Period
to 16 November 2019

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 16 November 2019 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
16 Nov 2019
Same period 2018 Same period 2017
Rank 21 19 16
Rank change year-on-year -2 -3 0
Permanent jobs citing Linux 913 1,186 1,107
As % of all permanent IT jobs advertised in the City of London 9.15% 10.62% 10.84%
As % of the Operating Systems category 40.38% 46.56% 46.53%
Number of salaries quoted 731 1,052 1,017
City of London median annual salary £75,000 £70,000 £61,000
Median salary % change year-on-year +7.14% +14.75% +1.67%
10th Percentile £45,000 £42,500 £36,250
90th Percentile £115,000 £95,000 £95,000
Central London median annual salary £72,500 £67,500 £60,000
% change year-on-year +7.41% +12.50% -

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 2,261 2,547 2,379
As % of all permanent IT jobs advertised in the City of London 22.65% 22.81% 23.30%
Number of salaries quoted 1,902 2,248 2,152
City of London median annual salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09% -
10th Percentile £28,275 £28,500 £31,000
90th Percentile £96,250 £92,500 £86,250
Central London median annual salary £60,000 £59,000 £55,000
% change year-on-year +1.69% +7.27% -

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
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT 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

The salary distribution of IT jobs citing Linux in the City of London over the 6 months to 16 November 2019.

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 16 November 2019. 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 -17 3 £45,000 -10.00%
Linux
Central London

For the 6 months to 16 November 2019, 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.

1 458 (50.16%) Python
2 343 (37.57%) Finance
3 339 (37.13%) AWS
4 306 (33.52%) DevOps
5 273 (29.90%) Docker
6 256 (28.04%) Unix
7 253 (27.71%) Windows
8 204 (22.34%) Java
9 196 (21.47%) Agile Software Development
10 191 (20.92%) Kubernetes
11 179 (19.61%) SQL
12 177 (19.39%) Bash Shell
13 176 (19.28%) Ansible
14 156 (17.09%) Azure
15 153 (16.76%) Terraform
16 143 (15.66%) Degree
17 136 (14.90%) GCP
18 119 (13.03%) Computer Science
19 118 (12.92%) Software Engineering
20 111 (12.16%) Problem-Solving
21 109 (11.94%) C++
22 106 (11.61%) Jenkins
23 104 (11.39%) C#
24 101 (11.06%) JavaScript
24 101 (11.06%) Fintech
25 100 (10.95%) PostgreSQL
26 98 (10.73%) Puppet
27 94 (10.30%) Git (software)
27 94 (10.30%) Banking
28 91 (9.97%) MySQL

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 39 (4.27%) Apache
2 23 (2.52%) Confluence
3 22 (2.41%) Apache Spark
3 22 (2.41%) nginx
4 21 (2.30%) Elasticsearch
5 18 (1.97%) OpenStack
6 15 (1.64%) IIS
7 12 (1.31%) Tomcat
8 10 (1.10%) Cloud Foundry
9 7 (0.77%) MS Exchange
10 6 (0.66%) Apache Airflow
11 5 (0.55%) Luigi
12 4 (0.44%) SharePoint
13 3 (0.33%) MQSeries
13 3 (0.33%) WebSphere
14 2 (0.22%) CMS
15 1 (0.11%) Oracle Coherence
15 1 (0.11%) SharePoint 2010
15 1 (0.11%) SharePoint 2013
15 1 (0.11%) WordPress
Applications
1 12 (1.31%) Microsoft Office
2 5 (0.55%) Microsoft Excel
3 2 (0.22%) Spreadsheet
Business Applications
1 3 (0.33%) R3 Corda
1 3 (0.33%) SnowdropKCS
2 1 (0.11%) FINCAD Analytics
2 1 (0.11%) Shopify
Cloud Services
1 339 (37.13%) AWS
2 156 (17.09%) Azure
3 136 (14.90%) GCP
4 33 (3.61%) AWS CloudFormation
5 22 (2.41%) Datadog
5 22 (2.41%) SaaS
6 20 (2.19%) GitHub
7 18 (1.97%) Serverless
8 15 (1.64%) Amazon ECS
8 15 (1.64%) Office 365
9 14 (1.53%) AWS Lambda
10 13 (1.42%) Cloud Computing
11 12 (1.31%) IaaS
11 12 (1.31%) OpenShift
12 10 (1.10%) Heroku
12 10 (1.10%) PaaS
13 9 (0.99%) Amazon CloudWatch
13 9 (0.99%) Amazon EC2
13 9 (0.99%) Amazon S3
13 9 (0.99%) Virtual Private Cloud
Communications & Networking
1 58 (6.35%) TCP/IP
2 49 (5.37%) Firewall
3 40 (4.38%) DNS
4 38 (4.16%) HTTP
5 31 (3.40%) Intrusion Detection
5 31 (3.40%) SAN
6 22 (2.41%) DHCP
7 19 (2.08%) LAN
8 17 (1.86%) HTTPS
8 17 (1.86%) WAN
9 15 (1.64%) IPsec
9 15 (1.64%) Network Security
9 15 (1.64%) VPN
10 12 (1.31%) Internet
11 9 (0.99%) SSL
12 8 (0.88%) Software-Defined Networking
13 7 (0.77%) NAS
13 7 (0.77%) Wireless
14 6 (0.66%) BGP
15 5 (0.55%) VoIP
Database & Business Intelligence
1 100 (10.95%) PostgreSQL
2 91 (9.97%) MySQL
3 63 (6.90%) NoSQL
4 61 (6.68%) SQL Server
5 59 (6.46%) Big Data
6 47 (5.15%) Oracle Database
7 42 (4.60%) Relational Database
8 38 (4.16%) Apache Cassandra
9 30 (3.29%) Oracle Database 12c
10 25 (2.74%) Blockchain
10 25 (2.74%) Hadoop
11 22 (2.41%) KDB
12 19 (2.08%) Redis
13 18 (1.97%) Apache Hive
14 16 (1.75%) MongoDB
15 12 (1.31%) BigQuery
16 11 (1.20%) InfluxDB
17 10 (1.10%) Data Mining
17 10 (1.10%) Data Warehouse
17 10 (1.10%) HBase
Development Applications
1 106 (11.61%) Jenkins
2 94 (10.30%) Git (software)
3 43 (4.71%) JIRA
4 26 (2.85%) Bitbucket
5 19 (2.08%) Maven
5 19 (2.08%) TeamCity
6 17 (1.86%) Subversion
7 14 (1.53%) GitLab
8 12 (1.31%) Visual Studio
9 11 (1.20%) Cucumber
9 11 (1.20%) Vagrant
10 9 (0.99%) Octopus Deploy
10 9 (0.99%) Selenium
11 7 (0.77%) Artifactory
11 7 (0.77%) CF BOSH
11 7 (0.77%) git-flow
11 7 (0.77%) Jasmine
11 7 (0.77%) JUnit
11 7 (0.77%) webpack
12 6 (0.66%) Atlassian Bamboo
General
1 343 (37.57%) Finance
2 94 (10.30%) Banking
3 33 (3.61%) Investment Banking
4 32 (3.50%) Front Office
5 27 (2.96%) Telecoms
6 26 (2.85%) Retail
7 21 (2.30%) Advertising
8 19 (2.08%) Marketing
9 13 (1.42%) Financial Institution
10 11 (1.20%) Games
11 10 (1.10%) Back Office
12 9 (0.99%) Public Sector
13 8 (0.88%) Law
14 7 (0.77%) Publishing
15 4 (0.44%) Legal
15 4 (0.44%) Manufacturing
16 3 (0.33%) Electronics
16 3 (0.33%) International Banking
16 3 (0.33%) Pharmaceutical
17 2 (0.22%) Retail Banking
Job Titles
1 219 (23.99%) Developer
2 199 (21.80%) DevOps Engineer
3 84 (9.20%) Linux Engineer
4 83 (9.09%) AWS Engineer
5 73 (8.00%) AWS DevOps
6 69 (7.56%) AWS DevOps Engineer
7 67 (7.34%) Python Engineer
8 62 (6.79%) Senior Developer
9 58 (6.35%) Python Developer
10 57 (6.24%) Linux/Unix DevOps
11 56 (6.13%) Cloud Engineer
11 56 (6.13%) Software Engineer
12 54 (5.91%) Analyst
12 54 (5.91%) Linux DevOps Engineer
13 52 (5.70%) Senior DevOps
13 52 (5.70%) Senior DevOps Engineer
14 49 (5.37%) Java Developer
15 47 (5.15%) Kubernetes Engineer
16 42 (4.60%) Architect
17 41 (4.49%) Support Engineer
Libraries, Frameworks & Software Standards
1 83 (9.09%) Node.js
2 66 (7.23%) Kafka
3 54 (5.91%) React
4 51 (5.59%) HTML
5 50 (5.48%) .NET
5 50 (5.48%) Spring
6 46 (5.04%) Web Services
7 42 (4.60%) CSS
7 42 (4.60%) Elastic Stack
8 32 (3.50%) Django
8 32 (3.50%) REST
9 30 (3.29%) AngularJS
9 30 (3.29%) FIX Protocol
9 30 (3.29%) Spring Boot
9 30 (3.29%) XML
10 25 (2.74%) RabbitMQ
11 21 (2.30%) HTML5
12 19 (2.08%) jQuery
12 19 (2.08%) LAMP
13 17 (1.86%) XSLT
Miscellaneous
1 71 (7.78%) Analytical Skills
2 61 (6.68%) Hedge funds
3 55 (6.02%) Greenfield Project
4 51 (5.59%) Self-Motivation
5 48 (5.26%) Fixed Income
6 39 (4.27%) Algorithms
7 36 (3.94%) Data Centre
8 34 (3.72%) Public Cloud
9 29 (3.18%) Management Information System
10 21 (2.30%) Equities
10 21 (2.30%) Linux Command Line
11 18 (1.97%) Derivative
11 18 (1.97%) User Experience
12 17 (1.86%) Cyberthreat
13 16 (1.75%) Data Structures
13 16 (1.75%) Video\Live Streaming
14 11 (1.20%) Foreign Exchange (FX)
14 11 (1.20%) Virtual Team
15 9 (0.99%) Enterprise Software
16 8 (0.88%) Security Operations Centre
Operating Systems
1 256 (28.04%) Unix
2 253 (27.71%) Windows
3 59 (6.46%) Windows Server
4 32 (3.50%) Red Hat Enterprise Linux
5 28 (3.07%) CentOS
6 26 (2.85%) Ubuntu
7 20 (2.19%) Mac OS
7 20 (2.19%) Solaris
8 13 (1.42%) Windows Server 2012
9 11 (1.20%) Windows Server 2008
10 9 (0.99%) Apple iOS
11 8 (0.88%) Windows 10
12 7 (0.77%) Android
13 6 (0.66%) Debian
14 4 (0.44%) Data ONTAP
14 4 (0.44%) Mac OS X
14 4 (0.44%) Windows Server 2003
15 2 (0.22%) Fedora
16 1 (0.11%) VyOS
16 1 (0.11%) zOS
Processes & Methodologies
1 306 (33.52%) DevOps
2 196 (21.47%) Agile Software Development
3 119 (13.03%) Computer Science
4 118 (12.92%) Software Engineering
5 111 (12.16%) Problem-Solving
6 101 (11.06%) Fintech
7 90 (9.86%) Microservices
8 80 (8.76%) OO
9 79 (8.65%) Low Latency
10 75 (8.21%) Continuous Integration
11 71 (7.78%) Infrastructure as Code
11 71 (7.78%) Machine Learning
12 68 (7.45%) Data Science
13 67 (7.34%) Open Source
14 64 (7.01%) Test Automation
15 63 (6.90%) SDLC
16 61 (6.68%) Configuration Management
17 58 (6.35%) Analytics
18 53 (5.81%) Cybersecurity
18 53 (5.81%) Risk Management
Programming Languages
1 458 (50.16%) Python
2 204 (22.34%) Java
3 179 (19.61%) SQL
4 177 (19.39%) Bash Shell
5 109 (11.94%) C++
6 104 (11.39%) C#
7 101 (11.06%) JavaScript
8 69 (7.56%) Ruby
9 48 (5.26%) PowerShell
10 43 (4.71%) Shell Script
11 41 (4.49%) Go
12 37 (4.05%) Perl
13 32 (3.50%) TypeScript
14 28 (3.07%) Java 8
15 25 (2.74%) PHP
16 17 (1.86%) C
17 15 (1.64%) Scala
18 13 (1.42%) Bourne shell
18 13 (1.42%) C-shell
18 13 (1.42%) Korn
Qualifications
1 143 (15.66%) Degree
2 50 (5.48%) Computer Science Degree
3 23 (2.52%) Master's Degree
4 14 (1.53%) Cisco Certification
4 14 (1.53%) CISSP
5 13 (1.42%) Security Cleared
6 12 (1.31%) Microsoft Certification
7 11 (1.20%) VMware Certified Professional (VCP)
8 9 (0.99%) CCNP
9 8 (0.88%) CCNA
9 8 (0.88%) RHCE
10 6 (0.66%) SC Cleared
11 5 (0.55%) MCSE
12 4 (0.44%) CISM
12 4 (0.44%) MCP
12 4 (0.44%) RHCSA
12 4 (0.44%) TOGAF Certification
13 3 (0.33%) CISA
13 3 (0.33%) GIAC
13 3 (0.33%) MCSD
Quality Assurance & Compliance
1 79 (8.65%) QA
2 26 (2.85%) SLA
3 15 (1.64%) GDPR
4 9 (0.99%) ISO/IEC 27001
5 7 (0.77%) Data Quality
6 5 (0.55%) PCI DSS
7 3 (0.33%) MiFID
8 2 (0.22%) ISO/IEC 20000
8 2 (0.22%) NIST
9 1 (0.11%) Cyber Essentials
System Software
1 273 (29.90%) Docker
2 41 (4.49%) Active Directory
3 34 (3.72%) VMware Infrastructure
4 19 (2.08%) vSphere
5 15 (1.64%) Hyper-V
6 13 (1.42%) KVM
7 11 (1.20%) Xen
8 9 (0.99%) Apache ZooKeeper
8 9 (0.99%) HDFS
8 9 (0.99%) Virtual Machines
9 8 (0.88%) Cronacle
10 7 (0.77%) Veritas File System
10 7 (0.77%) Veritas Volume Manager
11 6 (0.66%) Varnish
11 6 (0.66%) VMware ESXi
11 6 (0.66%) VMware NSX
12 5 (0.55%) Firmware
12 5 (0.55%) NFS
12 5 (0.55%) XenApp
13 4 (0.44%) VMware Workstation
Systems Management
1 191 (20.92%) Kubernetes
2 176 (19.28%) Ansible
3 153 (16.76%) Terraform
4 98 (10.73%) Puppet
5 69 (7.56%) Opscode Chef
6 25 (2.74%) Salt
7 22 (2.41%) Prometheus
8 20 (2.19%) Packer
9 19 (2.08%) Grafana
10 14 (1.53%) Kibana
11 8 (0.88%) Nagios
12 7 (0.77%) ITRS Geneos
12 7 (0.77%) Mesos
13 6 (0.66%) Oozie
13 6 (0.66%) QRadar
14 4 (0.44%) Data Guard
14 4 (0.44%) Graphite
14 4 (0.44%) Oracle Enterprise Manager
14 4 (0.44%) Red Hat Satellite
14 4 (0.44%) Sysdig
Vendors
1 84 (9.20%) Oracle
2 77 (8.43%) VMware
3 64 (7.01%) Google
4 60 (6.57%) Red Hat
5 53 (5.81%) Microsoft
6 44 (4.82%) Cisco
7 24 (2.63%) Sybase
8 18 (1.97%) Splunk
9 14 (1.53%) CyberArk
9 14 (1.53%) Salesforce.com
10 12 (1.31%) Reuters
11 11 (1.20%) Citrix
12 10 (1.10%) Atlassian
12 10 (1.10%) IBM
12 10 (1.10%) Zend
13 9 (0.99%) New Relic
13 9 (0.99%) Remedy
13 9 (0.99%) ServiceNow
13 9 (0.99%) Veritas
14 8 (0.88%) Juniper