Period
to 17 January 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 17 January 2020 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
17 Jan 2020
Same period 2019 Same period 2018
Rank 22 21 17
Rank change year-on-year -1 -4 -2
Permanent jobs citing Linux 788 1,040 1,053
As % of all permanent IT jobs advertised in the City of London 8.60% 10.15% 10.17%
As % of the Operating Systems category 40.70% 45.20% 45.47%
Number of salaries quoted 630 895 960
City of London median annual salary £75,000 £70,000 £62,500
Median salary % change year-on-year +7.14% +12.00% -
10th Percentile £45,000 £41,250 £37,500
90th Percentile £120,000 £96,250 £93,750
Central London median annual salary £75,000 £70,000 £62,500
% change year-on-year +7.14% +12.00% +4.17%

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 1,936 2,301 2,316
As % of all permanent IT jobs advertised in the City of London 21.13% 22.46% 22.37%
Number of salaries quoted 1,623 2,029 2,115
City of London median annual salary £60,000 £60,000 £56,000
Median salary % change year-on-year - +7.14% -2.61%
10th Percentile £27,500 £30,700 £31,250
90th Percentile £97,500 £93,750 £85,000
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 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 17 January 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 17 January 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 £45,000 -10.00% 1
Linux
Central London

For the 6 months to 17 January 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.

1 401 (50.89%) Python
2 315 (39.97%) Finance
3 241 (30.58%) AWS
4 228 (28.93%) DevOps
5 220 (27.92%) Unix
6 219 (27.79%) Windows
7 192 (24.37%) Java
8 183 (23.22%) SQL
9 169 (21.45%) Docker
10 159 (20.18%) Agile Software Development
11 152 (19.29%) Bash Shell
12 135 (17.13%) Ansible
13 119 (15.10%) Kubernetes
14 117 (14.85%) Degree
15 113 (14.34%) Azure
16 112 (14.21%) Software Engineering
17 109 (13.83%) C++
18 104 (13.20%) Computer Science
19 102 (12.94%) Jenkins
20 101 (12.82%) Fintech
21 100 (12.69%) Problem-Solving
22 93 (11.80%) JavaScript
23 90 (11.42%) Git (software)
24 88 (11.17%) Banking
25 87 (11.04%) Terraform
26 84 (10.66%) GCP
27 83 (10.53%) Oracle
28 81 (10.28%) PostgreSQL
29 79 (10.03%) Continuous Integration
30 78 (9.90%) OO

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 42 (5.33%) Apache
2 20 (2.54%) IIS
2 20 (2.54%) Tomcat
3 19 (2.41%) Apache Spark
3 19 (2.41%) Elasticsearch
3 19 (2.41%) nginx
4 13 (1.65%) OpenStack
5 9 (1.14%) MQSeries
6 8 (1.02%) Confluence
7 7 (0.89%) MS Exchange
8 5 (0.63%) Apache Airflow
8 5 (0.63%) JBoss
8 5 (0.63%) SharePoint
9 4 (0.51%) Luigi
9 4 (0.51%) WebSphere
10 3 (0.38%) CMS
10 3 (0.38%) LiveCycle
11 2 (0.25%) Adobe Experience Manager
11 2 (0.25%) WebLogic
11 2 (0.25%) WebSphere Application Server
Applications
1 6 (0.76%) Microsoft Excel
2 4 (0.51%) Microsoft Office
3 3 (0.38%) Acrobat
3 3 (0.38%) Adobe Illustrator
3 3 (0.38%) InDesign
3 3 (0.38%) Photoshop
4 2 (0.25%) Spreadsheet
5 1 (0.13%) Maya
5 1 (0.13%) Microsoft PowerPoint
5 1 (0.13%) NUKE
Business Applications
1 6 (0.76%) R3 Corda
2 5 (0.63%) Salerio
3 3 (0.38%) Eikon
3 3 (0.38%) SnowdropKCS
4 1 (0.13%) FINCAD Analytics
4 1 (0.13%) Shopify
Cloud Services
1 241 (30.58%) AWS
2 113 (14.34%) Azure
3 84 (10.66%) GCP
4 28 (3.55%) AWS CloudFormation
5 23 (2.92%) SaaS
6 14 (1.78%) Datadog
6 14 (1.78%) GitHub
6 14 (1.78%) Office 365
6 14 (1.78%) Slack
7 10 (1.27%) Cloud Computing
7 10 (1.27%) Serverless
8 9 (1.14%) IaaS
9 8 (1.02%) Amazon S3
10 7 (0.89%) AWS Lambda
11 6 (0.76%) Azure Stack
12 5 (0.63%) Amazon ECS
12 5 (0.63%) Amazon EMR
12 5 (0.63%) G Suite
12 5 (0.63%) Linode
12 5 (0.63%) Trello
Communications & Networking
1 54 (6.85%) Firewall
2 49 (6.22%) TCP/IP
3 30 (3.81%) DNS
4 24 (3.05%) HTTP
5 21 (2.66%) DHCP
6 20 (2.54%) SAN
7 19 (2.41%) LAN
8 18 (2.28%) Intrusion Detection
9 16 (2.03%) WAN
10 15 (1.90%) IPsec
11 14 (1.78%) Network Security
11 14 (1.78%) VPN
12 12 (1.52%) Internet
13 11 (1.40%) BGP
13 11 (1.40%) SSL
14 9 (1.14%) HTTPS
14 9 (1.14%) OSPF
15 8 (1.02%) MPLS
16 7 (0.89%) VLAN
16 7 (0.89%) Wireshark
Database & Business Intelligence
1 81 (10.28%) PostgreSQL
2 70 (8.88%) MySQL
3 50 (6.35%) SQL Server
4 46 (5.84%) Oracle Database
5 44 (5.58%) Relational Database
6 43 (5.46%) NoSQL
7 39 (4.95%) Big Data
8 33 (4.19%) Apache Cassandra
9 30 (3.81%) Oracle Database 12c
10 25 (3.17%) Blockchain
11 24 (3.05%) Redis
12 23 (2.92%) MongoDB
13 22 (2.79%) KDB
14 21 (2.66%) InfluxDB
15 20 (2.54%) Hadoop
16 15 (1.90%) Apache Hive
17 14 (1.78%) RDBMS
18 12 (1.52%) HBase
19 10 (1.27%) Data Mining
20 7 (0.89%) BigQuery
Development Applications
1 102 (12.94%) Jenkins
2 90 (11.42%) Git (software)
3 44 (5.58%) JIRA
4 18 (2.28%) Bitbucket
5 17 (2.16%) TeamCity
6 15 (1.90%) Artifactory
7 13 (1.65%) GitLab
7 13 (1.65%) Vagrant
8 12 (1.52%) Subversion
9 9 (1.14%) Octopus Deploy
9 9 (1.14%) Selenium
9 9 (1.14%) Sonatype Nexus
10 8 (1.02%) git-flow
10 8 (1.02%) JUnit
10 8 (1.02%) Maven
11 7 (0.89%) RSpec
12 6 (0.76%) Cucumber
12 6 (0.76%) Oracle APEX
12 6 (0.76%) Visual Studio
13 5 (0.63%) Protractor
General
1 315 (39.97%) Finance
2 88 (11.17%) Banking
3 34 (4.31%) Front Office
4 22 (2.79%) Investment Banking
5 19 (2.41%) Advertising
5 19 (2.41%) Games
6 16 (2.03%) Financial Institution
6 16 (2.03%) Marketing
7 13 (1.65%) Telecoms
8 12 (1.52%) Law
8 12 (1.52%) Retail
9 9 (1.14%) Back Office
10 6 (0.76%) Public Sector
10 6 (0.76%) Publishing
11 4 (0.51%) French Language
12 3 (0.38%) International Banking
12 3 (0.38%) Legal
12 3 (0.38%) Pharmaceutical
13 2 (0.25%) Electronics
13 2 (0.25%) Manufacturing
Job Titles
1 205 (26.02%) Developer
2 121 (15.36%) DevOps Engineer
3 61 (7.74%) Python Developer
4 56 (7.11%) Analyst
5 49 (6.22%) Software Engineer
6 48 (6.09%) Java Developer
6 48 (6.09%) Senior Developer
6 48 (6.09%) Support Engineer
7 41 (5.20%) Linux Engineer
8 39 (4.95%) Applications Support
9 38 (4.82%) C++ Developer
10 33 (4.19%) Senior DevOps
10 33 (4.19%) Senior DevOps Engineer
11 31 (3.93%) AWS Engineer
12 29 (3.68%) Cloud Engineer
12 29 (3.68%) Junior
12 29 (3.68%) Team Leader
13 28 (3.55%) Python Engineer
14 26 (3.30%) Architect
14 26 (3.30%) Data Engineer
Libraries, Frameworks & Software Standards
1 69 (8.76%) Kafka
2 55 (6.98%) Node.js
3 53 (6.73%) CSS
4 52 (6.60%) HTML
5 48 (6.09%) Spring
6 45 (5.71%) React
7 42 (5.33%) Web Services
8 39 (4.95%) Django
9 38 (4.82%) Elastic Stack
9 38 (4.82%) REST
10 35 (4.44%) XML
11 33 (4.19%) .NET
12 32 (4.06%) Spring Boot
13 25 (3.17%) FIX Protocol
14 23 (2.92%) AngularJS
14 23 (2.92%) HTML5
15 22 (2.79%) XSLT
16 18 (2.28%) RabbitMQ
17 17 (2.16%) Flask
18 16 (2.03%) jQuery
Miscellaneous
1 66 (8.38%) Analytical Skills
2 57 (7.23%) Hedge funds
3 49 (6.22%) Greenfield Project
4 44 (5.58%) Fixed Income
5 43 (5.46%) Public Cloud
6 39 (4.95%) Self-Motivation
7 36 (4.57%) Management Information System
8 35 (4.44%) Data Centre
9 30 (3.81%) Algorithms
10 21 (2.66%) Data Structures
10 21 (2.66%) Linux Command Line
11 20 (2.54%) Equities
12 15 (1.90%) User Experience
13 14 (1.78%) Cyberthreat
14 11 (1.40%) Derivative
15 9 (1.14%) Enterprise Software
16 8 (1.02%) Foreign Exchange (FX)
16 8 (1.02%) SWIFT
17 7 (0.89%) Mobile App
17 7 (0.89%) Mobile Banking
Operating Systems
1 220 (27.92%) Unix
2 219 (27.79%) Windows
3 45 (5.71%) CentOS
4 43 (5.46%) Windows Server
5 37 (4.70%) Red Hat Enterprise Linux
6 20 (2.54%) Solaris
7 17 (2.16%) Apple iOS
7 17 (2.16%) Ubuntu
8 15 (1.90%) Android
9 10 (1.27%) Mac OS
10 9 (1.14%) Windows 10
10 9 (1.14%) Windows Server 2008
11 8 (1.02%) Windows 7
12 5 (0.63%) Windows Server 2012
13 4 (0.51%) Debian
13 4 (0.51%) Mac OS X
13 4 (0.51%) Windows Server 2003
14 2 (0.25%) Fedora
14 2 (0.25%) Oracle Linux
15 1 (0.13%) zOS
Processes & Methodologies
1 228 (28.93%) DevOps
2 159 (20.18%) Agile Software Development
3 112 (14.21%) Software Engineering
4 104 (13.20%) Computer Science
5 101 (12.82%) Fintech
6 100 (12.69%) Problem-Solving
7 79 (10.03%) Continuous Integration
8 78 (9.90%) OO
9 69 (8.76%) Infrastructure as Code
10 65 (8.25%) Test Automation
11 58 (7.36%) Open Source
12 56 (7.11%) Low Latency
13 52 (6.60%) SDLC
14 48 (6.09%) Configuration Management
15 47 (5.96%) Microservices
16 46 (5.84%) Project Management
16 46 (5.84%) Site Reliability Engineering
17 45 (5.71%) Data Science
18 44 (5.58%) Analytics
19 42 (5.33%) Risk Management
Programming Languages
1 401 (50.89%) Python
2 192 (24.37%) Java
3 183 (23.22%) SQL
4 152 (19.29%) Bash Shell
5 109 (13.83%) C++
6 93 (11.80%) JavaScript
7 77 (9.77%) C#
8 62 (7.87%) PowerShell
9 50 (6.35%) Ruby
10 41 (5.20%) Shell Script
11 35 (4.44%) Perl
12 33 (4.19%) Go
13 27 (3.43%) Java 8
14 23 (2.92%) PHP
15 21 (2.66%) Korn
16 14 (1.78%) C
17 13 (1.65%) Bourne shell
17 13 (1.65%) C-shell
18 12 (1.52%) Scala
19 11 (1.40%) TypeScript
Qualifications
1 117 (14.85%) Degree
2 46 (5.84%) Computer Science Degree
3 20 (2.54%) Cisco Certification
4 18 (2.28%) Master's Degree
5 13 (1.65%) CISSP
6 12 (1.52%) CCNP
7 9 (1.14%) CCNA
7 9 (1.14%) Microsoft Certification
7 9 (1.14%) Security Cleared
8 8 (1.02%) CISM
8 8 (1.02%) SC Cleared
9 7 (0.89%) AWS Certification
9 7 (0.89%) VMware Certified Professional (VCP)
10 6 (0.76%) CEH
10 6 (0.76%) GIAC
11 5 (0.63%) MCP
12 4 (0.51%) CCIE
12 4 (0.51%) MCSE
12 4 (0.51%) OSCP
12 4 (0.51%) RHCE
Quality Assurance & Compliance
1 64 (8.12%) QA
2 28 (3.55%) SLA
3 15 (1.90%) GDPR
4 9 (1.14%) PCI DSS
5 8 (1.02%) ISO/IEC 27001
6 6 (0.76%) Data Quality
7 2 (0.25%) ISO/IEC 20000
7 2 (0.25%) NIST
8 1 (0.13%) Cyber Essentials
8 1 (0.13%) FINRA
8 1 (0.13%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
System Software
1 169 (21.45%) Docker
2 36 (4.57%) Active Directory
3 32 (4.06%) VMware Infrastructure
4 18 (2.28%) Apache ZooKeeper
5 11 (1.40%) Firmware
5 11 (1.40%) Virtual Machines
6 9 (1.14%) Xen
7 8 (1.02%) HDFS
7 8 (1.02%) VMware ESXi
8 7 (0.89%) KVM
9 6 (0.76%) vSphere
10 5 (0.63%) Hyper-V
10 5 (0.63%) NFS
10 5 (0.63%) VMware Workstation
11 4 (0.51%) XenApp
12 3 (0.38%) ProxySG
12 3 (0.38%) Virtual Servers
13 2 (0.25%) XenDesktop
14 1 (0.13%) QEMU
14 1 (0.13%) Varnish
Systems Management
1 135 (17.13%) Ansible
2 119 (15.10%) Kubernetes
3 87 (11.04%) Terraform
4 71 (9.01%) Puppet
5 57 (7.23%) Opscode Chef
6 33 (4.19%) Grafana
7 32 (4.06%) Packer
7 32 (4.06%) Salt
8 15 (1.90%) Prometheus
9 12 (1.52%) Nagios
10 8 (1.02%) Consul
10 8 (1.02%) Kibana
10 8 (1.02%) SCCM
11 7 (0.89%) Data Guard
11 7 (0.89%) Graphite
11 7 (0.89%) Icinga
11 7 (0.89%) Oracle Enterprise Manager
12 6 (0.76%) Oracle RMAN
13 5 (0.63%) Oozie
14 4 (0.51%) ITRS Geneos
Vendors
1 83 (10.53%) Oracle
2 63 (7.99%) VMware
3 56 (7.11%) Google
4 52 (6.60%) Microsoft
5 51 (6.47%) Red Hat
6 26 (3.30%) Cisco
7 25 (3.17%) Sybase
8 16 (2.03%) Atlassian
9 13 (1.65%) ServiceNow
10 12 (1.52%) Citrix
10 12 (1.52%) Reuters
10 12 (1.52%) Splunk
11 11 (1.40%) Veeam
12 10 (1.27%) Bloomberg
12 10 (1.27%) Juniper
13 9 (1.14%) Remedy
14 8 (1.02%) Fortinet
14 8 (1.02%) NetApp
15 7 (0.89%) F5
15 7 (0.89%) IBM