Period
to 2 April 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 2 April 2020 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
2 Apr 2020
Same period 2019 Same period 2018
Rank 19 19 17
Rank change year-on-year 0 -2 -4
Permanent jobs citing Linux 776 978 1,074
As % of all permanent jobs advertised in the City of London 8.93% 9.50% 10.01%
As % of the Operating Systems category 44.55% 41.83% 45.26%
Number of salaries quoted 669 898 1,007
Median annual salary £75,000 £70,000 £67,500
Median salary % change year-on-year +7.14% +3.70% +8.00%
10th Percentile £47,500 £42,500 £41,250
90th Percentile £115,000 £100,375 £94,550
Central London median annual salary £70,000 £70,000 £65,000
% change year-on-year - +7.69% +4.00%

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 1,742 2,338 2,373
As % of all permanent IT jobs advertised in the City of London 20.04% 22.71% 22.13%
Number of salaries quoted 1,497 2,083 2,154
Median annual salary £62,500 £60,000 £60,000
Median salary % change year-on-year +4.17% - +4.35%
10th Percentile £29,590 £30,000 £31,250
90th Percentile £94,250 £92,500 £87,500
Central London median annual salary £60,000 £60,000 £55,000
% change year-on-year - +9.09% -

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 2 April 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 2 April 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 -10 3 £45,000 -5.26%
Moorgate - 1 £75,000 -
Linux
Central London

For the 6 months to 2 April 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.

1 360 (46.39%) Python
2 300 (38.66%) Finance
3 261 (33.63%) DevOps
4 230 (29.64%) Windows
5 228 (29.38%) AWS
6 194 (25.00%) Java
7 177 (22.81%) Unix
8 171 (22.04%) Docker
9 163 (21.01%) SQL
10 150 (19.33%) Ansible
11 144 (18.56%) Agile Software Development
12 138 (17.78%) Bash Shell
13 132 (17.01%) Kubernetes
14 122 (15.72%) Azure
15 106 (13.66%) Git (software)
16 101 (13.02%) Jenkins
17 98 (12.63%) Software Engineering
17 98 (12.63%) C++
18 94 (12.11%) Terraform
19 91 (11.73%) JavaScript
20 85 (10.95%) Fintech
21 84 (10.82%) Puppet
22 83 (10.70%) GCP
23 81 (10.44%) PowerShell
24 80 (10.31%) Microsoft
24 80 (10.31%) Degree
24 80 (10.31%) Banking
25 76 (9.79%) Problem-Solving
26 73 (9.41%) Infrastructure as Code
27 72 (9.28%) JIRA

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 48 (6.19%) Apache
2 41 (5.28%) Tomcat
3 25 (3.22%) Confluence
4 20 (2.58%) Elasticsearch
5 17 (2.19%) IIS
6 15 (1.93%) nginx
7 14 (1.80%) MQSeries
8 12 (1.55%) OpenStack
9 10 (1.29%) Apache Spark
10 9 (1.16%) CMS
10 9 (1.16%) JBoss
11 8 (1.03%) Adobe Experience Manager
11 8 (1.03%) SharePoint
12 6 (0.77%) MS Exchange
13 4 (0.52%) WebSphere
14 3 (0.39%) LiveCycle
15 2 (0.26%) Apache Airflow
15 2 (0.26%) SharePoint Server
15 2 (0.26%) WebLogic
15 2 (0.26%) WordPress
Applications
1 18 (2.32%) Microsoft Excel
2 17 (2.19%) Microsoft Office
3 12 (1.55%) Microsoft PowerPoint
4 3 (0.39%) Acrobat
4 3 (0.39%) Adobe Illustrator
4 3 (0.39%) Gliffy
4 3 (0.39%) InDesign
4 3 (0.39%) MS Visio
4 3 (0.39%) Photoshop
5 1 (0.13%) Maya
5 1 (0.13%) NUKE
5 1 (0.13%) Spreadsheet
Business Applications
1 9 (1.16%) Salerio
2 7 (0.90%) R3 Corda
3 4 (0.52%) Eikon
4 3 (0.39%) Oracle Applications
5 2 (0.26%) Sentinel
6 1 (0.13%) Distributed Ledger
6 1 (0.13%) Oracle Cash Management
6 1 (0.13%) Oracle EBS
6 1 (0.13%) Oracle EBS R12
6 1 (0.13%) Oracle E-Business Tax
6 1 (0.13%) Oracle General Ledger
6 1 (0.13%) Oracle Internet Expenses
6 1 (0.13%) Oracle iProcurement
6 1 (0.13%) Oracle Payables
6 1 (0.13%) Oracle Receivables
Cloud Services
1 228 (29.38%) AWS
2 122 (15.72%) Azure
3 83 (10.70%) GCP
4 23 (2.96%) Office 365
5 21 (2.71%) SaaS
6 18 (2.32%) AWS CloudFormation
7 15 (1.93%) Slack
8 13 (1.68%) Datadog
9 10 (1.29%) IaaS
10 9 (1.16%) Amazon EC2
10 9 (1.16%) GitHub
11 8 (1.03%) Cloud Computing
12 7 (0.90%) Amazon ECS
12 7 (0.90%) Azure Stack
12 7 (0.90%) PaaS
13 6 (0.77%) Serverless
14 5 (0.64%) Amazon S3
14 5 (0.64%) Heroku
15 4 (0.52%) CloudBees
15 4 (0.52%) DigitalOcean
Communications & Networking
1 65 (8.38%) Firewall
2 54 (6.96%) TCP/IP
3 29 (3.74%) DNS
4 18 (2.32%) SAN
5 17 (2.19%) Wireshark
6 16 (2.06%) HTTP
7 13 (1.68%) DHCP
7 13 (1.68%) LAN
7 13 (1.68%) WAN
8 12 (1.55%) Network Security
9 11 (1.42%) Intrusion Detection
9 11 (1.42%) IPsec
10 9 (1.16%) BGP
10 9 (1.16%) Internet
10 9 (1.16%) OSPF
10 9 (1.16%) SSL
10 9 (1.16%) VPN
11 8 (1.03%) Cisco ISE
11 8 (1.03%) SNMP
12 6 (0.77%) SDH
Database & Business Intelligence
1 58 (7.47%) PostgreSQL
2 41 (5.28%) SQL Server
3 38 (4.90%) MySQL
4 37 (4.77%) Relational Database
5 33 (4.25%) NoSQL
6 29 (3.74%) Blockchain
7 27 (3.48%) Big Data
8 24 (3.09%) InfluxDB
8 24 (3.09%) Redis
9 20 (2.58%) MongoDB
10 19 (2.45%) RDBMS
11 16 (2.06%) Oracle Database
12 14 (1.80%) Apache Cassandra
13 13 (1.68%) Oracle Database 12c
14 12 (1.55%) Hadoop
14 12 (1.55%) HBase
15 11 (1.42%) KDB
16 8 (1.03%) MariaDB
17 6 (0.77%) OpenTSDB
18 5 (0.64%) Amazon RDS
Development Applications
1 106 (13.66%) Git (software)
2 101 (13.02%) Jenkins
3 72 (9.28%) JIRA
4 27 (3.48%) Bitbucket
5 21 (2.71%) git-flow
6 20 (2.58%) Sonatype Nexus
7 19 (2.45%) Artifactory
8 17 (2.19%) RSpec
9 15 (1.93%) Maven
9 15 (1.93%) TeamCity
10 12 (1.55%) GitLab
10 12 (1.55%) Vagrant
11 10 (1.29%) Subversion
12 9 (1.16%) Octopus Deploy
13 8 (1.03%) Selenium
13 8 (1.03%) SonarQube
14 7 (0.90%) JUnit
15 6 (0.77%) Oracle APEX
15 6 (0.77%) Visual Studio
15 6 (0.77%) WebDriver
General
1 300 (38.66%) Finance
2 80 (10.31%) Banking
3 30 (3.87%) Front Office
4 28 (3.61%) Financial Institution
5 21 (2.71%) Retail
6 15 (1.93%) Games
6 15 (1.93%) Investment Banking
7 12 (1.55%) Back Office
7 12 (1.55%) Marketing
8 9 (1.16%) Advertising
8 9 (1.16%) Law
8 9 (1.16%) Telecoms
9 6 (0.77%) Public Sector
10 4 (0.52%) Billing
10 4 (0.52%) French Language
11 3 (0.39%) Legal
11 3 (0.39%) Manufacturing
12 2 (0.26%) Automotive
12 2 (0.26%) Digital Economy
13 1 (0.13%) Publishing
Job Titles
1 192 (24.74%) Developer
2 131 (16.88%) DevOps Engineer
3 66 (8.51%) Analyst
4 55 (7.09%) Java Developer
5 49 (6.31%) Applications Support
6 47 (6.06%) Support Engineer
7 42 (5.41%) Linux Engineer
8 41 (5.28%) Senior Developer
9 39 (5.03%) Software Engineer
10 38 (4.90%) Python Developer
11 37 (4.77%) Support Analyst
12 34 (4.38%) C++ Developer
13 32 (4.12%) Cloud Engineer
13 32 (4.12%) Team Leader
14 31 (3.99%) Senior DevOps
15 28 (3.61%) Architect
16 27 (3.48%) Site Reliability Engineer
17 26 (3.35%) Senior DevOps Engineer
18 24 (3.09%) Python Engineer
19 23 (2.96%) Junior
Libraries, Frameworks & Software Standards
1 61 (7.86%) CSS
2 54 (6.96%) Elastic Stack
3 50 (6.44%) Kafka
4 47 (6.06%) HTML
5 44 (5.67%) Node.js
6 38 (4.90%) .NET
6 38 (4.90%) Web Services
7 37 (4.77%) Spring
8 32 (4.12%) Django
9 28 (3.61%) React
10 27 (3.48%) REST
11 24 (3.09%) XML
12 22 (2.84%) WebSockets
13 19 (2.45%) HTML5
13 19 (2.45%) Spring Boot
14 18 (2.32%) FIX Protocol
14 18 (2.32%) Middleware
14 18 (2.32%) Pandas
15 17 (2.19%) NumPy
15 17 (2.19%) SciPy
Miscellaneous
1 61 (7.86%) Public Cloud
2 52 (6.70%) Analytical Skills
3 49 (6.31%) Data Centre
4 40 (5.15%) Greenfield Project
4 40 (5.15%) Management Information System
5 32 (4.12%) Hedge funds
6 30 (3.87%) Self-Motivation
7 25 (3.22%) Fixed Income
8 22 (2.84%) Data Structures
9 20 (2.58%) Linux Command Line
10 17 (2.19%) Mobile App
11 16 (2.06%) Derivative
11 16 (2.06%) SWIFT
12 15 (1.93%) Equities
13 14 (1.80%) Algorithms
14 13 (1.68%) User Experience
15 12 (1.55%) Cyberthreat
16 10 (1.29%) Private Cloud
17 9 (1.16%) Foreign Exchange (FX)
18 8 (1.03%) Video Conferencing
Operating Systems
1 230 (29.64%) Windows
2 177 (22.81%) Unix
3 54 (6.96%) CentOS
4 43 (5.54%) Windows Server
5 42 (5.41%) Red Hat Enterprise Linux
6 30 (3.87%) Apple iOS
7 29 (3.74%) Android
8 21 (2.71%) Windows 7
9 20 (2.58%) Ubuntu
10 16 (2.06%) Windows 10
11 12 (1.55%) Windows Server 2008
12 7 (0.90%) Solaris
13 5 (0.64%) Windows Server 2012
14 4 (0.52%) Debian
14 4 (0.52%) Mac OS
14 4 (0.52%) Windows Server 2016
15 2 (0.26%) Oracle Linux
16 1 (0.13%) Kali Linux
16 1 (0.13%) Mac OS X
16 1 (0.13%) Windows Server 2003
Processes & Methodologies
1 261 (33.63%) DevOps
2 144 (18.56%) Agile Software Development
3 98 (12.63%) Software Engineering
4 85 (10.95%) Fintech
5 76 (9.79%) Problem-Solving
6 73 (9.41%) Infrastructure as Code
7 69 (8.89%) Continuous Integration
8 68 (8.76%) Test Automation
9 67 (8.63%) Configuration Management
10 62 (7.99%) Computer Science
10 62 (7.99%) OO
11 54 (6.96%) Site Reliability Engineering
12 53 (6.83%) Open Source
13 51 (6.57%) Infrastructure Engineering
14 47 (6.06%) Project Management
15 46 (5.93%) Analytics
15 46 (5.93%) Infrastructure Automation
16 40 (5.15%) Scrum
17 38 (4.90%) Low Latency
17 38 (4.90%) Mentoring
Programming Languages
1 360 (46.39%) Python
2 194 (25.00%) Java
3 163 (21.01%) SQL
4 138 (17.78%) Bash Shell
5 98 (12.63%) C++
6 91 (11.73%) JavaScript
7 81 (10.44%) PowerShell
8 66 (8.51%) C#
9 44 (5.67%) Ruby
10 35 (4.51%) Perl
11 34 (4.38%) PHP
12 25 (3.22%) Shell Script
13 24 (3.09%) C
13 24 (3.09%) Go
14 21 (2.71%) Java 8
15 16 (2.06%) PL/SQL
16 14 (1.80%) Groovy
17 12 (1.55%) Korn
17 12 (1.55%) T-SQL
18 11 (1.42%) VBA
Qualifications
1 80 (10.31%) Degree
2 32 (4.12%) Computer Science Degree
3 31 (3.99%) Cisco Certification
4 19 (2.45%) CCNA
5 15 (1.93%) Microsoft Certification
6 14 (1.80%) CISSP
7 13 (1.68%) CISM
8 10 (1.29%) CCIE
9 9 (1.16%) CCNP
9 9 (1.16%) MCP
9 9 (1.16%) MCSA
10 8 (1.03%) Master's Degree
11 6 (0.77%) AWS Certification
11 6 (0.77%) CCSA
11 6 (0.77%) CEH
11 6 (0.77%) JNCIA
11 6 (0.77%) Numerate Degree
11 6 (0.77%) Security Cleared
11 6 (0.77%) TOGAF Certification
12 5 (0.64%) OSCP
Quality Assurance & Compliance
1 37 (4.77%) QA
2 18 (2.32%) SLA
3 10 (1.29%) PCI DSS
4 9 (1.16%) GDPR
4 9 (1.16%) ISO/IEC 27001
5 2 (0.26%) Data Quality
5 2 (0.26%) FINRA
6 1 (0.13%) ISO/IEC 20000
6 1 (0.13%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
6 1 (0.13%) NIST
System Software
1 171 (22.04%) Docker
2 42 (5.41%) VMware Infrastructure
3 30 (3.87%) Active Directory
4 22 (2.84%) Virtual Machines
5 20 (2.58%) Apache ZooKeeper
6 13 (1.68%) Firmware
7 11 (1.42%) Hyper-V
8 8 (1.03%) Xen
9 7 (0.90%) KVM
10 5 (0.64%) VMware ESXi
10 5 (0.64%) vSphere
11 4 (0.52%) NFS
11 4 (0.52%) VMware Workstation
12 2 (0.26%) Apache Flume
12 2 (0.26%) HDFS
12 2 (0.26%) LXC
12 2 (0.26%) Virtual Servers
13 1 (0.13%) ACF2
13 1 (0.13%) OpenAM
13 1 (0.13%) vCloud
Systems Management
1 150 (19.33%) Ansible
2 132 (17.01%) Kubernetes
3 94 (12.11%) Terraform
4 84 (10.82%) Puppet
5 62 (7.99%) Opscode Chef
6 43 (5.54%) Grafana
7 40 (5.15%) Salt
8 39 (5.03%) Packer
9 31 (3.99%) Prometheus
10 18 (2.32%) Consul
10 18 (2.32%) Icinga
11 16 (2.06%) Nagios
12 10 (1.29%) SCCM
13 8 (1.03%) Graphite
13 8 (1.03%) Kibana
14 7 (0.90%) Data Guard
14 7 (0.90%) Marathon
14 7 (0.90%) Mesos
14 7 (0.90%) Oracle Enterprise Manager
15 6 (0.77%) Oracle RMAN
Vendors
1 80 (10.31%) Microsoft
2 66 (8.51%) VMware
3 64 (8.25%) Red Hat
4 63 (8.12%) Oracle
5 42 (5.41%) Google
6 32 (4.12%) Cisco
7 22 (2.84%) Atlassian
8 21 (2.71%) Sybase
9 15 (1.93%) Bloomberg
9 15 (1.93%) Reuters
9 15 (1.93%) Sun
10 12 (1.55%) Adobe
10 12 (1.55%) IBM
10 12 (1.55%) ServiceNow
11 11 (1.42%) Citrix
11 11 (1.42%) Splunk
12 10 (1.29%) F5
12 10 (1.29%) Veeam
13 9 (1.16%) Juniper
13 9 (1.16%) NetApp