Period
to 17 September 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 17 September 2019 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
17 Sep 2019
Same period 2018 Same period 2017
Rank 20 20 13
Rank change year-on-year 0 -7 +2
Permanent jobs citing Linux 963 1,100 1,217
As % of all permanent IT jobs advertised in the City of London 9.51% 10.03% 12.08%
As % of the Operating Systems category 40.14% 46.51% 48.80%
Number of salaries quoted 807 1,007 1,113
City of London median annual salary £72,500 £67,500 £60,000
Median salary % change year-on-year +7.41% +12.50% -
10th Percentile £45,000 £41,250 £35,000
90th Percentile £112,500 £95,000 £95,000
Central London median annual salary £70,000 £65,000 £59,000
% change year-on-year +7.69% +10.17% -1.67%

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 2,399 2,365 2,494
As % of all permanent IT jobs advertised in the City of London 23.68% 21.56% 24.76%
Number of salaries quoted 2,068 2,114 2,250
City of London median annual salary £62,500 £60,000 £55,000
Median salary % change year-on-year +4.17% +9.09% -
10th Percentile £28,750 £28,825 £30,750
90th Percentile £95,000 £90,000 £86,250
Central London median annual salary £60,000 £60,000 £52,500
% change year-on-year - +14.29% -4.55%

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 September 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 17 September 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 -13 2 £52,500 +0.96%
Linux
Central London

For the 6 months to 17 September 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.

1 453 (47.04%) Python
2 382 (39.67%) AWS
3 340 (35.31%) Finance
4 336 (34.89%) DevOps
5 330 (34.27%) Docker
6 283 (29.39%) Windows
7 235 (24.40%) Unix
8 234 (24.30%) Kubernetes
9 220 (22.85%) Agile Software Development
10 216 (22.43%) Java
11 192 (19.94%) Terraform
12 185 (19.21%) Ansible
13 184 (19.11%) SQL
14 175 (18.17%) Bash Shell
15 152 (15.78%) Azure
16 146 (15.16%) GCP
17 143 (14.85%) Degree
18 123 (12.77%) MySQL
19 121 (12.56%) Puppet
20 118 (12.25%) C++
21 117 (12.15%) Microservices
22 116 (12.05%) Computer Science
23 109 (11.32%) Software Engineering
24 106 (11.01%) C#
25 105 (10.90%) JavaScript
26 96 (9.97%) Fintech
27 95 (9.87%) PostgreSQL
28 94 (9.76%) Problem-Solving
29 91 (9.45%) Banking
30 89 (9.24%) SQL Server

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 57 (5.92%) Apache
2 26 (2.70%) Confluence
2 26 (2.70%) OpenStack
3 24 (2.49%) Apache Spark
4 21 (2.18%) Elasticsearch
5 19 (1.97%) Tomcat
6 17 (1.77%) nginx
7 15 (1.56%) IIS
8 10 (1.04%) Cloud Foundry
9 5 (0.52%) MS Exchange
10 4 (0.42%) Oracle Coherence
11 3 (0.31%) CMS
11 3 (0.31%) SharePoint
12 2 (0.21%) Apache Airflow
12 2 (0.21%) Luigi
13 1 (0.10%) JBoss
13 1 (0.10%) WebLogic
13 1 (0.10%) WebSphere
13 1 (0.10%) WildFly
13 1 (0.10%) WordPress
Applications
1 15 (1.56%) Microsoft Office
2 3 (0.31%) Spreadsheet
3 1 (0.10%) Chatbot
3 1 (0.10%) LaTeX
Business Applications
1 3 (0.31%) SnowdropKCS
2 1 (0.10%) Shopify
Cloud Services
1 382 (39.67%) AWS
2 152 (15.78%) Azure
3 146 (15.16%) GCP
4 37 (3.84%) AWS CloudFormation
5 24 (2.49%) Serverless
6 21 (2.18%) SaaS
7 19 (1.97%) OpenShift
7 19 (1.97%) PaaS
8 18 (1.87%) Datadog
8 18 (1.87%) IaaS
9 17 (1.77%) AWS Lambda
9 17 (1.77%) Office 365
10 15 (1.56%) Amazon EC2
10 15 (1.56%) Amazon ECS
11 14 (1.45%) Heroku
12 13 (1.35%) GitHub
13 11 (1.14%) Cloud Computing
13 11 (1.14%) Virtual Private Cloud
14 10 (1.04%) Amazon CloudWatch
14 10 (1.04%) Amazon S3
Communications & Networking
1 80 (8.31%) TCP/IP
2 74 (7.68%) Firewall
3 50 (5.19%) DNS
4 48 (4.98%) HTTP
5 43 (4.47%) SAN
6 40 (4.15%) Intrusion Detection
7 27 (2.80%) WAN
8 26 (2.70%) DHCP
9 25 (2.60%) HTTPS
9 25 (2.60%) LAN
10 23 (2.39%) IPsec
11 17 (1.77%) Internet
11 17 (1.77%) SSL
12 14 (1.45%) VPN
13 13 (1.35%) Network Security
14 12 (1.25%) Wireless
15 8 (0.83%) WLAN
16 7 (0.73%) DMZ
16 7 (0.73%) NAS
16 7 (0.73%) Software-Defined Networking
Database & Business Intelligence
1 123 (12.77%) MySQL
2 95 (9.87%) PostgreSQL
3 89 (9.24%) SQL Server
4 75 (7.79%) NoSQL
5 69 (7.17%) Big Data
6 46 (4.78%) Relational Database
7 40 (4.15%) Oracle Database
8 37 (3.84%) Apache Cassandra
9 26 (2.70%) Hadoop
10 22 (2.28%) Oracle Database 12c
11 20 (2.08%) Redis
12 17 (1.77%) Blockchain
12 17 (1.77%) MongoDB
13 12 (1.25%) Apache Hive
13 12 (1.25%) Data Warehouse
14 9 (0.93%) BigQuery
15 8 (0.83%) Amazon RDS
15 8 (0.83%) Data Mining
15 8 (0.83%) SQL Server Integration Services
16 7 (0.73%) SQL Server Analysis Services
Development Applications
1 86 (8.93%) Git (software)
1 86 (8.93%) Jenkins
2 43 (4.47%) JIRA
3 27 (2.80%) Bitbucket
4 22 (2.28%) Maven
5 21 (2.18%) git-flow
6 16 (1.66%) GitLab
7 15 (1.56%) TeamCity
8 13 (1.35%) Subversion
9 12 (1.25%) Cucumber
10 11 (1.14%) RSpec
11 9 (0.93%) Vagrant
12 8 (0.83%) Sonatype Nexus
12 8 (0.83%) Visual Studio
13 7 (0.73%) Atlassian Bamboo
13 7 (0.73%) CF BOSH
13 7 (0.73%) webpack
14 6 (0.62%) gulp
14 6 (0.62%) Selenium
15 5 (0.52%) JUnit
General
1 340 (35.31%) Finance
2 91 (9.45%) Banking
3 34 (3.53%) Front Office
3 34 (3.53%) Telecoms
4 33 (3.43%) Retail
5 29 (3.01%) Investment Banking
6 20 (2.08%) Financial Institution
7 16 (1.66%) Advertising
8 11 (1.14%) Law
8 11 (1.14%) Marketing
9 10 (1.04%) Games
10 7 (0.73%) Public Sector
11 6 (0.62%) Publishing
12 5 (0.52%) Back Office
12 5 (0.52%) Legal
13 4 (0.42%) Manufacturing
14 3 (0.31%) Electronics
14 3 (0.31%) International Banking
15 2 (0.21%) Retail Banking
Job Titles
1 253 (26.27%) DevOps Engineer
2 220 (22.85%) Developer
3 118 (12.25%) AWS Engineer
4 111 (11.53%) AWS DevOps
5 105 (10.90%) AWS DevOps Engineer
6 100 (10.38%) Linux Engineer
7 85 (8.83%) Linux/Unix DevOps
8 84 (8.72%) Python Engineer
9 80 (8.31%) Cloud Engineer
10 79 (8.20%) Linux DevOps Engineer
11 66 (6.85%) Senior Developer
12 64 (6.65%) Kubernetes Engineer
13 51 (5.30%) Architect
13 51 (5.30%) Senior DevOps
13 51 (5.30%) Senior DevOps Engineer
14 49 (5.09%) Java Developer
14 49 (5.09%) Software Engineer
15 45 (4.67%) Python Developer
16 42 (4.36%) Analyst
17 39 (4.05%) Support Engineer
Libraries, Frameworks & Software Standards
1 87 (9.03%) Node.js
2 66 (6.85%) .NET
3 57 (5.92%) Web Services
4 52 (5.40%) Elastic Stack
5 51 (5.30%) Kafka
6 50 (5.19%) React
7 48 (4.98%) Spring
8 37 (3.84%) REST
9 36 (3.74%) XML
10 35 (3.63%) HTML
11 30 (3.12%) RabbitMQ
12 29 (3.01%) AngularJS
13 28 (2.91%) Spring Boot
14 27 (2.80%) .NET Core
14 27 (2.80%) FIX Protocol
15 25 (2.60%) CSS
15 25 (2.60%) RESTful
16 24 (2.49%) LAMP
17 22 (2.28%) jQuery
18 20 (2.08%) LDAP
Miscellaneous
1 72 (7.48%) Analytical Skills
2 57 (5.92%) Data Centre
2 57 (5.92%) Fixed Income
3 48 (4.98%) Hedge funds
4 46 (4.78%) Greenfield Project
5 37 (3.84%) Self-Motivation
6 32 (3.32%) Public Cloud
7 30 (3.12%) Equities
8 29 (3.01%) Derivative
9 23 (2.39%) Algorithms
10 22 (2.28%) Video\Live Streaming
11 16 (1.66%) Foreign Exchange (FX)
11 16 (1.66%) Linux Command Line
11 16 (1.66%) Management Information System
12 15 (1.56%) User Experience
13 13 (1.35%) Cyberthreat
14 10 (1.04%) Data Structures
14 10 (1.04%) Distributed Denial-of-Service
14 10 (1.04%) Virtual Team
15 9 (0.93%) Cloud Native
Operating Systems
1 283 (29.39%) Windows
2 235 (24.40%) Unix
3 61 (6.33%) Windows Server
4 50 (5.19%) Red Hat Enterprise Linux
5 29 (3.01%) Ubuntu
6 25 (2.60%) Mac OS
7 21 (2.18%) CentOS
8 18 (1.87%) Windows Server 2008
8 18 (1.87%) Windows Server 2012
9 13 (1.35%) Solaris
10 9 (0.93%) Mac OS X
11 8 (0.83%) Apple iOS
12 7 (0.73%) Data ONTAP
12 7 (0.73%) Windows 10
13 6 (0.62%) Android
13 6 (0.62%) Debian
14 4 (0.42%) Windows Server 2003
15 2 (0.21%) Amazon Linux
15 2 (0.21%) Fedora
15 2 (0.21%) Windows 7
Processes & Methodologies
1 336 (34.89%) DevOps
2 220 (22.85%) Agile Software Development
3 117 (12.15%) Microservices
4 116 (12.05%) Computer Science
5 109 (11.32%) Software Engineering
6 96 (9.97%) Fintech
7 94 (9.76%) Problem-Solving
8 83 (8.62%) Low Latency
9 82 (8.52%) OO
10 73 (7.58%) Machine Learning
11 69 (7.17%) Cybersecurity
12 68 (7.06%) Configuration Management
12 68 (7.06%) Continuous Integration
13 64 (6.65%) Artificial Intelligence
14 63 (6.54%) Test Automation
15 60 (6.23%) Analytics
16 59 (6.13%) Infrastructure as Code
17 58 (6.02%) Data Science
17 58 (6.02%) OOP
18 57 (5.92%) SDLC
Programming Languages
1 453 (47.04%) Python
2 216 (22.43%) Java
3 184 (19.11%) SQL
4 175 (18.17%) Bash Shell
5 118 (12.25%) C++
6 106 (11.01%) C#
7 105 (10.90%) JavaScript
8 81 (8.41%) Ruby
9 48 (4.98%) Go
10 44 (4.57%) Perl
11 40 (4.15%) PHP
11 40 (4.15%) Shell Script
12 37 (3.84%) PowerShell
12 37 (3.84%) TypeScript
13 24 (2.49%) Java 8
14 17 (1.77%) C
14 17 (1.77%) Scala
15 14 (1.45%) T-SQL
16 10 (1.04%) VB.NET
17 8 (0.83%) R
Qualifications
1 143 (14.85%) Degree
2 50 (5.19%) Computer Science Degree
3 22 (2.28%) Master's Degree
4 21 (2.18%) Security Cleared
5 16 (1.66%) CISSP
6 15 (1.56%) AWS Certification
7 13 (1.35%) Cisco Certification
8 10 (1.04%) Microsoft Certification
9 8 (0.83%) TOGAF Certification
9 8 (0.83%) VMware Certified Professional (VCP)
10 7 (0.73%) CCNP
10 7 (0.73%) CISA
10 7 (0.73%) GIAC
10 7 (0.73%) SC Cleared
11 6 (0.62%) CREST Certified
11 6 (0.62%) MCSD
12 5 (0.52%) JNCIP
12 5 (0.52%) PhD
12 5 (0.52%) RHCE
12 5 (0.52%) RHCSA
Quality Assurance & Compliance
1 75 (7.79%) QA
2 14 (1.45%) SLA
3 12 (1.25%) GDPR
4 7 (0.73%) ISO/IEC 27001
5 6 (0.62%) Data Quality
6 5 (0.52%) MiFID
7 4 (0.42%) PCI DSS
8 1 (0.10%) NIST
System Software
1 330 (34.27%) Docker
2 40 (4.15%) Active Directory
3 38 (3.95%) VMware Infrastructure
4 20 (2.08%) Virtual Machines
5 19 (1.97%) vSphere
6 16 (1.66%) Hyper-V
7 14 (1.45%) KVM
8 12 (1.25%) VMware ESXi
9 9 (0.93%) Cronacle
9 9 (0.93%) Veritas File System
9 9 (0.93%) Veritas Volume Manager
10 7 (0.73%) HDFS
10 7 (0.73%) VMware NSX
10 7 (0.73%) Xen
11 6 (0.62%) Varnish
12 5 (0.52%) NFS
12 5 (0.52%) Virtual Servers
12 5 (0.52%) XenApp
13 4 (0.42%) Ceph
13 4 (0.42%) Gluster
Systems Management
1 234 (24.30%) Kubernetes
2 192 (19.94%) Terraform
3 185 (19.21%) Ansible
4 121 (12.56%) Puppet
5 71 (7.37%) Opscode Chef
6 33 (3.43%) Packer
7 32 (3.32%) Prometheus
8 22 (2.28%) Salt
9 15 (1.56%) Kibana
10 14 (1.45%) Grafana
11 12 (1.25%) Consul
12 10 (1.04%) Icinga
12 10 (1.04%) ITRS Geneos
13 8 (0.83%) Nagios
14 6 (0.62%) Mesos
15 5 (0.52%) NetBackup
15 5 (0.52%) QRadar
15 5 (0.52%) SCCM
16 4 (0.42%) Red Hat Satellite
16 4 (0.42%) ZABBIX
Vendors
1 83 (8.62%) VMware
2 81 (8.41%) Oracle
3 71 (7.37%) Red Hat
4 52 (5.40%) Google
4 52 (5.40%) Microsoft
5 45 (4.67%) Cisco
6 23 (2.39%) CyberArk
7 18 (1.87%) Salesforce.com
7 18 (1.87%) Zend
8 17 (1.77%) Reuters
9 16 (1.66%) Sybase
10 15 (1.56%) Citrix
10 15 (1.56%) Veritas
11 14 (1.45%) Splunk
12 13 (1.35%) Atlassian
13 10 (1.04%) Juniper
14 8 (0.83%) GoldenSource
14 8 (0.83%) HP
14 8 (0.83%) New Relic
15 7 (0.73%) Dell