%) Java Developer
5 12 (6.38%) Architect
6 10 (5.32%) Linux Engineer
7 9 (4.79%) AWS DevOps
7 9 (4.79%) AWS Engineer
8 8 (4.26%) AWS DevOps Engineer
9 7 (3.72%) Administrator
9 7 (3.72%) Cloud Architect
9 7 (3.72%) Cloud Engineer
9 7 (3.72%) Consultant
10 6 (3.19%) Kubernetes Engineer
11 5 (2.66%) Data Engineer
11 5 (2.66%) Infrastructure Engineer
11 5 (2.66%) Linux Developer
11 5 (2.66%) Senior DevOps
12 4 (2.13%) Azure Engineer
12 4 (2.13%) Full Stack Developer
Libraries, Frameworks & Software Standards
1 14 (7.45%) HTML
1 14 (7.45%) Web Services
2 12 (6.38%) REST
3 11 (5.85%) .NET
3 11 (5.85%) Node.js
3 11 (5.85%) SOAP
3 11 (5.85%) Spring
4 10 (5.32%) Kafka
5 8 (4.26%) CSS
5 8 (4.26%) JSON
6 7 (3.72%) AngularJS
6 7 (3.72%) LDAP
6 7 (3.72%) XML
7 6 (3.19%) HTML5
7 6 (3.19%) jQuery
7 6 (3.19%) RabbitMQ
7 6 (3.19%) RESTful
7 6 (3.19%) Spring Boot
8 5 (2.66%) Ajax
8 5 (2.66%) Elastic Stack
Miscellaneous
1 11 (5.85%) Analytical Skills
2 8 (4.26%) Data Centre
2 8 (4.26%) Public Cloud
3 7 (3.72%) Linux Command Line
4 5 (2.66%) Enterprise Software
4 5 (2.66%) Virtual Team
5 4 (2.13%) Cloud Native
5 4 (2.13%) Clustering
5 4 (2.13%) Data Structures
5 4 (2.13%) Greenfield Project
6 3 (1.60%) Blog
6 3 (1.60%) Grid Computing
6 3 (1.60%) Management Information System
6 3 (1.60%) Replication
6 3 (1.60%) Security Operations Centre
6 3 (1.60%) Self-Motivation
6 3 (1.60%) SWIFT
7 2 (1.06%) Algorithms
7 2 (1.06%) Foreign Exchange (FX)
7 2 (1.06%) Private Cloud
Operating Systems
1 53 (28.19%) Windows
2 50 (26.60%) Unix
3 18 (9.57%) Windows Server
4 14 (7.45%) Red Hat Enterprise Linux
5 6 (3.19%) CentOS
6 5 (2.66%) Mac OS X
7 4 (2.13%) Ubuntu
8 3 (1.60%) Android
8 3 (1.60%) Debian
8 3 (1.60%) Solaris
9 2 (1.06%) SUSE
9 2 (1.06%) Windows 10
10 1 (0.53%) AIX
10 1 (0.53%) Amazon Linux
10 1 (0.53%) Apple iOS
10 1 (0.53%) Oracle Linux
10 1 (0.53%) Windows Server 2003
Processes & Methodologies
1 78 (41.49%) DevOps
2 53 (28.19%) Agile Software Development
3 34 (18.09%) Infrastructure as Code
4 21 (11.17%) Continuous Integration
5 19 (10.11%) Microservices
6 17 (9.04%) Configuration Management
7 16 (8.51%) Migration
8 12 (6.38%) Test Automation
9 11 (5.85%) ITIL
10 10 (5.32%) High Availability
10 10 (5.32%) Open Source
10 10 (5.32%) TDD
11 9 (4.79%) Software Engineering
12 8 (4.26%) Problem-Solving
12 8 (4.26%) Scrum
13 7 (3.72%) E-Commerce
13 7 (3.72%) Incident Management
14 6 (3.19%) Business Intelligence
14 6 (3.19%) Project Management
14 6 (3.19%) Site Reliability Engineering
Programming Languages
1 58 (30.85%) Python
2 42 (22.34%) Java
3 41 (21.81%) SQL
4 26 (13.83%) Bash Shell
5 18 (9.57%) JavaScript
6 16 (8.51%) PowerShell
6 16 (8.51%) Shell Script
7 14 (7.45%) Ruby
8 12 (6.38%) PHP
9 10 (5.32%) Groovy
9 10 (5.32%) Perl
10 9 (4.79%) C
11 8 (4.26%) Java 8
12 7 (3.72%) PL/SQL
13 6 (3.19%) Go
14 5 (2.66%) TypeScript
14 5 (2.66%) VBScript
15 4 (2.13%) C#
15 4 (2.13%) C++
16 2 (1.06%) VB
Qualifications
1 32 (17.02%) Security Cleared
2 18 (9.57%) SC Cleared
3 7 (3.72%) Degree
4 3 (1.60%) CISA
4 3 (1.60%) Cisco Certification
4 3 (1.60%) CISM
4 3 (1.60%) CISSP
4 3 (1.60%) Computer Science Degree
4 3 (1.60%) CREST Certified
4 3 (1.60%) GIAC
4 3 (1.60%) ISEB
5 2 (1.06%) AWS Certification
5 2 (1.06%) DV Cleared
5 2 (1.06%) ISTQB
5 2 (1.06%) ISTQB Foundation Certification
5 2 (1.06%) Microsoft Certification
6 1 (0.53%) CCENT
6 1 (0.53%) CHECK Team Member
6 1 (0.53%) Master's Degree
6 1 (0.53%) Network+ Certification
Quality Assurance & Compliance
1 5 (2.66%) QA
2 4 (2.13%) SLA
3 1 (0.53%) Data Quality
3 1 (0.53%) ISO/IEC 20000
3 1 (0.53%) NIST
System Software
1 58 (30.85%) Docker
2 24 (12.77%) Active Directory
3 6 (3.19%) VMware Infrastructure
4 5 (2.66%) Virtual Servers
5 3 (1.60%) BitLocker
5 3 (1.60%) Virtual Machines
6 2 (1.06%) Apache Flume
6 2 (1.06%) HDFS
6 2 (1.06%) Hyper-V
6 2 (1.06%) Veritas Cluster Server
6 2 (1.06%) VirtualBox
7 1 (0.53%) Microsoft Virtual Server
7 1 (0.53%) Oracle RAC
7 1 (0.53%) Terminal Server
7 1 (0.53%) VMware NSX
7 1 (0.53%) vSphere
7 1 (0.53%) Xen
Systems Management
1 60 (31.91%) Kubernetes
2 47 (25.00%) Terraform
3 45 (23.94%) Ansible
4 23 (12.23%) Puppet
5 19 (10.11%) Packer
6 16 (8.51%) Istio
7 13 (6.91%) Opscode Chef
8 4 (2.13%) Data Guard
8 4 (2.13%) Grafana
8 4 (2.13%) logstash
8 4 (2.13%) Oracle Enterprise Manager
8 4 (2.13%) Salt
9 3 (1.60%) Docker Swarm
9 3 (1.60%) EnCase
9 3 (1.60%) FTK
9 3 (1.60%) Prometheus
9 3 (1.60%) Rancher
9 3 (1.60%) SCOM
9 3 (1.60%) Single Sign-On
10 2 (1.06%) ZABBIX
Vendors
1 23 (12.23%) Microsoft
1 23 (12.23%) Oracle
2 12 (6.38%) Google
3 11 (5.85%) VMware
4 10 (5.32%) Red Hat
5 7 (3.72%) Cisco
5 7 (3.72%) Splunk
6 6 (3.19%) Atlassian
7 5 (2.66%) CyberArk
7 5 (2.66%) SAP
7 5 (2.66%) ServiceNow
8 4 (2.13%) HP
8 4 (2.13%) SaltStack
9 3 (1.60%) Cellebrite
9 3 (1.60%) MapR
9 3 (1.60%) Remedy
9 3 (1.60%) Sybase
9 3 (1.60%) Temenos
9 3 (1.60%) Veritas
10 2 (1.06%) New Relic