Period
to 12 August 2020

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Linux skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Linux over the 6 months to 12 August 2020 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
12 Aug 2020
Same period 2019 Same period 2018
Rank 21 20 20
Rank change year-on-year -1 0 -8
Permanent jobs citing Linux 462 962 1,098
As % of all permanent jobs advertised in the City of London 9.39% 9.48% 10.07%
As % of the Operating Systems category 45.43% 40.83% 46.06%
Number of salaries quoted 422 910 1,043
Median annual salary £71,000 £72,500 £67,500
Median salary % change year-on-year -2.07% +7.41% +12.50%
10th Percentile £47,500 £45,675 £41,250
90th Percentile £102,500 £110,000 £95,000
Central London median annual salary £70,000 £70,000 £65,000
% change year-on-year - +7.69% +8.33%

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

All Operating Systems
City of London
Permanent vacancies with a requirement for operating system skills 1,017 2,356 2,384
As % of all permanent IT jobs advertised in the City of London 20.67% 23.23% 21.87%
Number of salaries quoted 891 2,071 2,148
Median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% +9.09%
10th Percentile £35,000 £29,000 £29,175
90th Percentile £91,250 £93,750 £90,000
Central London median annual salary £65,000 £60,000 £60,000
% change year-on-year +8.33% - +13.21%

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
Salary Trend in the City of London

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

Salary trend for Linux in the City of London

Linux
Salary Histogram in the City of London

Salary distribution for jobs citing Linux in the City of London over the 6 months to 12 August 2020.

Salary histogram for Linux in the City of London

Linux
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Linux within the City of London region over the 6 months to 12 August 2020. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
London Bridge +12 3 £70,000 +47.37%
Moorgate - 2 £75,000 -
Linux
Central London

For the 6 months to 12 August 2020, IT 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 permanent job ads across the City of London region with a requirement for Linux.

1 195 (42.21%) Python
2 167 (36.15%) Finance
3 166 (35.93%) DevOps
4 165 (35.71%) AWS
5 146 (31.60%) Windows
6 128 (27.71%) Docker
7 124 (26.84%) Java
8 120 (25.97%) Kubernetes
9 108 (23.38%) Agile Software Development
10 94 (20.35%) Azure
11 90 (19.48%) Unix
12 84 (18.18%) SQL
13 73 (15.80%) Git (software)
14 70 (15.15%) Ansible
15 68 (14.72%) Jenkins
16 67 (14.50%) Terraform
17 62 (13.42%) JavaScript
17 62 (13.42%) Microsoft
18 55 (11.90%) Puppet
19 53 (11.47%) Test Automation
20 52 (11.26%) Firewall
21 51 (11.04%) VMware
21 51 (11.04%) JIRA
22 50 (10.82%) C#
22 50 (10.82%) Bash Shell
22 50 (10.82%) GCP
23 47 (10.17%) C++
23 47 (10.17%) Configuration Management
23 47 (10.17%) Software Engineering
24 45 (9.74%) Fintech

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 31 (6.71%) Apache
1 31 (6.71%) Tomcat
2 23 (4.98%) Confluence
3 21 (4.55%) Elasticsearch
4 7 (1.52%) Apache Spark
4 7 (1.52%) nginx
5 5 (1.08%) Cloud Foundry
5 5 (1.08%) JBoss
5 5 (1.08%) MQSeries
5 5 (1.08%) SharePoint
6 4 (0.87%) WebSphere
7 3 (0.65%) Adobe Experience Manager
7 3 (0.65%) CMS
7 3 (0.65%) IIS
8 2 (0.43%) Resin
8 2 (0.43%) SharePoint Server
8 2 (0.43%) WebLogic
9 1 (0.22%) Apache Airflow
9 1 (0.22%) OpenStack
9 1 (0.22%) uWSGI
Applications
1 13 (2.81%) Microsoft Office
2 9 (1.95%) Microsoft Excel
3 5 (1.08%) Microsoft PowerPoint
4 1 (0.22%) Gliffy
4 1 (0.22%) MS Visio
Business Applications
1 5 (1.08%) Salerio
2 2 (0.43%) Oracle Applications
2 2 (0.43%) Sentinel
3 1 (0.22%) Distributed Ledger
3 1 (0.22%) Oracle Cash Management
3 1 (0.22%) Oracle EBS
3 1 (0.22%) Oracle EBS R12
3 1 (0.22%) Oracle E-Business Tax
3 1 (0.22%) Oracle General Ledger
3 1 (0.22%) Oracle Internet Expenses
3 1 (0.22%) Oracle iProcurement
3 1 (0.22%) Oracle Payables
3 1 (0.22%) Oracle Receivables
3 1 (0.22%) R3 Corda
Cloud Services
1 165 (35.71%) AWS
2 94 (20.35%) Azure
3 50 (10.82%) GCP
4 19 (4.11%) Office 365
5 18 (3.90%) SaaS
6 10 (2.16%) AWS CloudFormation
6 10 (2.16%) GitHub
7 9 (1.95%) Heroku
7 9 (1.95%) OpenShift
7 9 (1.95%) PaaS
8 8 (1.73%) Amazon EC2
9 7 (1.52%) Cloud Computing
9 7 (1.52%) IaaS
10 6 (1.30%) Amazon ECS
10 6 (1.30%) Azure Active Directory
11 5 (1.08%) Amazon EKS
11 5 (1.08%) Datadog
11 5 (1.08%) IBM Cloud
11 5 (1.08%) Serverless
12 4 (0.87%) Amazon CloudWatch
Communications & Networking
1 52 (11.26%) Firewall
2 44 (9.52%) TCP/IP
3 19 (4.11%) DNS
3 19 (4.11%) Wireshark
4 15 (3.25%) HTTP
5 14 (3.03%) WAN
6 13 (2.81%) LAN
6 13 (2.81%) OSPF
7 12 (2.60%) VPN
8 11 (2.38%) Wireless
9 10 (2.16%) BGP
9 10 (2.16%) Network Security
10 9 (1.95%) Cisco ASA
10 9 (1.95%) Multicast
11 8 (1.73%) F5 BIG-IP LTM
12 7 (1.52%) F5 BIG-IP GTM
12 7 (1.52%) SSL
13 6 (1.30%) DHCP
13 6 (1.30%) Internet
13 6 (1.30%) SAN
Database & Business Intelligence
1 42 (9.09%) SQL Server
2 38 (8.23%) NoSQL
3 34 (7.36%) MySQL
4 28 (6.06%) Big Data
5 27 (5.84%) PostgreSQL
6 20 (4.33%) Relational Database
7 14 (3.03%) Hadoop
8 13 (2.81%) Neo4j
9 12 (2.60%) MongoDB
10 10 (2.16%) Redis
11 9 (1.95%) Apache Cassandra
11 9 (1.95%) Blockchain
12 6 (1.30%) Amazon RDS
12 6 (1.30%) RDBMS
13 5 (1.08%) HBase
14 3 (0.65%) Azure SQL Database
15 2 (0.43%) Apache Hive
15 2 (0.43%) Data Lake
15 2 (0.43%) Oracle Database
15 2 (0.43%) SQL Server Reporting Services
Development Applications
1 73 (15.80%) Git (software)
2 68 (14.72%) Jenkins
3 51 (11.04%) JIRA
4 23 (4.98%) Bitbucket
5 18 (3.90%) Maven
6 17 (3.68%) GitLab
7 15 (3.25%) Sonatype Nexus
8 13 (2.81%) git-flow
9 9 (1.95%) Artifactory
9 9 (1.95%) SonarQube
10 8 (1.73%) Atlassian Bamboo
11 7 (1.52%) RSpec
12 6 (1.30%) Subversion
13 5 (1.08%) Gradle
13 5 (1.08%) TeamCity
14 4 (0.87%) Ant
14 4 (0.87%) eggPlant
14 4 (0.87%) GCC
14 4 (0.87%) Locust
14 4 (0.87%) Selenium
General
1 167 (36.15%) Finance
2 35 (7.58%) Banking
3 17 (3.68%) Front Office
4 12 (2.60%) Retail
4 12 (2.60%) Telecoms
5 11 (2.38%) Law
6 10 (2.16%) Financial Institution
6 10 (2.16%) Investment Banking
7 8 (1.73%) Back Office
8 7 (1.52%) Advertising
9 5 (1.08%) Billing
10 3 (0.65%) Games
10 3 (0.65%) Pharmaceutical
10 3 (0.65%) Public Sector
11 2 (0.43%) Electronics
11 2 (0.43%) Marketing
12 1 (0.22%) French Language
12 1 (0.22%) General Ledger
12 1 (0.22%) International Banking
12 1 (0.22%) Legal
Job Titles
1 98 (21.21%) Developer
2 97 (21.00%) DevOps Engineer
3 36 (7.79%) Analyst
4 35 (7.58%) Senior Developer
5 33 (7.14%) Network Engineer
6 30 (6.49%) Applications Support
7 24 (5.19%) AWS Engineer
7 24 (5.19%) Java Developer
8 23 (4.98%) Senior DevOps
8 23 (4.98%) Support Analyst
8 23 (4.98%) Support Engineer
9 22 (4.76%) Linux Engineer
10 19 (4.11%) Python Engineer
10 19 (4.11%) Senior DevOps Engineer
11 18 (3.90%) Administrator
12 17 (3.68%) Cloud Engineer
13 16 (3.46%) Applications Support Analyst
13 16 (3.46%) Python Developer
14 15 (3.25%) Infrastructure Engineer
14 15 (3.25%) Software Engineer
Libraries, Frameworks & Software Standards
1 40 (8.66%) .NET
2 32 (6.93%) Elastic Stack
3 28 (6.06%) React
4 27 (5.84%) Kafka
5 25 (5.41%) Web Services
6 22 (4.76%) Node.js
7 21 (4.55%) CSS
8 20 (4.33%) Vue.js
9 15 (3.25%) HTML
10 14 (3.03%) .NET Core
11 13 (2.81%) FIX Protocol
11 13 (2.81%) Pandas
11 13 (2.81%) Spring
11 13 (2.81%) XML
12 11 (2.38%) Django
13 10 (2.16%) WebSockets
14 9 (1.95%) Middleware
14 9 (1.95%) NumPy
14 9 (1.95%) SciPy
14 9 (1.95%) XSLT
Miscellaneous
1 40 (8.66%) Public Cloud
2 31 (6.71%) Analytical Skills
3 24 (5.19%) Data Centre
4 16 (3.46%) Greenfield Project
5 13 (2.81%) Derivative
5 13 (2.81%) Equities
6 12 (2.60%) Management Information System
7 11 (2.38%) Data Structures
7 11 (2.38%) Fixed Income
7 11 (2.38%) Private Cloud
8 10 (2.16%) Linux Command Line
8 10 (2.16%) Self-Motivation
9 9 (1.95%) Foreign Exchange (FX)
9 9 (1.95%) SWIFT
10 7 (1.52%) Mobile App
11 6 (1.30%) Cloud Native
11 6 (1.30%) Hedge funds
11 6 (1.30%) Video Conferencing
12 5 (1.08%) User Experience
13 4 (0.87%) Enterprise Software
Operating Systems
1 146 (31.60%) Windows
2 90 (19.48%) Unix
3 33 (7.14%) Windows Server
4 19 (4.11%) Red Hat Enterprise Linux
5 13 (2.81%) Android
6 11 (2.38%) Apple iOS
6 11 (2.38%) Windows 10
7 10 (2.16%) CentOS
7 10 (2.16%) Windows 7
8 9 (1.95%) Mac OS
8 9 (1.95%) Solaris
9 7 (1.52%) Ubuntu
10 6 (1.30%) Windows Server 2008
11 5 (1.08%) Windows Server 2012
12 3 (0.65%) Windows Server 2016
12 3 (0.65%) Windows XP
13 2 (0.43%) Debian
13 2 (0.43%) VMS
13 2 (0.43%) Windows Server 2019
14 1 (0.22%) FreeBSD
Processes & Methodologies
1 166 (35.93%) DevOps
2 108 (23.38%) Agile Software Development
3 53 (11.47%) Test Automation
4 47 (10.17%) Configuration Management
4 47 (10.17%) Software Engineering
5 45 (9.74%) Fintech
6 42 (9.09%) Infrastructure as Code
7 41 (8.87%) Site Reliability Engineering
8 40 (8.66%) Problem-Solving
9 34 (7.36%) Project Management
10 33 (7.14%) Infrastructure Engineering
10 33 (7.14%) Microservices
11 32 (6.93%) Continuous Integration
12 28 (6.06%) Mentoring
12 28 (6.06%) Scrum
13 26 (5.63%) TDD
14 25 (5.41%) Machine Learning
15 24 (5.19%) Analytics
15 24 (5.19%) ITIL
15 24 (5.19%) OO
Programming Languages
1 195 (42.21%) Python
2 124 (26.84%) Java
3 84 (18.18%) SQL
4 62 (13.42%) JavaScript
5 50 (10.82%) Bash Shell
5 50 (10.82%) C#
6 47 (10.17%) C++
7 39 (8.44%) PowerShell
8 38 (8.23%) PHP
9 32 (6.93%) Go
10 30 (6.49%) Perl
11 28 (6.06%) Ruby
12 20 (4.33%) Shell Script
13 16 (3.46%) C
14 12 (2.60%) Java 8
15 10 (2.16%) Scala
16 9 (1.95%) Groovy
16 9 (1.95%) T-SQL
17 6 (1.30%) VB.NET
17 6 (1.30%) VBA
Qualifications
1 32 (6.93%) Degree
2 21 (4.55%) Cisco Certification
3 13 (2.81%) CCNA
4 12 (2.60%) Computer Science Degree
5 9 (1.95%) CISM
5 9 (1.95%) CISSP
6 7 (1.52%) Microsoft Certification
7 6 (1.30%) CCIE
7 6 (1.30%) CCSA
7 6 (1.30%) JNCIA
7 6 (1.30%) RHCE
7 6 (1.30%) TOGAF Certification
8 5 (1.08%) CCNP
9 4 (0.87%) CCSP
9 4 (0.87%) MCP
10 3 (0.65%) GCFA
10 3 (0.65%) GCIA
10 3 (0.65%) GCIH
10 3 (0.65%) ISEB
10 3 (0.65%) MCSA
Quality Assurance & Compliance
1 18 (3.90%) SLA
2 8 (1.73%) GDPR
2 8 (1.73%) QA
3 7 (1.52%) ISO/IEC 27001
4 4 (0.87%) NIST
5 3 (0.65%) COBIT
6 1 (0.22%) FINRA
6 1 (0.22%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
6 1 (0.22%) PCI DSS
System Software
1 128 (27.71%) Docker
2 38 (8.23%) VMware Infrastructure
3 21 (4.55%) Active Directory
4 19 (4.11%) Hyper-V
5 8 (1.73%) Virtual Machines
6 6 (1.30%) Apache ZooKeeper
6 6 (1.30%) Virtual Servers
7 4 (0.87%) vSphere
8 2 (0.43%) Apache Flume
8 2 (0.43%) Firmware
8 2 (0.43%) LXC
8 2 (0.43%) Virtual Desktop
9 1 (0.22%) Cronacle
9 1 (0.22%) iptables
9 1 (0.22%) vCloud
9 1 (0.22%) Veritas Volume Manager
9 1 (0.22%) VMware ESXi
9 1 (0.22%) VMware Workstation
9 1 (0.22%) Xen
9 1 (0.22%) XenApp
Systems Management
1 120 (25.97%) Kubernetes
2 70 (15.15%) Ansible
3 67 (14.50%) Terraform
4 55 (11.90%) Puppet
5 34 (7.36%) Opscode Chef
6 20 (4.33%) Prometheus
7 16 (3.46%) Nagios
8 14 (3.03%) Grafana
9 13 (2.81%) Netcool
9 13 (2.81%) Opsview
10 12 (2.60%) Icinga
11 11 (2.38%) Salt
12 9 (1.95%) Marathon
12 9 (1.95%) Mesos
12 9 (1.95%) Packer
13 7 (1.52%) Consul
14 6 (1.30%) ZABBIX
15 5 (1.08%) SCCM
16 4 (0.87%) SCOM
17 3 (0.65%) NetBackup
Vendors
1 62 (13.42%) Microsoft
2 51 (11.04%) VMware
3 37 (8.01%) Oracle
4 30 (6.49%) Google
5 24 (5.19%) Cisco
5 24 (5.19%) Red Hat
6 17 (3.68%) HP
7 15 (3.25%) AppDynamics
8 14 (3.03%) Atlassian
8 14 (3.03%) Splunk
9 13 (2.81%) Dynatrace
9 13 (2.81%) IBM
9 13 (2.81%) SevOne
9 13 (2.81%) TOWER Software
10 12 (2.60%) F5
11 10 (2.16%) Apple
12 9 (1.95%) Salesforce.com
12 9 (1.95%) SaltStack
13 8 (1.73%) CheckPoint
14 7 (1.52%) Sybase