Period
to 21 April 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 21 April 2019 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
21 Apr 2019
Same period 2018 Same period 2017
Rank 19 17 13
Rank change year-on-year -2 -4 +2
Permanent jobs citing Linux 943 1,052 1,357
As % of all permanent IT jobs advertised in the City of London 9.22% 9.74% 13.08%
As % of the Operating Systems category 40.91% 44.77% 50.32%
Number of salaries quoted 816 959 1,222
City of London median annual salary £72,500 £67,500 £62,500
Median salary % change year-on-year +7.41% +8.00% +4.17%
10th Percentile £42,500 £41,250 £36,250
90th Percentile £102,500 £95,000 £101,250
Central London median annual salary £70,000 £65,000 £60,000
% 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 2,305 2,350 2,697
As % of all permanent IT jobs advertised in the City of London 22.55% 21.75% 26.00%
Number of salaries quoted 2,055 2,140 2,450
City of London median annual salary £60,000 £60,000 £57,500
Median salary % change year-on-year - +4.35% +4.55%
10th Percentile £30,000 £31,250 £29,000
90th Percentile £92,500 £88,750 £92,500
Central London median annual salary £60,000 £56,000 £55,000
% change year-on-year +7.14% +1.82% +4.76%

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 21 April 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 21 April 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 +2 3 £47,500 -26.36%
Linux
Central London

For the 6 months to 21 April 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.

1 397 (42.10%) Python
2 352 (37.33%) DevOps
3 349 (37.01%) Amazon AWS
4 307 (32.56%) Finance
5 287 (30.43%) Docker
6 277 (29.37%) Java
7 251 (26.62%) Windows
8 223 (23.65%) SQL
9 194 (20.57%) Ansible
10 190 (20.15%) Agile Software Development
11 184 (19.51%) Unix
12 182 (19.30%) Kubernetes
13 165 (17.50%) Bash Shell
14 151 (16.01%) Puppet
15 131 (13.89%) Microsoft Azure
16 123 (13.04%) Opscode Chef
16 123 (13.04%) C++
17 119 (12.62%) JavaScript
18 118 (12.51%) Git (software)
19 114 (12.09%) Degree
20 113 (11.98%) Terraform
21 112 (11.88%) Configuration Management
22 105 (11.13%) Red Hat
23 103 (10.92%) Firewall
24 101 (10.71%) MySQL
25 100 (10.60%) Oracle
25 100 (10.60%) Jenkins
26 99 (10.50%) Microservices
26 99 (10.50%) Google Cloud Platform
26 99 (10.50%) Ruby

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 66 (7.00%) Apache
2 45 (4.77%) Tomcat
3 36 (3.82%) Apache Spark
4 33 (3.50%) Elasticsearch
5 23 (2.44%) IIS
6 22 (2.33%) OpenStack
7 18 (1.91%) SharePoint
8 15 (1.59%) nginx
9 12 (1.27%) Confluence
10 11 (1.17%) WebSphere
11 6 (0.64%) JBoss
11 6 (0.64%) Oracle Coherence
12 4 (0.42%) CMS
12 4 (0.42%) MS Exchange
12 4 (0.42%) WebLogic
13 3 (0.32%) Ethereum
13 3 (0.32%) Hyperledger
13 3 (0.32%) WordPress
14 1 (0.11%) Drupal
14 1 (0.11%) GlassFish
Applications
1 22 (2.33%) Microsoft Office
2 5 (0.53%) Microsoft PowerPoint
3 4 (0.42%) Maple
4 3 (0.32%) MS Visio
4 3 (0.32%) Spreadsheet
5 2 (0.21%) Microsoft Excel
6 1 (0.11%) Chatbot
6 1 (0.11%) LaTeX
Business Applications
1 3 (0.32%) Distributed Ledger
1 3 (0.32%) R3 Corda
1 3 (0.32%) Salerio
2 2 (0.21%) Oracle Receivables
3 1 (0.11%) Oracle Assets
3 1 (0.11%) Oracle Cash Management
3 1 (0.11%) Oracle EBS R12
3 1 (0.11%) Oracle FAH
3 1 (0.11%) Oracle Financials
3 1 (0.11%) Oracle General Ledger
3 1 (0.11%) Oracle Internet Expenses
3 1 (0.11%) Oracle iProcurement
3 1 (0.11%) Oracle Payables
3 1 (0.11%) Oracle Procure-to-Pay
3 1 (0.11%) Temenos T24
Cloud Services
1 349 (37.01%) Amazon AWS
2 131 (13.89%) Microsoft Azure
3 99 (10.50%) Google Cloud Platform
4 36 (3.82%) AWS CloudFormation
5 33 (3.50%) Amazon EC2
6 28 (2.97%) Office 365
7 27 (2.86%) PaaS
8 25 (2.65%) SaaS
9 22 (2.33%) GitHub
9 22 (2.33%) IaaS
10 21 (2.23%) OpenShift
11 20 (2.12%) Azure Active Directory
12 19 (2.01%) Cloud Computing
13 18 (1.91%) Virtual Private Cloud
14 16 (1.70%) Amazon CloudWatch
15 15 (1.59%) Amazon S3
16 13 (1.38%) Amazon SQS
16 13 (1.38%) Serverless
17 9 (0.95%) AWS Lambda
17 9 (0.95%) Datadog
Communications & Networking
1 103 (10.92%) Firewall
2 65 (6.89%) TCP/IP
3 57 (6.04%) DNS
4 46 (4.88%) SAN
5 41 (4.35%) SSL
6 30 (3.18%) DHCP
7 26 (2.76%) HTTP
8 23 (2.44%) Intrusion Detection
9 17 (1.80%) WAN
10 16 (1.70%) LAN
11 15 (1.59%) Network Security
11 15 (1.59%) VLAN
11 15 (1.59%) VPN
12 14 (1.48%) PBX
12 14 (1.48%) VoIP
13 13 (1.38%) HTTPS
13 13 (1.38%) IPsec
14 12 (1.27%) Wireless
15 9 (0.95%) WLAN
16 7 (0.74%) DMZ
Database & Business Intelligence
1 101 (10.71%) MySQL
2 70 (7.42%) PostgreSQL
3 63 (6.68%) SQL Server
4 59 (6.26%) Big Data
5 50 (5.30%) NoSQL
6 41 (4.35%) Relational Database
7 39 (4.14%) Redis
8 28 (2.97%) Hadoop
8 28 (2.97%) Oracle Database
9 23 (2.44%) MongoDB
10 22 (2.33%) Data Warehouse
11 16 (1.70%) Amazon RDS
12 14 (1.48%) Apache Cassandra
13 13 (1.38%) Blockchain
14 12 (1.27%) Couchbase
15 11 (1.17%) RDBMS
16 10 (1.06%) Apache Ignite
17 9 (0.95%) Flink
17 9 (0.95%) HBase
18 7 (0.74%) SQL Server Integration Services
Development Applications
1 118 (12.51%) Git (software)
2 100 (10.60%) Jenkins
3 41 (4.35%) JIRA
4 34 (3.61%) Maven
5 31 (3.29%) git-flow
6 28 (2.97%) RSpec
7 21 (2.23%) TeamCity
8 19 (2.01%) GitLab
9 18 (1.91%) Sonatype Nexus
10 16 (1.70%) Gradle
11 15 (1.59%) Atlassian Bamboo
12 13 (1.38%) Subversion
13 12 (1.27%) Selenium
13 12 (1.27%) Vagrant
14 9 (0.95%) SonarQube
14 9 (0.95%) Team Foundation Server
15 7 (0.74%) CircleCI
15 7 (0.74%) Hudson
16 6 (0.64%) JUnit
16 6 (0.64%) Octopus Deploy
General
1 307 (32.56%) Finance
2 88 (9.33%) Banking
3 49 (5.20%) Front Office
4 45 (4.77%) Retail
5 29 (3.08%) Financial Institution
6 28 (2.97%) Law
7 20 (2.12%) Back Office
8 18 (1.91%) Games
9 16 (1.70%) Telecoms
10 12 (1.27%) Advertising
10 12 (1.27%) Marketing
11 8 (0.85%) Investment Banking
12 7 (0.74%) Publishing
13 6 (0.64%) Automotive
13 6 (0.64%) Pharmaceutical
14 4 (0.42%) Legal
15 1 (0.11%) Digital Economy
15 1 (0.11%) French Language
15 1 (0.11%) Online Betting
15 1 (0.11%) Spanish Language
Job Titles
1 220 (23.33%) DevOps Engineer
2 211 (22.38%) Developer
3 114 (12.09%) Java Developer
4 96 (10.18%) Linux Engineer
5 87 (9.23%) Linux/Unix DevOps
6 83 (8.80%) AWS DevOps
7 67 (7.10%) Administrator
8 63 (6.68%) AWS Engineer
9 61 (6.47%) Senior Developer
10 58 (6.15%) AWS DevOps Engineer
11 56 (5.94%) Linux DevOps Engineer
12 49 (5.20%) Senior DevOps
13 48 (5.09%) Senior DevOps Engineer
13 48 (5.09%) Senior Java Developer
14 47 (4.98%) Analyst
15 40 (4.24%) Applications Support
15 40 (4.24%) Linux Administrator
15 40 (4.24%) Systems Administrator
16 39 (4.14%) Linux Systems Administrator
17 36 (3.82%) Support Analyst
Libraries, Frameworks & Software Standards
1 73 (7.74%) Spring
2 67 (7.10%) .NET
2 67 (7.10%) Web Services
3 58 (6.15%) HTML
4 57 (6.04%) Node.js
5 52 (5.51%) Elastic Stack
6 41 (4.35%) Kafka
7 39 (4.14%) React
8 36 (3.82%) RESTful
8 36 (3.82%) XML
9 35 (3.71%) CSS
10 29 (3.08%) Spring Boot
11 27 (2.86%) REST
12 26 (2.76%) LAMP
13 25 (2.65%) JSON
14 24 (2.55%) SOAP
15 21 (2.23%) jQuery
16 19 (2.01%) LDAP
17 18 (1.91%) Apache Camel
17 18 (1.91%) FIX Protocol
Miscellaneous
1 85 (9.01%) Data Centre
2 81 (8.59%) Analytical Skills
3 71 (7.53%) Fintech
4 62 (6.57%) Hedge funds
5 54 (5.73%) Public Cloud
6 37 (3.92%) Equities
7 36 (3.82%) Greenfield Project
8 32 (3.39%) Fixed Income
9 30 (3.18%) Derivative
10 25 (2.65%) Self-Motivation
11 20 (2.12%) Clustering
11 20 (2.12%) Management Information System
12 19 (2.01%) Foreign Exchange (FX)
13 18 (1.91%) Algorithms
14 17 (1.80%) Linux Command Line
15 14 (1.48%) Enterprise Software
16 13 (1.38%) Mobile App
17 11 (1.17%) User Experience
18 10 (1.06%) Replication
19 9 (0.95%) Client/Server
Operating Systems
1 251 (26.62%) Windows
2 184 (19.51%) Unix
3 83 (8.80%) Red Hat Enterprise Linux
4 44 (4.67%) CentOS
5 39 (4.14%) Ubuntu
5 39 (4.14%) Windows Server
6 28 (2.97%) Windows Server 2008
7 25 (2.65%) Solaris
8 20 (2.12%) Windows 10
9 17 (1.80%) Apple iOS
10 16 (1.70%) Windows Server 2012
11 15 (1.59%) Mac OS
12 14 (1.48%) Android
13 11 (1.17%) Debian
14 7 (0.74%) CoreOS
14 7 (0.74%) DC/OS
14 7 (0.74%) Mac OS X
14 7 (0.74%) Windows Server 2003
15 6 (0.64%) Amazon Linux
16 4 (0.42%) Data ONTAP
Processes & Methodologies
1 352 (37.33%) DevOps
2 190 (20.15%) Agile Software Development
3 112 (11.88%) Configuration Management
4 99 (10.50%) Microservices
5 94 (9.97%) Software Engineering
6 85 (9.01%) Cybersecurity
7 80 (8.48%) Continuous Integration
8 70 (7.42%) Infrastructure Engineering
9 67 (7.10%) Migration
10 66 (7.00%) Project Management
11 64 (6.79%) Open Source
11 64 (6.79%) Problem-Solving
12 61 (6.47%) Computer Science
13 57 (6.04%) Low Latency
14 54 (5.73%) Information Security
15 53 (5.62%) Mathematics
16 52 (5.51%) TDD
17 49 (5.20%) Analytics
18 48 (5.09%) Release Management
19 47 (4.98%) Continuous Delivery
Programming Languages
1 397 (42.10%) Python
2 277 (29.37%) Java
3 223 (23.65%) SQL
4 165 (17.50%) Bash Shell
5 123 (13.04%) C++
6 119 (12.62%) JavaScript
7 99 (10.50%) Ruby
8 81 (8.59%) Perl
9 64 (6.79%) PowerShell
10 62 (6.57%) C#
11 53 (5.62%) PHP
12 48 (5.09%) Shell Script
13 29 (3.08%) Go
14 26 (2.76%) Groovy
15 23 (2.44%) C
15 23 (2.44%) Java 8
16 21 (2.23%) Scala
17 17 (1.80%) PL/SQL
18 9 (0.95%) TypeScript
19 8 (0.85%) R
Qualifications
1 114 (12.09%) Degree
2 34 (3.61%) Computer Science Degree
3 27 (2.86%) Security Cleared
4 24 (2.55%) CISSP
5 23 (2.44%) AWS Certification
5 23 (2.44%) Numerate Degree
6 15 (1.59%) CREST Certified
7 14 (1.48%) Cisco Certification
8 12 (1.27%) RHCE
9 11 (1.17%) CISM
9 11 (1.17%) Microsoft Certification
9 11 (1.17%) RHCSA
10 9 (0.95%) CCNA
11 8 (0.85%) SC Cleared
11 8 (0.85%) TOGAF Certification
12 7 (0.74%) DV Cleared
12 7 (0.74%) GIAC
12 7 (0.74%) ITIL Certification
12 7 (0.74%) MCSA
12 7 (0.74%) MCSE
Quality Assurance & Compliance
1 38 (4.03%) QA
2 10 (1.06%) MiFID
3 8 (0.85%) SLA
4 4 (0.42%) Data Quality
4 4 (0.42%) GDPR
4 4 (0.42%) ISO/IEC 27001
4 4 (0.42%) PCI DSS
System Software
1 287 (30.43%) Docker
2 73 (7.74%) Active Directory
3 61 (6.47%) VMware Infrastructure
4 34 (3.61%) Virtual Machines
5 17 (1.80%) VMware ESXi
6 10 (1.06%) Apache ZooKeeper
6 10 (1.06%) HDFS
7 8 (0.85%) Firmware
7 8 (0.85%) Oracle RAC
8 7 (0.74%) VMware NSX
9 6 (0.64%) NFS
9 6 (0.64%) vSphere
10 5 (0.53%) Hyper-V
10 5 (0.53%) iptables
10 5 (0.53%) XenApp
11 4 (0.42%) Veritas Cluster Server
12 2 (0.21%) KVM
12 2 (0.21%) LXC
12 2 (0.21%) Snort
13 1 (0.11%) VirtualBox
Systems Management
1 194 (20.57%) Ansible
2 182 (19.30%) Kubernetes
3 151 (16.01%) Puppet
4 123 (13.04%) Opscode Chef
5 113 (11.98%) Terraform
6 48 (5.09%) Prometheus
7 44 (4.67%) Packer
7 44 (4.67%) Salt
8 31 (3.29%) Consul
9 29 (3.08%) Icinga
10 23 (2.44%) Nagios
11 21 (2.23%) Grafana
12 17 (1.80%) Docker Swarm
13 14 (1.48%) Mesos
14 13 (1.38%) NetBackup
14 13 (1.38%) vCenter Server
15 12 (1.27%) Kibana
16 11 (1.17%) HAProxy
17 10 (1.06%) Red Hat Satellite
18 9 (0.95%) logstash
Vendors
1 105 (11.13%) Red Hat
2 100 (10.60%) Oracle
3 85 (9.01%) VMware
4 73 (7.74%) Microsoft
5 54 (5.73%) Google
6 32 (3.39%) Sybase
7 25 (2.65%) HP
8 24 (2.55%) Cisco
8 24 (2.55%) Citrix
9 19 (2.01%) NetApp
10 14 (1.48%) Veritas
11 12 (1.27%) CyberArk
12 11 (1.17%) F5
13 7 (0.74%) TIBCO
14 6 (0.64%) Atlassian
14 6 (0.64%) Dell
14 6 (0.64%) GoldenSource
14 6 (0.64%) Remedy
14 6 (0.64%) Salesforce.com
14 6 (0.64%) Zend