Period
to 29 September 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 29 September 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
29 Sep 2020
Same period 2019 Same period 2018
Rank 23 19 22
Rank change year-on-year -4 +3 -3
Contract jobs citing Linux 131 443 531
As % of all contract jobs advertised in the City of London 7.29% 7.27% 7.65%
As % of the Operating Systems category 41.19% 37.77% 37.53%
Number of daily rates quoted 103 354 433
Median daily rate £525 £550 £525
Median daily rate % change year-on-year -4.55% +4.76% -
10th Percentile £363 £364 £389
90th Percentile £650 £688 £698
Central London median daily rate £525 £539 £525
% change year-on-year -2.55% +2.62% -
Number of hourly rates quoted 1 3 3
Median hourly rate £37.50 £43.20 £32.00
Median hourly rate % change year-on-year -13.19% +35.00% -
10th Percentile £36.75 £41.60 £23.20
90th Percentile £38.25 £49.96 £33.00
Central London median hourly rate £37.50 £43.20 £32.00
% change year-on-year -13.19% +35.00% -

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 318 1,173 1,415
As % of all contract IT jobs advertised in the City of London 17.69% 19.25% 20.39%
Number of daily rates quoted 224 911 1,082
Median daily rate £471 £475 £488
Median daily rate % change year-on-year -0.79% -2.56% +2.63%
10th Percentile £213 £165 £167
90th Percentile £638 £650 £644
Central London median daily rate £474 £475 £475
% change year-on-year -0.26% - -
Number of hourly rates quoted 3 32 72
Median hourly rate £22.50 £20.67 £18.70
Median hourly rate % change year-on-year +8.88% +10.51% +10.00%
10th Percentile £20.50 £12.04 £13.10
90th Percentile £35.10 £44.80 £25.35
Median hourly rate £21.25 £20.50 £18.70
% change year-on-year +3.66% +9.63% +5.35%

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 29 September 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 29 September 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 45 (34.35%) Python
2 44 (33.59%) Unix
3 41 (31.30%) DevOps
4 37 (28.24%) AWS
4 37 (28.24%) Java
5 33 (25.19%) Windows
5 33 (25.19%) Docker
6 32 (24.43%) Finance
7 28 (21.37%) Kubernetes
8 26 (19.85%) Git (software)
8 26 (19.85%) Oracle
9 25 (19.08%) Ansible
9 25 (19.08%) Terraform
10 23 (17.56%) SQL
10 23 (17.56%) Banking
11 22 (16.79%) Jenkins
12 21 (16.03%) Agile Software Development
13 20 (15.27%) MySQL
14 19 (14.50%) Azure
15 18 (13.74%) Puppet
15 18 (13.74%) Opscode Chef
16 17 (12.98%) SQL Server
16 17 (12.98%) Web Services
17 16 (12.21%) Configuration Management
17 16 (12.21%) Active Directory
17 16 (12.21%) Spring
17 16 (12.21%) Microservices
17 16 (12.21%) REST
17 16 (12.21%) Bash Shell
17 16 (12.21%) Red Hat Enterprise Linux

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 10 (7.63%) Confluence
2 9 (6.87%) Apache
3 7 (5.34%) Elasticsearch
4 5 (3.82%) Apache Spark
4 5 (3.82%) SharePoint
4 5 (3.82%) WebSphere
5 4 (3.05%) JBoss
5 4 (3.05%) Tomcat
6 3 (2.29%) CMS
6 3 (2.29%) nginx
6 3 (2.29%) Red Hat Fuse
7 2 (1.53%) IIS
7 2 (1.53%) WebSphere Application Server
8 1 (0.76%) Appian
8 1 (0.76%) Jupyter
8 1 (0.76%) Liferay
8 1 (0.76%) Oracle SOA Suite
8 1 (0.76%) SharePoint Server
8 1 (0.76%) WebLogic
8 1 (0.76%) WordPress
Applications
1 3 (2.29%) Microsoft Office
2 2 (1.53%) Microsoft Excel
3 1 (0.76%) MS Visio
Business Applications
1 3 (2.29%) SunGard Martini
2 1 (0.76%) Magento
Cloud Services
1 37 (28.24%) AWS
2 19 (14.50%) Azure
3 9 (6.87%) GCP
4 8 (6.11%) Amazon EC2
5 7 (5.34%) Amazon S3
5 7 (5.34%) OpenShift
6 6 (4.58%) Serverless
7 5 (3.82%) AWS Lambda
7 5 (3.82%) GitHub
7 5 (3.82%) IaaS
8 4 (3.05%) Amazon CloudWatch
8 4 (3.05%) Amazon EKS
8 4 (3.05%) AWS CloudFormation
9 3 (2.29%) Amazon ECS
9 3 (2.29%) Amazon ELB
9 3 (2.29%) Cloud Computing
9 3 (2.29%) NuGet
9 3 (2.29%) Virtual Private Cloud
10 2 (1.53%) CloudFront
10 2 (1.53%) Route 53
Communications & Networking
1 13 (9.92%) Internet
2 12 (9.16%) TCP/IP
3 10 (7.63%) DNS
4 8 (6.11%) HTTP
5 7 (5.34%) DHCP
5 7 (5.34%) Firewall
6 6 (4.58%) Kerberos
7 4 (3.05%) HTTPS
7 4 (3.05%) Intrusion Detection
7 4 (3.05%) IPsec
8 3 (2.29%) Intranet
8 3 (2.29%) Multicast
9 2 (1.53%) AMQP
9 2 (1.53%) SNMP
9 2 (1.53%) SSL
10 1 (0.76%) Ethernet
10 1 (0.76%) FTP
10 1 (0.76%) SMTP
10 1 (0.76%) VPN
10 1 (0.76%) WAN
Database & Business Intelligence
1 20 (15.27%) MySQL
2 17 (12.98%) SQL Server
3 14 (10.69%) Relational Database
4 10 (7.63%) PostgreSQL
5 8 (6.11%) MongoDB
6 7 (5.34%) Amazon RDS
6 7 (5.34%) Big Data
7 6 (4.58%) Data Warehouse
7 6 (4.58%) NoSQL
8 5 (3.82%) Oracle Database
9 4 (3.05%) Oracle Database 11g
10 3 (2.29%) RDBMS
10 3 (2.29%) Redis
10 3 (2.29%) SQL Server Reporting Services
11 2 (1.53%) Amazon Redshift
11 2 (1.53%) Hadoop
11 2 (1.53%) MariaDB
11 2 (1.53%) Spark SQL
11 2 (1.53%) SQL Server Analysis Services
11 2 (1.53%) SQL Server Integration Services
Development Applications
1 26 (19.85%) Git (software)
2 22 (16.79%) Jenkins
3 14 (10.69%) JIRA
4 10 (7.63%) Maven
5 6 (4.58%) Atlassian Bamboo
5 6 (4.58%) Bitbucket
5 6 (4.58%) Subversion
6 5 (3.82%) FishEye
6 5 (3.82%) GitLab
6 5 (3.82%) Gradle
6 5 (3.82%) JUnit
7 4 (3.05%) SonarQube
8 3 (2.29%) GCC
8 3 (2.29%) GDB
8 3 (2.29%) Jasmine
8 3 (2.29%) Sonatype Nexus
9 2 (1.53%) Hudson
9 2 (1.53%) jMock
9 2 (1.53%) Mocha
9 2 (1.53%) TeamCity
General
1 32 (24.43%) Finance
2 23 (17.56%) Banking
3 13 (9.92%) Investment Banking
4 9 (6.87%) Public Sector
5 8 (6.11%) Front Office
6 5 (3.82%) Telecoms
7 4 (3.05%) French Language
7 4 (3.05%) Retail
8 3 (2.29%) Electronics
8 3 (2.29%) Law
8 3 (2.29%) Manufacturing
8 3 (2.29%) Marketing
9 2 (1.53%) Back Office
9 2 (1.53%) International Banking
10 1 (0.76%) Advertising
Job Titles
1 36 (27.48%) Developer
2 27 (20.61%) DevOps Engineer
3 11 (8.40%) Java Developer
4 8 (6.11%) Analyst
5 7 (5.34%) AWS Engineer
6 6 (4.58%) AWS DevOps
6 6 (4.58%) Linux Engineer
6 6 (4.58%) Security Engineer
6 6 (4.58%) Site Engineer
6 6 (4.58%) Site Reliability Engineer
7 5 (3.82%) Administrator
7 5 (3.82%) Architect
7 5 (3.82%) AWS DevOps Engineer
7 5 (3.82%) Infrastructure Engineer
7 5 (3.82%) Python Developer
8 4 (3.05%) Java Engineer
8 4 (3.05%) Junior
8 4 (3.05%) Junior DevOps
8 4 (3.05%) Junior DevOps Engineer
8 4 (3.05%) Systems Engineer
Libraries, Frameworks & Software Standards
1 17 (12.98%) Web Services
2 16 (12.21%) REST
2 16 (12.21%) Spring
3 10 (7.63%) Kafka
3 10 (7.63%) Middleware
4 9 (6.87%) HTML
4 9 (6.87%) LDAP
5 8 (6.11%) CSS
5 8 (6.11%) Spring Boot
6 7 (5.34%) JMS
6 7 (5.34%) Node.js
6 7 (5.34%) RabbitMQ
6 7 (5.34%) XML
7 5 (3.82%) LAMP
7 5 (3.82%) RESTful
8 4 (3.05%) .NET
8 4 (3.05%) AngularJS
9 3 (2.29%) Boost C++ Libraries
9 3 (2.29%) Celery
9 3 (2.29%) HTML5
Miscellaneous
1 14 (10.69%) Analytical Skills
2 10 (7.63%) Fixed Income
3 8 (6.11%) Management Information System
4 5 (3.82%) Data Centre
4 5 (3.82%) Foreign Exchange (FX)
5 4 (3.05%) Blog
5 4 (3.05%) Clustering
5 4 (3.05%) Linux Command Line
6 3 (2.29%) Algorithms
6 3 (2.29%) Data Structures
6 3 (2.29%) Enterprise Software
6 3 (2.29%) Private Cloud
6 3 (2.29%) User Experience
7 2 (1.53%) Cloud Native
7 2 (1.53%) Replication
7 2 (1.53%) Self-Motivation
7 2 (1.53%) Virtual Team
8 1 (0.76%) Equities
8 1 (0.76%) Exotic Derivative
8 1 (0.76%) Grid Computing
Operating Systems
1 44 (33.59%) Unix
2 33 (25.19%) Windows
3 16 (12.21%) Red Hat Enterprise Linux
4 6 (4.58%) Windows Server
5 5 (3.82%) Mac OS X
6 4 (3.05%) CentOS
6 4 (3.05%) Debian
7 2 (1.53%) AIX
7 2 (1.53%) HPUX
7 2 (1.53%) Windows 10
7 2 (1.53%) Windows 7
8 1 (0.76%) Android
8 1 (0.76%) Apple iOS
8 1 (0.76%) Mac OS
8 1 (0.76%) Solaris
8 1 (0.76%) Ubuntu
8 1 (0.76%) Windows Server 2008
8 1 (0.76%) Windows Server 2012
8 1 (0.76%) Windows Server 2016
8 1 (0.76%) Windows Server 2019
Processes & Methodologies
1 41 (31.30%) DevOps
2 21 (16.03%) Agile Software Development
3 16 (12.21%) Configuration Management
3 16 (12.21%) Microservices
4 13 (9.92%) Continuous Integration
4 13 (9.92%) Infrastructure as Code
4 13 (9.92%) Migration
4 13 (9.92%) Scrum
4 13 (9.92%) TDD
5 12 (9.16%) OO
5 12 (9.16%) Open Source
6 11 (8.40%) High Availability
6 11 (8.40%) SIEM
6 11 (8.40%) Test Automation
7 10 (7.63%) Cybersecurity
7 10 (7.63%) Information Security
7 10 (7.63%) Problem-Solving
8 9 (6.87%) Analytics
9 7 (5.34%) Computer Science
9 7 (5.34%) Performance Tuning
Programming Languages
1 45 (34.35%) Python
2 37 (28.24%) Java
3 23 (17.56%) SQL
4 16 (12.21%) Bash Shell
5 14 (10.69%) C++
5 14 (10.69%) JavaScript
6 12 (9.16%) Perl
7 11 (8.40%) Ruby
8 8 (6.11%) C
8 8 (6.11%) PowerShell
9 7 (5.34%) Java 8
10 6 (4.58%) C#
11 5 (3.82%) PL/SQL
11 5 (3.82%) Shell Script
12 3 (2.29%) Groovy
12 3 (2.29%) PHP
13 2 (1.53%) Scala
13 2 (1.53%) T-SQL
13 2 (1.53%) TypeScript
13 2 (1.53%) VBScript
Qualifications
1 13 (9.92%) Security Cleared
2 10 (7.63%) SC Cleared
3 7 (5.34%) Degree
4 5 (3.82%) Computer Science Degree
5 4 (3.05%) CISSP
6 3 (2.29%) AWS Certification
6 3 (2.29%) CISA
6 3 (2.29%) CISM
6 3 (2.29%) CREST Certified
6 3 (2.29%) GIAC
7 1 (0.76%) BPSS Clearance
7 1 (0.76%) CompTIA Security+
7 1 (0.76%) DBS Check
7 1 (0.76%) DV Cleared
7 1 (0.76%) GCFA
7 1 (0.76%) ISEB
7 1 (0.76%) ISTQB
7 1 (0.76%) ISTQB Foundation Certification
7 1 (0.76%) Postgraduate
Quality Assurance & Compliance
1 4 (3.05%) QA
2 3 (2.29%) SLA
3 2 (1.53%) WCAG
4 1 (0.76%) Disclosure Scotland
4 1 (0.76%) ISO 20022
System Software
1 33 (25.19%) Docker
2 16 (12.21%) Active Directory
3 10 (7.63%) VMware Infrastructure
4 3 (2.29%) BitLocker
5 2 (1.53%) Veritas Cluster Server
5 2 (1.53%) Virtual Machines
5 2 (1.53%) VMware NSX
6 1 (0.76%) HDFS
6 1 (0.76%) Squid
6 1 (0.76%) VirtualBox
6 1 (0.76%) VMware ESXi
Systems Management
1 28 (21.37%) Kubernetes
2 25 (19.08%) Ansible
2 25 (19.08%) Terraform
3 18 (13.74%) Opscode Chef
3 18 (13.74%) Puppet
4 5 (3.82%) Nagios
5 4 (3.05%) Salt
6 3 (2.29%) EnCase
6 3 (2.29%) FTK
6 3 (2.29%) Grafana
6 3 (2.29%) Kibana
6 3 (2.29%) logstash
6 3 (2.29%) Norton AntiVirus
6 3 (2.29%) Packer
6 3 (2.29%) Prometheus
6 3 (2.29%) Rancher
7 2 (1.53%) Oracle Enterprise Manager
7 2 (1.53%) Pacemaker
8 1 (0.76%) Mesos
8 1 (0.76%) Red Hat Satellite
Vendors
1 26 (19.85%) Oracle
2 14 (10.69%) Red Hat
3 12 (9.16%) Microsoft
4 11 (8.40%) VMware
5 8 (6.11%) Cisco
5 8 (6.11%) Splunk
6 7 (5.34%) IBM
6 7 (5.34%) Sybase
7 6 (4.58%) Atlassian
7 6 (4.58%) SaltStack
8 5 (3.82%) CyberArk
8 5 (3.82%) Google
8 5 (3.82%) Qualys
9 4 (3.05%) ArcSight
9 4 (3.05%) McAfee
10 3 (2.29%) HP
10 3 (2.29%) NetApp
10 3 (2.29%) SunGard
10 3 (2.29%) Symantec
10 3 (2.29%) Veritas